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Chiang Mai

$508+ Cheap flights from Washington, D.C. (WAS) to Chiang Mai (CNX)

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — CNX
Mar 31 — Apr 71
Tue 3/31
Tue 4/7
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Chiang Mai

Cheapest flights from Washington, D.C. to Chiang Mai
Explore the most affordable flight options available from Washington, D.C. to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:10 pm
IAD
-
CNX
2 stops31h 10m
Etihad Airways
Sat 5/99:30 am
CNX
-
IAD
1 stop35h 15m
Etihad Airways
Deal found 2/25$937
This SmartFares deal was found by Cheapflights users on 2/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:10 pm
IAD
-
CNX
2 stops31h 10m
Etihad Airways
Sat 5/169:30 am
CNX
-
IAD
1 stop35h 15m
Etihad Airways
Deal found 2/27$940
This IEagle deal was found by Cheapflights users on 2/28. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:11 pm
IAD
-
CNX
2 stops28h 09m
Multiple Airlines
Tue 4/2111:20 am
CNX
-
IAD
2 stops29h 20m
Multiple Airlines
Deal found 2/28$984
This oojo deal was found by Cheapflights users on 2/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:15 am
IAD
-
CNX
1 stop22h 10m
EVA Air
Fri 10/211:35 am
CNX
-
IAD
1 stop21h 25m
EVA Air
Deal found 2/26$987
This FlightHub deal was found by Cheapflights users on 2/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:15 am
IAD
-
CNX
1 stop22h 10m
EVA Air
Tue 11/312:10 pm
CNX
-
IAD
2 stops44h 45m
EVA Air
Deal found 2/28$988
This Gurufare deal was found by Cheapflights users on 2/27. 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.
Tue 4/217:11 pm
IAD
-
CNX
2 stops34h 09m
Multiple Airlines
Sat 5/95:20 pm
CNX
-
IAD
2 stops47h 30m
Multiple Airlines
Deal found 2/27$1,004
This IEagle deal was found by Cheapflights users on 2/28. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:38 pm
IAD
-
CNX
2 stops29h 42m
Multiple Airlines
Tue 11/311:25 am
CNX
-
IAD
2 stops32h 03m
Multiple Airlines
Deal found 2/28$1,010
This Gurufare deal was found by Cheapflights users on 2/25. 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.
Thu 11/55:38 pm
IAD
-
CNX
2 stops28h 57m
Multiple Airlines
Mon 11/1611:50 am
CNX
-
IAD
1 stop21h 05m
Multiple Airlines
Deal found 2/25$1,019
This IEagle deal was found by Cheapflights users on 2/28. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:00 am
IAD
-
CNX
2 stops37h 35m
Multiple Airlines
Tue 12/112:10 pm
CNX
-
IAD
2 stops44h 45m
Multiple Airlines
Deal found 2/28$1,027
This SmartFares deal was found by Cheapflights users on 2/26. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:04 pm
DCA
-
CNX
2 stops30h 16m
Multiple Airlines
Fri 10/211:20 am
CNX
-
DCA
2 stops43h 40m
Multiple Airlines
Deal found 2/26$1,042
This China Airlines deal was found by Cheapflights users on 2/27. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:11 pm
BWI
-
CNX
2 stops28h 14m
Multiple Airlines
Mon 11/1611:25 am
CNX
-
BWI
2 stops30h 56m
Multiple Airlines
Deal found 2/27$1,068
This oojo deal was found by Cheapflights users on 2/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:11 pm
BWI
-
CNX
2 stops28h 14m
China Airlines
Mon 11/1611:25 am
CNX
-
BWI
2 stops30h 56m
China Airlines
Deal found 2/25$1,071

Find flight deals from Washington, D.C. to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Chiang Mai (CNX). 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 March 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$937
(Kiwi.com)

One-way from

$508
(Trip.com)

Popular in

April

Cheapest in

January

Average price

$1,230
Provider with most accurate pricing for Washington, D.C. (WAS)-Chiang Mai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Chiang Mai flights.
Search Deals
From Washington, D.C. (WAS) to Chiang Mai
Search Deals
One-way flight from Washington, D.C. (WAS) to Chiang Mai
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($272 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($94 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Chiang Mai 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 March 1, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 4/14

