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$428+ Cheap flights from Washington to Sydney (SYD)

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Washington to Sydney

Keep the following information in mind while searching for Washington to Sydney flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$878
(United)

One-way from

$428
(American Airlines)

Popular in

December

Cheapest in

March

Average price

$1,048
Provider with most accurate pricing for Seattle/Tacoma Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sydney Kingsford Smith flights.
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From Washington to Sydney Kingsford Smith
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One-way flight from Washington to Sydney Kingsford Smith
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Highest demand for flights based on searches. 9% potential increase in price ($121 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Washington to Sydney

Cheapest flights from Washington to Sydney
Explore the most affordable flight options available from Washington to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/142:05 pmGEG - SYD
1 stop24h 10mUnited Airlines
Thu 11/2712:10 pmSYD - GEG
1 stop19h 59mUnited Airlines
Deal found 2/19$873
This Air Canada deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/207:15 pmSEA - SYD
2 stops22h 25mAir Canada
Mon 9/17:00 amSYD - SEA
2 stops19h 21mAir Canada
Deal found 2/19$878
This Air Canada deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/107:05 pmSEA - SYD
1 stop19h 30mMultiple Airlines
Sun 3/166:20 amSYD - SEA
2 stops26h 10mMultiple Airlines
Deal found 2/19$886
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:55 amSEA - SYD
1 stop26h 20mUnited Airlines
Mon 12/2212:10 pmSYD - SEA
1 stop25h 42mUnited Airlines
Deal found 2/19$897
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/153:47 pmGEG - SYD
2 stops22h 18mAmerican Airlines
Wed 8/209:10 amSYD - GEG
2 stops23h 06mAmerican Airlines
Deal found 2/20$903
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/313:47 pmPSC - SYD
2 stops22h 18mAmerican Airlines
Tue 9/309:10 amSYD - PSC
2 stops27h 06mAmerican Airlines
Deal found 2/20$903
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/315:25 amPSC - SYD
2 stops32h 35mUnited Airlines
Tue 9/3010:20 amSYD - PSC
1 stop19h 09mUnited Airlines
Deal found 2/20$918
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/107:00 amPDX - SYD
2 stops30h 00mUnited Airlines
Sun 3/1612:10 pmSYD - PDX
1 stop30h 40mUnited Airlines
Deal found 2/20$920
This Air Canada deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/87:05 pmPDX - SYD
2 stops32h 20mAir Canada
Mon 3/177:30 amSYD - PDX
2 stops25h 14mAir Canada
Deal found 2/20$927
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/159:12 amPDX - SYD
2 stops26h 53mDelta
Sat 3/2210:05 amSYD - PDX
2 stops20h 18mDelta
Deal found 2/20$928
This Justfly.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/147:40 pmPDX - SYD
2 stops28h 00mMultiple Airlines
Sun 6/227:00 amSYD - PDX
2 stops19h 35mMultiple Airlines
Deal found 2/20$946
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:15 amGEG - SYD
2 stops30h 20mDelta
Thu 10/3010:05 amSYD - GEG
2 stops26h 43mDelta
Deal found 2/19$971

Find flights from Washington to Sydney within your budget

Customize your flight search to find flights from Washington to Sydney 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 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Washington

