What are the cheapest airlines flying from Sydney to Seattle round-trip?

Currently priced at $1,320, United Airlines will fly you from Sydney to Seattle and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Hawaiian Airlines and American Airlines - these airlines can fly you to your destination from $1,351 and $1,377, respectively. Users have found that United Airlines is 23% cheaper than the other options available to this destination. Find deals

What are the cheapest airlines to fly from Sydney to Seattle one-way?

For one-way options, check prices for Qantas Airways. According to our data, you can fly for as low as $757. Users have also found prices from $788 and $795 on Delta and United Airlines, respectively. Find deals

What are the most popular airlines that fly from Sydney to Seattle?

American Airlines, Air Canada and Delta are the most popular airlines when flying from Sydney to Seattle.

Where are the most common stopover locations when flying from Sydney to Seattle?

Of the flights from Sydney to Seattle that have stopovers, most of them stop in Vancouver.

Where are the least popular stopover locations for Sydney to Seattle flights?

The least popular stopover on flights from Sydney to Seattle is San Francisco.

What is the cheapest day to fly return from Sydney to Seattle?

Users have found that flying from Sydney to Seattle on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Sydney to Seattle?

To save up to 21% on this flight, we recommend booking at least 32 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Sydney to Seattle from $1,486 1-2 weeks out and tickets from $1,836 for flights departing within the next 72 hours.

What is the cheapest month to fly from Sydney to Seattle?

February is one of the best times of the year to fly to Seattle from Sydney. Prices for February average $1,732 per person but you can even find prices for as low as $1,241. The most expensive prices can be found in the month of December. Opting for a February flight can save you 28% on your journey compared to booking in December

Can I find deals for flights from Sydney to Seattle that include hotel bookings?

Yes. In addition to deals on Sydney to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Sydney to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Seattle.

Can I find deals for business class flights from Sydney to Seattle?

Yes. Cheapflights offers flight deals from Sydney to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$706+ Flights from Sydney to Seattle

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Seattle/Tacoma Intl are usually found in February or March, booked 31 days in advance, depart on a Thursday or Tuesday and return on a Monday

Cheap flight deals from Sydney to Seattle

Round-trip from	$1,320
One-way from	$706
Popular in	December
Cheapest in	February
Average price	$1,634

United Airlines
11/7-4/8
3 total stops
49h 12m total
Sydney to Seattle

Search Deals

13/8
1 total stop
30h 40m total
Sydney to Seattle

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($254 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($70 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Sydney to Seattle

Cheapest flights from Sydney to Seattle
Explore the most affordable flight options available from Sydney to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.

Thu 19/609:30SYD - SEA

1 stop29h 28mUnited Airlines

Wed 2/712:40SEA - SYD

1 stop25h 15mUnited Airlines

Deal found 17/6$1,290

Thu 19/609:25SYD - SEA

2 stops24h 22mDelta

Wed 2/713:30SEA - SYD

2 stops24h 05mDelta

Deal found 17/6$1,330

Thu 28/813:15SYD - SEA

2 stops22h 35mMultiple Airlines

Fri 5/916:30SEA - SYD

1 stop23h 55mMultiple Airlines

Deal found 17/6$1,345

Fri 1/821:40SYD - SEA

1 stop25h 20mHawaiian Airlines

Fri 8/808:15SEA - SYD

1 stop18h 30mHawaiian Airlines

Deal found 17/6$1,351

Wed 10/909:10SYD - SEA

2 stops24h 30mAmerican Airlines

Mon 13/1010:00SEA - SYD

2 stops28h 05mAmerican Airlines

Deal found 16/6$1,377

Fri 7/1121:40SYD - SEA

1 stop18h 52mAlaska Airlines

Tue 11/1115:55SEA - SYD

1 stop32h 50mAlaska Airlines

Deal found 17/6$1,394

Thu 20/1110:30SYD - SEA

1 stop22h 25mAsiana Airlines

Thu 27/1100:10SEA - SYD

1 stop37h 20mAsiana Airlines

Deal found 17/6$1,399

Sat 13/917:45SYD - SEA

1 stop19h 39mQantas Airways

Tue 30/917:59SEA - SYD

1 stop20h 31mQantas Airways

Deal found 17/6$1,402

Thu 11/909:20SYD - SEA

1 stop17h 01mAir Canada

Thu 16/1010:00SEA - SYD

1 stop28h 20mAir Canada

Deal found 16/6$1,535

Wed 16/720:55SYD - SEA

2 stops38h 41mANA

Thu 31/716:30SEA - SYD

1 stop33h 45mANA

Deal found 18/6$1,690

Mon 8/910:20SYD - SEA

1 stop20h 08mVirgin Australia

Thu 16/1006:35SEA - SYD

1 stop31h 25mVirgin Australia

Deal found 16/6$1,701

Wed 27/822:10SYD - SEA

1 stop38h 35mChina Airlines

Thu 4/901:40SEA - SYD

1 stop40h 05mChina Airlines

Deal found 17/6$1,829

Best flights from Sydney to Seattle
Discover carefully curated flight deals from Sydney to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 June 2025.