5:00 pm-10:20 am

2 stops30h 20m

Chiang Mai

Tue 4/21

11:20 am-5:59 pm

2 stops41h 39m

$1,077

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 3/13

3:35 pm-11:20 am

2 stops32h 45m

Chiang Mai

Sat 3/28

8:50 am-9:45 am

1 stop35h 55m

$1,118

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 4/13

6:41 pm-10:25 am

2 stops28h 44m

Chiang Mai

Mon 4/20

11:35 am-5:41 pm

2 stops41h 06m

$1,144

BaltimoreChiang Mai

BWI - CNX

BWICNX

Baltimore/Washington

Fri 5/1

6:30 pm-10:20 am

2 stops28h 50m

Chiang Mai

Sat 5/9

11:20 am-1:30 pm

2 stops37h 10m

$1,186

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Fri 5/1

6:59 pm-10:20 am

2 stops28h 21m

Chiang Mai

Sat 5/16

11:20 am-8:06 pm

2 stops43h 46m

$1,219

BaltimoreChiang Mai

BWI - CNX

BWICNX

Baltimore/Washington

Wed 4/29

3:10 pm-10:20 am

3 stops32h 10m

Chiang Mai

Thu 5/7

11:20 am-5:44 am

2 stops29h 24m

$1,411

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 3/30

10:55 am-1:45 pm

2 stops39h 50m

Chiang Mai

Mon 4/6

10:10 am-8:40 am

2 stops57h 30m

$1,477

BaltimoreChiang Mai

BWI - CNX

BWICNX

Baltimore/Washington

Wed 4/1

6:10 pm-10:20 am

2 stops29h 10m

Chiang Mai

Fri 4/17

11:20 am-11:55 pm

2 stops23h 35m

$1,544

BaltimoreChiang Mai

BWI - CNX

BWICNX

Baltimore/Washington

Thu 3/12

6:15 am-10:25 am

3 stops41h 10m

Chiang Mai

Sat 3/21

11:25 am-1:05 pm

2 stops36h 40m

$1,560

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Fri 4/3

8:40 pm-10:25 am

2 stops26h 45m

Chiang Mai

Tue 4/21

7:25 pm-7:53 pm

3 stops35h 28m

$1,583

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/25

Showing 1-10 of 32 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Chiang Mai in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Chiang Mai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Chiang Mai
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chiang Mai. Reviews last updated March 1, 2026.
See what other customers who have flown with Korean Air and Delta from Washington, D.C. to Chiang Mai have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,195 reviews

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,195 reviews
Korean Air
8.4
Very good
1,195 reviews

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
8,240 reviews
Korean Air
8.4
Very good
1,195 reviews

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Chiang Mai. 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 into for flights to Chiang Mai from Washington, D.C.?

    For a flight from Washington, D.C. to Chiang Mai, you will be flying into Chiang Mai. Chiang Mai (CNX) is just 1.9 mi from the center of the city. Chiang Mai is the only Chiang Mai airport and it handles 0 inbound flights from Washington, D.C. per day. 3 airlines have flights to Chiang Mai from Washington, D.C. on a regular basis.

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

    For as low as $1,118, Etihad Airways can have you in Chiang Mai from Washington, D.C. in 32h 45m. Airlines will cover a distance of 8436 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. to Chiang Mai round-trip?

    According to our current data, Korean Air ($673), Delta ($798), and EVA Air ($1,040) offers the cheapest pricing from Washington, D.C. to Chiang Mai. Korean Air is 53% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular routes from Washington, D.C. to Chiang Mai?

    When deciding which route to take from Washington, D.C. to Chiang Mai consider Washington, D.C. Dulles Intl - Chiang Mai, Washington, D.C. Reagan-National - Chiang Mai or Baltimore/Washington - Chiang Mai as they are the most popular.

  • Can I find deals for flights from Washington, D.C. to Chiang Mai that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Chiang Mai?

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

  • Can I find deals for business class flights from Washington, D.C. to Chiang Mai?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Chiang Mai 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Chiang Mai

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

Top 3 airlines flying from Washington, D.C. to Chiang Mai

Discover the top 3 airlines that operate flights from Washington, D.C. to Chiang Mai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$673Average$1,412FlexibilityNo cancel feeOn-time81%
DeltaCheapest$798Average$1,135FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$1,040Average$1,355FlexibilityNo cancel feeOn-time74%

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