$507 Find Cheap Flights from Chiang Mai to Washington

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 Washington 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 Washington

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

Book Cheap Chiang Mai to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chiang Mai to Washington 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 Washington

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
Sun, Jul 5 - Mon, Sep 7
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
$979China Airlines
Thu, Jul 9 - Mon, Sep 7
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
$984China Airlines
Tue, May 12 - Tue, Jun 30
EVA Air Logo
11:35 am - 7:30 pm
CNX
-
SEA
21h 55m
1 stop
EVA Air Logo
1:50 am - 10:25 am
SEA
-
CNX
18h 35m
1 stop
$997EVA Air
Wed, Aug 19 - Mon, Sep 14
China Airlines Logo
11:20 am - 8:11 am
CNX
-
SEA
34h 51m
2 stops
China Airlines Logo
1:55 am - 10:20 am
SEA
-
CNX
18h 25m
1 stop
$998China Airlines
Thu, May 14 - Tue, Jun 30
Multiple Airlines Logo
5:20 pm - 12:01 pm
CNX
-
SEA
32h 41m
2 stops
Multiple Airlines Logo
6:36 pm - 4:20 pm
SEA
-
CNX
31h 44m
2 stops
$1,010Multiple Airlines
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 - 11:15 am
SEA
-
CNX
43h 25m
2 stops
$1,018EVA Air
Thu, Jul 9 - Tue, Sep 8
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
$1,021China Airlines
Wed, Sep 16 - Sat, Sep 19
China Airlines Logo
2:35 pm - 7:15 pm
CNX
-
SEA
42h 40m
2 stops
China Airlines Logo
1:15 am - 10:20 am
SEA
-
CNX
19h 05m
1 stop
$1,027China Airlines
Fri, Oct 23 - Sat, Oct 31
EVA Air Logo
11:35 am - 7:20 pm
CNX
-
SEA
21h 45m
1 stop
EVA Air Logo
11:50 pm - 10:35 am
SEA
-
CNX
20h 45m
1 stop
$1,030EVA Air
Booking Insights

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

Get data-powered insights and trends into flights from Chiang Mai to Washington 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 State of Washington?

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 State of Washington departing in May.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chiang Mai to Washington, 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 Washington is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are April and August, when the average cost of round-trip tickets is $1,033 and $912 respectively.

Good to know

Low seasonFebruary
Cheapest flight$507
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

FAQs - booking Washington flights

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

    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 Washington.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chiang Mai to Washington 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 Washington?

    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 Chiang Mai to Washington with an airline and back with another airline.

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

    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 Chiang Mai to Washington 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 Washington

 
See real verified KAYAK customer reviews for airlines flying from Chiang Mai to Washington. 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 Washington? 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
8.7Crew
8.2Entertainment
8.5Boarding
8.1Food
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.

Flight attendants. Food, entertainment and most of all, be on time.

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.

The flat bed full lying position is not comfortable at all, this could be improved, it is at an awkward position which i dont have the same issues with other airlines business class.

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

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

Information on your arrival and departure airports