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Cheap flights from Washington to Tongatapu from $1,676

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Tongatapu departing on 2/27. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air New Zealand Logo
7:33 pm - 8:20 pmSEA-TBU
51h 47m2 stops
Air New Zealand Logo
9:35 pm - 7:16 pmTBU-SEA
42h 41m2 stops
$1,676Air New Zealand
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Fri, Feb 27 - Tue, Mar 3
Fiji Airways Logo
6:35 pm - 10:35 amSEA-TBU
20h 00m2 stops
Fiji Airways Logo
5:00 am - 6:38 pmTBU-SEA
33h 38m2 stops
$1,921Fiji Airways
Find Deal
Sat, May 2 - Tue, May 5
Fiji Airways Logo
5:59 pm - 10:35 amPDX-TBU
19h 36m2 stops
Fiji Airways Logo
11:20 am - 5:11 pmTBU-PDX
26h 51m2 stops
$2,060Fiji Airways
Find Deal
Sun, Dec 14 - Mon, Dec 22
Fiji Airways Logo
9:50 am - 1:05 amSEA-TBU
43h 15m2 stops
Fiji Airways Logo
11:20 am - 6:35 amTBU-SEA
39h 15m3 stops
$2,093Fiji Airways
Find Deal
Sat, May 2 - Tue, May 5

Fiji Airways flights from State of Washington to Tongatapu

Our best Fiji Airways deals on State of Washington to Tongatapu flight tickets
Fiji Airways
May 2
SEA6:35 pmSeattle/Tacoma Intl
20h 00m
2 stops
TBU10:35 amNuku‘alofa Fua'Amotu Intl
May 5
TBU5:00 amNuku‘alofa Fua'Amotu Intl
33h 38m
2 stops
SEA6:38 pmSeattle/Tacoma Intl
$1,921
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Fiji Airways
Dec 14
PDX5:59 pmPortland
19h 36m
2 stops
TBU10:35 amNuku‘alofa Fua'Amotu Intl
Dec 22
TBU11:20 amNuku‘alofa Fua'Amotu Intl
26h 51m
2 stops
PDX5:11 pmPortland
$2,060
Find similar
Fiji Airways
May 2
SEA9:50 amSeattle/Tacoma Intl
43h 15m
2 stops
TBU1:05 amNuku‘alofa Fua'Amotu Intl
May 5
TBU11:20 amNuku‘alofa Fua'Amotu Intl
39h 15m
3 stops
SEA6:35 amSeattle/Tacoma Intl
$2,093
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of 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, momondo users made 832,500 searches. Data last updated November 17, 2025.
Use the filters below to find and compare flights from Washington to Tongatapu that are best for you.

Fly from

Fly to

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

$1,676

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Sat 5/2

6:35 pm-10:35 am

2 stops20h 00m

Nuku‘alofa Fua'Amotu Intl

Tue 5/5

5:00 am-6:38 pm

2 stops33h 38m

$1,921

PortlandNuku‘alofa

PDX - TBU

PDXTBU

Portland

Sun 12/14

5:59 pm-10:35 am

2 stops19h 36m

Nuku‘alofa Fua'Amotu Intl

Mon 12/22

11:20 am-5:11 pm

2 stops26h 51m

$2,060

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Sat 5/2

9:50 am-1:05 am

2 stops43h 15m

Nuku‘alofa Fua'Amotu Intl

Tue 5/5

11:20 am-6:35 am

3 stops39h 15m

$2,093

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap State of Washington to Tongatapu flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Tongatapu

Direct flights

None
There are no direct flights from State of Washington to Tongatapu. There are no popular flight routes from State of Washington to Tongatapu.
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  • When did momondo last update prices for flights from Washington to Tongatapu?

    Prices for flights from Washington to Tongatapu refresh daily.

  • How old do you have to be to fly from Washington to Tongatapu?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Tongatapu.

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

    The travel and health documents required for your trip to Tongatapu can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Tongatapu. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from State of Washington to Tongatapu?

    Search flight deals from State of Washington to Tongatapu. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from State of Washington to Tongatapu with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Tongatapu?

Finding the right flight to Tongatapu from Washington 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 Tongatapu quick and easy, saving you time and money.

Can I find flights from Washington to Tongatapu with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington to Tongatapu flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington to Tongatapu?

Once you have performed a search for Washington to Tongatapu flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Washington to Tongatapu flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Popular cities in Tongatapu

Popular flights according to clicks in the last 7 days on momondo
Flights to Nuku‘alofafrom $1,041