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Cheap flights from Australia to Seattle from $629

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Australia to Seattle
Explore the most affordable flight options available from Australia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Tue 9/1212:10BNE - SEA
2 stops40h 45mAmerican Airlines
Thu 1/105:23SEA - BNE
2 stops29h 37mAmerican Airlines
Deal found 3/12$1,048
Tue 9/1212:10BNE - SEA
2 stops40h 45mAmerican Airlines
Mon 29/1218:47SEA - BNE
2 stops41h 43mAmerican Airlines
Deal found 3/12$1,050
Tue 9/1212:10BNE - SEA
1 stop28h 15mAmerican Airlines
Sat 13/1200:31SEA - BNE
1 stop35h 59mAmerican Airlines
Deal found 3/12$1,053
Sun 7/1210:40BNE - SEA
1 stop19h 59mDelta
Mon 29/1219:50SEA - BNE
1 stop18h 30mDelta
Deal found 3/12$1,062
Mon 8/1211:40BNE - SEA
1 stop29h 35mUnited Airlines
Wed 31/1219:12SEA - BNE
1 stop18h 18mUnited Airlines
Deal found 3/12$1,063
Sun 7/1210:40BNE - SEA
2 stops26h 56mDelta
Sun 28/1209:35SEA - BNE
2 stops52h 45mDelta
Deal found 3/12$1,065
Tue 9/1212:10BNE - SEA
1 stop28h 15mAmerican Airlines
Mon 15/1206:25SEA - BNE
2 stops34h 40mAmerican Airlines
Deal found 3/12$1,087
Sun 7/1212:10BNE - SEA
1 stop23h 18mQantas Airways
Tue 16/1216:59SEA - BNE
1 stop18h 46mQantas Airways
Deal found 3/12$1,116
Mon 8/1211:40BNE - SEA
1 stop24h 52mUnited Airlines
Sun 14/1215:25SEA - BNE
2 stops26h 05mUnited Airlines
Deal found 3/12$1,397
Sun 21/1211:40BNE - SEA
1 stop31h 19mUnited Airlines
Thu 25/1212:37SEA - BNE
2 stops24h 53mUnited Airlines
Deal found 4/12$1,579
Thu 18/1213:00MEL - SEA
1 stop27h 07mUnited Airlines
Mon 29/1219:12SEA - MEL
2 stops32h 03mUnited Airlines
Deal found 3/12$1,653
Thu 11/1216:00SYD - SEA
1 stop36h 31mAir Canada
Mon 29/1220:00SEA - SYD
1 stop39h 55mAir Canada
Deal found 3/12$1,735

Find flight deals from Australia to Seattle

Keep the following information in mind while searching for Australia to Seattle flight deals. Data was last updated 5 December 2025.

Round-trip from

$985

One-way from

$629

Popular in

July

Cheapest in

August

Average price

$1,925
Air Canada
  • Air Canada
  • 31/1-15/2
  • 2 total stops
  • 59h 26m total
  • Australia to Seattle
Search Deals
Air Canada
  • Air Canada
  • 3/2
  • 1 total stop
  • 29h 21m total
  • Australia to Seattle
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($59 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Australia 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 5 December 2025.
Use the filters below to find and compare flights from Australia to Seattle that are best for you.

