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

For as low as $1,068, Air China can have you in Chiang Mai from Washington, D.C. in 23h 05m. 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, Baltimore/Washington - Chiang Mai or Washington, D.C. Reagan-National - 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.

$488+ Flights from Washington, D.C. to Chiang Mai

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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	$860 (oojo)
One-way from	$488 (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

Search Deals

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 13, 2025.

Wed 11/129:59 amDCA - CNX

2 stops36h 36mMultiple Airlines

Wed 11/1911:50 amCNX - DCA

2 stops44h 10mMultiple Airlines

Deal found 11/11

$1,074

Wed 11/126:13 pmIAD - CNX

2 stops28h 22mMultiple Airlines

Wed 11/1911:50 amCNX - IAD

2 stops30h 33mMultiple Airlines

Deal found 11/11

$1,107

Wed 11/127:38 amBWI - CNX

2 stops38h 57mMultiple Airlines

Wed 11/1911:50 amCNX - BWI

2 stops42h 26mMultiple Airlines

Deal found 11/11

$1,231

Tue 12/308:05 pmIAD - CNX

2 stops39h 30mMultiple Airlines

Thu 1/2210:25 pmCNX - IAD

2 stops53h 30mMultiple Airlines

Deal found 11/12

$1,307

Wed 12/3110:40 amIAD - CNX

2 stops58h 45mQatar Airways

Tue 1/209:40 pmCNX - IAD

2 stops30h 15mQatar Airways

Deal found 11/12

$1,422

Wed 12/3110:40 amIAD - CNX

2 stops58h 45mQatar Airways

Wed 1/219:40 pmCNX - IAD

2 stops54h 15mQatar Airways

Deal found 11/12

$1,425

Tue 12/307:04 amBWI - CNX

2 stops39h 31mMultiple Airlines

Thu 1/2211:50 amCNX - BWI

2 stops42h 24mMultiple Airlines

Deal found 11/12

$1,449

Wed 11/127:15 amIAD - CNX

2 stops27h 40mDelta

Tue 11/1812:15 amCNX - IAD

2 stops30h 53mDelta

Deal found 11/11

$1,459

Wed 12/3110:40 amIAD - CNX

2 stops58h 45mQatar Airways

Sat 1/249:40 pmCNX - IAD

2 stops54h 15mQatar Airways

Deal found 11/12

$1,465

Tue 12/308:05 pmIAD - CNX

2 stops51h 20mQatar Airways

Tue 1/209:40 pmCNX - IAD

2 stops30h 15mQatar Airways

Deal found 11/12

$1,493

Tue 12/308:05 pmIAD - CNX

2 stops51h 20mQatar Airways

Fri 1/239:40 pmCNX - IAD

2 stops54h 15mQatar Airways

Deal found 11/12

$1,495

Sun 11/1610:25 amBWI - CNX

3 stops36h 00mMultiple Airlines

Tue 11/184:55 pmCNX - BWI

3 stops34h 55mMultiple Airlines

Deal found 11/12

$1,501

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 13, 2025.

