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

For as low as $1,118, Delta can have you in Chiang Mai from Washington, D.C. in 36h 36m. Airlines will cover a distance of 8441 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), and Delta ($798) 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.

In terms of precipitation, rainfall in Chiang Mai ranges from 0.0 - 9.8 inches per month. September is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Chiang Mai when rainfall is around 0.0 in.

If weather is an important factor for your trip to Chiang Mai, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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.

What is the cheapest time of day to fly from WAS to CNX?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Chiang Mai as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C.-Chiang Mai flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Washington, D.C.-Chiang Mai flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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.

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. 2 airlines have flights to Chiang Mai from Washington, D.C. on a regular basis.

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.

$491+ Flights from Washington, D.C. to Chiang Mai

Q: How much does it cost to fly round-trip from Washington, D.C. to Chiang Mai?

Airfare is below average for this route at the moment. Washington, D.C. to Chiang Mai flights typically cost between $1,094 and $1,128 in March. The cheapest round-trip price found within the last 3 days was $896 on Etihad Airways (Mar 13-Mar 28).

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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 December 28, 2025.

Mon 12/296:43 pmIAD - CNX

2 stops27h 52mMultiple Airlines

Fri 1/1611:50 amCNX - IAD

2 stops40h 26mMultiple Airlines

Deal found 12/27

$2,061

Mon 12/298:05 pmIAD - CNX

2 stops29h 40mMultiple Airlines

Wed 12/319:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 12/25

$2,348

Fri 12/2610:55 pmIAD - CNX

2 stops34h 05mMultiple Airlines

Fri 1/3010:10 amCNX - IAD

2 stops40h 30mMultiple Airlines

Deal found 12/26

$2,506

Mon 12/2911:45 amBWI - CNX

3 stops35h 35mMultiple Airlines

Wed 12/319:40 pmCNX - BWI

3 stops35h 46mMultiple Airlines

Deal found 12/25

$5,477

Mon 12/298:05 pmIAD - CNX

2 stops27h 20mMalaysia Airlines

Fri 1/1612:10 pmCNX - IAD

3 stops39h 45mMalaysia Airlines

Deal found 12/27

$5,803

Fri 12/262:35 pmIAD - CNX

1 stop27h 30mEtihad Airways

Thu 1/110:10 amCNX - IAD

2 stops34h 55mEtihad Airways

Deal found 12/25

$7,744

Fri 12/2611:10 amIAD - CNX

2 stops34h 15mMultiple Airlines

Thu 1/12:50 pmCNX - IAD

2 stops29h 30mMultiple Airlines

Deal found 12/25

$8,060

Fri 12/266:50 pmDCA - CNX

2 stops27h 45mMultiple Airlines

Thu 1/14:25 pmCNX - DCA

3 stops37h 40mMultiple Airlines

Deal found 12/25

$13,560

Best flights from Washington, D.C. to Chiang Mai
Discover carefully curated flight deals from Washington, D.C. to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

