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

Airlines like Etihad Airways and Delta fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 35h 21m. The time it takes to get you to your destination can typically vary by up to 34m. The distance from Chiang Mai to Washington, D.C. Dulles Intl Airport is about 8436 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

When flying from Chiang Mai to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Chiang Mai-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chiang Mai-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chiang Mai-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Chiang Mai-Washington, D.C. Dulles Intl Airport 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 Chiang Mai-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Chiang Mai to Washington, D.C. Dulles Intl?

If you book a flight to Washington, D.C. Dulles Intl from Chiang Mai, you will be flying from Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 1.9 mi from the center of Chiang Mai. There are 0 flights from Chiang Mai to Washington, D.C. Dulles Intl per day from 0 different airlines.

Can I find deals for flights from Chiang Mai to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Chiang Mai to Dulles Intl?

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

Can I find deals for business class flights from Chiang Mai to Dulles Intl?

Yes. Cheapflights offers flight deals from Chiang Mai to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$388+ Cheap Flights from Chiang Mai to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Chiang Mai to Dulles Intl

Cheapest

Best

Last-minute

One-way

Cheapest flights from Chiang Mai to Dulles Intl
Explore the most affordable flight options available from Chiang Mai to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 31, 2026.

Wed 12/99:10 am -

1 stop35h 55m

Fri 1/812:30 pm -

2 stops46h 25m

Deal found 8/31

$912

Sat 9/58:00 am -

2 stops25h 00m

Wed 9/161:15 am -

2 stops47h 05m

Deal found 8/30

$989

Wed 12/99:10 am -

1 stop35h 55m

Fri 1/82:35 pm -

1 stop27h 30m

Deal found 8/31

$1,038

Thu 11/59:10 am -

1 stop35h 55m

Wed 11/112:35 pm -

1 stop27h 30m

Deal found 8/27

$1,040

Thu 11/59:10 am -

1 stop35h 55m

Wed 11/118:05 pm -

2 stops34h 45m

Deal found 8/27

$1,050

Wed 12/99:10 am -

1 stop35h 55m

Sun 1/102:35 pm -

1 stop27h 30m

Deal found 8/29

$1,060

Thu 11/59:10 am -

1 stop35h 55m

Mon 11/92:35 pm -

1 stop27h 30m

Deal found 8/30

$1,063

Tue 12/89:10 am -

1 stop35h 55m

Sun 1/102:35 pm -

1 stop27h 30m

Deal found 8/29

$1,067

Fri 12/119:10 am -

1 stop35h 55m

Fri 1/82:35 pm -

1 stop27h 30m

Deal found 8/29

$1,080

Best flights from Chiang Mai to Dulles Intl
Discover carefully curated flight deals from Chiang Mai to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 31, 2026.

Thu 11/59:10 am -

1 stop35h 55m

Wed 11/112:35 pm -

1 stop27h 30m

Deal found 8/26

$1,040

Thu 11/59:10 am -

1 stop35h 55m

Wed 11/118:05 pm -

2 stops34h 45m

Deal found 8/27

$1,050

Tue 12/812:15 am -

2 stops35h 21m

Sun 1/106:10 am -

2 stops28h 45m

Deal found 8/29

$1,154

Wed 11/412:15 am -

1 stop21h 35m

Wed 11/1111:50 am -

1 stop23h 05m

Deal found 8/26

$1,164

Thu 10/155:20 pm -

2 stops47h 20m

Sun 11/155:17 pm -

2 stops34h 43m

Deal found 8/31

$1,235

Thu 11/57:45 pm -

3 stops31h 55m

Wed 11/116:00 pm -

2 stops37h 00m

Deal found 8/27

$1,346

Thu 11/59:10 am -

1 stop35h 55m

Mon 11/92:35 pm -

1 stop27h 30m

Deal found 8/30

$1,063

Wed 11/412:15 am -

2 stops35h 20m

Wed 11/116:00 am -

2 stops28h 55m

Deal found 8/27

$1,163

One-way flights from Chiang Mai to Dulles Intl
Search for one-way flight options from Chiang Mai to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.

Sat 10/319:10 am -

1 stop35h 55m

Deal found 8/30

$388

Sat 10/319:10 am -

2 stops50h 33m

Deal found 8/30

$557

Tue 1/199:35 am -

3 stops59h 30m

Deal found 8/29

$565

Sat 11/77:35 pm -

3 stops49h 30m

Deal found 8/29

$566

Sun 11/86:45 am -

3 stops38h 20m

Deal found 8/29

$568

Tue 9/811:50 am -

2 stops45h 10m

Deal found 8/27

$600

Wed 9/99:35 am -

2 stops23h 25m

Deal found 8/28

$612

Mon 11/307:05 am -

2 stops42h 45m

Deal found 8/27

$613

Wed 1/138:05 am -

2 stops24h 50m

Deal found 8/31

$622

Fri 1/87:05 am -

2 stops49h 50m

Deal found 8/29

$628

Find flight deals from Chiang Mai to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$912 (Expedia)
One-way from	$388 (SmartFares)

Provider with most accurate pricing for Chiang Mai-Washington, D.C. Dulles Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chiang Mai-Washington, D.C. Dulles Intl flights.

