Tongatapu

$1,406+ Cheap flights from Washington to Tongatapu

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TBU
Nov 13 — Nov 201
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Cheap flight deals from Washington to Tongatapu

Keep the following information in mind while searching for Washington to Tongatapu flight deals. Data was last updated October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,434
(Orbitz)
Provider with most accurate pricing for Seattle/Tacoma Intl-Nuku‘alofa Fua'Amotu Intl flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Nuku‘alofa Fua'Amotu Intl flights.
From Washington to Tongatapu

Find flight deals from Washington to Tongatapu

Cheapest flights from Washington to Tongatapu
Explore the most affordable flight options available from Washington to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

This SmartFares deal was found by Cheapflights users on 10/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/812:30 pmSEA - TBU
2 stops24h 00mMultiple Airlines
Mon 12/2211:20 amTBU - SEA
2 stops27h 58mMultiple Airlines
Deal found 10/14$1,406
This Orbitz deal was found by Cheapflights users on 10/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/105:30 pmSEA - TBU
2 stops19h 00mMultiple Airlines
Mon 11/179:35 pmTBU - SEA
2 stops59h 04mMultiple Airlines
Deal found 10/13$1,434

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Tongatapu 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 October 14, 2025.
Use the filters below to find and compare flights from Washington to Tongatapu that are best for you.

Fly from

Washington

Fly to

Tongatapu

Route

Depart

Return

Price

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Mon 12/8

12:30 pm-9:30 am

2 stops24h 00m

Nuku‘alofa Fua'Amotu Intl

Mon 12/22

11:20 am-6:18 pm

2 stops27h 58m

$1,406

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Mon 11/10

5:30 pm-9:30 am

2 stops19h 00m

Nuku‘alofa Fua'Amotu Intl

Mon 11/17

9:35 pm-11:39 am

2 stops59h 04m

$1,434

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Best time to book a flight from Washington to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu 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 Tongatapu
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Washington to Tongatapu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find deals for flights from Washington to Tongatapu that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Tongatapu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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