Wed 2/410:40 amIAD - CNX

2 stops24h 55mMultiple Airlines

Wed 2/255:20 pmCNX - IAD

2 stops51h 00mMultiple Airlines

Deal found 12/24

$1,018

Sun 2/155:13 pmIAD - CNX

2 stops41h 42mDelta

Sun 3/2212:15 amCNX - IAD

2 stops34h 34mDelta

Deal found 12/25

$1,109

Mon 3/29:59 amDCA - CNX

2 stops36h 36mEVA Air

Mon 4/1311:35 amCNX - DCA

2 stops43h 25mEVA Air

Deal found 12/26

$1,118

Thu 3/263:35 pmIAD - CNX

1 stop27h 35mEtihad Airways

Sun 4/59:30 amCNX - IAD

1 stop35h 15mEtihad Airways

Deal found 12/27

$1,216

Mon 3/26:27 pmIAD - CNX

2 stops27h 58mMultiple Airlines

Mon 4/1311:20 amCNX - IAD

2 stops29h 20mMultiple Airlines

Deal found 12/27

$1,082

Tue 1/209:59 amDCA - CNX

2 stops36h 36mEVA Air

Wed 2/411:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/26

$1,126

Mon 1/197:49 pmIAD - CNX

2 stops39h 06mDelta

Tue 2/312:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 12/26

$1,130

Mon 3/166:27 pmIAD - CNX

2 stops28h 58mMultiple Airlines

Fri 4/1711:20 amCNX - IAD

2 stops38h 45mMultiple Airlines

Deal found 12/25

$1,090

Fri 3/133:35 pmIAD - CNX

1 stop27h 35mEtihad Airways

Sat 3/288:50 amCNX - IAD

1 stop35h 55mEtihad Airways

Deal found 12/26

$1,236

Sun 1/187:49 pmIAD - CNX

2 stops39h 06mDelta

Tue 2/312:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 12/26

$1,130

Wed 1/216:00 amBWI - CNX

3 stops39h 25mJapan Airlines

Wed 2/49:40 pmCNX - BWI

3 stops38h 12mJapan Airlines

Deal found 12/26

$2,743

Fri 1/2311:50 amIAD - CNX

1 stop23h 05mDelta

Thu 2/512:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 12/26

$1,144

Wed 1/215:01 pmDCA - CNX

2 stops29h 34mEVA Air

Wed 2/411:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/27

$1,287

Thu 1/86:56 pmDCA - CNX

2 stops51h 39mMultiple Airlines

Tue 6/1611:35 amCNX - DCA

2 stops43h 27mMultiple Airlines

Deal found 12/26

$1,204

Mon 1/197:49 pmIAD - CNX

2 stops39h 06mDelta

Thu 2/512:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 12/26

$1,145

Sat 3/286:41 pmDCA - CNX

2 stops28h 44mEVA Air

Thu 4/911:35 amCNX - DCA

2 stops43h 25mEVA Air

Deal found 12/25

$1,397

Wed 1/146:56 pmDCA - CNX

2 stops51h 39mEVA Air

Thu 1/2211:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/26

$1,431

Sat 2/145:00 pmDCA - CNX

2 stops35h 35mMultiple Airlines

Wed 3/411:25 amCNX - DCA

2 stops42h 34mMultiple Airlines

Deal found 12/26

$1,491

Sat 2/146:46 pmBWI - CNX

2 stops33h 49mMultiple Airlines

Wed 3/411:25 amCNX - BWI

2 stops37h 30mMultiple Airlines

Deal found 12/27

$1,520

Tue 1/68:00 amDCA - CNX

2 stops38h 25mMultiple Airlines

Mon 1/125:35 pmCNX - DCA

2 stops40h 24mMultiple Airlines

Deal found 12/27

$1,562

Fri 3/276:15 amBWI - CNX

3 stops41h 05mMultiple Airlines

Sat 4/411:20 amCNX - BWI

2 stops36h 45mMultiple Airlines

Deal found 12/27

$1,574

Wed 1/218:20 amBWI - CNX

2 stops38h 05mMultiple Airlines

Wed 2/411:25 amCNX - BWI

2 stops30h 05mMultiple Airlines

Deal found 12/27

$1,587

Sun 6/147:00 amBWI - CNX

2 stops40h 20mMultiple Airlines

Sat 7/411:20 amCNX - BWI

2 stops36h 40mMultiple Airlines

Deal found 12/26

$2,631

Sat 3/289:30 pmBWI - CNX

2 stops53h 10mMultiple Airlines

Thu 4/92:40 pmCNX - BWI

2 stops40h 00mMultiple Airlines

Deal found 12/25

$2,893

Thu 1/88:35 pmBWI - CNX

2 stops50h 50mMultiple Airlines

Tue 6/162:40 pmCNX - BWI

2 stops40h 00mMultiple Airlines

Deal found 12/27

$2,980

Last-minute flights from Washington, D.C. to Chiang Mai
Discover last-minute flight deals from Washington, D.C. to Chiang Mai. Data last updated December 28, 2025 and is based on user searches.