Fri 1/910:00 pmIAD - CNX

1 stop35h 50mAir China

Mon 2/1611:05 pmCNX - IAD

1 stop31h 25mAir China

Deal found 11/12

$1,022

Wed 1/2111:50 amIAD - CNX

1 stop23h 05mKorean Air

Sun 2/812:15 amCNX - IAD

1 stop21h 35mKorean Air

Deal found 11/12

$1,068

Fri 1/910:40 amIAD - CNX

2 stops34h 45mQatar Airways

Wed 2/189:40 pmCNX - IAD

2 stops30h 15mQatar Airways

Deal found 11/12

$1,083

Wed 1/219:59 amDCA - CNX

2 stops36h 36mEVA Air

Mon 2/911:50 amCNX - DCA

2 stops42h 06mEVA Air

Deal found 11/12

$1,085

Mon 2/25:01 pmDCA - CNX

2 stops29h 24mChina Airlines

Thu 2/1211:25 amCNX - DCA

2 stops46h 34mChina Airlines

Deal found 11/12

$1,088

Wed 1/212:35 pmIAD - CNX

3 stops35h 20mMultiple Airlines

Mon 2/910:30 amCNX - IAD

3 stops34h 35mMultiple Airlines

Deal found 11/12

$1,110

Wed 1/216:00 amIAD - CNX

2 stops28h 55mDelta

Sun 2/812:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 11/12

$1,119

Mon 2/96:00 amBWI - CNX

3 stops39h 25mJapan Airlines

Wed 2/189:40 pmCNX - BWI

3 stops36h 07mJapan Airlines

Deal found 11/12

$1,889

Wed 1/2111:50 amIAD - CNX

1 stop23h 05mKorean Air

Sat 2/1412:15 amCNX - IAD

1 stop21h 35mKorean Air

Deal found 11/12

$1,083

Wed 1/219:59 amDCA - CNX

2 stops36h 26mChina Airlines

Sun 2/1511:25 amCNX - DCA

2 stops42h 34mChina Airlines

Deal found 11/12

$1,089

Fri 1/910:40 amIAD - CNX

2 stops34h 45mQatar Airways

Tue 2/1710:10 amCNX - IAD

2 stops34h 10mQatar Airways

Deal found 11/12

$1,097

Mon 2/22:35 pmIAD - CNX

3 stops32h 50mMultiple Airlines

Thu 2/129:40 pmCNX - IAD

3 stops47h 25mMultiple Airlines

Deal found 11/12

$1,124

Wed 1/217:15 amIAD - CNX

2 stops27h 40mDelta

Sat 2/1412:15 amCNX - IAD

1 stop21h 35mDelta

Deal found 11/12

$1,134

Fri 1/910:40 amIAD - CNX

2 stops34h 45mQatar Airways

Fri 2/2010:10 amCNX - IAD

2 stops41h 45mQatar Airways

Deal found 11/12

$1,158

Mon 1/55:00 pmDCA - CNX

2 stops29h 25mChina Airlines

Mon 1/265:35 pmCNX - DCA

2 stops38h 25mChina Airlines

Deal found 11/12

$1,221

Fri 2/66:00 amDCA - CNX

2 stops28h 55mKorean Air

Fri 2/2012:15 amCNX - DCA

2 stops28h 14mKorean Air

Deal found 11/11

$1,237

Mon 1/57:00 pmBWI - CNX

2 stops27h 25mMultiple Airlines

Mon 1/265:35 pmCNX - BWI

2 stops36h 39mMultiple Airlines

Deal found 11/12

$1,264

Tue 12/307:04 amBWI - CNX

2 stops39h 31mMultiple Airlines

Thu 1/2211:50 amCNX - BWI

2 stops42h 24mMultiple Airlines

Deal found 11/12

$1,449

Mon 1/57:00 pmBWI - CNX

2 stops27h 25mChina Airlines

Sun 1/1111:25 amCNX - BWI

2 stops42h 49mChina Airlines

Deal found 11/12

$1,582

Sun 11/1610:25 amBWI - CNX

3 stops36h 00mMultiple Airlines

Tue 11/184:55 pmCNX - BWI

3 stops34h 55mMultiple Airlines

Deal found 11/12

$1,501

Mon 2/27:35 amDCA - CNX

2 stops27h 20mKorean Air

Wed 2/1112:15 amCNX - DCA

2 stops25h 38mKorean Air

Deal found 11/12

$1,653

Tue 12/304:56 pmDCA - CNX

2 stops41h 59mDelta

Sat 1/2412:15 amCNX - DCA

2 stops31h 37mDelta

Deal found 11/12

