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

For as low as $1,279, Delta can have you in Chiang Mai from Washington, D.C. in 29h 30m. 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 ($743), and Delta ($798) offers the cheapest pricing from Washington, D.C. to Chiang Mai. Korean Air is 50% 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.

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.

$441+ Flights from Washington, D.C. to Chiang Mai

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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

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Cheap 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	$915 (oojo)
One-way from	$441 (Trip.com)
Popular in	April
Cheapest in	January
Average price	$1,787

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. 13% potential increase in price ($227 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($89 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2025

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Find 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 November 26, 2025.

Mon 11/2411:50 amIAD - CNX

1 stop23h 05mKorean Air

Tue 12/212:15 amCNX - IAD

2 stops35h 57mKorean Air

Deal found 11/24

$1,252

Tue 12/27:34 amIAD - CNX

2 stops39h 01mMultiple Airlines

Tue 1/1311:50 amCNX - IAD

2 stops40h 36mMultiple Airlines

Deal found 11/25

$1,430

Tue 12/26:59 pmDCA - CNX

2 stops51h 36mEVA Air

Tue 1/1311:50 amCNX - DCA

2 stops42h 06mEVA Air

Deal found 11/25

$1,438

Tue 12/27:00 amBWI - CNX

2 stops39h 35mEVA Air

Tue 1/1311:50 amCNX - BWI

2 stops42h 24mEVA Air

Deal found 11/25

$1,466

Tue 12/210:00 pmIAD - CNX

1 stop35h 50mAir China

Mon 1/1211:05 pmCNX - IAD

1 stop31h 25mAir China

Deal found 11/25

$1,607

Tue 12/28:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Wed 1/149:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 11/25

$1,617

Wed 12/38:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Tue 1/139:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 11/25

$1,668

Mon 12/18:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Wed 1/149:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 11/25

$1,682

Tue 12/27:15 amIAD - CNX

2 stops27h 40mDelta

Mon 1/1212:15 amCNX - IAD

2 stops35h 33mDelta

Deal found 11/25

$1,684

Mon 12/18:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Tue 1/1310:10 amCNX - IAD

2 stops34h 10mMultiple Airlines

Deal found 11/25

$1,688

Wed 12/38:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Mon 1/129:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 11/25

$1,698

Mon 11/2410:30 amIAD - CNX

2 stops36h 50mEmirates

Wed 12/37:45 pmCNX - IAD

2 stops48h 25mEmirates

Deal found 11/24

$1,718

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 November 26, 2025.