Sun 1/187:49 pmIAD - CNX

2 stops39h 06mDelta

Tue 2/312:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 12/26

$1,130

Mon 1/198:05 pmIAD - CNX

2 stops36h 55mQatar Airways

Tue 2/39:40 pmCNX - IAD

2 stops30h 15mQatar Airways

Deal found 12/26

$1,050

Mon 1/198:05 pmIAD - CNX

2 stops36h 55mQatar Airways

Thu 2/59:40 pmCNX - IAD

2 stops54h 15mQatar Airways

Deal found 12/26

$1,117

Tue 1/2011:10 amIAD - CNX

2 stops38h 35mMultiple Airlines

Wed 2/410:10 amCNX - IAD

2 stops35h 00mMultiple Airlines

Deal found 12/26

$951

Tue 1/2010:00 pmIAD - CNX

1 stop35h 50mAir China

Mon 2/211:05 pmCNX - IAD

1 stop31h 25mAir China

Deal found 12/26

$1,016

Tue 1/209:59 amDCA - CNX

2 stops36h 36mEVA Air

Wed 2/411:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 12/26

$1,126

Wed 1/2111:10 amIAD - CNX

2 stops36h 10mMultiple Airlines

Tue 2/35:05 pmCNX - IAD

2 stops28h 05mMultiple Airlines

Deal found 12/26

$917

Wed 1/2111:10 amIAD - CNX

2 stops38h 35mMultiple Airlines

Wed 2/45:05 pmCNX - IAD

2 stops28h 05mMultiple Airlines

Deal found 12/27

$1,042

Wed 1/2111:10 amIAD - CNX

2 stops34h 15mMultiple Airlines

Thu 2/53:25 pmCNX - IAD

2 stops29h 45mMultiple Airlines

Deal found 12/26

$1,082

Fri 1/2310:00 pmIAD - CNX

1 stop35h 50mAir China

Mon 2/211:05 pmCNX - IAD

1 stop31h 25mAir China

Deal found 12/26

$1,043

Fri 1/2311:50 amIAD - CNX

1 stop23h 05mDelta

Tue 2/312:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 12/26

$1,129

Fri 1/2311:50 amIAD - CNX

1 stop23h 05mDelta

Thu 2/512:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 12/26

$1,144

One-way flights from Washington, D.C. to Chiang Mai
Search for one-way flight options from Washington, D.C. to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated December 28, 2025.

Sat 2/282:35 pmIAD - CNX

2 stops39h 10mMultiple Airlines

Deal found 12/26

$491

Sat 2/286:15 amBWI - CNX

3 stops53h 30mMultiple Airlines

Deal found 12/26

$494

Sat 2/149:15 pmIAD - CNX

3 stops52h 35mMultiple Airlines

Deal found 12/25

$499

Tue 1/136:04 pmIAD - CNX

2 stops33h 51mSTARLUX Airlines

Deal found 12/25

$511

Tue 2/36:04 pmIAD - CNX

2 stops33h 51mSTARLUX Airlines

Deal found 12/26

$536

Tue 2/36:05 amDCA - CNX

2 stops28h 50mDelta

Deal found 12/26

$566

Tue 1/139:59 amDCA - CNX

2 stops41h 56mMultiple Airlines

Deal found 12/27

$571

Fri 2/610:40 amIAD - CNX

2 stops45h 45mMultiple Airlines

Deal found 12/27

$575

Tue 2/36:00 amBWI - CNX

2 stops28h 55mDelta

Deal found 12/26

$586

Fri 5/14:30 pmIAD - CNX

2 stops30h 50mMultiple Airlines

Deal found 12/25

$604

Sat 2/285:00 pmDCA - CNX

2 stops29h 35mMultiple Airlines

Deal found 12/26

$617

Fri 5/18:20 pmIAD - CNX

2 stops51h 55mQatar Airways

Deal found 12/25

$626

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

Most accurate provider	Justfly.com 3 stars
Most trusted provider	Justfly.com 3 stars
Round-trip from	$896 (FlightHub)
One-way from	$491 (Trip.com)
Popular in	April
Cheapest in	January
Average price	$1,643

