CNX - SEA

$442 Find Cheap Flights from Chiang Mai to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chiang Mai to Seattle departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chiang Mai to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chiang Mai to Seattle, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Chiang Mai to Seattle (CNX-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chiang Mai to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chiang Mai to Seattle

Thu, Feb 26 - Thu, Mar 19
EVA Air Logo
11:50 am - 5:30 pmCNX-SEA
20h 40m1 stop
EVA Air Logo
11:50 pm - 10:35 amSEA-CNX
20h 45m1 stop
$768EVA Air
Find Deal
Wed, Feb 25 - Wed, Mar 18
EVA Air Logo
11:50 am - 6:10 pmCNX-SEA
21h 20m1 stop
EVA Air Logo
1:10 am - 10:35 amSEA-CNX
19h 25m1 stop
$769EVA Air
Find Deal
Tue, Feb 3 - Mon, Feb 23
EVA Air Logo
11:50 am - 5:30 pmCNX-SEA
20h 40m1 stop
EVA Air Logo
12:10 am - 10:35 amSEA-CNX
19h 25m1 stop
$788EVA Air
Find Deal
Mon, Feb 23 - Sat, Mar 21
Korean Air Logo
12:15 am - 9:00 amCNX-SEA
23h 45m1 stop
Korean Air Logo
12:00 pm - 10:55 pmSEA-CNX
20h 55m1 stop
$845Korean Air
Find Deal
Fri, Jan 30 - Tue, Feb 24
Multiple Airlines Logo
12:15 pm - 6:10 pmCNX-SEA
20h 55m2 stops
Multiple Airlines Logo
11:30 pm - 10:35 amSEA-CNX
20h 05m1 stop
$856Multiple Airlines
Find Deal
Thu, Feb 26 - Thu, Mar 19
Multiple Airlines Logo
9:40 pm - 6:10 pmCNX-SEA
35h 30m2 stops
Multiple Airlines Logo
8:00 pm - 10:35 amSEA-CNX
24h 35m2 stops
$879Multiple Airlines
Find Deal
Tue, Feb 24 - Sun, Mar 15
STARLUX Airlines Logo
4:55 pm - 3:05 pmCNX-SEA
37h 10m1 stop
STARLUX Airlines Logo
12:45 am - 3:55 pmSEA-CNX
25h 10m1 stop
$898STARLUX Airlines
Find Deal
Mon, Feb 23 - Thu, Mar 19
Air Canada Logo
4:45 pm - 2:31 pmCNX-SEA
36h 46m2 stops
Air Canada Logo
8:00 pm - 11:05 amSEA-CNX
25h 05m2 stops
$901Air Canada
Find Deal
Fri, Feb 27 - Wed, Mar 18
Air Canada Logo
4:45 pm - 7:16 pmCNX-SEA
41h 31m2 stops
Air Canada Logo
5:50 am - 11:05 amSEA-CNX
39h 15m2 stops
$921Air Canada
Find Deal
Fri, Feb 27 - Mon, Mar 16
Korean Air Logo
12:15 am - 9:00 amCNX-SEA
23h 45m1 stop
Korean Air Logo
12:00 pm - 10:55 pmSEA-CNX
20h 55m1 stop
$971Korean Air
Find Deal

Everything you should know

Top airlines
EVA Air
Cheapest • from $768 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$768
EVA Air
Thu 2/26Thu 3/19
CNX - SEA • 1 stop
Cheapest one-way
$442
Typical prices: $648-$846
Multiple Airlines
Fri 2/6
CNX - SEA • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Booking Insights

KAYAK's insights & trends for Chiang Mai to Seattle flights

Get data-powered insights and trends into flights from Chiang Mai to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Chiang Mai to Seattle?

The average price of all round-trip flights from Chiang Mai to Seattle clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Seattle on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Chiang Mai to Seattle. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

Good to know

Low seasonApril
Cheapest flight$442
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Chiang Mai to Seattle

When to book flights from Chiang Mai to Seattle

Are your dates flexible? Find out the best times to travel from Chiang Mai to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chiang Mai to Seattle

  • What is the cheapest flight from Chiang Mai to Seattle?

    In the last 3 days, the lowest price for a flight from Chiang Mai to Seattle was $442 for a one-way ticket and $768 for a round-trip.

  • Do I need a passport to fly between Chiang Mai and Seattle?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Chiang Mai and on arrival in Seattle.

  • Which airports will I be using when flying from Chiang Mai to Seattle?

    Chiang Mai airport is called Chiang Mai and the only airport in Seattle is Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Chiang Mai to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chiang Mai to Seattle?

    SkyTeam is the only airline alliance operating flights between Chiang Mai and Seattle.

  • How does KAYAK find such low prices on flights from Chiang Mai to Seattle?

    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 Chiang Mai to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chiang Mai to Seattle?

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

  • What is the Hacker Fare option on flights from Chiang Mai to Seattle?

    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 to Seattle with an airline and back to Chiang Mai with another airline. Booking your flights between Chiang Mai and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chiang Mai to Seattle?

    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 to Seattle from Chiang Mai up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Chiang Mai to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Chiang Mai to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chiang Mai to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1155 reviews
8.7Crew
8.5Boarding
8.3Comfort
8.2Entertainment
8.1Food
Airline reviews

It’s great, long flight and arrive safe at destination

10.0 ExcellentAye, Oct 2025ICN - MSP
Read more Korean Air reviews

It’s great, long flight and arrive safe at destination

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This was an amazing flight. The crew was great. The service was great. The food provided was great.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

Not many people, so you can lay down on two seats

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

Everything you need to know for your flight from Chiang Mai to Seattle

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