Cheap flights from Chiang Mai to Seattle from $807
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chiang Mai to Seattle departing on 11/11. 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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How to get the cheapest flight ticket from Chiang Mai to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
In general, November is the cheapest month to fly from Chiang Mai to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $797. If you don’t want to visit Seattle in November, then you should wait until May to fly from Chiang Mai, when ticket prices are also cheap, with an average price of $829.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Chiang Mai is on a Sunday. momondo users have found tickets for Sunday departures for as low as $946. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Chiang Mai because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,147.
When to book flights from Chiang Mai to Seattle
Cheap Chiang Mai to Seattle (CNX to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chiang Mai to Seattle
How far is Chiang Mai to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 7178.6 mi away from Chiang Mai. 19h 55m is a normal flight duration for this route.
When did momondo last update prices for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport?
As of June 2025, there are 3 operators available to choose from for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Chiang Mai Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chiang Mai Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport 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 Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Chiang Mai to Seattle?
momondo data reveals that the most frequently booked airline on the route from Chiang Mai to Seattle is EVA Air, representing 38% of all bookings. The subsequent popular airlines are Korean Air at 32% and Asiana Airlines at 30%.
Best airlines flying from Chiang Mai to Seattle
Compare and see reviews for airlines that fly from Chiang Mai to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $622 | Free Cancellation | Rating 8.2 441 reviews | |||
| PriceFrom $788 | Free Cancellation | Rating 8.4 1,205 reviews | |||
| PriceFrom $793 | Free Cancellation | Rating 8.4 1,090 reviews |
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Why should I use momondo to find a flight deal from Chiang Mai to Seattle?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chiang Mai to Seattle. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Chiang Mai to Seattle with flexible booking policies on momondo?
Flights from Chiang Mai to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Chiang Mai to Seattle?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Chiang Mai.
I’m not ready to book a flight from Chiang Mai to Seattle right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Chiang Mai to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.