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Chiang Mai

$519+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — CNX
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap 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 January 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,122
(Trip.com)

One-way from

$519
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$1,550
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. 12% potential increase in price ($233 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 21, 2025.

This Trip.com deal was found by Cheapflights users on 1/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1110:25 pmIAD - CNX
2 stops26h 30mMultiple Airlines
Tue 3/1810:50 pmCNX - IAD
2 stops49h 25mMultiple Airlines
Deal found 1/21$1,122
This Travelocity deal was found by Cheapflights users on 1/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/26:56 pmBWI - CNX
2 stops40h 09mMultiple Airlines
Tue 3/1112:25 amCNX - BWI
2 stops52h 31mMultiple Airlines
Deal found 1/21$1,247
This Orbitz deal was found by Cheapflights users on 1/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/199:00 amDCA - CNX
2 stops37h 25mMultiple Airlines
Wed 2/2611:25 amCNX - DCA
2 stops45h 34mMultiple Airlines
Deal found 1/20$1,301
This oojo deal was found by Cheapflights users on 1/20. 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.
Sun 3/28:05 pmIAD - CNX
2 stops27h 15mQatar Airways
Sun 3/912:25 pmCNX - IAD
2 stops39h 30mQatar Airways
Deal found 1/20$1,337
This oojo deal was found by Cheapflights users on 1/21. 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.
Mon 2/109:30 pmIAD - CNX
2 stops47h 50mEtihad Airways
Tue 3/117:45 pmCNX - IAD
2 stops32h 40mEtihad Airways
Deal found 1/21$1,349
This Ovago deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/254:35 pmIAD - CNX
2 stops41h 15mAir China
Fri 2/2811:05 pmCNX - IAD
1 stop27h 05mAir China
Deal found 1/20$1,484
This Trip.com deal was found by Cheapflights users on 1/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1112:50 pmIAD - CNX
1 stop38h 15mKorean Air
Tue 3/183:20 pmCNX - IAD
1 stop30h 30mKorean Air
Deal found 1/21$1,529
This FlightHub deal was found by Cheapflights users on 1/21. 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 2/106:32 amIAD - CNX
2 stops28h 33mAsiana Airlines
Mon 3/1012:25 amCNX - IAD
2 stops31h 45mAsiana Airlines
Deal found 1/21$1,578
This Korean Air deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/277:34 amDCA - CNX
2 stops27h 31mKorean Air
Mon 2/103:20 pmCNX - DCA
2 stops38h 40mKorean Air
Deal found 1/20$1,690
This Air Canada deal was found by Cheapflights users on 1/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/105:30 pmIAD - CNX
2 stops34h 25mAir Canada
Wed 7/1611:15 amCNX - IAD
2 stops64h 12mAir Canada
Deal found 1/19$1,701
This KAYAK deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:05 pmIAD - CNX
2 stops29h 45mMalaysia Airlines
Sat 1/32:50 pmCNX - IAD
2 stops37h 05mMalaysia Airlines
Deal found 1/20$1,735
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:50 pmIAD - CNX
3 stops37h 05mAustrian Airlines
Wed 4/239:10 pmCNX - IAD
2 stops28h 25mAustrian Airlines
Deal found 1/21$1,809

Find flights from Washington, D.C. to Chiang Mai within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 3/2

1:30 pm-10:10 am

2 stops32h 40m

Chiang Mai

Wed 3/12

6:15 pm-1:15 pm

2 stops30h 00m

$1,122

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 3/2

8:00 am-11:05 pm

2 stops27h 05m

Chiang Mai

Tue 3/11

12:25 am-8:59 pm

2 stops31h 34m

$1,212

BaltimoreChiang Mai

BWI - CNX

BWICNX

Baltimore/Washington

Sun 3/2

6:56 pm-11:05 pm

2 stops40h 09m

Chiang Mai

Tue 3/11

12:25 am-5:56 pm

2 stops52h 31m

$1,247

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 2/10

9:30 pm-9:20 am

2 stops47h 50m

Chiang Mai

Tue 3/11

7:45 pm-5:25 pm

2 stops32h 40m

$1,349

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Thu 2/20

11:50 am-11:05 pm

1 stop23h 15m

Chiang Mai

Thu 2/27

3:20 pm-9:50 am

1 stop30h 30m

$1,513

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 4/13

10:55 am-7:10 pm

2 stops45h 15m

Chiang Mai

Thu 4/17

11:55 am-4:10 pm

2 stops39h 15m

$1,521

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 3/11

6:00 am-1:45 pm

3 stops44h 45m

Chiang Mai

Tue 3/18

10:10 am-4:29 pm

3 stops41h 19m

$1,547

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 2/10

6:32 am-11:05 pm

2 stops28h 33m

Chiang Mai

Mon 3/10

12:25 am-9:10 pm

2 stops31h 45m

$1,578

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 7/6

5:30 pm-2:55 pm

2 stops34h 25m

Chiang Mai

Mon 7/21

6:05 pm-4:27 pm

2 stops57h 22m

$1,698

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 3/3

6:00 am-11:05 pm

2 stops29h 05m

Chiang Mai

Sun 3/9

3:20 pm-6:00 pm

2 stops37h 40m

$1,701

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 22 results
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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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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.

Travel insights for flights from Washington, D.C. to Chiang Mai

Get recent, data-driven insights about flights from Washington, D.C. to Chiang Mai including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Washington, D.C. to Chiang Mai?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Chiang Mai (average of $1,041). Flying from Washington, D.C. to Chiang Mai in December is currently the most expensive (average of $1,678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 January 21, 2025.

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.

Rainfall in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average rainfall totals by month.

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.

Temperature in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average temperature totals by month.

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).

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 January 21, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Chiang Mai, such as Asiana Airlines, Korean Air and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Asiana Airlines
8.3
Very good
466 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,521 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Austrian Airlines
7.6
Good
786 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Qatar Airways
7.5
Good
3,752 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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.

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

    According to our current data, Qatar Airways ($1,337), Etihad Airways ($1,349), and Air China ($1,484) offers the cheapest pricing from Washington, D.C. to Chiang Mai. Qatar Airways is 16% 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.

  • What is the cheapest month to book a flight from Washington, D.C. to Chiang Mai?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Chiang Mai (average of $1,041). Flying from Washington, D.C. to Chiang Mai in December is currently the most expensive (average of $1,678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$966Average$1,418FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$975Average$1,431FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,207Average$1,452FlexibilityNo cancel feeOn-time68%
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