Fri 11/709:30SYD - SEA

2 stops28h 26mUnited Airlines

Mon 4/817:14SEA - SYD

1 stop20h 46mUnited Airlines

Deal found 15/6$1,320

Thu 28/813:15SYD - SEA

2 stops22h 35mMultiple Airlines

Fri 5/916:30SEA - SYD

1 stop23h 55mMultiple Airlines

Deal found 17/6$1,345

Fri 1/821:40SYD - SEA

1 stop25h 20mHawaiian Airlines

Fri 8/808:15SEA - SYD

1 stop18h 30mHawaiian Airlines

Deal found 17/6$1,351

Wed 10/909:10SYD - SEA

2 stops24h 30mAmerican Airlines

Mon 13/1010:00SEA - SYD

2 stops28h 05mAmerican Airlines

Deal found 16/6$1,377

Sat 13/917:45SYD - SEA

1 stop19h 39mQantas Airways

Tue 30/917:59SEA - SYD

1 stop20h 31mQantas Airways

Deal found 17/6$1,402

Fri 1/809:25SYD - SEA

1 stop20h 14mDelta

Sat 9/807:20SEA - SYD

1 stop30h 15mDelta

Deal found 16/6$1,486

Thu 31/721:40SYD - SEA

2 stops26h 31mAlaska Airlines

Thu 7/808:15SEA - SYD

1 stop18h 30mAlaska Airlines

Deal found 16/6$1,492

Thu 11/909:20SYD - SEA

1 stop17h 01mAir Canada

Thu 16/1010:00SEA - SYD

1 stop28h 20mAir Canada

Deal found 16/6$1,535

Wed 10/909:30SYD - SEA

1 stop44h 00mAsiana Airlines

Thu 16/1014:15SEA - SYD

1 stop24h 15mAsiana Airlines

Deal found 16/6$1,657

Wed 16/720:55SYD - SEA

2 stops38h 41mANA

Thu 31/716:30SEA - SYD

1 stop33h 45mANA

Deal found 18/6$1,690

Mon 8/910:20SYD - SEA

1 stop20h 08mVirgin Australia

Thu 16/1006:35SEA - SYD

1 stop31h 25mVirgin Australia

Deal found 16/6$1,701

Wed 27/822:10SYD - SEA

1 stop38h 35mChina Airlines

Thu 4/901:40SEA - SYD

1 stop40h 05mChina Airlines

Deal found 17/6$1,829

Last-minute flights from Sydney to Seattle
Discover last-minute flight deals from Sydney to Seattle. Data last updated 18 June 2025 and is based on user searches.

