$540 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 1/23. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chiang Mai to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle2 stops$825
Seattle
Seattle2 stops$825

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

Thu, Oct 16 - Tue, Oct 21
 Logo
11:05 am - 7:15 pmCNX-SEA
46h 10m2 stops
 Logo
2:15 pm - 11:40 pmSEA-CNX
19h 25m1 stop
Sun, Sep 28 - Sun, Oct 26
Korean Air Logo
11:15 pm - 10:40 amCNX-SEA
25h 25m1 stop
Korean Air Logo
12:00 pm - 10:55 pmSEA-CNX
20h 55m1 stop
$834Korean Air
Find Deal
Thu, Oct 16 - Tue, Oct 21
Korean Air Logo
11:15 pm - 10:40 amCNX-SEA
25h 25m1 stop
Korean Air Logo
12:50 pm - 9:55 pmSEA-CNX
19h 05m1 stop
$835Korean Air
Find Deal
Mon, Nov 10 - Thu, Dec 4
China Airlines Logo
5:35 pm - 6:10 pmCNX-SEA
15h 35m1 stop
China Airlines Logo
12:10 am - 10:25 amSEA-CNX
19h 15m1 stop
$840China Airlines
Find Deal
Mon, Nov 10 - Thu, Dec 4
China Airlines Logo
5:35 pm - 6:10 pmCNX-SEA
15h 35m1 stop
China Airlines Logo
12:10 am - 10:25 amSEA-CNX
19h 15m1 stop
$841China Airlines
Find Deal
Sun, Dec 21 - Sat, Dec 27
EVA Air Logo
11:50 am - 6:10 pmCNX-SEA
21h 20m1 stop
EVA Air Logo
11:30 pm - 10:35 amSEA-CNX
20h 05m1 stop
$843EVA Air
Find Deal
Tue, Sep 30 - Tue, Oct 28
EVA Air Logo
11:35 am - 7:30 pmCNX-SEA
21h 55m1 stop
EVA Air Logo
11:50 pm - 10:35 amSEA-CNX
20h 45m1 stop
$846EVA Air
Find Deal
Wed, Oct 15 - Tue, Oct 21
Asiana Airlines Logo
12:45 am - 12:30 pmCNX-SEA
25h 45m1 stop
Asiana Airlines Logo
2:15 pm - 11:40 pmSEA-CNX
19h 25m1 stop
$849Asiana Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 26
Air Canada Logo
11:15 am - 10:26 pmCNX-SEA
49h 11m2 stops
Air Canada Logo
10:05 am - 3:35 pmSEA-CNX
39h 30m2 stops
$908Air Canada
Find Deal
Sat, Oct 4 - Sun, Oct 26
Air Canada Logo
5:40 pm - 2:16 pmCNX-SEA
34h 36m2 stops
Air Canada Logo
10:05 am - 3:35 pmSEA-CNX
39h 30m2 stops
$927Air Canada
Find Deal
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.

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

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

If you are looking for a flight deal from Chiang Mai to Washington, look for departures on Sundays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Washington, Tuesday is the cheapest day to fly and Friday is the most expensive.

Good to know

Low seasonFebruary
Cheapest flight$540
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Chiang Mai to Portland

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.

  • What is the cheapest time of day to fly to Washington?

    The cheapest time of day to fly to Washington is generally at night, when round-trip flights cost $950 on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,095.

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 1133 reviews
8.2Entertainment
8.1Food
8.5Boarding
8.2Comfort
8.7Crew
Airline reviews

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.

8.0 ExcellentMatt, Aug 2025ATL - EWR
Read more Korean Air reviews

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.

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

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

Very clean ,flight attendants very professional,nice , Boarding was very easy

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

The plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

Love flying Asiana. Been using it for over a decade now.

Coming back to America was a peaceful flight everyone and everything was perfect

I had a bad experience coming from America to Thailand. On my connecting flight my check in suitcase was not put on the departing aircraft, I received my suitcase 24 hours after arriving in Bangkok and when I open my luggage my hand swelled up. The next morning when I put on an outfit from my suitcase my face swelled up and became numb. My entire vacation was ruined it seems that some kind of chemical was sprayed into suitcase and ruined my clothes and got me sick. The staff at my hotel called the airline and spoke to someone and they told me to file a complaint and gave my a website to do so. I did not file a complaint I felt like it would have fell on death ears. I had to throw away my brand new vacation clothes and suitcase and I had the worst vacation ever due to this happening to me.

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Staff always with a smile and very helpful with my mom who has mobility issues.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.