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South Pacific

$478+ Cheap flights from Washington to South Pacific

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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Cheap flight deals from Washington to South Pacific

Cheapest flights from Washington to South Pacific
Explore the most affordable flight options available from Washington to South Pacific. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 21, 2026.

This United Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 7/235:15 am
SEA
-
PPT
1 stop16h 40m
United Airlines
Wed 8/59:10 pm
PPT
-
SEA
1 stop18h 37m
United Airlines
Deal found 7/20$744
This United Airlines deal was found by Cheapflights users on 7/19. 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 7/207:00 am
SEA
-
PPT
1 stop14h 55m
United Airlines
Sun 8/29:10 pm
PPT
-
SEA
1 stop14h 20m
United Airlines
Deal found 7/19$745
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Tue 8/255:00 am
SEA
-
PPT
2 stops16h 55m
United Airlines
Sat 9/59:10 pm
PPT
-
SEA
2 stops17h 34m
United Airlines
Deal found 7/20$746
This United Airlines deal was found by Cheapflights users on 7/16. 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 7/171:30 pm
SEA
-
PPT
1 stop32h 25m
United Airlines
Thu 7/309:10 pm
PPT
-
SEA
1 stop14h 20m
United Airlines
Deal found 7/16$749
This United Airlines deal was found by Cheapflights users on 7/20. 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 9/139:00 am
SEA
-
PPT
1 stop12h 55m
United Airlines
Tue 9/159:10 pm
PPT
-
SEA
1 stop20h 33m
United Airlines
Deal found 7/20$754
This United Airlines deal was found by Cheapflights users on 7/18. 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.
Wed 12/27:32 pm
SEA
-
PPT
1 stop26h 28m
United Airlines
Thu 12/1710:10 pm
PPT
-
SEA
1 stop16h 20m
United Airlines
Deal found 7/18$761
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Sat 8/151:16 pm
SEA
-
PPT
1 stop32h 39m
United Airlines
Sat 8/229:10 pm
PPT
-
SEA
1 stop33h 49m
United Airlines
Deal found 7/17$769
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Wed 12/165:07 am
SEA
-
PPT
2 stops40h 53m
United Airlines
Tue 12/2910:10 pm
PPT
-
SEA
1 stop14h 19m
United Airlines
Deal found 7/17$774
This United Airlines deal was found by Cheapflights users on 7/19. 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 9/142:34 pm
SEA
-
PPT
2 stops31h 21m
United Airlines
Sat 9/269:10 pm
PPT
-
SEA
1 stop23h 16m
United Airlines
Deal found 7/19$781
This oojo deal was found by Cheapflights users on 7/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:55 pm
SEA
-
AKL
2 stops27h 05m
Qantas Airways
Mon 11/166:40 am
AKL
-
SEA
2 stops25h 12m
Qantas Airways
Deal found 7/20$799
This oojo deal was found by Cheapflights users on 7/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 pm
PDX
-
AKL
2 stops26h 55m
Multiple Airlines
Mon 11/97:05 pm
AKL
-
PDX
2 stops25h 05m
Multiple Airlines
Deal found 7/21$808
This FlightHub deal was found by Cheapflights users on 7/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:37 pm
PDX
-
AKL
2 stops26h 28m
Qantas Airways
Wed 8/191:25 pm
AKL
-
PDX
2 stops29h 34m
Qantas Airways
Deal found 7/20$810

Find flight deals from Washington to South Pacific

Keep the following information in mind while searching for Washington to South Pacific flight deals. Data was last updated July 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$746
(United Airlines)

One-way from

$490
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$1,301
Provider with most accurate pricing for Seattle/Tacoma Intl-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sydney Kingsford Smith flights.
Search Deals
From Washington to South Pacific
Search Deals
One-way flight from Washington to South Pacific
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($237 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to South Pacific 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 July 21, 2026.
Use the filters below to find and compare flights from Washington to South Pacific that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Sat 8/29