Fly from

Australia

Fly to

Seattle

Route

Depart

Return

Price

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sat 31/1

10:45-19:16

1 stop26h 31m

Seattle/Tacoma Intl

Sun 15/2

05:50-08:45

1 stop32h 55m

$985

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Fri 20/2

10:45-14:31

1 stop21h 46m

Seattle/Tacoma Intl

Sun 22/2

20:00-13:30

2 stops23h 30m

$1,019

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sat 31/1

11:40-18:14

2 stops24h 34m

Seattle/Tacoma Intl

Sun 15/2

14:55-07:30

2 stops22h 35m

$1,065

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Fri 20/2

11:40-22:59

2 stops29h 19m

Seattle/Tacoma Intl

Sun 22/2

09:00-07:30

2 stops28h 30m

$1,065

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Fri 16/1

11:40-21:12

1 stop27h 32m

Seattle/Tacoma Intl

Fri 23/1

15:30-07:30

2 stops46h 00m

$1,065

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sat 17/1

19:40-23:59

1 stop22h 19m

Seattle/Tacoma Intl

Fri 30/1

06:00-05:45

1 stop29h 45m

$1,066

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sat 17/1

11:40-18:28

1 stop24h 48m

Seattle/Tacoma Intl

Fri 30/1

06:03-07:30

1 stop31h 27m

$1,066

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 29/5

09:45-14:09

1 stop21h 24m

Seattle/Tacoma Intl

Tue 23/6

01:38-05:00

1 stop34h 22m

$1,192

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sat 23/5

13:35-18:50

1 stop22h 15m

Seattle/Tacoma Intl

Sun 31/5

11:40-06:45

2 stops26h 05m

$1,195

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sat 23/5

06:00-09:21

2 stops20h 21m

Seattle/Tacoma Intl

Sun 31/5

19:45-14:10

2 stops25h 25m

$1,285

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 60 results
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Best time to book a flight from Australia to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Australia 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 Australia to Seattle

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

Currently, January is the cheapest month in which you can book a flight from Australia to Seattle (average of $867). Flying from Australia to Seattle in July is currently the most expensive (average of $1,210). 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 AU to SEA?

Find hourly flight availability from Australia 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 5 December 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 23% on flights from Australia to Seattle by exploring options for tickets in the evening.

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

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

Travellers seeking maximum savings on their Australia to Seattle flight should consider departing on Tuesday afternoons 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.

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 5 December 2025.
Read through reviews of airlines operating flights from Australia to Seattle, such as Singapore Airlines, Virgin Australia, andQantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,411 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

8.0

Food

7.8

Entertainment

8.0

Boarding

8.3

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Singapore Airlines
8.1
Very Good
1,411 reviews
Singapore Airlines
8.1
Very Good
1,411 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

8.0

Food

7.8

Entertainment

8.0

Boarding

8.3

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Virgin Australia
7.6
Good
426 reviews
Singapore Airlines
8.1
Very Good
1,411 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

8.0

Food

7.8

Entertainment

8.0

Boarding

8.3

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Qantas Airways
7.5
Good
947 reviews
Singapore Airlines
8.1
Very Good
1,411 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

8.0

Food

7.8

Entertainment

8.0

Boarding

8.3

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
United Airlines
7.4
Good
9,065 reviews
Singapore Airlines
8.1
Very Good
1,411 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

8.0

Food

7.8

Entertainment

8.0

Boarding

8.3

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Air Canada
7.1
Good
10,500 reviews
Singapore Airlines
8.1
Very Good
1,411 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

8.0

Food

7.8

Entertainment

8.0

Boarding

8.3

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from Australia?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Australia to Seattle. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.

  • How long is the flight from Australia to Seattle?

    Airlines like Air Canada, United Airlines, and American Airlines fly from Australia to Seattle in about 21h 24m. The time it takes to get you to your destination can typically vary by up to 5h 07m. Australia and Seattle are separated by a distance of 13164 km. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $600. However, be on the lookout for offers from Qantas Airways and United Airlines, as they are both options that can get you from Australia to Seattle for a low price.

  • What are the most popular routes from Australia to Seattle?

    The most popular route from Australia to Seattle is Melbourne - Seattle/Tacoma Intl. You may also consider Sydney Kingsford Smith - Seattle/Tacoma Intl or Perth - Seattle/Tacoma Intl.

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

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

  • How can I find direct flights from Australia to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Australia 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 Australia to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Australia to Seattle (average of $867). Flying from Australia to Seattle in July is currently the most expensive (average of $1,210). 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 Australia to Seattle on these airlines

Choose from the following airlines for your flight from Australia to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 5 December 2025.
United Airlines flights from Australia to Seattle/Tacoma Intl

Top 10 airlines flying from Australia to Seattle

Discover the top 10 airlines that operate flights from Australia 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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air New ZealandCheapest$927Average$1,513FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
American AirlinesCheapest$984Average$1,358FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AustraliaCheapest$1,136Average$2,094FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Alaska AirlinesCheapest$1,140Average$1,756FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapest$1,140Average$1,667FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$1,148Average$2,102FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,156Average$1,521FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,190Average$1,760FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Hawaiian AirlinesCheapest$1,238Average$1,830FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Philippine AirlinesCheapest$1,248Average$1,517FlexibilityNo cancel feeOn-time60%
Search Philippine 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 Australia to Seattle?

Cheapflights makes it easy to find Australia to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights helps you find that perfect flight to Seattle from Australia by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes, we can. To see specific flights from Australia to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Australia today and book when prices fit your budget.

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