Cheap flights from Sydney to Seattle from $691

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Seattle/Tacoma Intl are usually found in August or September, booked 24 days in advance, depart on a Thursday or Tuesday and return on a Monday

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 7 November 2025.

Round-trip from

$1,206

One-way from

$691

Popular in

July

Cheapest in

August

Average price

$1,657
Air Canada
  • Air Canada
  • 30/4-7/5
  • 3 total stops
  • 52h 13m total
  • Sydney to Seattle
10/2
  • 10/2
  • 3 total stops
  • 40h 33m total
  • Sydney to Seattle
Highest demand for flights based on searches. 1% potential increase in price ($46 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($60 potential savings vs. average return price).
Average for round-trip flights in November 2025

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 7 November 2025.

Thu 11/1216:00SYD - SEA
1 stop25h 46mAir Canada
Mon 29/1220:00SEA - SYD
1 stop39h 55mAir Canada
Deal found 5/11$1,260
Thu 20/1111:20SYD - SEA
1 stop25h 51mAmerican Airlines
Wed 3/1218:50SEA - SYD
1 stop19h 10mAmerican Airlines
Deal found 5/11$1,308
Thu 11/1216:00SYD - SEA
1 stop17h 31mAir Canada
Sat 27/1220:00SEA - SYD
1 stop18h 35mAir Canada
Deal found 5/11$1,337
Tue 2/1217:45SYD - SEA
1 stop18h 43mMultiple Airlines
Wed 17/1214:59SEA - SYD
1 stop23h 01mMultiple Airlines
Deal found 5/11$1,348
Wed 26/1115:00SYD - SEA
2 stops37h 31mAir Canada
Wed 3/1220:00SEA - SYD
1 stop39h 55mAir Canada
Deal found 5/11$1,374
Fri 7/1121:40SYD - SEA
1 stop17h 29mAlaska Airlines
Tue 11/1118:30SEA - SYD
1 stop30h 15mAlaska Airlines
Deal found 5/11$1,382
Thu 20/1121:40SYD - SEA
2 stops20h 56mAlaska Airlines
Fri 28/1107:00SEA - SYD
1 stop17h 45mAlaska Airlines
Deal found 5/11$1,383
Wed 3/1211:20SYD - SEA
1 stop17h 11mAir Canada
Thu 18/1205:50SEA - SYD
2 stops55h 50mAir Canada
Deal found 5/11$1,385
Sun 23/1110:40SYD - SEA
2 stops32h 31mDelta
Sun 30/1107:10SEA - SYD
1 stop30h 20mDelta
Deal found 5/11$1,388
Wed 26/1117:45SYD - SEA
1 stop19h 13mMultiple Airlines
Wed 3/1216:59SEA - SYD
1 stop19h 26mMultiple Airlines
Deal found 5/11$1,397

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 7 November 2025.
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

Wed 11/3

11:20-22:36

1 stop29h 16m

Seattle/Tacoma Intl

Sun 15/3

15:58-06:55

1 stop44h 57m

$1,297

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 20/11

11:20-18:11

1 stop25h 51m

Seattle/Tacoma Intl

Wed 3/12

18:50-09:00

1 stop19h 10m

$1,308

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 30/4

10:20-10:21

1 stop17h 01m

Seattle/Tacoma Intl

Mon 18/5

05:00-06:55

1 stop32h 55m

$1,313

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 1/5

17:45-22:49

1 stop22h 04m

Seattle/Tacoma Intl

Wed 6/5

19:08-07:05

1 stop18h 57m

$1,380

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 20/11

21:40-23:36

2 stops20h 56m

Seattle/Tacoma Intl

Fri 28/11

07:00-19:45

1 stop17h 45m

$1,383

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 23/11

10:40-00:11

2 stops32h 31m

Seattle/Tacoma Intl

Sun 30/11

07:10-08:30

1 stop30h 20m

$1,388

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 7/3

11:20-12:24

1 stop20h 04m

Seattle/Tacoma Intl

Sat 14/3

19:29-06:20

1 stop40h 51m

$1,388

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 1/5

10:20-14:18

1 stop20h 58m

Seattle/Tacoma Intl

Wed 6/5

12:46-06:55

2 stops25h 09m

$1,396

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 29/4

10:20-18:09

2 stops24h 49m

Seattle/Tacoma Intl

Thu 7/5

12:46-07:00

2 stops25h 14m

$1,396

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sun 18/1

07:05-22:06

2 stops34h 01m

$820

Flights are sorted by cheapest return flights first.

Deals found on 6/11

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 31 October 2025.

Booking 24 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 $1,093). Flying from Sydney to Seattle in April is currently the most expensive (average of $1,356). 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?

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 7 November 2025.

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 18% on airfare.

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.

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. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 7 November 2025.
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.

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

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.

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

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.

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

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.

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

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.

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

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.

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

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 American Airlines and United Airlines fly from Sydney to Seattle in about 17h 01m. The time it takes to get you to your destination can typically vary by up to 12h 15m. 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 $1,156, Virgin Australia will fly you from Sydney to Seattle and back. In addition to Virgin Australia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Delta - these airlines can fly you to your destination from $1,160 and $1,168, respectively. Users have found that Virgin Australia is 31% cheaper than the other options available to this destination.

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

  • What are some popular things to do or see while on a stopover in San Francisco?

    If you're on a stopover in San Francisco and looking for things to do, consider visiting Fisherman's Wharf, Union Square, or Ghirardelli Square. Fisherman's Wharf, Union Square and Ghirardelli Square are located about 21.0 km, 18.7 km, and 20.8 km, respectively from San Francisco if you are interested in checking them out. Those looking to explore during their stopover in San Francisco can hire a car from San Francisco for about $62 per day.

  • 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?

    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 $1,093). Flying from Sydney to Seattle in April is currently the most expensive (average of $1,356). 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 7 November 2025.

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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AustraliaCheapest$1,156Average$2,262FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Alaska AirlinesCheapest$1,160Average$1,786FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapest$1,168Average$2,139FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,187Average$1,584FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,222Average$1,608FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Hawaiian AirlinesCheapest$1,249Average$1,864FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Qantas AirwaysCheapest$1,275Average$1,516FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Philippine AirlinesCheapest$1,336Average$1,529FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Singapore AirlinesCheapest$1,461Average$1,501FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Asiana AirlinesCheapest$1,492Average$1,643FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights

Fly with Cheapflights

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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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