11:00 pm-6:55 pm

2 stops22h 55m

Papeete Faaa

Mon 8/31

9:10 pm-2:24 pm

1 stop14h 14m

$754

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Thu 10/1

9:05 am-6:55 pm

1 stop12h 50m

Papeete Faaa

Tue 10/6

9:10 pm-9:01 pm

1 stop20h 51m

$754
Quickest round-trip

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Sun 10/4

7:11 am-6:55 pm

1 stop14h 44m

Papeete Faaa

Sun 10/11

9:10 pm-12:23 pm

1 stop12h 13m

$754

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Mon 8/17

7:11 am-6:55 pm

1 stop14h 44m

Papeete Faaa

Wed 8/26

9:10 pm-8:43 pm

1 stop20h 33m

$754

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Thu 12/3

5:00 am-8:00 pm

1 stop17h 00m

Papeete Faaa

Mon 12/14

10:10 pm-2:18 pm

1 stop14h 08m

$754

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Tue 8/18

9:05 am-6:55 pm

1 stop12h 50m

Papeete Faaa

Tue 8/25

9:10 pm-4:14 pm

1 stop16h 04m

$754

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Sat 9/12

9:00 am-6:55 pm

1 stop12h 55m

Papeete Faaa

Tue 9/15

9:10 pm-8:43 pm

1 stop20h 33m

$754

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Thu 10/1

3:55 pm-6:55 pm

2 stops30h 00m

Papeete Faaa

Sun 10/11

9:10 pm-10:59 pm

2 stops22h 49m

$758

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 8/7

5:50 pm-7:50 am

1 stop21h 00m

Melbourne

Wed 8/19

10:00 am-2:50 pm

1 stop21h 50m

$989

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 8/3

9:40 am-7:50 am

2 stops29h 10m

Melbourne

Sun 8/16

10:00 am-12:27 pm

1 stop19h 27m

$994

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Washington to South Pacific

Have a flexible travel schedule? Discover the best time to fly to South Pacific 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.

Cheapflights Insights

Everything you need to know about your flight from Washington to South Pacific

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

Currently, March is the cheapest month in which you can book a flight from State of Washington to South Pacific (average of $975). Flying from State of Washington to South Pacific in December is currently the most expensive (average of $1,503). 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 far ahead should I book a flight from State of Washington to South Pacific?

The best time to book flights from State of Washington to South Pacific is 15 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

Find useful and relevant information for your journey from Washington to South Pacific. 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 State of Washington to South Pacific?

    United Airlines, Qantas Airways, and American Airlines can get you from State of Washington to South Pacific in just under 14h 44m. Your travel time can differ by up to 12h 21m. The distance from State of Washington to South Pacific is about 4796 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $366. However, be on the lookout for offers from Qantas Airways and Philippine Airlines, as they are both options that can get you from State of Washington to South Pacific for a low price.

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

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

  • How can I find direct flights from Washington to South Pacific?

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

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

    Yes. Cheapflights offers flight deals from Washington to South Pacific 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 South Pacific?

    Currently, March is the cheapest month in which you can book a flight from State of Washington to South Pacific (average of $975). Flying from State of Washington to South Pacific in December is currently the most expensive (average of $1,503). 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

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Alternative routes for Washington to South Pacific

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington to South Pacific

Discover the top 10 airlines that operate flights from Washington to South Pacific. 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 July 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$97Average$1,425FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$385Average$1,042FlexibilityNo cancel feeOn-time67%
ANACheapest$583Average$627FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$598Average$1,222FlexibilityNo cancel feeOn-time69%
Fiji AirwaysCheapest$633Average$1,255FlexibilityNo cancel feeOn-time74%
Air Tahiti NuiCheapest$731Average$1,076FlexibilityNo cancel feeOn-time73%
American AirlinesCheapest$759Average$951FlexibilityNo cancel feeOn-time71%
DeltaCheapest$787Average$1,288FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$803Average$1,202FlexibilityNo cancel feeOn-time74%
Hawaiian AirlinesCheapest$813Average$899FlexibilityNo cancel feeOn-time85%

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