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Cheap flights from Washington to Tongatapu from $1,303

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 10/20. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Washington to Tongatapu

Cheap round-trip flights

Enter your travel dates to find the best prices.
Fiji Airways Logo
4:37 pm - 1:45 amSEA  Seattle/Tacoma Intl-TBU Nuku‘alofa Fua'Amotu Intl
37h 08m2 stops Los Angeles Nadi
Fiji Airways Logo
5:40 am - 6:33 pmTBU  Nuku‘alofa Fua'Amotu Intl-SEA Seattle/Tacoma Intl
32h 53m2 stops Nadi San Francisco
$1,303Fiji Airways
Tue, Oct 20 - Sat, Oct 31
Multiple Airlines Logo
3:44 pm - 10:35 amSEA  Seattle/Tacoma Intl-TBU Nuku‘alofa Fua'Amotu Intl
22h 51m2 stops San Francisco Nadi
Multiple Airlines Logo
5:40 am - 11:03 pmTBU  Nuku‘alofa Fua'Amotu Intl-SEA Seattle/Tacoma Intl
37h 23m2 stops Nadi San Francisco
$1,315Multiple Airlines
Sun, Oct 25 - Fri, Oct 30
Fiji Airways Logo
2:30 pm - 1:05 amPDX  Portland-TBU Nuku‘alofa Fua'Amotu Intl
37h 35m2 stops San Francisco Nadi
Fiji Airways Logo
11:20 am - 5:52 pmTBU  Nuku‘alofa Fua'Amotu Intl-PDX Portland
27h 32m2 stops Nadi Los Angeles
$1,377Fiji Airways
Sun, Jan 31 - Thu, Feb 4
Multiple Airlines Logo
2:10 pm - 1:50 amSEA  Seattle/Tacoma Intl-TBU Nuku‘alofa Fua'Amotu Intl
38h 40m2 stops Los Angeles Nadi
Multiple Airlines Logo
12:10 pm - 4:27 pmTBU  Nuku‘alofa Fua'Amotu Intl-SEA Seattle/Tacoma Intl
25h 17m2 stops Auckland Intl San Francisco
$1,486Multiple Airlines
Sat, Nov 7 - Sat, Nov 14
Multiple Airlines Logo
4:20 pm - 10:35 amSEA  Seattle/Tacoma Intl-TBU Nuku‘alofa Fua'Amotu Intl
21h 15m2 stops Los Angeles Nadi
Multiple Airlines Logo
12:10 pm - 4:27 pmTBU  Nuku‘alofa Fua'Amotu Intl-SEA Seattle/Tacoma Intl
25h 17m2 stops Auckland Intl San Francisco
$1,498Multiple Airlines
Sat, Nov 7 - Sat, Nov 14
Multiple Airlines Logo
5:59 pm - 10:35 amSEA  Seattle/Tacoma Intl-TBU Nuku‘alofa Fua'Amotu Intl
20h 36m2 stops San Francisco Nadi
Multiple Airlines Logo
5:40 am - 10:52 pmTBU  Nuku‘alofa Fua'Amotu Intl-SEA Seattle/Tacoma Intl
37h 12m3 stops Nadi Apia Faleolo Honolulu
$1,592Multiple Airlines
Sun, Oct 25 - Fri, Oct 30
Fiji Airways Logo
5:55 pm - 1:05 amPDX  Portland-TBU Nuku‘alofa Fua'Amotu Intl
34h 10m2 stops San Francisco Nadi
Fiji Airways Logo
11:20 am - 4:45 pmTBU  Nuku‘alofa Fua'Amotu Intl-PDX Portland
50h 25m3 stops Nadi Apia Faleolo Honolulu
$1,594Fiji Airways
Sun, Jan 31 - Thu, Feb 4
Fiji Airways Logo
2:47 pm - 1:05 amPDX  Portland-TBU Nuku‘alofa Fua'Amotu Intl
37h 18m2 stops San Francisco Nadi
Fiji Airways Logo
6:50 pm - 4:33 pmTBU  Nuku‘alofa Fua'Amotu Intl-PDX Portland
42h 43m3 stops Nadi Apia Faleolo Honolulu
$1,619Fiji Airways
Sun, Nov 1 - Thu, Nov 5
Multiple Airlines Logo
2:53 pm - 5:10 pmPDX  Portland-TBU Nuku‘alofa Fua'Amotu Intl
30h 17m2 stops Los Angeles Nadi
Multiple Airlines Logo
11:55 am - 8:59 pmTBU  Nuku‘alofa Fua'Amotu Intl-PDX Portland
29h 04m2 stops Auckland Intl San Francisco
$1,651Multiple Airlines
Tue, Sep 1 - Mon, Sep 7
Fiji Airways Logo
2:47 pm - 1:05 amPDX  Portland-TBU Nuku‘alofa Fua'Amotu Intl
37h 18m2 stops San Francisco Nadi
Fiji Airways Logo
6:50 pm - 4:33 pmTBU  Nuku‘alofa Fua'Amotu Intl-PDX Portland
42h 43m3 stops Nadi Apia Faleolo Honolulu
$1,769Fiji Airways
Sun, Nov 1 - Thu, Nov 5

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Fiji Airways flights from State of Washington to Tongatapu

