Search flights from Seattle (SEA) to Chiang Mai (CNX)

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Cheapest flights to Chiang Mai

The cheapest flights available in the next 60 days – prices are updated regularly

Flying from Seattle to Chiang Mai: things to know

The most popular route is from Sea-Tac Airport in Seattle to Chiang Mai International Airport in Chiang Mai. On average this flight takes 20 hours 11 minutes one way and costs US$1,186 for the round trip.

Most popular route
Sea-Tac Airport (SEA) to Chiang Mai International Airport (CNX)
Average flight time
20 hours 11 minutes
Average round-trip price
US$1,186
Fly from Seattle to Chiang Mai
8 airlines

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Airlines that fly from Seattle to Chiang Mai

Airline options may vary according to recently booked flights and your search terms

  • Asiana Airlines
  • China Airlines
  • Eva Air
  • Korean Air
  • DAC Aviation
  • All Nippon Airways
  • Alaska Airlines
  • Singapore Airlines

Frequently asked questions

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Flights from the United States to Thailand

Flexible on where to fly from? the United States also has many flight options for Thailand.

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