How long is the flight from State of Washington to Tongatapu?

There are many flights that can get you from State of Washington to Tongatapu in 34h 23m. Fly via Fiji Airways or Air New Zealand to get the fastest option. Airlines will cover a distance of 5763 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Tongatapu ranges from 3.7 - 8.3 inches per month. February is typically the wettest month, when rainfall can reach 8.3 in. June is typically the driest time to visit Tongatapu when rainfall is around 3.7 in.

If weather is an important factor for your trip to Tongatapu, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 71.6 F).

What is the cheapest time of day to fly from WA to TT?

When flying from State of Washington to Tongatapu, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Washington to Tongatapu?

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

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

Yes. Cheapflights offers flight deals from Washington 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.

$1,187+ Flights from Washington to Tongatapu

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Cheap flight deals from Washington to Tongatapu

Cheapest flights from Washington to Tongatapu
Explore the most affordable flight options available from Washington to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

Fri 2/209:14 pm

SEA

TBU

2 stops55h 36m

Multiple Airlines

Wed 3/185:40 am

TBU

SEA

2 stops33h 11m

Multiple Airlines

Deal found 1/27

$1,187

Thu 2/263:50 pm

SEA

TBU

2 stops26h 10m

Multiple Airlines

Mon 3/911:20 am

TBU

SEA

2 stops27h 37m

Multiple Airlines

Deal found 1/25

$1,208

Wed 9/92:54 pm

SEA

TBU

2 stops38h 51m

Fiji Airways

Tue 9/225:40 am

TBU

SEA

2 stops36h 12m

Fiji Airways

Deal found 1/25

$1,220

Wed 9/92:54 pm

SEA

TBU

2 stops38h 51m

Fiji Airways

Wed 9/2311:20 am

TBU

SEA

2 stops30h 32m

Fiji Airways

Deal found 1/26

$1,233

Tue 8/252:32 pm

SEA

TBU

2 stops39h 13m

Multiple Airlines

Thu 9/311:20 am

TBU

SEA

2 stops26h 37m

Multiple Airlines

Deal found 1/27

$1,238

Tue 8/252:32 pm

SEA

TBU

2 stops39h 13m

Fiji Airways

Wed 9/211:20 am

TBU

SEA

2 stops27h 36m

Fiji Airways

Deal found 1/27

$1,276

Wed 9/92:54 pm

SEA

TBU

2 stops23h 41m

Fiji Airways

Thu 9/2411:20 am

TBU

SEA

2 stops30h 32m

Fiji Airways

Deal found 1/25

$1,307

Mon 8/242:32 pm

SEA

TBU

2 stops24h 03m

Fiji Airways

Wed 9/211:20 am

TBU

SEA

2 stops27h 36m

Fiji Airways

Deal found 1/27

$1,309

Wed 8/262:32 pm

SEA

TBU

2 stops39h 13m

Fiji Airways

Wed 9/25:00 am

TBU

SEA

2 stops36h 07m

Fiji Airways

Deal found 1/27

$1,365

Tue 1/273:22 pm

PDX

TBU

2 stops37h 28m

Fiji Airways

Sat 1/314:00 pm

TBU

PDX

2 stops22h 52m

Fiji Airways

Deal found 1/25

$1,561

Best flights from Washington to Tongatapu
Discover carefully curated flight deals from Washington to Tongatapu that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 27, 2026.

Fri 2/209:14 pm

SEA

TBU

2 stops55h 36m

Multiple Airlines

Wed 3/185:40 am

TBU

SEA

2 stops33h 11m

Multiple Airlines

Deal found 1/27

$1,187

Sat 4/47:22 pm

SEA

TBU

2 stops34h 23m

Fiji Airways

Tue 4/75:40 am

TBU

SEA

2 stops37h 09m

Fiji Airways

Deal found 1/25

$2,031

Fri 2/207:33 pm

SEA

TBU

2 stops51h 47m

Air New Zealand

Wed 3/181:10 pm

TBU

SEA

3 stops46h 40m

Air New Zealand

Deal found 1/27

$2,047

Thu 2/263:50 pm

SEA

TBU

2 stops26h 10m

Multiple Airlines

Mon 3/911:20 am

TBU

SEA

2 stops27h 37m

Multiple Airlines

Deal found 1/25

$1,208

Last-minute flights from Washington to Tongatapu
Discover last-minute flight deals from Washington to Tongatapu. Data last updated January 27, 2026 and is based on user searches.