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 ($265 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 December 2025

Search Deals

Cheapflights Fare Finder

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

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 2/4

10:40 am-11:35 pm

2 stops24h 55m

Chiang Mai

Wed 2/25

5:20 pm-8:20 am

2 stops51h 00m

$1,018

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 3/2

6:27 pm-10:25 am

2 stops27h 58m

Chiang Mai

Mon 4/13

11:20 am-5:40 am

2 stops29h 20m

$1,082

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 3/16

6:27 pm-10:25 am

2 stops28h 58m

Chiang Mai

Fri 4/17

11:20 am-3:05 pm

2 stops38h 45m

$1,090

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 2/15

5:13 pm-10:55 pm

2 stops41h 42m

Chiang Mai

Sun 3/22

12:15 am-11:49 pm

2 stops34h 34m

$1,109

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 3/2

9:59 am-10:35 am

2 stops36h 36m

Chiang Mai

Mon 4/13

11:35 am-8:00 pm

2 stops43h 25m

$1,118

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 1/20

9:59 am-10:35 am

2 stops36h 36m

Chiang Mai

Wed 2/4

11:50 am-8:00 pm

2 stops44h 10m

$1,126

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 1/19

7:49 pm-10:55 pm

2 stops39h 06m

Chiang Mai

Tue 2/3

12:15 am-9:50 am

1 stop21h 35m

$1,130

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 1/18

7:49 pm-10:55 pm

2 stops39h 06m

Chiang Mai

Tue 2/3

12:15 am-9:50 am

1 stop21h 35m

$1,130

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 1/23

11:50 am-10:55 pm

1 stop23h 05m

Chiang Mai

Thu 2/5

12:15 am-9:50 am

1 stop21h 35m

$1,144

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 1/19

7:49 pm-10:55 pm

2 stops39h 06m

Chiang Mai

Thu 2/5

12:15 am-9:50 am

1 stop21h 35m

$1,145

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 46 results

...

Compare providers for flights from Washington, D.C. to Chiang Mai

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 December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Justfly.com	Price Accuracy3 stars	Trust 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 Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Washington, D.C.-Chiang Mai flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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

How much does it cost to fly round-trip from Washington, D.C. to Chiang Mai?

Reviews of airlines servicing Chiang Mai

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

8.5

Very good

1,184 reviews

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

8.5

Very good

1,184 reviews

Korean Air

8.5

Very good

1,184 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Delta

7.9

Good

8,016 reviews

Korean Air

8.5

Very good

1,184 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

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. 2 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, Delta can have you in Chiang Mai from Washington, D.C. in 36h 36m. Airlines will cover a distance of 8441 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), and Delta ($798) 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

Top 2 airlines flying from Washington, D.C. to Chiang Mai

Airline	Cheapest	Average	Flexibility	On-time
Korean Air	Cheapest$743	Average$1,584	FlexibilityNo cancel fee	On-time81%
Delta	Cheapest$798	Average$1,135	FlexibilityNo cancel fee	On-timeN/A

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$491+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Chiang Mai with Cheapflights

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

Cheapest flights from Washington, D.C. to Chiang MaiExplore 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 December 28, 2025.

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 December 28, 2025.

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Chiang Mai that are best for you.

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 December.

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.

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

How much does it cost to fly round-trip from Washington, D.C. to Chiang Mai?

Reviews of airlines servicing Chiang Mai

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.

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.?

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

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

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

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

How can I 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?

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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.

Top 2 airlines flying from Washington, D.C. to Chiang Mai

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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 December 28, 2025.