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Cheap flights from Seattle to Tonga from $1,359

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Tonga departing on 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Tonga

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:52 pm - 1:50 am
SEA
-
TBU
37h 58m
2 stops
Multiple Airlines Logo
9:35 pm - 8:58 pm
TBU
-
SEA
43h 23m
2 stops
$1,359Multiple Airlines
Mon, Mar 9 - Mon, Mar 23
Multiple Airlines Logo
3:45 pm - 1:50 am
SEA
-
TBU
38h 05m
3 stops
Multiple Airlines Logo
11:20 am - 6:51 pm
TBU
-
SEA
27h 31m
2 stops
$1,487Multiple Airlines
Mon, Mar 9 - Mon, Mar 23
Multiple Airlines Logo
3:40 pm - 1:50 am
SEA
-
TBU
38h 10m
3 stops
Multiple Airlines Logo
9:35 pm - 9:35 am
TBU
-
SEA
32h 00m
3 stops
$1,738Multiple Airlines
Mon, Mar 9 - Mon, Mar 23
Fiji Airways Logo
7:22 pm - 1:45 am
SEA
-
TBU
34h 23m
2 stops
Fiji Airways Logo
5:40 am - 10:58 pm
TBU
-
SEA
37h 18m
2 stops
$2,179Fiji Airways
Sat, Apr 4 - Tue, Apr 7
Fiji Airways Logo
7:22 pm - 1:45 am
SEA
-
TBU
34h 23m
2 stops
Fiji Airways Logo
5:40 am - 12:59 am
TBU
-
SEA
39h 19m
3 stops
$2,403Fiji Airways
Sat, Apr 4 - Tue, Apr 7

momondo Fare Finder

 
Customize your flight search to find flights from Seattle 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, momondo users made 832,500 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from Seattle to Tonga that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Mon 3/9

3:52 pm-1:50 am

2 stops37h 58m

Nuku‘alofa Fua'Amotu Intl

Mon 3/23

9:35 pm-8:58 pm

2 stops43h 23m

$1,359

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Mon 3/9

3:45 pm-1:50 am

3 stops38h 05m

Nuku‘alofa Fua'Amotu Intl

Mon 3/23

11:20 am-6:51 pm

2 stops27h 31m

$1,487

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Mon 3/9

3:40 pm-1:50 am

3 stops38h 10m

Nuku‘alofa Fua'Amotu Intl

Mon 3/23

9:35 pm-9:35 am

3 stops32h 00m

$1,738

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Sat 4/4

7:22 pm-1:45 am

2 stops34h 23m

Nuku‘alofa Fua'Amotu Intl

Tue 4/7

5:40 am-10:58 pm

2 stops37h 18m

$2,179

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Sat 4/4

7:22 pm-1:45 am

2 stops34h 23m

Nuku‘alofa Fua'Amotu Intl

Tue 4/7

5:40 am-12:59 am

3 stops39h 19m

$2,403

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Seattle to Tonga flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Tonga

Fastest flight time

34h 23m

Direct flights

None
The fastest flight from Seattle to Tonga takes 34h 23m
There are no direct flights from Seattle to Tonga. There are no popular flight routes from Seattle to Tonga.
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  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Tonga?

    Prices for flights from Seattle/Tacoma Intl Airport to Tonga were last updated today.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Tonga?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Tonga.

  • What documentation or ID do you need to fly to Tonga?

    The required travel and health documents for your Tonga trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Tonga. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Seattle to Tonga?

    Price Alerts will notify you by email when the price for flights to Tonga from Seattle decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Seattle to Tonga with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Tonga?

Finding the right flight to Tonga from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Tonga quick and easy, saving you time and money.

Can I find flights from Seattle to Tonga with flexible booking policies on momondo?

All flight searches from Seattle to Tonga on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Tonga?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Tonga.

I’m not ready to book a flight from Seattle to Tonga right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Tonga, momondo offers a useful price alert feature which will track prices for flights to Tonga from Seattle and alert you when they change.

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Popular cities in Tonga

Popular flights according to clicks in the last 7 days on momondo
Flights to Nuku‘alofafrom $909