In terms of precipitation, rainfall in Tonga 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 Tonga when rainfall is around 3.7 in.

If weather is an important factor for your trip to Tonga, 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 SEA to TO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Tonga as you normally would.

What airport do you fly from for flights from Seattle to Tonga?

If you book a flight to Tonga from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

Can I find deals for flights from Seattle to Tonga that include hotel bookings?

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

How can I find direct flights from Seattle to Tonga?

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

Can I find deals for business class flights from Seattle to Tonga?

Yes. Cheapflights offers flight deals from Seattle to Tonga by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$662+ Flights from Seattle to Tonga

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Cheap flight deals from Seattle to Tonga

Round-trip from	$1,359 (Travelocity)

From Seattle/Tacoma Intl to Tonga

Search Deals

Find flight deals from Seattle to Tonga

Cheapest flights from Seattle to Tonga
Explore the most affordable flight options available from Seattle to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 16, 2025.

Wed 11/55:57 pmSEA - TBU

2 stops25h 03mMultiple Airlines

Mon 11/1011:20 amTBU - SEA

2 stops26h 36mMultiple Airlines

Deal found 7/16

$1,359

Tue 8/122:32 pmSEA - TBU

2 stops38h 33mFiji Airways

Tue 8/196:20 pmTBU - SEA

2 stops23h 13mFiji Airways

Deal found 7/15

$1,424

Best flights from Seattle to Tonga
Discover carefully curated flight deals from Seattle to Tonga that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 16, 2025.

Wed 11/55:57 pmSEA - TBU

2 stops25h 03mMultiple Airlines

Mon 11/1011:20 amTBU - SEA

2 stops26h 36mMultiple Airlines

Deal found 7/16

$1,359

Tue 8/122:32 pmSEA - TBU

2 stops38h 33mFiji Airways

Tue 8/196:20 pmTBU - SEA

2 stops23h 13mFiji Airways

Deal found 7/15

$1,424

Last-minute flights from Seattle to Tonga
Discover last-minute flight deals from Seattle to Tonga. Data last updated July 16, 2025 and is based on user searches.

Tue 8/122:32 pmSEA - TBU

2 stops38h 33mFiji Airways

Tue 8/196:20 pmTBU - SEA

2 stops23h 13mFiji Airways

Deal found 7/15

$1,424

Wed 8/136:09 pmSEA - TBU

2 stops25h 46mMultiple Airlines

Wed 8/2010:25 amTBU - SEA

2 stops28h 00mMultiple Airlines

Deal found 7/14

$1,363

Cheapflights Fare Finder

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

Wed 11/5

5:57 pm-4:00 pm

2 stops25h 03m

Nuku‘alofa Fua'Amotu Intl

Mon 11/10

11:20 am-4:56 pm

2 stops26h 36m

$1,359

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Tue 8/12

2:32 pm-1:05 am

2 stops38h 33m

Nuku‘alofa Fua'Amotu Intl

Tue 8/19

6:20 pm-9:33 pm

2 stops23h 13m

$1,424

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Thu 8/28

5:05 pm-3:45 pm

2 stops26h 40m

$662

SeattleNuku‘alofa

SEA - TBU

SEATBU

Seattle/Tacoma Intl

Thu 8/28

10:00 am-3:45 pm

3 stops33h 45m

$888

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

Best time to book a flight from Seattle to Tonga

Have a flexible travel schedule? Discover the best time to fly to Tonga from Seattle 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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Tonga

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Tonga

See what other customers who have flown with Fiji Airways from Seattle to Tonga have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Fiji Airways

8.0

Very good

201 reviews

Reviews

1 / 16

6.0

Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Fiji Airways

8.0

Very good

201 reviews

Fiji Airways

8.0

Very good

201 reviews

Reviews

1 / 16

6.0

Good

Christopher,Jun 2025

LAX - NAN

Related info for your journey

What airport do you fly from for flights from Seattle to Tonga?
If you book a flight to Tonga from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.
Can I find deals for flights from Seattle to Tonga that include hotel bookings?
Yes. In addition to deals on Seattle to Tonga flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Tonga?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Tonga.
Can I find deals for business class flights from Seattle to Tonga?
Yes. Cheapflights offers flight deals from Seattle to Tonga by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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$662+ Cheap flights from Seattle (SEA) to Tonga

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Tonga with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Tonga

Keep the following information in mind while searching for Seattle to Tonga flight deals. Data was last updated July 16, 2025.

Round-trip from

Find flight deals from Seattle to Tonga

Cheapest flights from Seattle to TongaExplore the most affordable flight options available from Seattle to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 16, 2025.

Explore the most affordable flight options available from Seattle to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 16, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Seattle to Tonga

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

Cheapflights Insights

Everything you need to know about your flight from Seattle to Tonga

Reviews of airlines servicing Tonga

Get insights into the airlines that provide service to Tonga. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Tonga. Reviews last updated July 16, 2025.

See what other customers who have flown with Fiji Airways from Seattle to Tonga have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly from for flights from Seattle to Tonga?

Can I find deals for flights from Seattle to Tonga that include hotel bookings?

How can I find direct flights from Seattle to Tonga?

Can I find deals for business class flights from Seattle to Tonga?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Tonga

See prices for flight routes from nearby airports that may be better suited for you.

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Travel Smart

Cheapest flights from Seattle to Tonga
Explore the most affordable flight options available from Seattle to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 16, 2025.