HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Reagan-National

$670+ Cheap flights from Chiang Mai (CNX) to Reagan-National (DCA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — DCA
dez 20 — dez 271
sáb 12/20
sáb 12/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chiang Mai to Reagan-National with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Chiang Mai to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Reagan-National (DCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated novembro 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,338
(Gurufare)

One-way from

$670
(Delta)
Provider with most accurate pricing for Chiang Mai-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chiang Mai-Washington, D.C. (WAS) flights.
Search Deals
From Chiang Mai to Washington, D.C. Reagan-National
Search Deals
One-way flight from Chiang Mai to Washington, D.C. Reagan-National
Search Deals

Find flight deals from Chiang Mai to Reagan-National

Cheapest flights from Chiang Mai to Reagan-National
Explore the most affordable flight options available from Chiang Mai to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on novembro 20, 2025.

This Gurufare deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/2311:50 amCNX - DCA
2 stops44h 49mMultiple Airlines
ter 1/69:59 amDCA - CNX
2 stops60h 36mMultiple Airlines
Deal found 11/18$1,338
This Delta deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 12/2212:15 amCNX - DCA
2 stops28h 25mDelta
ter 1/610:05 pmDCA - CNX
2 stops36h 50mDelta
Deal found 11/18$1,461
This KAYAK deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/2411:50 amCNX - DCA
2 stops41h 56mMultiple Airlines
qui 12/255:00 pmDCA - CNX
2 stops29h 35mMultiple Airlines
Deal found 11/18$1,699
This KAYAK deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 11/2311:50 amCNX - DCA
2 stops41h 56mMultiple Airlines
qui 12/255:00 pmDCA - CNX
2 stops29h 35mMultiple Airlines
Deal found 11/18$1,730
This KAYAK deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 11/2311:50 amCNX - DCA
2 stops41h 56mMultiple Airlines
sex 12/265:00 pmDCA - CNX
2 stops29h 35mMultiple Airlines
Deal found 11/18$1,861
This KAYAK deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/2411:50 amCNX - DCA
2 stops41h 56mMultiple Airlines
sex 12/268:00 amDCA - CNX
2 stops38h 35mMultiple Airlines
Deal found 11/18$1,864
This Ovago deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 11/254:55 pmCNX - DCA
2 stops39h 47mMultiple Airlines
qui 12/258:00 amDCA - CNX
2 stops45h 00mMultiple Airlines
Deal found 11/18$2,096
This Delta deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 11/2612:15 amCNX - DCA
2 stops33h 00mDelta
sáb 12/276:00 amDCA - CNX
2 stops28h 55mDelta
Deal found 11/18$2,135
This Delta deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 11/2212:15 amCNX - DCA
2 stops26h 20mDelta
qui 12/255:00 pmDCA - CNX
2 stops41h 55mDelta
Deal found 11/18$2,182
This Korean Air deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 11/2012:15 amCNX - DCA
2 stops23h 26mKorean Air
qui 12/255:42 pmDCA - CNX
2 stops41h 13mKorean Air
Deal found 11/18$2,336

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chiang Mai to Reagan-National that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated novembro 20, 2025.
Use the filters below to find and compare flights from Chiang Mai to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Chiang Mai

Fly to

Reagan-National

Route

Depart

Return

Price

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

ter 12/23

11:50 am-8:39 pm

2 stops44h 49m

Washington, D.C. Reagan-National

ter 1/6

9:59 am-10:35 am

2 stops60h 36m

$1,338

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

ter 2/17

12:15 am-9:36 pm

2 stops33h 21m

Washington, D.C. Reagan-National

dom 2/22

7:00 am-10:55 pm

2 stops27h 55m

$2,927

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

qui 11/27

12:15 am-11:31 pm

2 stops35h 16m

$670

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

qua 11/26

12:15 am-11:39 am

2 stops47h 24m

$670

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

sex 1/30

11:25 am-5:56 pm

2 stops42h 31m

$724

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

qui 1/29

12:15 am-1:53 pm

2 stops25h 38m

$724

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

ter 11/25

4:55 pm-5:46 pm

2 stops36h 51m

$744

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

qui 11/27

11:25 am-4:06 pm

2 stops40h 41m

$754

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Best time to book a flight from Chiang Mai to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Chiang Mai with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Chiang Mai to Washington, D.C. Reagan-National?

    Located just 1.9 mi from the city center, Chiang Mai is the airport most travelers will use when flying to Washington, D.C. Reagan-National from Chiang Mai. Booking flights from Chiang Mai (CNX) to Washington, D.C. Reagan-National should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Reagan-National from 0 different airlines.

  • How long is the flight from Chiang Mai to Washington, D.C. Reagan-National Airport?

    There are many flights that can get you from Chiang Mai to Washington, D.C. Reagan-National Airport in 33h 21m. Fly via Delta to get the fastest option. There are 8441 mi between Chiang Mai and Washington, D.C. Reagan-National Airport.

  • Can I find deals for flights from Chiang Mai to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Chiang Mai to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chiang Mai to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Reagan-National.

  • Can I find deals for business class flights from Chiang Mai to Reagan-National?

    Yes. Cheapflights offers flight deals from Chiang Mai to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chiang Mai to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
Suvarnabhumi to Dulles Intl flights
Suvarnabhumi to Baltimore flights
Suvarnabhumi to Reagan-National flights
Chiang Mai to Dulles Intl flights
Chiang Mai to Baltimore flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.