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From Chiang Mai to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Chiang Mai to Washington, D.C. Dulles Intl

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Thu 11/5

9:10 am-9:05 am

1 stop35h 55m

Washington, D.C. Dulles Intl

Wed 11/11

2:35 pm-6:05 am

1 stop27h 30m

$1,040

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Thu 11/5

9:10 am-9:05 am

1 stop35h 55m

Washington, D.C. Dulles Intl

Wed 11/11

8:05 pm-6:50 pm

2 stops34h 45m

$1,050

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Thu 11/5

9:10 am-9:05 am

1 stop35h 55m

Washington, D.C. Dulles Intl

Mon 11/9

2:35 pm-6:05 am

1 stop27h 30m

$1,063

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Tue 12/8

12:15 am-11:36 pm

2 stops35h 21m

Washington, D.C. Dulles Intl

Sun 1/10

6:10 am-10:55 pm

2 stops28h 45m

$1,154

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Wed 11/4

12:15 am-11:35 pm

2 stops35h 20m

Washington, D.C. Dulles Intl

Wed 11/11

6:00 am-10:55 pm

2 stops28h 55m

$1,163

Quickest round-trip

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Wed 11/4

12:15 am-9:50 am

1 stop21h 35m

Washington, D.C. Dulles Intl

Wed 11/11

11:50 am-10:55 pm

1 stop23h 05m

$1,164

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Thu 10/15

5:20 pm-5:40 am

2 stops47h 20m

Washington, D.C. Dulles Intl

Sun 11/15

5:17 pm-4:00 pm

2 stops34h 43m

$1,235

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Thu 11/5

7:45 pm-3:40 pm

3 stops31h 55m

Washington, D.C. Dulles Intl

Wed 11/11

6:00 pm-7:00 pm

2 stops37h 00m

$1,346

Cheapest one-way

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Sat 10/31

9:10 am-10:05 am

1 stop35h 55m

$388

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Sat 10/31

2:20 pm-10:05 am

3 stops54h 45m

$561

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/30

Showing 1-10 of 19 resultsSorted by cheapest first

Compare providers for flights from Chiang Mai to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chiang Mai to Dulles Intl in August.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	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 Chiang Mai-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chiang Mai-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chiang Mai-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Chiang Mai-Washington, D.C. Dulles Intl Airport 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 Chiang Mai-Washington, D.C. Dulles Intl Airport 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 Chiang Mai to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Chiang Mai with our price prediction graph.

CNX-IAD

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.

Related info for your journey

What airport do you fly from for flights from Chiang Mai to Washington, D.C. Dulles Intl?
If you book a flight to Washington, D.C. Dulles Intl from Chiang Mai, you will be flying from Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 1.9 mi from the center of Chiang Mai. There are 0 flights from Chiang Mai to Washington, D.C. Dulles Intl per day from 0 different airlines.
How long is the flight from Chiang Mai to Washington, D.C. Dulles Intl Airport?
Airlines like Etihad Airways and Delta fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 35h 21m. The time it takes to get you to your destination can typically vary by up to 34m. The distance from Chiang Mai to Washington, D.C. Dulles Intl Airport is about 8436 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
Can I find deals for flights from Chiang Mai to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Chiang Mai to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Chiang Mai to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Dulles Intl.
Can I find deals for business class flights from Chiang Mai to Dulles Intl?
Yes. Cheapflights offers flight deals from Chiang Mai to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$388+ Cheap flights from Chiang Mai (CNX) to Dulles Intl (IAD)

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Chiang Mai to Dulles Intl with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from Chiang Mai to Dulles Intl

Cheapest flights from Chiang Mai to Dulles IntlExplore the most affordable flight options available from Chiang Mai to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 31, 2026.

Explore the most affordable flight options available from Chiang Mai to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 31, 2026.

Best flights from Chiang Mai to Dulles IntlDiscover carefully curated flight deals from Chiang Mai to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 31, 2026.

Discover carefully curated flight deals from Chiang Mai to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 31, 2026.

Last-minute flights from Chiang Mai to Dulles IntlDiscover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated August 31, 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated August 31, 2026 and is based on user searches.

One-way flights from Chiang Mai to Dulles IntlSearch for one-way flight options from Chiang Mai to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.

Search for one-way flight options from Chiang Mai to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.

Find flight deals from Chiang Mai to Dulles Intl

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Cheapflights Fare Finder

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

Compare providers for flights from Chiang Mai to Dulles Intl

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 Chiang Mai to Dulles Intl in August.

Best time to book a flight from Chiang Mai to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Chiang Mai with our price prediction graph.

Related info for your journey

What airport do you fly from for flights from Chiang Mai to Washington, D.C. Dulles Intl?

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

Can I find deals for flights from Chiang Mai to Dulles Intl that include hotel bookings?

How can I find direct flights from Chiang Mai to Dulles Intl?

Can I find deals for business class flights from Chiang Mai to Dulles Intl?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Chiang Mai to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 31, 2026.

Search flights from Chiang Mai to Dulles Intl by cabin class

Find flights from Chiang Mai to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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Browse other Chiang Mai and Dulles Intl flight options. Last updated on August 31, 2026.

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Cheapest flights from Chiang Mai to Dulles Intl
Explore the most affordable flight options available from Chiang Mai to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 31, 2026.

Best flights from Chiang Mai to Dulles Intl
Discover carefully curated flight deals from Chiang Mai to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 31, 2026.

Last-minute flights from Chiang Mai to Dulles Intl
Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated August 31, 2026 and is based on user searches.

One-way flights from Chiang Mai to Dulles Intl
Search for one-way flight options from Chiang Mai to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.