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South Pacific

$356+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
Apr 18 — Apr 251
Sat 4/18
Sat 4/25
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 March 19, 2026.

This oojo deal was found by Cheapflights users on 3/14. 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.
Wed 9/2311:10 pm
SEA
-
SYD
1 stop39h 50m
Philippine Airlines
Wed 9/3010:15 am
SYD
-
SEA
1 stop26h 50m
Philippine Airlines
Deal found 3/14$717
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:58 pm
SEA
-
PPT
1 stop13h 42m
Multiple Airlines
Sat 5/97:00 am
PPT
-
SEA
1 stop12h 18m
Multiple Airlines
Deal found 3/17$728
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:53 pm
SEA
-
PPT
1 stop16h 47m
Multiple Airlines
Mon 5/117:00 am
PPT
-
SEA
1 stop23h 17m
Multiple Airlines
Deal found 3/17$738
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:10 pm
SEA
-
PPT
1 stop35h 30m
Multiple Airlines
Sat 5/27:00 am
PPT
-
SEA
1 stop12h 18m
Multiple Airlines
Deal found 3/15$745
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:06 am
SEA
-
NAN
1 stop23h 54m
Multiple Airlines
Tue 5/129:40 pm
NAN
-
SEA
1 stop15h 55m
Multiple Airlines
Deal found 3/17$748
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:05 pm
SEA
-
PPT
1 stop35h 35m
Multiple Airlines
Mon 5/47:00 am
PPT
-
SEA
1 stop25h 22m
Multiple Airlines
Deal found 3/17$749
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:10 am
SEA
-
PPT
1 stop24h 30m
Multiple Airlines
Mon 5/117:00 am
PPT
-
SEA
1 stop23h 17m
Multiple Airlines
Deal found 3/17$750
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:48 pm
SEA
-
PPT
1 stop15h 52m
Multiple Airlines
Mon 5/117:00 am
PPT
-
SEA
1 stop22h 29m
Multiple Airlines
Deal found 3/18$753
This Trip.com deal was found by Cheapflights users on 3/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:57 am
SEA
-
NAN
1 stop24h 03m
Multiple Airlines
Tue 4/219:40 pm
NAN
-
SEA
2 stops30h 47m
Multiple Airlines
Deal found 3/16$754
This American Airlines deal was found by Cheapflights users on 3/15. 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.
Mon 4/206:19 pm
SEA
-
PPT
2 stops30h 11m
American Airlines
Sun 5/1011:45 pm
PPT
-
SEA
1 stop20h 13m
American Airlines
Deal found 3/15$758
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:24 pm
SEA
-
PPT
1 stop34h 16m
Multiple Airlines
Thu 5/147:00 am
PPT
-
SEA
1 stop22h 17m
Multiple Airlines
Deal found 3/17$760
This Flighttix deal was found by Cheapflights users on 3/15. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:30 am
SEA
-
PPT
2 stops18h 00m
British Airways
Fri 5/811:45 pm
PPT
-
SEA
1 stop20h 13m
British Airways
Deal found 3/15$762

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 March 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$728
(Kiwi.com)

One-way from

$349
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,014
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. 15% potential increase in price ($189 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 19, 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

PortlandAuckland

PDX - AKL

PDXAKL

Portland

Thu 4/23

5:30 am-6:50 am

2 stops30h 20m

Auckland Intl

Thu 4/30

1:00 pm-12:08 pm

1 stop18h 08m

$964

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Sat 8/29

8:00 am-9:30 pm

1 stop16h 30m

Papeete Faaa

Tue 9/8

11:25 pm-7:40 pm

1 stop17h 15m

$989

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 6/4

10:10 am-7:20 am

1 stop28h 10m

Sydney Kingsford Smith

Thu 6/18

9:20 am-7:06 pm

1 stop26h 46m

$997

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 5/8

1:09 pm-6:45 am

1 stop24h 36m

Melbourne

Thu 5/21

9:45 am-2:57 pm

1 stop22h 12m

$1,009

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Sun 5/3

7:20 pm-7:05 am

1 stop18h 45m

Brisbane

Sun 5/10

10:00 am-6:30 pm

1 stop25h 30m

$1,019

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 5/1

4:35 pm-7:50 am

1 stop22h 15m

Melbourne

Fri 5/8

10:00 am-11:44 pm

2 stops30h 44m

$1,032

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 4/13

7:05 pm-11:35 am

2 stops23h 30m

Melbourne

Tue 4/28

9:45 am-1:26 pm

1 stop20h 41m

$1,055

SeattleSuva

SEA - SUV

SEASUV

Seattle/Tacoma Intl

Wed 4/29

10:57 pm-7:40 am

2 stops37h 43m

Suva Nausori

Wed 5/6

7:30 pm-6:40 pm

2 stops18h 10m

$1,060

SeattlePapeete

SEA - PPT

SEAPPT

Seattle/Tacoma Intl

Sat 4/25

5:30 am-9:50 pm

1 stop19h 20m

Papeete Faaa

Sun 5/3

11:45 pm-10:58 pm

1 stop20h 13m

$1,061

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 5/8

1:37 pm-8:15 am

1 stop25h 38m

Melbourne

Thu 5/21

10:55 am-12:08 pm

1 stop18h 13m

$1,072

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

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, August is the cheapest month in which you can book a flight from State of Washington to South Pacific (average of $157). Flying from State of Washington to South Pacific in October is currently the most expensive (average of $727). 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.

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?

    American Airlines, Air Tahiti Nui, and Air Canada can get you from State of Washington to South Pacific in just under 17h 50m. Your travel time can differ by up to 10h 20m. 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 ANA, with whom users have recently found tickets for as low as $253. However, be on the lookout for offers from Air Canada and Qantas Airways, 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, August is the cheapest month in which you can book a flight from State of Washington to South Pacific (average of $157). Flying from State of Washington to South Pacific in October is currently the most expensive (average of $727). 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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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 March 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$97Average$1,292FlexibilityNo cancel feeOn-time75%
DeltaCheapest$157Average$1,241FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$385Average$1,278FlexibilityNo cancel feeOn-time67%
ANACheapest$583Average$655FlexibilityNo cancel feeOn-time80%
Qantas AirwaysCheapest$621Average$1,234FlexibilityNo cancel feeOn-time74%
Air Tahiti NuiCheapest$719Average$793FlexibilityNo cancel feeOn-time73%
American AirlinesCheapest$759Average$890FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$788Average$1,262FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$812Average$1,216FlexibilityNo cancel feeOn-time85%
Air New ZealandCheapest$886Average$1,316FlexibilityNo cancel feeOn-time78%

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