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Tongatapu

$1,675+ Cheap flights from Seattle (SEA) 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — TBU
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
1 adult, Economy
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Find flight deals from Seattle to Tongatapu

Best flights from Seattle to Tongatapu
Discover carefully curated flight deals from Seattle to Tongatapu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 19, 2025.

This Air New Zealand deal was found by Cheapflights users on 11/18. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/277:33 pmSEA - TBU
2 stops51h 47mAir New Zealand
Tue 3/39:35 pmTBU - SEA
2 stops42h 41mAir New Zealand
Deal found 11/18$1,675

Cheap flight deals from Seattle to Tongatapu

Keep the following information in mind while searching for Seattle to Tongatapu flight deals. Data was last updated November 19, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,675
(Air New Zealand)
Provider with most accurate pricing for Seattle/Tacoma Intl-Nuku‘alofa Fua'Amotu Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Nuku‘alofa Fua'Amotu Intl flights.
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From Seattle/Tacoma Intl to Tongatapu
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 November 19, 2025.
Use the filters below to find and compare flights from Seattle to Tongatapu that are best for you.

Fly from

Seattle

Fly to

Tongatapu

Route

Depart

Return

Price

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Fri 2/27

7:33 pm-8:20 pm

2 stops51h 47m

Nuku‘alofa Fua'Amotu Intl

Tue 3/3

9:35 pm-7:16 pm

2 stops42h 41m

$1,675

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Best time to book a flight from Seattle to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu from Seattle 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 Seattle to Tongatapu
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Related info for your journey

Find useful and relevant information for your journey from Seattle to Tongatapu. 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 from for flights from Seattle to Tongatapu?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Tongatapu. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How long is the flight from Seattle to Tongatapu?

    Air New Zealand can get you from Seattle to Tongatapu in just under 51h 47m. Your travel time can differ by up to . Airlines will cover a distance of 5763 mi.

  • Can I find deals for flights from Seattle to Tongatapu that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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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Alternative routes for Seattle to Tongatapu

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