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Cheap flights from Sydney to Seattle from $642

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
8 Feb — 15 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 January 2026.

Round-trip from

$1,371

One-way from

$642

Popular in

July

Cheapest in

August

Average price

$1,918
Hawaiian Airlines
  • Hawaiian Airlines
  • 5/2-20/2
  • 2 total stops
  • 36h 07m total
  • Sydney to Seattle
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6/2
  • 6/2
  • 2 total stops
  • 26h 58m total
  • Sydney to Seattle
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($81 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($61 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Find flight deals from Sydney to Seattle

Enter your travel dates to find the best prices.

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 9 January 2026.

Thu 5/221:40SYD - SEA
1 stop18h 22mHawaiian Airlines
Fri 20/207:00SEA - SYD
1 stop17h 45mHawaiian Airlines
Deal found 8/1$1,371
Thu 5/221:40SYD - SEA
2 stops28h 04mMultiple Airlines
Fri 20/207:00SEA - SYD
1 stop17h 45mMultiple Airlines
Deal found 8/1$1,374
Tue 3/221:40SYD - SEA
2 stops28h 04mMultiple Airlines
Wed 18/218:30SEA - SYD
2 stops30h 15mMultiple Airlines
Deal found 6/1$1,391
Sun 1/221:40SYD - SEA
1 stop26h 44mHawaiian Airlines
Sun 8/209:55SEA - SYD
1 stop38h 50mHawaiian Airlines
Deal found 7/1$1,397
Sun 6/913:15SYD - SEA
2 stops21h 42mMultiple Airlines
Sat 19/917:55SEA - SYD
2 stops24h 50mMultiple Airlines
Deal found 7/1$1,407
Mon 26/1014:00SYD - SEA
2 stops21h 57mMultiple Airlines
Sat 31/1017:55SEA - SYD
2 stops24h 40mMultiple Airlines
Deal found 7/1$1,409
Sun 8/221:40SYD - SEA
1 stop26h 44mHawaiian Airlines
Tue 24/217:50SEA - SYD
1 stop30h 55mHawaiian Airlines
Deal found 8/1$1,413
Sun 1/206:00SYD - SEA
2 stops33h 10mMultiple Airlines
Sun 8/212:01SEA - SYD
2 stops39h 04mMultiple Airlines
Deal found 7/1$1,415
Fri 7/807:50SYD - SEA
2 stops32h 31mAir New Zealand
Fri 28/817:33SEA - SYD
2 stops22h 12mAir New Zealand
Deal found 7/1$1,433
Fri 13/321:40SYD - SEA
1 stop18h 02mAlaska Airlines
Tue 17/317:50SEA - SYD
1 stop31h 55mAlaska Airlines
Deal found 5/1$1,440
Sun 8/221:40SYD - SEA
2 stops27h 31mMultiple Airlines
Tue 24/217:50SEA - SYD
1 stop30h 55mMultiple Airlines
Deal found 6/1$1,462

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 9 January 2026.
Use the filters below to find and compare flights from Sydney to Seattle that are best for you.

Fly from

Sydney

Fly to

Seattle

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 5/2

21:40-06:44

2 stops28h 04m

Seattle/Tacoma Intl

Fri 20/2

07:00-19:45

1 stop17h 45m

$1,374

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 13/3

21:40-21:42

1 stop18h 02m

Seattle/Tacoma Intl

Tue 17/3

17:50-19:45

1 stop31h 55m

$1,451

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 31/5

09:30-14:55

1 stop22h 25m

Seattle/Tacoma Intl

Fri 26/6

00:55-07:30

1 stop37h 35m

$1,485

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 13/3

21:40-23:40

1 stop20h 00m

Seattle/Tacoma Intl

Tue 17/3

17:50-19:45

1 stop31h 55m

$1,500

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 18/3

11:35-19:40

1 stop26h 05m

Seattle/Tacoma Intl

Fri 17/4

23:10-08:00

1 stop39h 50m

$1,519

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 12/6

09:30-14:55

1 stop22h 25m

Seattle/Tacoma Intl

Sun 21/6

00:55-07:30

1 stop37h 35m

$1,524

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 15/6

09:30-14:55

1 stop22h 25m

Seattle/Tacoma Intl

Mon 22/6

00:55-07:30

1 stop37h 35m

$1,528

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 15/6

06:30-09:15

2 stops19h 45m

Seattle/Tacoma Intl

Tue 23/6

15:00-07:20

1 stop23h 20m

$1,564

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 3/6

09:20-14:20

1 stop22h 00m

Seattle/Tacoma Intl

Sun 28/6

09:55-07:20

1 stop28h 25m

$1,579

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 22/2

06:20-11:19

2 stops23h 59m

Seattle/Tacoma Intl

Sun 1/3

21:30-09:50

1 stop41h 20m

$1,586

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 20 results
1
2

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?

Use this chart to determine the optimal time to book a return flight from Sydney to Seattle. Price data was last updated on 2 January 2026.

Booking 39 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, June is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,048). Flying from Sydney to Seattle in April is currently the most expensive (average of $1,298). 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.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 9 January 2026.
See what other customers who have flown with Delta, Hawaiian Airlines, andQantas Airways from Sydney to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,032 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,032 reviews
Delta
7.9
Good
8,032 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Hawaiian Airlines
7.8
Good
2,824 reviews
Delta
7.9
Good
8,032 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Qantas Airways
7.5
Good
968 reviews
Delta
7.9
Good
8,032 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,144 reviews
Delta
7.9
Good
8,032 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,603 reviews
Delta
7.9
Good
8,032 reviews
Check prices

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Sydney to Seattle?

    Airlines like Alaska Airlines, Asiana Airlines, and Philippine Airlines fly from Sydney to Seattle in about 18h 02m. The time it takes to get you to your destination can typically vary by up to 8h 03m. Airlines will cover a distance of 12463 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at $724, Delta will fly you from Sydney to Seattle and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Australia and Alaska Airlines - these airlines can fly you to your destination from $1,121 and $1,124, respectively. Users have found that Delta is 54% 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 Air Canada. According to our data, you can fly for as low as $592. Users have also found prices from $640 and $756 on United Airlines and Qantas Airways, 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, June is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,048). Flying from Sydney to Seattle in April is currently the most expensive (average of $1,298). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Ocean Shores

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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 9 January 2026.
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

Discover the top 10 airlines that operate flights from Sydney to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 9 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AustraliaCheapest$1,121Average$2,148FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Alaska AirlinesCheapest$1,124Average$1,732FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapest$1,132Average$2,074FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,142Average$1,517FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,185Average$1,546FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Hawaiian AirlinesCheapest$1,222Average$1,821FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Qantas AirwaysCheapest$1,236Average$1,470FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Philippine AirlinesCheapest$1,275Average$1,526FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
American AirlinesCheapest$1,326Average$1,346FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Singapore AirlinesCheapest$1,417Average$1,454FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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?

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.

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