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

Airlines like Etihad Airways and Qatar Airways fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 34h. The time it takes to get you to your destination can typically vary by up to 1h 55m. 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.

$368+ 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 September 15, 2026.

Sun 11/19:10 am -

1 stop35h 55m

Sun 11/1511:50 am -

1 stop22h 55m

Deal found 9/14

$867

Thu 10/299:10 am -

1 stop35h 55m

Thu 11/56:32 pm -

2 stops40h 13m

Deal found 9/13

$948

Wed 11/412:20 am -

1 stop21h 30m

Mon 11/911:50 am -

1 stop22h 55m

Deal found 9/14

$1,150

Sun 11/112:20 am -

2 stops23h 14m

Thu 11/56:12 pm -

2 stops40h 33m

Deal found 9/12

$1,155

Wed 10/2812:20 am -

2 stops27h 08m

Thu 11/56:12 pm -

2 stops40h 33m

Deal found 9/13

$1,158

Sun 11/19:10 am -

1 stop35h 55m

Sat 11/2111:55 pm -

2 stops44h 15m

Deal found 9/14

$1,163

Mon 11/29:10 am -

1 stop35h 55m

Thu 11/52:35 pm -

2 stops30h 50m

Deal found 9/12

$1,165

Sun 11/19:10 am -

1 stop35h 55m

Thu 11/192:35 pm -

2 stops42h 45m

Deal found 9/14

$1,237

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 September 15, 2026.

Thu 11/59:10 am -

1 stop35h 55m

Mon 11/92:35 pm -

2 stops40h 25m

Deal found 9/10

$1,289

Thu 11/510:10 am -

2 stops34h 00m

Mon 11/98:05 pm -

2 stops25h 20m

Deal found 9/12

$1,379

Thu 1/710:10 am -

2 stops40h 00m

Thu 5/135:45 pm -

2 stops39h 45m

Deal found 9/10

$1,612

Wed 1/137:45 pm -

2 stops32h 10m

Thu 5/139:00 pm -

2 stops35h 10m

Deal found 9/12

$1,450

Thu 1/149:10 am -

1 stop35h 55m

Fri 5/143:10 pm -

1 stop28h 15m

Deal found 9/12

$1,580

Thu 1/710:10 am -

2 stops40h 00m

Sat 5/155:45 pm -

2 stops39h 45m

Deal found 9/10

$1,612

Mon 1/117:45 pm -

2 stops32h 10m

Thu 5/139:00 pm -

2 stops35h 10m

Deal found 9/12

$1,529

Thu 1/710:10 am -

2 stops40h 00m

Wed 5/125:45 pm -

2 stops39h 45m

Deal found 9/14

$1,636

Thu 1/1412:10 pm -

2 stops32h 20m

Sat 5/159:00 pm -

2 stops35h 10m

Deal found 9/12

$1,610

Fri 1/87:45 pm -

2 stops48h 45m

Thu 5/139:00 pm -

2 stops35h 10m

Deal found 9/15

$1,653

Last-minute flights from Chiang Mai to Dulles Intl
Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated September 15, 2026 and is based on user searches.

Wed 10/2812:20 am -

2 stops27h 08m

Thu 11/56:12 pm -

2 stops40h 33m

Deal found 9/13

$1,158

Thu 10/299:10 am -

1 stop35h 55m

Thu 11/56:32 pm -

2 stops40h 13m

Deal found 9/13

$948

Thu 10/299:10 am -

1 stop35h 55m

Thu 11/52:35 pm -

1 stop27h 30m

Deal found 9/13

$1,491

Thu 10/2910:10 am -

3 stops39h 50m

Thu 11/58:10 pm -

2 stops29h 35m

Deal found 9/13

$1,552

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 September 15, 2026.

Fri 11/139:10 am -

1 stop35h 55m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/14

$368

Mon 12/79:10 am -

1 stop35h 55m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$374

Fri 11/139:10 am -

2 stops50h 33m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/14

$549

Thu 10/15:45 pm -

2 stops28h 05m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/13

$573

Sat 10/310:30 pm -

2 stops47h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$617

Wed 10/710:30 pm -

2 stops47h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$622

Mon 10/510:30 pm -

2 stops47h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$627

Tue 9/295:45 pm -

2 stops28h 05m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/13

$628

Fri 10/210:30 pm -

2 stops34h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/13

$632

Fri 10/98:00 am -

2 stops49h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$638

Wed 9/306:35 am -

2 stops26h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/13

$641

Tue 10/66:25 pm -

2 stops27h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$642

Find flight deals from Chiang Mai to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$867 (Gotogate)
One-way from	$368 (IEagle)

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.

Search Deals

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

Search Deals

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

Search Deals

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

Fri 11/13

9:10 am-9:05 am

1 stop35h 55m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$368

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Thu 1/14

10:30 pm-8:55 pm

2 stops58h 25m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$643

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Thu 1/14

11:05 pm-6:30 pm

1 stop31h 25m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$708

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Sat 1/16

9:10 pm-10:38 am

3 stops49h 28m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$763

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Thu 1/7

9:35 am-8:35 pm

2 stops47h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$837

Quickest round-trip

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Thu 11/5

12:20 am-9:50 am

1 stop21h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$890

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Sun 10/4

9:45 pm-11:05 am

1 stop24h 20m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$942

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Fri 1/8

7:45 pm-3:55 pm

2 stops56h 10m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$1,172

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Wed 1/6

12:20 am-9:50 am

1 stop21h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$1,219

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Tue 1/12

12:20 am-9:50 am

1 stop21h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$1,219

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 20 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 September.

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 Qatar Airways fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 34h. The time it takes to get you to your destination can typically vary by up to 1h 55m. 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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$368+ Cheap flights from Chiang Mai (CNX) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. 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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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 September 15, 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 September 15, 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 September 15, 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 September 15, 2026.

Last-minute flights from Chiang Mai to Dulles IntlDiscover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated September 15, 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated September 15, 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 September 15, 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 September 15, 2026.

Find flight deals from Chiang Mai to Dulles Intl

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Most trusted provider

Round-trip from

One-way from

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 September.

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?

Browse thousands of different options on Cheapflights for your next trip

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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 September 15, 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 September 15, 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 September 15, 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 September 15, 2026.

Last-minute flights from Chiang Mai to Dulles Intl
Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated September 15, 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 September 15, 2026.