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Cheap flights from Sydney to Seattle from $549

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
3 Sep — 10 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 4 August 2026.

Mon 24/809:20
SYD
-
SEA
1 stop17h 45m
Air Canada
Tue 8/905:50
SEA
-
SYD
1 stop32h 30m
Air Canada
Deal found 2/8$1,227
Thu 6/809:20
SYD
-
SEA
1 stop17h 45m
Air Canada
Wed 19/805:50
SEA
-
SYD
1 stop32h 30m
Air Canada
Deal found 1/8$1,234
Mon 3/809:20
SYD
-
SEA
1 stop30h 22m
Air Canada
Tue 18/815:00
SEA
-
SYD
1 stop23h 20m
Air Canada
Deal found 31/7$1,239
Wed 16/909:20
SYD
-
SEA
1 stop26h 12m
Air Canada
Wed 23/915:00
SEA
-
SYD
2 stops37h 40m
Air Canada
Deal found 4/8$1,259
Mon 31/807:00
SYD
-
SEA
2 stops28h 32m
Air Canada
Tue 15/910:50
SEA
-
SYD
1 stop27h 30m
Air Canada
Deal found 2/8$1,265
Wed 23/909:20
SYD
-
SEA
1 stop26h 12m
Air Canada
Wed 30/910:50
SEA
-
SYD
1 stop27h 30m
Air Canada
Deal found 1/8$1,267
Thu 10/909:10
SYD
-
SEA
1 stop23h 47m
American Airlines
Wed 11/1110:27
SEA
-
SYD
2 stops27h 33m
American Airlines
Deal found 30/7$1,277

Find 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 4 August 2026.

Round-trip from

$1,227

One-way from

$549

Popular in

January

Cheapest in

August

Average price

$1,214
Air Canada
  • Air Canada
  • 24/8-8/9
  • 2 total stops
  • 50h 15m total
  • Sydney to Seattle
Search Deals
16/9
  • 16/9
  • 2 total stops
  • 21h 55m total
  • Sydney to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($113 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($31 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 4 August 2026.
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

Cheapest return flight

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 14/9

09:15-16:50

2 stops24h 35m

Seattle/Tacoma Intl

Mon 21/9

09:40-06:50

2 stops28h 10m

$1,311

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 23/9

09:15-22:05

1 stop29h 50m

Seattle/Tacoma Intl

Wed 30/9

09:59-06:50

1 stop27h 51m

$1,311

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 3/12

11:50-12:12

1 stop19h 22m

Seattle/Tacoma Intl

Sat 23/1

15:51-09:05

2 stops46h 14m

$1,314

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 15/9

09:30-17:52

2 stops25h 22m

Seattle/Tacoma Intl

Tue 22/9

12:44-06:55

2 stops25h 11m

$1,318

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 29/9

09:20-18:32

1 stop26h 12m

Seattle/Tacoma Intl

Sat 10/10

19:20-11:40

2 stops22h 20m

$1,369

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 28/8

10:20-12:20

1 stop19h 00m

Seattle/Tacoma Intl

Sat 12/9

23:59-07:00

2 stops38h 01m

$1,385

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 1/9

17:50-22:59

1 stop22h 09m

Seattle/Tacoma Intl

Tue 22/9

17:02-07:05

1 stop21h 03m

$1,386
Fastest return journey

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 27/8

20:45-23:53

1 stop20h 08m

Seattle/Tacoma Intl

Thu 3/9

07:20-18:50

1 stop18h 30m

$1,392
Cheapest one-way

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 9/11

15:15-09:10

1 stop36h 55m

$819

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 9/11

11:20-23:18

3 stops30h 58m

$998

Flights are sorted by cheapest return flights first.

Deals found on 30/7

Showing 1-10 of 18 resultsSorted by cheapest first
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?

Booking 76 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, August is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,214). Flying from Sydney to Seattle in January is currently the most expensive (average of $1,743). 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.

How much does it cost for a return flight from Sydney to Seattle?

Airfare is typical for this route at the moment.

Sydney to Seattle flights typically cost between $1,178 and $1,411 in August.
The cheapest return price found within the last 5 days was $1,227 on Air Canada (24 Aug–8 Sept).

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 4 August 2026.
See what other customers who have flown with Hawaiian Airlines,Qantas Airways, andUnited Airlines 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.
Hawaiian Airlines
7.8
Good
2,819 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Overall

7.8

Crew

8.5

Boarding

8.0

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
Hawaiian Airlines
7.8
Good
2,819 reviews
Hawaiian Airlines
7.8
Good
2,819 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Overall

7.8

Crew

8.5

Boarding

8.0

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
Qantas Airways
7.5
Good
1,079 reviews
Hawaiian Airlines
7.8
Good
2,819 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Overall

7.8

Crew

8.5

Boarding

8.0

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
United Airlines
7.4
Good
10,060 reviews
Hawaiian Airlines
7.8
Good
2,819 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Overall

7.8

Crew

8.5

Boarding

8.0

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
American Airlines
7.1
Good
11,854 reviews
Hawaiian Airlines
7.8
Good
2,819 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Overall

7.8

Crew

8.5

Boarding

8.0

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.
Air Canada
7.1
Good
11,427 reviews
Hawaiian Airlines
7.8
Good
2,819 reviews
Check prices

Entertainment

7.1

Comfort

7.7

Food

6.9

Overall

7.8

Crew

8.5

Boarding

8.0

Reviews

1 / 20
6.0
Good

Patrick,Feb 2026

SEA - PHX

Was not able to check in online, had to go to multiple lines at airport to get boarding pass and was not able to get a seat without going to the gate, wound up in middle in the back.

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 Delta, United Airlines, and Air Canada fly from Sydney to Seattle in about 24h 35m. The time it takes to get you to your destination can typically vary by up to 1h 37m. 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 $1,048, Hawaiian Airlines will fly you from Sydney to Seattle and back. In addition to Hawaiian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Air Canada - these airlines can fly you to your destination from $1,082 and $1,134, respectively. Users have found that Hawaiian Airlines is 31% 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 $652. Users have also found prices from $702 and $711 on United Airlines and Hawaiian 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, August is the cheapest month in which you can book a flight from Sydney to Seattle (average of $1,214). Flying from Sydney to Seattle in January is currently the most expensive (average of $1,743). 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
SeaTac
Ocean Shores
Tukwila

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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 4 August 2026.
Air Canada flights from Sydney Kingsford Smith to Seattle/Tacoma Intl
Hawaiian Airlines flights from Sydney Kingsford Smith to Seattle/Tacoma Intl

Top 7 airlines flying from Sydney to Seattle

Discover the top 7 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 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$1,048Average$1,845FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
DeltaCheapest$1,082Average$1,423FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,134Average$1,564FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$1,179Average$1,495FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,210Average$1,461FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,257Average$1,371FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
ANACheapest$1,307Average$1,574FlexibilityNo cancel feeOn-time80%
Search ANA 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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