Find cheap flights from Seattle to Tonga

Search hundreds of travel sites at once for deals on flights to Tonga. Bundle your flight + hotel and save!

SEA — Tonga
Sep 27 — Oct 41
1 adult
0 bags
Mon 9/27
Mon 10/4
There are travel restrictions to Tonga.Learn more
Stay informed and receive email updates for when travel restrictions ease for Tonga.

Good to know

Low season

FebruaryBest time to beat the crowds with an average 5% drop in price.

High season

DecemberMost popular time to fly with an average 39% increase in price.

Average price round-trip

$1,970(avg. price over the last 2 weeks)

Good deal round-trip

$1,584or less

Good deal one-way

$1,300or less

Top tips for finding cheap flights to Tonga

  • Book at least 4 weeks before departure in order to get a below-average price.
  • High season is considered to be January, November and December. The cheapest month to fly to Tonga is February.

FAQs - booking Tonga flights

  • Most visitors from Seattle will not be allowed to enter Tonga. Tongan citizens, Tongan Permanent residents and International travelers approved by the Ministry of Health are exempt from this restriction.
    Read more about travel restrictions for Tonga

  • Visitors from Seattle will need to quarantine for 14 days upon entering Tonga.

  • Visitors from Seattle must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Tonga.

  • Travel Authorization Form
    Tongans overseas who wish to register their interest to return to Tonga should fill out this form.

  • KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Tonga.

  • KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Tonga is likely to change within 7 days, so travelers know whether to wait or book now.

  • Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Tonga with an airline and back with another airline.

  • Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Tonga up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

COVID-19 information

Safety measures for airlines flying from Seattle to Tonga

Airlines flying from Seattle to Tonga have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Seattle to Tonga

Mandatory masks

Masks required on board, masks provided on flights from Seattle to Tonga

Social distancing seating

Middle seats unavailable to book on flights from Seattle to Tonga

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Seattle to Tonga

Flexible cancellations

Waiving of change fees. Search flexible flights from Seattle to Tonga

Seattle - Tonga Flights


Seattle (SEA)United States

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