$1,826

Tue 12/309:59 amDCA - CNX

2 stops36h 36mMultiple Airlines

Thu 1/2211:50 amCNX - DCA

2 stops40h 19mMultiple Airlines

Deal found 11/12

$1,528

Tue 12/237:04 amBWI - CNX

2 stops39h 31mEVA Air

Tue 1/611:50 amCNX - BWI

2 stops42h 24mEVA Air

Deal found 11/12

$2,377

Wed 12/317:00 amDCA - CNX

2 stops27h 55mKorean Air

Sat 1/2412:15 amCNX - DCA

2 stops34h 20mKorean Air

Deal found 11/12

$1,798

Fri 1/99:59 amDCA - CNX

2 stops36h 26mChina Airlines

Wed 2/1811:25 amCNX - DCA

2 stops42h 34mChina Airlines

Deal found 11/12

$1,901

Mon 1/55:00 pmDCA - CNX

2 stops29h 35mMultiple Airlines

Sun 1/1111:50 amCNX - DCA

2 stops40h 19mMultiple Airlines

Deal found 11/11

$1,723

Sat 12/277:00 amDCA - CNX

2 stops49h 30mKorean Air

Sat 1/2412:15 amCNX - DCA

2 stops34h 20mKorean Air

Deal found 11/12

$1,931

Tue 12/237:00 pmBWI - CNX

2 stops27h 25mChina Airlines

Tue 1/611:25 amCNX - BWI

2 stops42h 49mChina Airlines

Deal found 11/11

$2,339

Sat 1/37:04 amBWI - CNX

2 stops45h 31mMultiple Airlines

Sun 1/1111:25 amCNX - BWI

2 stops42h 49mMultiple Airlines

Deal found 11/12

$1,986

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 13, 2025 and is based on user searches.

Wed 11/129:59 amDCA - CNX

2 stops36h 36mMultiple Airlines

Wed 11/1911:50 amCNX - DCA

2 stops44h 10mMultiple Airlines

Deal found 11/11

$1,074

Wed 11/126:13 pmIAD - CNX

2 stops28h 22mMultiple Airlines

Wed 11/1911:50 amCNX - IAD

2 stops30h 33mMultiple Airlines

Deal found 11/11

$1,107

Wed 11/127:15 amIAD - CNX

2 stops27h 40mDelta

Tue 11/1812:15 amCNX - IAD

2 stops30h 53mDelta

Deal found 11/11

$1,459

Sun 11/1610:25 amBWI - CNX

3 stops36h 00mMultiple Airlines

Tue 11/184:55 pmCNX - BWI

3 stops34h 55mMultiple Airlines

Deal found 11/12

$1,501

Tue 12/308:05 pmIAD - CNX

2 stops39h 30mMultiple Airlines

Thu 1/2210:25 pmCNX - IAD

2 stops53h 30mMultiple Airlines

Deal found 11/12

$1,307

Tue 12/307:04 amBWI - CNX

2 stops39h 31mMultiple Airlines

Thu 1/2211:50 amCNX - BWI

2 stops42h 24mMultiple Airlines

Deal found 11/12

$1,449

Tue 12/308:05 pmIAD - CNX

2 stops51h 20mQatar Airways

Tue 1/209:40 pmCNX - IAD

2 stops30h 15mQatar Airways

Deal found 11/12

$1,493

Tue 12/308:05 pmIAD - CNX

2 stops51h 20mQatar Airways

Fri 1/239:40 pmCNX - IAD

2 stops54h 15mQatar Airways

Deal found 11/12

$1,495

Tue 12/309:59 amDCA - CNX

2 stops36h 36mMultiple Airlines

Thu 1/2211:50 amCNX - DCA

2 stops40h 19mMultiple Airlines

Deal found 11/12

$1,528

Wed 12/3110:40 amIAD - CNX

2 stops58h 45mQatar Airways

Tue 1/209:40 pmCNX - IAD

2 stops30h 15mQatar Airways

Deal found 11/12

$1,422

Wed 12/3110:40 amIAD - CNX

2 stops58h 45mQatar Airways

Mon 1/199:40 pmCNX - IAD

2 stops46h 40mQatar Airways

Deal found 11/12

$1,425

Wed 12/3110:40 amIAD - CNX

2 stops58h 45mQatar Airways

Sat 1/249:40 pmCNX - IAD

2 stops54h 15mQatar Airways

Deal found 11/12

$1,465

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 13, 2025.

