CNX - WAS

$519 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 11/13. 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, 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.

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
$1,132Air 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
$1,140Air China
Find Deal
Sat, Dec 27 - Thu, Jan 1
Multiple Airlines Logo
3:25 pm - 8:20 amCNX-IAD
28h 55m2 stops
Multiple Airlines Logo
8:05 pm - 9:25 amIAD-CNX
25h 20m2 stops
$1,378Multiple Airlines
Find Deal
Thu, Dec 18 - Fri, Jan 2
Multiple Airlines Logo
12:10 pm - 8:20 amCNX-IAD
32h 10m2 stops
Multiple Airlines Logo
8:05 pm - 11:20 amIAD-CNX
27h 15m2 stops
$1,391Multiple Airlines
Find Deal
Wed, Feb 18 - Sun, Feb 22
Qatar Airways Logo
12:10 pm - 3:55 pmCNX-IAD
39h 45m2 stops
Qatar Airways Logo
8:05 pm - 11:20 amIAD-CNX
27h 15m2 stops
$1,404Qatar Airways
Find Deal
Wed, Feb 18 - Sun, Feb 22
Qatar Airways Logo
10:10 am - 3:55 pmCNX-IAD
41h 45m2 stops
Qatar Airways Logo
8:05 pm - 1:45 pmIAD-CNX
29h 40m2 stops
$1,414Qatar Airways
Find Deal
Wed, Dec 17 - Fri, Jan 2
Delta Logo
12:15 am - 11:27 pmCNX-IAD
35h 12m2 stops
Delta Logo
7:05 am - 10:55 pmIAD-CNX
27h 50m2 stops
$1,461Delta
Find Deal
Sat, Dec 27 - Thu, Jan 1
Etihad Airways Logo
8:50 am - 9:05 amCNX-IAD
36h 15m1 stop
Etihad Airways Logo
2:35 pm - 6:05 amIAD-CNX
27h 30m1 stop
$1,547Etihad Airways
Find Deal
Sat, Dec 27 - Thu, Jan 1
Etihad Airways Logo
8:50 am - 9:05 amCNX-IAD
36h 15m1 stop
Etihad Airways Logo
2:35 pm - 6:05 amIAD-CNX
27h 30m1 stop
$1,550Etihad Airways
Find Deal
Wed, Dec 17 - Fri, Jan 2
Delta Logo
12:15 am - 12:12 amCNX-IAD
35h 57m2 stops
Delta Logo
11:50 am - 10:55 pmIAD-CNX
23h 05m1 stop
$1,696Delta
Find Deal

Everything you should know

Top airlines
Air China
Cheapest • from $1,132 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$1,132
Air China
Thu 12/18Fri 1/2
CNX - IAD • 1 stop
Cheapest one-way
$519
Multiple Airlines
Thu 11/13
CNX - IAD • 3 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$519
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 $519 for a one-way ticket and $1,132 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.

  • 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 7992 reviews
7.9Comfort
7.9Entertainment
7.3Food
8.5Crew
8.2Boarding
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Seats comfortable, service and food very mediocre, staff not very attentive, worse than many other our flights with Delta.

Overall good experience; however, there was one flight attendant who was rather rough compared to everyone else. Everything else was good: entertainment, food. Delta keeps on delivering! Thank you!

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

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

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