Sun 2/155:25 pmIAD - CNX

2 stops41h 30mDelta

Sun 3/2212:15 amCNX - IAD

2 stops34h 34mDelta

Deal found 11/25

$1,083

Tue 5/59:59 amDCA - CNX

2 stops37h 26mMultiple Airlines

Sun 5/1711:35 amCNX - DCA

2 stops43h 25mMultiple Airlines

Deal found 11/24

$1,104

Tue 5/57:00 amBWI - CNX

2 stops40h 25mEVA Air

Sun 5/1711:35 amCNX - BWI

2 stops29h 54mEVA Air

Deal found 11/24

$1,245

Mon 1/59:15 pmIAD - CNX

2 stops29h 30mTurkish Airlines

Sun 1/119:05 pmCNX - IAD

2 stops34h 15mTurkish Airlines

Deal found 11/26

$1,279

Fri 1/236:59 amDCA - CNX

2 stops27h 56mKorean Air

Sun 1/2512:15 amCNX - DCA

2 stops25h 38mKorean Air

Deal found 11/23

$1,453

Mon 1/59:59 amDCA - CNX

2 stops36h 26mChina Airlines

Sun 1/1111:25 amCNX - DCA

2 stops46h 34mChina Airlines

Deal found 11/24

$1,697

Sat 11/2910:30 amIAD - CNX

2 stops39h 15mEmirates

Fri 1/169:40 pmCNX - IAD

2 stops46h 30mEmirates

Deal found 11/25

$1,830

Sun 1/189:59 amDCA - CNX

2 stops60h 36mMultiple Airlines

Sat 2/1411:50 amCNX - DCA

2 stops42h 09mMultiple Airlines

Deal found 11/25

$1,131

Sun 1/1810:05 pmDCA - CNX

2 stops36h 50mDelta

Fri 2/1312:15 amCNX - DCA

2 stops27h 49mDelta

Deal found 11/25

$1,143

Thu 1/156:00 amBWI - CNX

3 stops39h 25mJapan Airlines

Thu 1/2210:10 amCNX - BWI

3 stops43h 42mJapan Airlines

Deal found 11/23

$2,310

Thu 1/159:59 amDCA - CNX

2 stops60h 36mMultiple Airlines

Thu 1/2211:50 amCNX - DCA

2 stops46h 09mMultiple Airlines

Deal found 11/23

$1,157

Sun 1/184:55 pmBWI - CNX

2 stops42h 00mDelta

Fri 2/1312:15 amCNX - BWI

2 stops27h 53mDelta

Deal found 11/25

$1,223

Sun 1/186:04 pmIAD - CNX

2 stops28h 31mMultiple Airlines

Sat 2/1411:50 amCNX - IAD

2 stops41h 30mMultiple Airlines

Deal found 11/25

$1,187

Sun 1/185:59 pmIAD - CNX

2 stops40h 56mDelta

Fri 2/1312:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 11/25

$1,292

Fri 3/276:55 pmBWI - CNX

2 stops28h 30mEVA Air

Mon 4/611:35 amCNX - BWI

2 stops41h 27mEVA Air

Deal found 11/24

$1,577

Fri 1/99:59 amDCA - CNX

2 stops60h 36mMultiple Airlines

Fri 1/1611:50 amCNX - DCA

2 stops42h 06mMultiple Airlines

Deal found 11/25

$1,229

Mon 1/55:00 pmDCA - CNX

2 stops29h 35mEVA Air

Sun 1/1111:50 amCNX - DCA

2 stops44h 10mEVA Air

Deal found 11/26

$1,581

Mon 1/57:00 pmBWI - CNX

2 stops27h 25mChina Airlines

Sun 1/1111:25 amCNX - BWI

2 stops42h 49mChina Airlines

Deal found 11/24

$1,860

Sat 1/109:59 amDCA - CNX

2 stops60h 36mMultiple Airlines

Sat 1/1711:50 amCNX - DCA

2 stops46h 09mMultiple Airlines

Deal found 11/26

$1,283

Fri 1/236:00 amDCA - CNX

2 stops28h 55mDelta

Sun 1/2512:15 amCNX - DCA

2 stops51h 05mDelta

Deal found 11/25

$1,515

Fri 3/276:55 pmBWI - CNX

2 stops28h 30mMultiple Airlines

Sat 4/411:35 amCNX - BWI

2 stops41h 27mMultiple Airlines

Deal found 11/24

$1,433

Tue 5/511:15 amBWI - CNX

3 stops44h 55mMultiple Airlines

Sun 5/1711:05 pmCNX - BWI

2 stops42h 56mMultiple Airlines

Deal found 11/24

$1,879

Sat 1/1011:30 amBWI - CNX

3 stops35h 05mMultiple Airlines

Sat 1/1710:35 amCNX - BWI

3 stops35h 52mMultiple Airlines

Deal found 11/26

$1,992

Sun 1/188:35 pmBWI - CNX

2 stops36h 25mMultiple Airlines

Sat 2/142:50 pmCNX - BWI

2 stops39h 55mMultiple Airlines

Deal found 11/25

$2,433

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 November 26, 2025 and is based on user searches.

Mon 12/18:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Wed 1/149:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 11/25

$1,682

Mon 12/18:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Tue 1/1310:10 amCNX - IAD

2 stops34h 10mMultiple Airlines

Deal found 11/25

$1,688

Mon 12/18:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Mon 1/129:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 11/25

$1,763

Tue 12/27:34 amIAD - CNX

2 stops39h 01mMultiple Airlines

Tue 1/1311:50 amCNX - IAD

2 stops40h 36mMultiple Airlines

Deal found 11/25

$1,430

Tue 12/26:59 pmDCA - CNX

2 stops51h 36mEVA Air

Tue 1/1311:50 amCNX - DCA

2 stops42h 06mEVA Air

Deal found 11/25

$1,438

Tue 12/27:00 amBWI - CNX

2 stops39h 35mEVA Air

Tue 1/1311:50 amCNX - BWI

2 stops42h 24mEVA Air

Deal found 11/25

$1,466

Tue 12/210:00 pmIAD - CNX

1 stop35h 50mAir China

Mon 1/1211:05 pmCNX - IAD

1 stop31h 25mAir China

Deal found 11/25

$1,607

Tue 12/28:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Wed 1/149:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 11/25

$1,617

Tue 12/27:15 amIAD - CNX

2 stops27h 40mDelta

Mon 1/1212:15 amCNX - IAD

2 stops35h 33mDelta

Deal found 11/25

$1,684

Tue 12/210:00 pmIAD - CNX

1 stop35h 50mAir China

Thu 1/1511:05 pmCNX - IAD

1 stop31h 25mAir China

Deal found 11/25

$1,747

Wed 12/38:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Tue 1/139:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 11/25

$1,668

Wed 12/38:05 pmIAD - CNX

2 stops27h 15mMultiple Airlines

Mon 1/129:40 pmCNX - IAD

2 stops30h 15mMultiple Airlines

Deal found 11/25

$1,698

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 November 26, 2025.

