CNX - WAS

$575 Find Cheap Flights from Chiang Mai to Washington, D.C.

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, D.C. departing on 2/15. 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, D.C.

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

Cheap Flights from Chiang Mai to Washington, D.C. (CNX-WAS)

 
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, D.C. 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, D.C.

Tue, Mar 3 - Sun, Mar 15
Delta Logo
12:15 am - 11:35 pmCNX-IAD
35h 20m2 stops
Delta Logo
5:00 pm - 10:55 pmIAD-CNX
42h 55m2 stops
$1,127Delta
Find Deal
Tue, Mar 3 - Sun, Mar 15
Delta Logo
12:15 am - 11:02 pmCNX-IAD
34h 47m2 stops
Delta Logo
7:00 am - 10:55 pmIAD-CNX
28h 55m2 stops
$1,128Delta
Find Deal
Thu, Dec 18 - Fri, Jan 2
Air China Logo
11:05 pm - 6:30 pmCNX-IAD
31h 25m1 stop
Air China Logo
10:00 pm - 9:50 pmIAD-CNX
35h 50m1 stop
$1,210Air China
Find Deal
Thu, Dec 18 - Fri, Jan 2
Air China Logo
11:05 pm - 6:30 pmCNX-IAD
31h 25m1 stop
Air China Logo
10:00 pm - 9:50 pmIAD-CNX
35h 50m1 stop
$1,211Air China
Find Deal
Sat, Jan 17 - Sun, Feb 15
Austrian Airlines Logo
10:10 am - 2:40 pmCNX-IAD
40h 30m2 stops
Austrian Airlines Logo
6:00 pm - 9:00 pmIAD-CNX
39h 00m2 stops
$1,219Austrian Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 15
EVA Air Logo
11:50 am - 5:55 amCNX-IAD
30h 05m2 stops
EVA Air Logo
7:00 am - 10:35 amIAD-CNX
40h 35m2 stops
$1,233EVA Air
Find Deal
Tue, Mar 3 - Sun, Mar 15
Delta Logo
12:15 am - 11:16 pmCNX-IAD
35h 01m2 stops
Delta Logo
12:50 pm - 10:55 pmIAD-CNX
23h 05m1 stop
$1,237Delta
Find Deal
Tue, Feb 17 - Sun, Feb 22
Korean Air Logo
12:15 am - 9:50 amCNX-IAD
21h 35m1 stop
Korean Air Logo
11:50 am - 10:55 pmIAD-CNX
23h 05m1 stop
$1,250Korean Air
Find Deal
Tue, Mar 3 - Sun, Mar 15
Korean Air Logo
12:15 am - 9:50 amCNX-IAD
21h 35m1 stop
Korean Air Logo
12:50 pm - 10:55 pmIAD-CNX
23h 05m1 stop
$1,483Korean Air
Find Deal
Fri, Nov 7 - Wed, Jan 21
EVA Air Logo
11:50 am - 8:00 pmCNX-DCA
44h 10m2 stops
EVA Air Logo
9:30 am - 10:35 amDCA-CNX
37h 05m2 stops
$1,617EVA Air
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $1,127 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$1,127
Delta
Tue 3/3Sun 3/15
CNX - IAD • 2 stops
Cheapest one-way
$575
Multiple Airlines
Sun 2/15
CNX - IAD • 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 Washington, D.C.!
Booking Insights

KAYAK's insights & trends for Chiang Mai to Washington, D.C. flights

Get data-powered insights and trends into flights from Chiang Mai to Washington, D.C. 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, D.C.?

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

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

Good to know

Cheapest flight$575
Flight from Chiang Mai to Washington Dulles Airport

When to book flights from Chiang Mai to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Chiang Mai to Washington, D.C. 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 Washington, D.C.

  • What is the cheapest flight from Chiang Mai to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Chiang Mai to Washington, D.C. was $575 for a one-way ticket and $1,127 for a round-trip.

  • Do I need a passport to fly between Chiang Mai and Washington, D.C.?

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

  • Which airports will I be using when flying from Chiang Mai to Washington, D.C.?

    When flying out of Chiang Mai you will be using Chiang Mai. You will be landing at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Chiang Mai to Washington, D.C.?

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

  • Which airline alliances offer flights from Chiang Mai to Washington, D.C.?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Chiang Mai and Washington, D.C., with Star Alliance being the most commonly used for this route.

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

    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, D.C..

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. 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 Washington, D.C.?

    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 Washington, D.C. with an airline and back to Chiang Mai 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, D.C.?

    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 Washington, D.C. 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 Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Chiang Mai to Washington, D.C.. 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, D.C.? 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.
7.9
DeltaOverall score based on 7954 reviews
8.5Crew
7.9Entertainment
8.2Boarding
7.9Comfort
7.3Food
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

The airport crew helped a lot, what I didn’t like? We were not informed that we needed to pick our luggage’s, if the crew at the luggage center didn’t tell me I would have been home without my belongings, I was heading out to my next connecting flight while looking for what gate to go to, I asked one of the crews for help, he told me and he also told me to not forget to grab my luggage’s which was chocking, because on my way out the country that wasn’t required, I just hope none of your customers lost their luggage’s because of this.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Everything you need to know for your flight from Chiang Mai to Washington, D.C.

Information on your arrival and departure airports

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