Thu 19/609:30SYD - SEA

1 stop29h 28mUnited Airlines

Wed 2/712:40SEA - SYD

1 stop25h 15mUnited Airlines

Deal found 17/6$1,290

Thu 19/609:25SYD - SEA

2 stops24h 22mDelta

Wed 2/713:30SEA - SYD

2 stops24h 05mDelta

Deal found 17/6$1,330

Thu 26/610:20SYD - SEA

1 stop39h 28mUnited Airlines

Wed 16/709:50SEA - SYD

1 stop28h 05mUnited Airlines

Deal found 16/6$2,125

Thu 26/620:55SYD - SEA

2 stops41h 01mANA

Wed 16/710:00SEA - SYD

2 stops40h 15mANA

Deal found 17/6$2,470

Thu 26/608:55SYD - SEA

3 stops28h 05mMultiple Airlines

Wed 16/715:44SEA - SYD

2 stops22h 46mMultiple Airlines

Deal found 16/6$4,390

Fri 27/610:10SYD - SEA

1 stop26h 05mPhilippine Airlines

Fri 18/723:35SEA - SYD

1 stop39h 25mPhilippine Airlines

Deal found 17/6$1,896

Fri 27/621:40SYD - SEA

1 stop18h 44mHawaiian Airlines

Tue 22/711:25SEA - SYD

1 stop39h 20mHawaiian Airlines

Deal found 16/6$2,323

Fri 27/609:10SYD - SEA

2 stops21h 59mAmerican Airlines

Fri 18/707:05SEA - SYD

2 stops31h 00mAmerican Airlines

Deal found 16/6$2,524

Fri 27/622:10SYD - SEA

1 stop38h 20mChina Airlines

Mon 21/701:40SEA - SYD

1 stop40h 05mChina Airlines

Deal found 16/6$3,578

Fri 27/615:00SYD - SEA

3 stops45h 58mSingapore Airlines

Tue 22/711:06SEA - SYD

2 stops39h 09mSingapore Airlines

Deal found 17/6$7,132

Sat 28/617:45SYD - SEA

1 stop21h 00mQantas Airways

Fri 11/714:30SEA - SYD

1 stop24h 00mQantas Airways

Deal found 17/6$9,228

Mon 30/607:55SYD - SEA

1 stop43h 55mKorean Air

Sun 20/713:20SEA - SYD

1 stop24h 00mKorean Air

Deal found 17/6$2,724

One-way flights from Sydney to Seattle
Search for one-way flight options from Sydney to Seattle. Find affordable one-way fares based on user searches. Data last updated 18 June 2025.

Wed 13/816:20SYD - SEA

1 stop30h 40mMultiple Airlines

Deal found 15/6$706

Mon 11/809:10SYD - SEA

1 stop27h 50mQantas Airways

Deal found 15/6$757

Mon 21/709:25SYD - SEA

2 stops31h 34mDelta

Deal found 16/6$788

Fri 27/610:20SYD - SEA

2 stops38h 41mUnited Airlines

Deal found 16/6$795

Thu 10/720:30SYD - SEA

2 stops34h 30mAmerican Airlines

Deal found 18/6$831

Sun 6/709:30SYD - SEA

1 stop44h 15mAsiana Airlines

Deal found 16/6$1,133

Tue 2/911:50SYD - SEA

2 stops28h 09mANA

Deal found 17/6$1,207

Thu 14/808:55SYD - SEA

3 stops28h 05mAir Tahiti Nui

Deal found 15/6$1,583

Tue 12/813:15SYD - SEA

3 stops44h 35mFiji Airways

Deal found 15/6$1,909

Mon 11/809:20SYD - SEA

3 stops52h 21mAir Canada

Deal found 15/6$2,153

Thu 10/715:00SYD - SEA

3 stops45h 58mSingapore Airlines

Deal found 18/6$2,254

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sydney to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 11/7

09:30-20:56

2 stops28h 26m

Seattle/Tacoma Intl

Mon 4/8

17:14-07:00

1 stop20h 46m

$1,320

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 28/8

13:15-18:50

2 stops22h 35m

Seattle/Tacoma Intl

Fri 5/9

16:30-09:25

1 stop23h 55m

$1,345

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 1/8

21:40-06:00

1 stop25h 20m

Seattle/Tacoma Intl

Fri 8/8

08:15-19:45

1 stop18h 30m

$1,351

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 10/9

09:10-16:40

2 stops24h 30m

Seattle/Tacoma Intl

Mon 13/10

10:00-08:05

2 stops28h 05m

$1,377

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 7/11

21:40-21:32

1 stop18h 52m

Seattle/Tacoma Intl

Tue 11/11

15:55-19:45

1 stop32h 50m

$1,394

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 20/11

10:30-13:55

1 stop22h 25m

Seattle/Tacoma Intl

Thu 27/11

00:10-08:30

1 stop37h 20m

$1,399

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 13/9

17:45-20:24

1 stop19h 39m

Seattle/Tacoma Intl

Tue 30/9

17:59-07:30

1 stop20h 31m

$1,402

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 1/8

09:25-12:39

1 stop20h 14m

Seattle/Tacoma Intl

Sat 9/8

07:20-06:35

1 stop30h 15m

$1,486

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 11/9

09:20-09:21

1 stop17h 01m

Seattle/Tacoma Intl

Thu 16/10

10:00-08:20

1 stop28h 20m

$1,535

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 16/7

20:55-18:36

2 stops38h 41m

Seattle/Tacoma Intl

Thu 31/7

16:30-19:15

1 stop33h 45m

$1,690

Flights are sorted by cheapest return flights first.

Deals found on 15/6

Showing 1-10 of 31 results

Best time to book a flight from Sydney to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Sydney with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Seattle

How far ahead should I book a flight from Sydney to Seattle?

Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Sydney to Seattle?

Currently, March is the cheapest month in which you can book a flight from Sydney to Seattle (average of $875). Flying from Sydney to Seattle in December is currently the most expensive (average of $1,434). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SYD to SEA?

One of the essential ways to save on airfare from Sydney to Seattle is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at midday could potentially save you up to 19% on airfare.

What is the cheapest day to fly from Sydney to Seattle?