Fri 1/232:35 pmIAD - CNX

2 stops43h 45mMultiple Airlines

Deal found 11/26

$441

Fri 2/132:35 pmIAD - CNX

2 stops28h 45mMultiple Airlines

Deal found 11/24

$447

Tue 1/132:35 pmIAD - CNX

3 stops32h 35mMultiple Airlines

Deal found 11/25

$504

Sat 1/242:35 pmIAD - CNX

3 stops29h 20mMultiple Airlines

Deal found 11/23

$512

Sat 1/102:35 pmIAD - CNX

2 stops43h 05mMultiple Airlines

Deal found 11/23

$520

Wed 1/149:59 amDCA - CNX

3 stops42h 51mMultiple Airlines

Deal found 11/24

$522

Tue 2/38:05 pmIAD - CNX

2 stops36h 55mMultiple Airlines

Deal found 11/25

$529

Thu 1/1510:05 amBWI - CNX

3 stops40h 35mMultiple Airlines

Deal found 11/24

$531

Wed 1/142:35 pmIAD - CNX

3 stops44h 15mMultiple Airlines

Deal found 11/24

$534

Tue 2/36:00 amDCA - CNX

2 stops28h 55mKorean Air

Deal found 11/24

$569

Wed 1/147:14 pmBWI - CNX

3 stops54h 46mMultiple Airlines

Deal found 11/24

$602

Thu 1/1510:05 pmDCA - CNX

2 stops36h 50mDelta

Deal found 11/24

$641

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

Sun 2/15

5:25 pm-10:55 pm

2 stops41h 30m

Chiang Mai

Sun 3/22

12:15 am-11:49 pm

2 stops34h 34m

$1,083

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 5/5

9:59 am-10:25 am

2 stops37h 26m

Chiang Mai

Sun 5/17

11:35 am-8:00 pm

2 stops43h 25m

$1,104

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 1/18

9:59 am-10:35 am

2 stops60h 36m

Chiang Mai

Sat 2/14

11:50 am-5:59 pm

2 stops42h 09m

$1,131

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 1/18

10:05 pm-10:55 pm

2 stops36h 50m

Chiang Mai

Fri 2/13

12:15 am-4:04 pm

2 stops27h 49m

$1,143

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Thu 1/15

9:59 am-10:35 am

2 stops60h 36m

Chiang Mai

Thu 1/22

11:50 am-9:59 pm

2 stops46h 09m

$1,157

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 1/18

6:04 pm-10:35 am

2 stops28h 31m

Chiang Mai

Sat 2/14

11:50 am-5:20 pm

2 stops41h 30m

$1,187

BaltimoreChiang Mai

BWI - CNX

BWICNX

Baltimore/Washington

Sun 1/18

4:55 pm-10:55 pm

2 stops42h 00m

Chiang Mai

Fri 2/13

12:15 am-4:08 pm

2 stops27h 53m

$1,223

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Fri 1/9

9:59 am-10:35 am

2 stops60h 36m

Chiang Mai

Fri 1/16

11:50 am-5:56 pm

2 stops42h 06m

$1,229

BaltimoreChiang Mai

BWI - CNX

BWICNX

Baltimore/Washington

Tue 5/5

7:00 am-10:25 am

2 stops40h 25m

Chiang Mai

Sun 5/17

11:35 am-6:29 am

2 stops29h 54m

$1,245

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 1/5

9:15 pm-2:45 pm

2 stops29h 30m

Chiang Mai

Sun 1/11

9:05 pm-7:20 pm

2 stops34h 15m

$1,279

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Showing 1-10 of 45 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 November.

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

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 25% on flights from Washington, D.C. to Chiang Mai by exploring options for tickets in the evening.

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

8.4

Very good

1,172 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

8.4

Very good

1,172 reviews

Korean Air

8.4

Very good

1,172 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Delta

7.9

Good

8,001 reviews

Korean Air

8.4

Very good

1,172 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 $1,279, Delta can have you in Chiang Mai from Washington, D.C. in 29h 30m. 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 ($743), and Delta ($798) offers the cheapest pricing from Washington, D.C. to Chiang Mai. Korean Air is 50% 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$1,597	FlexibilityNo cancel fee	On-time81%
Delta	Cheapest$798	Average$1,135	FlexibilityNo cancel fee	On-timeN/A

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$441+ 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 1/23. 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

1. Tell us where you want to go

2. Select your favorite providers

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

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

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Find 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 November 26, 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 November 26, 2025.

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 November.

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

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

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

Find hourly flight availability from Washington, D.C. to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

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

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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 November 26, 2025.