Tue 1/273:22 pm

PDX

TBU

2 stops37h 28m

Fiji Airways

Sat 1/314:00 pm

TBU

PDX

2 stops22h 52m

Fiji Airways

Deal found 1/25

$1,561

Fri 2/209:14 pm

SEA

TBU

2 stops55h 36m

Multiple Airlines

Wed 3/185:40 am

TBU

SEA

2 stops33h 11m

Multiple Airlines

Deal found 1/27

$1,187

Fri 2/207:33 pm

SEA

TBU

2 stops51h 47m

Air New Zealand

Wed 3/181:10 pm

TBU

SEA

3 stops46h 40m

Air New Zealand

Deal found 1/27

$2,047

Thu 2/263:50 pm

SEA

TBU

2 stops26h 10m

Multiple Airlines

Mon 3/911:20 am

TBU

SEA

2 stops27h 37m

Multiple Airlines

Deal found 1/25

$1,208

Find flight deals from Washington to Tongatapu

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Round-trip from	$1,187 (oojo)

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From Washington to Tongatapu

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Use the filters below to find and compare flights from Washington to Tongatapu that are best for you.

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Fly to

Route

Depart

Return

Price

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Fri 2/20

9:14 pm-1:50 am

2 stops55h 36m

Nuku‘alofa Fua'Amotu Intl

Wed 3/18

5:40 am-6:51 pm

2 stops33h 11m

$1,187

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Thu 2/26

3:50 pm-3:00 pm

2 stops26h 10m

Nuku‘alofa Fua'Amotu Intl

Mon 3/9

11:20 am-6:57 pm

2 stops27h 37m

$1,208

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-10:49 pm

2 stops37h 09m

$2,031

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Fri 2/20

7:33 pm-8:20 pm

2 stops51h 47m

Nuku‘alofa Fua'Amotu Intl

Wed 3/18

1:10 pm-3:50 pm

3 stops46h 40m

$2,047

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Best time to book a flight from Washington to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu from Washington 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.

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Everything you need to know about your flight from Washington to Tongatapu

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Related info for your journey

How long is the flight from State of Washington to Tongatapu?
There are many flights that can get you from State of Washington to Tongatapu in 34h 23m. Fly via Fiji Airways or Air New Zealand to get the fastest option. Airlines will cover a distance of 5763 mi. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from Washington to Tongatapu that include hotel bookings?
Yes. In addition to deals on Washington to Tongatapu flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Tongatapu?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Tongatapu.
Can I find deals for business class flights from Washington to Tongatapu?
Yes. Cheapflights offers flight deals from Washington 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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$1,187+ Cheap flights from Washington 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Tongatapu with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington to Tongatapu

Cheapest flights from Washington to TongatapuExplore the most affordable flight options available from Washington to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

Explore the most affordable flight options available from Washington to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

Find flight deals from Washington to Tongatapu

Keep the following information in mind while searching for Washington to Tongatapu flight deals. Data was last updated January 27, 2026.

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Use the filters below to find and compare flights from Washington to Tongatapu that are best for you.

Best time to book a flight from Washington to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu from Washington with our price prediction graph.

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Everything you need to know about your flight from Washington to Tongatapu

Related info for your journey

Find useful and relevant information for your journey from Washington to Tongatapu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from State of Washington to Tongatapu?

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

How can I find direct flights from Washington to Tongatapu?

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

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Cheapest flights from Washington to Tongatapu
Explore the most affordable flight options available from Washington to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.