Fly to

Sydney

Route

Depart

Return

Price

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Thu 7/31

5:15 am-6:55 am

2 stops32h 40m

Sydney Kingsford Smith

Sat 8/16

9:30 am-9:56 pm

2 stops29h 26m

$878

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 3/5

10:35 am-6:05 pm

2 stops36h 30m

Sydney Kingsford Smith

Fri 3/21

7:30 am-9:50 am

2 stops20h 20m

$885

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 3/10

7:05 pm-8:35 am

1 stop19h 30m

Sydney Kingsford Smith

Sun 3/16

6:20 am-2:30 pm

2 stops26h 10m

$886

SpokaneSydney

GEG - SYD

GEGSYD

Spokane

Fri 8/15

3:47 pm-7:05 am

2 stops22h 18m

Sydney Kingsford Smith

Wed 8/20

9:10 am-3:16 pm

2 stops23h 06m

$903

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/10

7:00 am-7:00 am

2 stops30h 00m

Sydney Kingsford Smith

Sun 3/16

12:10 pm-12:50 am

1 stop30h 40m

$920

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 3/8

7:05 pm-10:25 pm

2 stops32h 20m

Sydney Kingsford Smith

Tue 3/18

7:30 am-9:34 am

2 stops20h 04m

$927

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 3/15

9:12 am-6:05 am

2 stops26h 53m

Sydney Kingsford Smith

Sat 3/22

10:05 am-12:23 pm

2 stops20h 18m

$928

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 6/14

7:40 pm-4:40 pm

2 stops28h 00m

Sydney Kingsford Smith

Sun 6/22

7:00 am-9:35 am

2 stops19h 35m

$946

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 3/11

2:00 pm-6:05 am

1 stop22h 05m

Sydney Kingsford Smith

Tue 4/15

9:25 am-2:08 pm

1 stop21h 43m

$982

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 3/11

7:26 pm-9:00 am

1 stop19h 34m

Sydney Kingsford Smith

Tue 4/1

10:10 am-10:36 pm

1 stop30h 26m

$989

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 49 results
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Best time to book a flight from Washington to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Washington with our price prediction graph.
Estimated round-trip 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 Washington to Sydney

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

What is the cheapest month to book a flight from State of Washington to Sydney?

Currently, February is the cheapest month in which you can book a flight from State of Washington to Sydney (average of $1,051). Flying from State of Washington to Sydney in December is currently the most expensive (average of $1,643). 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 WA to SYD?

Find hourly flight availability from Washington to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

When flying from State of Washington to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated February 20, 2025.
Get a feel of what it's like to fly with Air Tahiti Nui, ANA and Korean Air from Washington to Sydney by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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
842 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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.

Korean Air
8.4
Very good
1,037 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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 Washington to Sydney. 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 Sydney from Washington?

    For a flight from Washington to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 4.6 mi from the center of the city.

  • What are the cheapest airlines to fly from State of Washington to Sydney one-way?

    $428 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $431 and $528, respectively.

  • What are the most popular routes from State of Washington to Sydney?

    While some choose either Portland - Sydney Kingsford Smith or Spokane - Sydney Kingsford Smith, Seattle/Tacoma Intl - Sydney Kingsford Smith is the most popular route from State of Washington to Sydney.

  • Can I find deals for flights from Washington to Sydney that include hotel bookings?

    Yes. In addition to deals on Washington to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Sydney?

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

  • Can I find deals for business class flights from Washington to Sydney?

    Yes. Cheapflights offers flight deals from Washington to Sydney 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 State of Washington to Sydney?

    Currently, February is the cheapest month in which you can book a flight from State of Washington to Sydney (average of $1,051). Flying from State of Washington to Sydney in December is currently the most expensive (average of $1,643). 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

Traveling to a place near Washington?

Book flights to Washington if you plan to visit one of these locations
Wollongong
Parramatta
Coogee
Manly

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Alternative routes for Washington to Sydney

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Top 8 airlines flying from Washington to Sydney

Discover the top 8 airlines that operate flights from Washington to Sydney. 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 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$759Average$1,222FlexibilityNo cancel feeOn-time69%
ANACheapest$767Average$1,196FlexibilityNo cancel feeOn-time80%
Air CanadaCheapest$825Average$1,087FlexibilityNo cancel feeOn-time67%
DeltaCheapest$848Average$1,197FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$854Average$1,357FlexibilityNo cancel feeOn-time75%
Qantas AirwaysCheapest$866Average$1,307FlexibilityNo cancel feeOn-time74%
Hawaiian AirlinesCheapest$883Average$1,143FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$917Average$1,228FlexibilityNo cancel feeOn-time71%
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