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Cheap flights from Washington to Tongatapu from $1,178

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 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington to Tongatapu

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:35 pm - 1:45 am
PDX
-
TBU
56h 10m
2 stops
Multiple Airlines Logo
5:40 am - 8:36 pm
TBU
-
PDX
34h 56m
2 stops
$1,178Multiple Airlines
Tue, Sep 1 - Tue, Sep 15
Multiple Airlines Logo
5:35 pm - 10:35 am
PDX
-
TBU
21h 00m
2 stops
Multiple Airlines Logo
11:20 am - 8:50 pm
TBU
-
PDX
29h 30m
2 stops
$1,244Multiple Airlines
Mon, Sep 21 - Wed, Sep 30
Multiple Airlines Logo
10:30 am - 1:05 am
PDX
-
TBU
42h 35m
3 stops
Multiple Airlines Logo
5:00 am - 8:50 pm
TBU
-
PDX
35h 50m
2 stops
$1,394Multiple Airlines
Mon, Sep 21 - Wed, Sep 30
Multiple Airlines Logo
1:50 pm - 10:35 am
PDX
-
TBU
24h 45m
2 stops
Multiple Airlines Logo
5:40 am - 6:14 am
TBU
-
PDX
44h 34m
3 stops
$1,429Multiple Airlines
Tue, Sep 1 - Tue, Sep 15
Fiji Airways Logo
5:36 pm - 1:45 am
SEA
-
TBU
36h 09m
2 stops
Fiji Airways Logo
5:40 am - 9:45 pm
TBU
-
SEA
36h 05m
2 stops
$1,579Fiji Airways
Wed, Jul 1 - Sat, Jul 11
Fiji Airways Logo
5:02 pm - 1:05 am
SEA
-
TBU
36h 03m
2 stops
Fiji Airways Logo
5:40 am - 11:21 pm
TBU
-
SEA
37h 41m
2 stops
$1,650Fiji Airways
Mon, Aug 24 - Fri, Aug 28
Fiji Airways Logo
4:15 pm - 1:05 am
SEA
-
TBU
36h 50m
3 stops
Fiji Airways Logo
5:40 am - 5:59 pm
TBU
-
SEA
32h 19m
2 stops
$1,694Fiji Airways
Mon, Aug 24 - Fri, Aug 28
Fiji Airways Logo
5:02 pm - 1:05 am
SEA
-
TBU
36h 03m
2 stops
Fiji Airways Logo
5:40 am - 11:21 pm
TBU
-
SEA
37h 41m
2 stops
$1,725Fiji Airways
Mon, Aug 24 - Fri, Aug 28
Fiji Airways Logo
4:15 pm - 1:05 am
SEA
-
TBU
36h 50m
3 stops
Fiji Airways Logo
5:40 am - 8:13 am
TBU
-
SEA
22h 33m
3 stops
$1,807Fiji Airways
Mon, Aug 24 - Fri, Aug 28
Fiji Airways Logo
5:32 pm - 1:45 am
PDX
-
TBU
36h 13m
2 stops
Fiji Airways Logo
11:20 am - 10:39 pm
TBU
-
PDX
31h 19m
2 stops
$1,816Fiji Airways
Sat, Aug 15 - Wed, Aug 19

Fiji Airways flights from State of Washington to Tongatapu

Our best Fiji Airways deals on State of Washington to Tongatapu flight tickets
Fiji Airways
Jul 1
SEA5:36 pmSeattle/Tacoma Intl
36h 09m
2 stops
TBU1:45 amNuku‘alofa Fua'Amotu Intl
Jul 11
TBU5:40 amNuku‘alofa Fua'Amotu Intl
36h 05m
2 stops
SEA9:45 pmSeattle/Tacoma Intl
$1,579
Fiji Airways
Aug 24
SEA5:02 pmSeattle/Tacoma Intl
36h 03m
2 stops
TBU1:05 amNuku‘alofa Fua'Amotu Intl
Aug 28
TBU5:40 amNuku‘alofa Fua'Amotu Intl
37h 41m
2 stops
SEA11:21 pmSeattle/Tacoma Intl
$1,650
Fiji Airways
Aug 24
SEA4:15 pmSeattle/Tacoma Intl
36h 50m
3 stops
TBU1:05 amNuku‘alofa Fua'Amotu Intl
Aug 28
TBU5:40 amNuku‘alofa Fua'Amotu Intl
32h 19m
2 stops
SEA5:59 pmSeattle/Tacoma Intl
$1,694

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 May 7, 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

PortlandNuku‘alofa

PDX - TBU

PDXTBU

Portland

Tue 9/1

9:35 pm-1:45 am

2 stops56h 10m

Nuku‘alofa Fua'Amotu Intl

Tue 9/15

5:40 am-8:36 pm

2 stops34h 56m

$1,178
Quickest round-trip

PortlandNuku‘alofa

PDX - TBU

PDXTBU

Portland

Mon 9/21

5:35 pm-10:35 am

2 stops21h 00m

Nuku‘alofa Fua'Amotu Intl

Wed 9/30

11:20 am-8:50 pm

2 stops29h 30m

$1,244

PortlandNuku‘alofa

PDX - TBU

PDXTBU

Portland

Mon 9/21

10:30 am-1:05 am

3 stops42h 35m

Nuku‘alofa Fua'Amotu Intl

Wed 9/30

5:00 am-8:50 pm

2 stops35h 50m

$1,394

PortlandNuku‘alofa

PDX - TBU

PDXTBU

Portland

Tue 9/1

1:50 pm-10:35 am

2 stops24h 45m

Nuku‘alofa Fua'Amotu Intl

Tue 9/15

5:40 am-6:14 am

3 stops44h 34m

$1,429

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Wed 7/1

5:36 pm-1:45 am

2 stops36h 09m

Nuku‘alofa Fua'Amotu Intl

Sat 7/11

5:40 am-9:45 pm

2 stops36h 05m

$1,579

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Mon 8/24

5:02 pm-1:05 am

2 stops36h 03m

Nuku‘alofa Fua'Amotu Intl

Fri 8/28

5:40 am-11:21 pm

2 stops37h 41m

$1,650

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Mon 8/24

4:15 pm-1:05 am

3 stops36h 50m

Nuku‘alofa Fua'Amotu Intl

Fri 8/28

5:40 am-5:59 pm

2 stops32h 19m

$1,694

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Mon 8/24

5:02 pm-1:05 am

2 stops36h 03m

Nuku‘alofa Fua'Amotu Intl

Fri 8/28

5:40 am-11:21 pm

2 stops37h 41m

$1,725

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Mon 8/24

4:15 pm-1:05 am

3 stops36h 50m

Nuku‘alofa Fua'Amotu Intl

Fri 8/28

5:40 am-8:13 am

3 stops22h 33m

$1,807

PortlandNuku‘alofa

PDX - TBU

PDXTBU

Portland

Sat 8/15

5:32 pm-1:45 am

2 stops36h 13m

Nuku‘alofa Fua'Amotu Intl

Wed 8/19

11:20 am-10:39 pm

2 stops31h 19m

$1,816

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

28h 28m

Direct flights

None
The fastest flight from State of Washington to Tongatapu takes 28h 28m
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 $971