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

Airlines like Korean Air, เดลต้า, and เอทิฮัดแอร์เวย์ fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 21h 30m. The time it takes to get you to your destination can typically vary by up to 14h 20m. Airlines will cover a distance of 13576 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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.

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

Located just 3.1 km from the city centre, Chiang Mai is the airport most travellers will use when flying to Washington, D.C. Dulles Intl from Chiang Mai. Booking flights from Chiang Mai (CNX) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl 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 holiday 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.

฿12,887+ Cheap Flights from Chiang Mai to Washington, D.C. Dulles Intl Airport

Cheap flight deals from Chiang Mai to Dulles Intl

Enter your travel dates to find the best prices.

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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 1 October 2026.

Thu 29/1009:10 -

1 stop35h 55m

Tue 3/1111:50 -

1 stop22h 55m

Deal found 29/9฿26,781

Tue 10/1109:10 -

1 stop35h 55m

Tue 17/1114:35 -

2 stops41h 35m

Deal found 26/9฿34,466

Thu 29/1009:10 -

1 stop35h 55m

Thu 5/1114:25 -

2 stops40h 35m

Deal found 30/9฿34,936

Wed 4/1100:20 -

1 stop21h 30m

Mon 9/1111:50 -

1 stop22h 55m

Deal found 29/9฿38,325

Wed 28/1000:20 -

2 stops33h 29m

Tue 3/1106:05 -

2 stops28h 40m

Deal found 29/9฿38,392

Thu 29/1010:10 -

2 stops34h 50m

Thu 5/1114:25 -

2 stops31h 00m

Deal found 30/9฿41,010

Mon 9/1100:20 -

2 stops35h 01m

Tue 17/1106:00 -

2 stops28h 45m

Deal found 26/9฿42,017

Thu 5/1109:10 -

1 stop35h 55m

Mon 9/1114:35 -

2 stops40h 25m

Deal found 27/9฿42,956

Find flight deals from Chiang Mai to Dulles Intl

Round-trip from	฿26,781
One-way from	฿12,887

Korean Air
29/10-3/11
2 total stops
58h 50m total
Chiang Mai to Washington, D.C.

Search Deals

เอทิฮัดแอร์เวย์
4/11-31/12
1 total stop
35h 50m total
Chiang Mai to Washington, D.C.

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.

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Route

Depart

Return

Price

Cheapest return flight

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Wed 4/11

08:55-09:05

2 stops36h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿16,008

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Mon 2/11

10:50-09:05

3 stops34h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿19,196

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Sat 26/12

20:55-09:00

1 stop24h 05m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿24,264

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Sun 27/12

20:55-09:00

1 stop24h 05m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿24,834

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Wed 13/1

20:55-09:05

1 stop24h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿26,311

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Wed 10/2

17:15-14:43

3 stops33h 28m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿28,626

Fastest return journey

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Tue 9/2

00:20-09:50

1 stop21h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,465

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Wed 13/1

22:35-14:45

2 stops52h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,835

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Thu 7/1

18:05-20:35

2 stops38h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿32,284

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Mon 11/1

23:05-18:30

1 stop31h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿32,553

Flights are sorted by cheapest return flights first.

Deals found on 30/9

Showing 1-10 of 16 resultsSorted by cheapest first

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 return 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?
Located just 3.1 km from the city centre, Chiang Mai is the airport most travellers will use when flying to Washington, D.C. Dulles Intl from Chiang Mai. Booking flights from Chiang Mai (CNX) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 0 different airlines.
How long is the flight from Chiang Mai to Washington, D.C. Dulles Intl Airport?
Airlines like Korean Air, เดลต้า, and เอทิฮัดแอร์เวย์ fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 21h 30m. The time it takes to get you to your destination can typically vary by up to 14h 20m. Airlines will cover a distance of 13576 km. When browsing for deals, the options you’ll see will be for both direct 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 holiday 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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Cheap flights from Chiang Mai to Washington, D.C. Dulles Intl Airport from ฿12,887

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/11. Fares are subject to change and may not be available on all flights or dates of travel.

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 1 October 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 1 October 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 stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Discover carefully curated flight deals from Chiang Mai to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Last-minute flights from Chiang Mai to Dulles IntlDiscover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated 1 October 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated 1 October 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 1 October 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 1 October 2026.

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

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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?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Chiang Mai to Dulles Intl

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Chiang Mai and Dulles Intl flights

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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 1 October 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 stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Last-minute flights from Chiang Mai to Dulles Intl
Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated 1 October 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 1 October 2026.