Fri 1/162:35 pmIAD - CNX

2 stops45h 00mMultiple Airlines

Deal found 11/12

$488

Tue 2/36:00 pmDCA - CNX

3 stops40h 55mMultiple Airlines

Deal found 11/12

$490

Tue 2/32:35 pmIAD - CNX

2 stops43h 05mMultiple Airlines

Deal found 11/12

$505

Thu 1/152:35 pmIAD - CNX

2 stops41h 45mMultiple Airlines

Deal found 11/12

$507

Wed 1/142:35 pmIAD - CNX

3 stops57h 50mMultiple Airlines

Deal found 11/12

$513

Mon 1/52:35 pmIAD - CNX

3 stops59h 15mMultiple Airlines

Deal found 11/12

$515

Tue 2/36:04 pmIAD - CNX

2 stops33h 51mSTARLUX Airlines

Deal found 11/12

$531

Tue 1/62:35 pmIAD - CNX

3 stops58h 10mMultiple Airlines

Deal found 11/12

$533

Tue 2/35:01 pmDCA - CNX

2 stops29h 24mChina Airlines

Deal found 11/12

$563

Fri 2/68:05 pmIAD - CNX

2 stops36h 20mMultiple Airlines

Deal found 11/12

$569

Fri 1/167:14 pmBWI - CNX

3 stops48h 16mMultiple Airlines

Deal found 11/12

$578

Mon 1/57:00 pmBWI - CNX

3 stops58h 45mMultiple Airlines

Deal found 11/12

$580

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

Fri 1/9

10:00 pm-9:50 pm

1 stop35h 50m

Chiang Mai

Mon 2/16

11:05 pm-6:30 pm

1 stop31h 25m

$1,022

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 1/21

11:50 am-10:55 pm

1 stop23h 05m

Chiang Mai

Sun 2/8

12:15 am-9:50 am

1 stop21h 35m

$1,068

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 1/9

10:40 am-9:25 am

2 stops34h 45m

Chiang Mai

Wed 2/18

9:40 pm-3:55 pm

2 stops30h 15m

$1,083

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 1/21

11:50 am-10:55 pm

1 stop23h 05m

Chiang Mai

Sat 2/14

12:15 am-9:50 am

1 stop21h 35m

$1,083

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Wed 1/21

9:59 am-10:35 am

2 stops36h 36m

Chiang Mai

Mon 2/9

11:50 am-5:56 pm

2 stops42h 06m

$1,085

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 2/2

5:01 pm-10:25 am

2 stops29h 24m

Chiang Mai

Thu 2/12

11:25 am-9:59 pm

2 stops46h 34m

$1,088

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Wed 1/21

9:59 am-10:25 am

2 stops36h 26m

Chiang Mai

Sun 2/15

11:25 am-5:59 pm

2 stops42h 34m

$1,089

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Fri 1/9

10:40 am-9:25 am

2 stops34h 45m

Chiang Mai

Tue 2/17

10:10 am-8:20 am

2 stops34h 10m

$1,097

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 1/21

2:35 pm-1:55 pm

3 stops35h 20m

Chiang Mai

Mon 2/9

10:30 am-9:05 am

3 stops34h 35m

$1,110

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 1/21

6:00 am-10:55 pm

2 stops28h 55m

Chiang Mai

Sun 2/8

12:15 am-9:50 am

1 stop21h 35m

$1,119

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 57 results

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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

1,163 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

1,163 reviews

Korean Air

8.4

Very good

1,163 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Delta

7.9

Good

8,008 reviews

Korean Air

8.4

Very good

1,163 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 $1,068, Air China can have you in Chiang Mai from Washington, D.C. in 23h 05m. 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, Baltimore/Washington - Chiang Mai or Washington, D.C. Reagan-National - 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$1,729	FlexibilityNo cancel fee	On-time81%
Delta	Cheapest$798	Average$1,135	FlexibilityNo cancel fee	On-timeN/A

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$488+ 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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.

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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 13, 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 13, 2025.

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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.

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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

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 13, 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.?

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

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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 13, 2025.