Travellers seeking maximum savings on their Sydney to Seattle flight should consider departing on Saturday at midday when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Air Tahiti Nui, Korean Air and Japan Airlines from Sydney to Seattle by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui

8.7

Very Good

64 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Korean Air

8.4

Very Good

1,090 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Japan Airlines

8.3

Very Good

1,494 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

China Airlines

8.3

Very Good

742 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

ANA

8.3

Very Good

886 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Related info for your journey

What are the cheapest airlines flying from Sydney to Seattle round-trip?
Currently priced at $1,320, United Airlines will fly you from Sydney to Seattle and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Hawaiian Airlines and American Airlines - these airlines can fly you to your destination from $1,351 and $1,377, respectively. Users have found that United Airlines is 23% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Sydney to Seattle one-way?
For one-way options, check prices for Qantas Airways. According to our data, you can fly for as low as $757. Users have also found prices from $788 and $795 on Delta and United Airlines, respectively.
Where are the most common stopover locations when flying from Sydney to Seattle?
Of the flights from Sydney to Seattle that have stopovers, most of them stop in Vancouver.
Where are the least popular stopover locations for Sydney to Seattle flights?
The least popular stopover on flights from Sydney to Seattle is San Francisco.
Can I find deals for flights from Sydney to Seattle that include hotel bookings?
Yes. In addition to deals on Sydney to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Sydney to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Seattle.
Can I find deals for business class flights from Sydney to Seattle?
Yes. Cheapflights offers flight deals from Sydney to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Sydney to Seattle?
Currently, March is the cheapest month in which you can book a flight from Sydney to Seattle (average of $875). Flying from Sydney to Seattle in December is currently the most expensive (average of $1,434). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Leavenworth

Browse thousands of different options on Cheapflights for your next trip

Fly from Sydney to Seattle on these airlines

Air Canada flights from Sydney Kingsford Smith to Seattle/Tacoma Intl

Hawaiian Airlines flights from Sydney Kingsford Smith to Seattle/Tacoma Intl

Top 10 airlines flying from Sydney to Seattle

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,220	Average$1,726	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Asiana Airlines	Cheapest$1,240	Average$1,576	FlexibilityNo cancel fee	On-time76%	Search Asiana Airlines flights
Air Canada	Cheapest$1,245	Average$1,623	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Qantas Airways	Cheapest$1,272	Average$1,659	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Delta	Cheapest$1,321	Average$2,181	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Philippine Airlines	Cheapest$1,333	Average$1,481	FlexibilityNo cancel fee	On-time60%	Search Philippine Airlines flights
Hawaiian Airlines	Cheapest$1,360	Average$1,903	FlexibilityNo cancel fee	On-time85%	Search Hawaiian Airlines flights
Air New Zealand	Cheapest$1,377	Average$1,436	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
American Airlines	Cheapest$1,428	Average$1,763	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Virgin Australia	Cheapest$1,448	Average$2,306	FlexibilityNo cancel fee	On-time80%	Search Virgin Australia flights

Fly with Cheapflights

How does Cheapflights help users find flights from Sydney to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sydney to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Sydney.

Can Cheapflights find flights from Sydney to Seattle with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Seattle flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Sydney to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Sydney to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Sydney to Seattle from $706

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Seattle/Tacoma Intl are usually found in February or March, booked 31 days in advance, depart on a Thursday or Tuesday and return on a Monday

Cheap flight deals from Sydney to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Sydney to Seattle

Cheapest flights from Sydney to SeattleExplore the most affordable flight options available from Sydney to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.

Explore the most affordable flight options available from Sydney to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sydney to Seattle that are best for you.

Best time to book a flight from Sydney to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Sydney with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Seattle

How far ahead should I book a flight from Sydney to Seattle?

Use this chart to determine the optimal time to book a return flight from Sydney to Seattle. Price data was last updated on 13 June 2025.

What is the cheapest month to book a flight from Sydney to Seattle?

What is the cheapest time of day to fly from SYD to SEA?

Find hourly flight availability from Sydney to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 June 2025.

What is the cheapest day to fly from Sydney to Seattle?

Use this chart to determine the cheapest time to fly return from Sydney to Seattle. Price data was last updated on 16 December 2024.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

Reviews of airlines servicing Seattle

Related info for your journey

Find useful and relevant information for your journey from Sydney to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Sydney to Seattle round-trip?

What are the cheapest airlines to fly from Sydney to Seattle one-way?

Where are the most common stopover locations when flying from Sydney to Seattle?

Where are the least popular stopover locations for Sydney to Seattle flights?

Can I find deals for flights from Sydney to Seattle that include hotel bookings?

How can I find direct flights from Sydney to Seattle?

Can I find deals for business class flights from Sydney to Seattle?

What is the cheapest month to book a flight from Sydney to Seattle?

Travelling to a place near Sydney?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Sydney to Seattle on these airlines

Choose from the following airlines for your flight from Sydney to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 18 June 2025.

Top 10 airlines flying from Sydney to Seattle

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Sydney to Seattle?

Can Cheapflights find flights from Sydney to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Sydney to Seattle become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Sydney to Seattle
Explore the most affordable flight options available from Sydney to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.