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Cheap flights from Sydney to Seattle from $701

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
26 Feb — 5 Mar1
1 adult

The best prices from Sydney Kingsford Smith to Seattle/Tacoma Intl are usually found in March or February, booked 75 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 21 February 2025.

Round-trip from

$1,384

One-way from

$701

Popular in

December

Cheapest in

March

Average price

$1,535
10/3-23/3
  • 10/3-23/3
  • 4 total stops
  • 51h 17m total
  • Sydney to Seattle
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8/5
  • 8/5
  • 1 total stop
  • 24h 24m total
  • Sydney to Seattle
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($263 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($79 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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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 21 February 2025.

Mon 11/809:20SYD - SEA
1 stop17h 01mAir Canada
Mon 18/819:15SEA - SYD
1 stop19h 05mAir Canada
Deal found 19/2$1,378
Mon 10/314:00SYD - SEA
2 stops23h 59mMultiple Airlines
Sun 23/315:12SEA - SYD
2 stops27h 18mMultiple Airlines
Deal found 20/2$1,384
Fri 21/311:10SYD - SEA
1 stop26h 00mPhilippine Airlines
Sun 13/423:30SEA - SYD
1 stop39h 30mPhilippine Airlines
Deal found 20/2$1,467
Wed 5/312:10SYD - SEA
1 stop21h 12mUnited Airlines
Sat 8/319:11SEA - SYD
2 stops40h 49mUnited Airlines
Deal found 19/2$1,521
Thu 20/311:15SYD - SEA
1 stop21h 38mQantas Airways
Sat 12/406:08SEA - SYD
1 stop31h 57mQantas Airways
Deal found 19/2$1,620
Wed 19/322:10SYD - SEA
1 stop39h 05mChina Airlines
Mon 7/401:10SEA - SYD
1 stop40h 35mChina Airlines
Deal found 20/2$1,753
Mon 7/709:30SYD - SEA
1 stop44h 15mAsiana Airlines
Sun 17/814:30SEA - SYD
1 stop24h 00mAsiana Airlines
Deal found 19/2$1,801
Mon 7/708:55SYD - SEA
2 stops49h 20mJapan Airlines
Sun 17/808:05SEA - SYD
2 stops29h 15mJapan Airlines
Deal found 19/2$1,957
Wed 25/609:10SYD - SEA
1 stop25h 01mAmerican Airlines
Fri 18/707:00SEA - SYD
2 stops31h 05mAmerican Airlines
Deal found 19/2$2,135
Thu 17/409:25SYD - SEA
2 stops31h 37mDelta
Sat 26/405:30SEA - SYD
2 stops32h 05mDelta
Deal found 20/2$2,175
Tue 23/1221:45SYD - SEA
1 stop34h 35mANA
Tue 13/115:45SEA - SYD
1 stop33h 30mANA
Deal found 20/2$2,430
Sun 29/607:55SYD - SEA
1 stop22h 45mKorean Air
Fri 18/713:20SEA - SYD
1 stop24h 00mKorean Air
Deal found 19/2$2,524

Find flights from Sydney to Seattle within your budget

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 21 February 2025.

Fly from

Sydney

Fly to

Seattle

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 11/8

09:20-09:21

1 stop17h 01m

Seattle/Tacoma Intl

Mon 18/8

19:15-07:20

1 stop19h 05m

$1,378

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 10/3

14:00-19:59

2 stops23h 59m

Seattle/Tacoma Intl

Sun 23/3

15:12-12:30

2 stops27h 18m

$1,384

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 21/3

11:10-19:10

1 stop26h 00m

Seattle/Tacoma Intl

Sun 13/4

23:30-08:00

1 stop39h 30m

$1,467

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 5/3

12:10-21:01

2 stops27h 51m

Seattle/Tacoma Intl

Sat 8/3

23:21-07:00

2 stops36h 39m

$1,521

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 20/3

11:15-14:53

1 stop21h 38m

Seattle/Tacoma Intl

Sat 12/4

06:08-07:05

1 stop31h 57m

$1,620

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 19/3

22:10-19:15

1 stop39h 05m

Seattle/Tacoma Intl

Mon 7/4

01:10-10:45

1 stop40h 35m

$1,753

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 7/7

09:30-12:45

1 stop44h 15m

Seattle/Tacoma Intl

Sun 17/8

14:30-07:30

1 stop24h 00m

$1,801

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 7/7

08:55-17:15

2 stops49h 20m

Seattle/Tacoma Intl

Sun 17/8

08:05-06:20

2 stops29h 15m

$1,957

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 25/6

09:10-17:11

1 stop25h 01m

Seattle/Tacoma Intl

Fri 18/7

07:00-07:05

2 stops31h 05m

$2,135

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 17/4

09:25-00:02

2 stops31h 37m

Seattle/Tacoma Intl

Sat 26/4

07:10-06:35

1 stop30h 25m

$2,175

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 24 results
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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.

Travel insights for flights from Sydney to Seattle

Get recent, data-driven insights about flights from Sydney to Seattle including ideal travel times, pricing trends, and more.

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 14 February 2025.

Booking 75 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 $1,487). 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 21 February 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 19% 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. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

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

Plan your trip to Seattle by taking into account the average temperature totals 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 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 21 February 2025.
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Overall

8.7

Boarding

8.7

Comfort

8.0

Entertainment

7.2

Food

7.8

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
61 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Overall

8.7

Boarding

8.7

Comfort

8.0

Entertainment

7.2

Food

7.8

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.

ANA
8.4
Very Good
836 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Overall

8.7

Boarding

8.7

Comfort

8.0

Entertainment

7.2

Food

7.8

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.

Asiana Airlines
8.3
Very Good
445 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Overall

8.7

Boarding

8.7

Comfort

8.0

Entertainment

7.2

Food

7.8

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.

China Airlines
8.2
Very Good
727 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Overall

8.7

Boarding

8.7

Comfort

8.0

Entertainment

7.2

Food

7.8

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.

Singapore Airlines
8.1
Very Good
1,299 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Overall

8.7

Boarding

8.7

Comfort

8.0

Entertainment

7.2

Food

7.8

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.

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?

    Currently priced at $1,438, Air Canada will fly you from Sydney to Seattle and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Philippine Airlines and United Airlines - these airlines can fly you to your destination from $1,467 and $1,521, respectively. Users have found that Air Canada is 18% 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 Philippine Airlines. According to our data, you can fly for as low as $1,021. Users have also found prices from $1,129 and $1,143 on Asiana Airlines and China 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 San Francisco.

  • 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 Union Square, Fisherman's Wharf, or Alcatraz. Union Square, Fisherman's Wharf and Alcatraz are located about 18.7 km, 21.0 km, and 23.1 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 $84 per day.

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

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

  • 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 $1,487). 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.

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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 21 February 2025.
Air Canada flights from Sydney Kingsford Smith to Seattle/Tacoma Intl
Hawaiian Airlines flights from Sydney Kingsford Smith to Seattle/Tacoma Intl
Korean Air 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,069Average$1,855FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,178Average$1,652FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AustraliaCheapest$1,180Average$2,010FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Asiana AirlinesCheapest$1,266Average$1,548FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Hawaiian AirlinesCheapest$1,330Average$1,826FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
ANACheapest$1,335Average$1,737FlexibilityNo cancel feeOn-time80%
Search ANA flights
China AirlinesCheapest$1,358Average$1,732FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Philippine AirlinesCheapest$1,361Average$1,512FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
American AirlinesCheapest$1,388Average$1,732FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$1,406Average$1,511FlexibilityNo cancel feeOn-time78%
Search Air New Zealand 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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