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$1,921+ Cheap flights from Washington to Tonga

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TBU
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheap flight deals from Washington to Tonga

Keep the following information in mind while searching for Washington to Tonga flight deals. Data was last updated November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,921
(Fiji Airways)
Provider with most accurate pricing for Seattle/Tacoma Intl-Nuku‘alofa Fua'Amotu Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Nuku‘alofa Fua'Amotu Intl flights.
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From Washington to Tonga
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Find flight deals from Washington to Tonga

Best flights from Washington to Tonga
Discover carefully curated flight deals from Washington to Tonga that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2025.

This Fiji Airways deal was found by Cheapflights users on 11/1. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:50 amSEA - TBU
2 stops28h 45mFiji Airways
Tue 5/55:00 amTBU - SEA
2 stops33h 38mFiji Airways
Deal found 11/1$1,921

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Tonga 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 November 4, 2025.
Use the filters below to find and compare flights from Washington to Tonga that are best for you.

Fly from

Washington

Fly to

Tonga

Route

Depart

Return

Price

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Sat 5/2

9:50 am-10:35 am

2 stops28h 45m

Nuku‘alofa Fua'Amotu Intl

Tue 5/5

5:00 am-6:38 pm

2 stops33h 38m

$1,921

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Best time to book a flight from Washington to Tonga

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

    Airlines like Fiji Airways fly from State of Washington to Tonga in about 28h 45m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 5763 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Tonga 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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