CNX - SEA

$507 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 10/1. 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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Everything you should know

Cheapest round-trip
$943
Typical prices: $916-$902
EVA Air
Mon 5/18Sun 5/24
CNX - SEA • 2 stops
Cheapest one-way
$520
Overall average: $755
STARLUX Airlines
Thu 10/1
CNX - SEA • 1 stop
Top airlines
Cheapest • from $943 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Chiang Mai and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,252 (round-trip)
Shortest trip • 21h 49m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
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

Mon, May 18 - Sun, May 24
EVA Air Logo
8:00 pm - 7:30 pm
CNX
-
SEA
37h 30m
2 stops
EVA Air Logo
1:50 am - 10:25 am
SEA
-
CNX
18h 35m
1 stop
$943EVA Air
Mon, May 18 - Sun, May 24
EVA Air Logo
8:00 pm - 7:30 pm
CNX
-
SEA
37h 30m
2 stops
EVA Air Logo
1:50 am - 1:45 pm
SEA
-
CNX
21h 55m
2 stops
$997EVA Air
Thu, Jun 18 - Thu, Jun 25
Multiple Airlines Logo
5:20 pm - 4:10 pm
CNX
-
SEA
36h 50m
1 stop
Multiple Airlines Logo
8:42 pm - 4:20 pm
SEA
-
CNX
29h 38m
2 stops
$998Multiple Airlines
Tue, Jun 16 - Mon, Aug 31
Air Canada Logo
9:10 pm - 10:05 am
CNX
-
SEA
26h 55m
2 stops
Air Canada Logo
3:00 pm - 8:45 am
SEA
-
CNX
27h 45m
2 stops
$999Air Canada
Thu, Sep 10 - Sat, Sep 12
China Airlines Logo
11:20 am - 7:45 pm
CNX
-
SEA
22h 25m
1 stop
China Airlines Logo
1:55 am - 7:10 pm
SEA
-
CNX
27h 15m
2 stops
$1,033China Airlines
Thu, Sep 10 - Sat, Sep 12
China Airlines Logo
11:20 am - 7:45 pm
CNX
-
SEA
22h 25m
1 stop
China Airlines Logo
1:55 am - 10:20 am
SEA
-
CNX
18h 25m
1 stop
$1,035China Airlines
Thu, Sep 10 - Sat, Sep 12
China Airlines Logo
11:20 am - 7:45 pm
CNX
-
SEA
22h 25m
1 stop
China Airlines Logo
1:55 am - 9:20 am
SEA
-
CNX
41h 25m
2 stops
$1,037China Airlines
Thu, Sep 10 - Sat, Sep 12
China Airlines Logo
11:20 am - 7:45 pm
CNX
-
SEA
22h 25m
1 stop
China Airlines Logo
1:55 am - 10:20 am
SEA
-
CNX
18h 25m
1 stop
$1,039China Airlines
Thu, Sep 10 - Sat, Sep 12
China Airlines Logo
11:20 am - 7:45 pm
CNX
-
SEA
22h 25m
1 stop
China Airlines Logo
1:55 am - 10:20 am
SEA
-
CNX
18h 25m
1 stop
$1,040China Airlines
Thu, Sep 10 - Sat, Sep 12
China Airlines Logo
11:20 am - 7:45 pm
CNX
-
SEA
22h 25m
1 stop
China Airlines Logo
1:55 am - 10:20 am
SEA
-
CNX
18h 25m
1 stop
$1,042China Airlines
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.

How much is a round-trip flight from Chiang Mai to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chiang Mai to Seattle departing in May.

What is the cheapest month to fly from Chiang Mai to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chiang Mai to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chiang Mai to Seattle is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are September and April, where the average cost of round-trip tickets is $1,083 and $1,056 respectively.

Good to know

Low seasonFebruary
Cheapest flight$520
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 1% 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 $520 for a one-way ticket and $943 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.

  • Which is the best airline for flights from Chiang Mai to Seattle, Korean Air or China Airlines?

    The two airlines most popular with KAYAK users for flights from Chiang Mai to Seattle are Korean Air and China Airlines. With an average price for the route of $832 and an overall rating of 8.4, Korean Air is the most popular choice. China Airlines is also a great choice for the route, with an average price of $915 and an overall rating of 8.3.

  • 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 airlines 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 1216 reviews
8.3Comfort
8.2Entertainment
8.5Boarding
8.1Food
8.7Crew
Airline reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

10.0 ExcellentFiruz, Apr 2026
ICN - LAX
Read more Korean Air reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

AAAAHHHH... It was shocking in a very positive way, the attention to detail, the courtesy, the manners of all personnel on board, the constant honest smiling. You can see and feel they take pride in all they do no matter how trivial. The plane in general was very comfortable. I can't wait to do it again

Great service and comfort level. You can have more of vegetarian food options.

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.

We boarded late and it snowballed from there. Had to wait behind 6 other flights to take off before us. Then, arriving late to our destination, we had to circle in the air for 20 minutes. If that's not enough, the seats are very cramped on their iteration if the A321neo. I'm 6"3' tall and my knees were pressed against the seat in front of me. These are not the slimline seats that offer less cushion with more leg room. I had no room to move my legs. Since I am an adult male, I also had no shoulder room. I sat on an aisle seat to have some space to lean my should out. But the walkway seemed to be more narrow than I am used to see. I felt bad for the middle passenger because there was just no where for me to put my shoulders except into the middle seat person. I don't plan to fly in this airline again in this configuration. Pack everyone in and lose my business.

We really enjoyed our flight to Seattle. The food was great and service was attentive.

Everything was fine except the seats were quite compressed and hard for the 12 hour flight

The crew are amazing. Very professional, polite, kind, and accommodating.

The crew was very professional and friendly. Although there was a water leak from panel above, the crew was trying to mitigate the consequence. We are happy with its service and the value offered. We will definitely take China Airlines again.

Very bad. They don’t allow group people to sit together by blocking most of seats and opening only single seat during online checking in. . By doing so, they can rip off customers at the check-in counter by collecting extra money if we want to sit together in the same row.

Hour late but understandable under the conditions. Taoyuan airport could have clearer signs language wise and more staff to help direct people.

Delayed. Not a full flight and whole rows left open with the paid seating. Food was ok. My beef meal only had one cube of beef the rest carrot cubes. Entertainment on personal device but didn’t know about it until the flight was almost done.

We are glad to have used China Airlines for our trip. Continue the good service! Thank you!

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

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

Information on your arrival and departure airports