Our best Fiji Airways deals on State of Washington to Tongatapu flight tickets
Fiji Airways
Oct 20
SEA4:37 pmSeattle/Tacoma Intl
37h 08m
2 stops
TBU1:45 amNuku‘alofa Fua'Amotu Intl
Oct 31
TBU5:40 amNuku‘alofa Fua'Amotu Intl
32h 53m
2 stops
SEA6:33 pmSeattle/Tacoma Intl
$1,303
Fiji Airways
Jan 31
PDX2:30 pmPortland
23h 05m
2 stops
TBU10:35 amNuku‘alofa Fua'Amotu Intl
Feb 4
TBU5:00 amNuku‘alofa Fua'Amotu Intl
33h 52m
2 stops
PDX5:52 pmPortland
$1,377
Fiji Airways
Jan 31
PDX5:55 pmPortland
34h 10m
2 stops
TBU1:05 amNuku‘alofa Fua'Amotu Intl
Feb 4
TBU11:20 amNuku‘alofa Fua'Amotu Intl
50h 25m
3 stops
PDX4:45 pmPortland
$1,594

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 August 10, 2026.
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

Cheapest round-trip

SeattleNuku‘alofa

SEA Seattle/Tacoma Intl - TBU Nuku‘alofa Fua'Amotu Intl

SEATBU

Seattle/Tacoma Intl

Tue 10/20

4:37 pm-1:45 am

2 stops37h 08m

Nuku‘alofa Fua'Amotu Intl

Sat 10/31

5:40 am-6:33 pm

2 stops32h 53m

$1,303

SeattleNuku‘alofa

SEA Seattle/Tacoma Intl - TBU Nuku‘alofa Fua'Amotu Intl

SEATBU

Seattle/Tacoma Intl

Sun 10/25

3:44 pm-10:35 am

2 stops22h 51m

Nuku‘alofa Fua'Amotu Intl

Fri 10/30

5:40 am-11:03 pm

2 stops37h 23m

$1,315

PortlandNuku‘alofa

PDX Portland - TBU Nuku‘alofa Fua'Amotu Intl

PDXTBU

Portland

Sun 1/31

2:30 pm-1:05 am

2 stops37h 35m

Nuku‘alofa Fua'Amotu Intl

Thu 2/4

11:20 am-5:52 pm

2 stops27h 32m

$1,377

SeattleNuku‘alofa

SEA Seattle/Tacoma Intl - TBU Nuku‘alofa Fua'Amotu Intl

SEATBU

Seattle/Tacoma Intl

Sat 11/7

2:10 pm-1:50 am

2 stops38h 40m

Nuku‘alofa Fua'Amotu Intl

Sat 11/14

12:10 pm-4:27 pm

2 stops25h 17m

$1,486
Quickest round-trip

SeattleNuku‘alofa

SEA Seattle/Tacoma Intl - TBU Nuku‘alofa Fua'Amotu Intl

SEATBU

Seattle/Tacoma Intl

Sat 11/7

4:20 pm-10:35 am

2 stops21h 15m

Nuku‘alofa Fua'Amotu Intl

Sat 11/14

12:10 pm-4:27 pm

2 stops25h 17m

$1,498

SeattleNuku‘alofa

SEA Seattle/Tacoma Intl - TBU Nuku‘alofa Fua'Amotu Intl

SEATBU

Seattle/Tacoma Intl

Sun 10/25

5:59 pm-10:35 am

2 stops20h 36m

Nuku‘alofa Fua'Amotu Intl

Fri 10/30

5:40 am-10:52 pm

3 stops37h 12m

$1,592

PortlandNuku‘alofa

PDX Portland - TBU Nuku‘alofa Fua'Amotu Intl

PDXTBU

Portland

Sun 1/31

5:55 pm-1:05 am

2 stops34h 10m

Nuku‘alofa Fua'Amotu Intl

Thu 2/4

11:20 am-4:45 pm

3 stops50h 25m

$1,594

PortlandNuku‘alofa

PDX Portland - TBU Nuku‘alofa Fua'Amotu Intl

PDXTBU

Portland

Sun 11/1

2:47 pm-1:05 am

2 stops37h 18m

Nuku‘alofa Fua'Amotu Intl

Thu 11/5

6:50 pm-4:33 pm

3 stops42h 43m

$1,619

PortlandNuku‘alofa

PDX Portland - TBU Nuku‘alofa Fua'Amotu Intl

PDXTBU

Portland

Tue 9/1

2:53 pm-5:10 pm

2 stops30h 17m

Nuku‘alofa Fua'Amotu Intl

Mon 9/7

11:55 am-8:59 pm

2 stops29h 04m

$1,651

PortlandNuku‘alofa

PDX Portland - TBU Nuku‘alofa Fua'Amotu Intl

PDXTBU

Portland

Sun 11/1

2:47 pm-1:05 am

2 stops37h 18m

Nuku‘alofa Fua'Amotu Intl

Thu 11/5

6:50 pm-4:33 pm

3 stops42h 43m

$1,769

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

Fastest flight time

22h 51m

Direct flights

None
The fastest flight from State of Washington to Tongatapu takes 22h 51m
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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Frequently asked questions about flying from Washington to Tongatapu

  • 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.

Frequently asked questions about flying from Washington to Tongatapu

  • 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 flights according to clicks in the last 7 days on momondo
Flights to Nuku‘alofafrom $1,050