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

Airlines like Etihad Airways and SWISS fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 35h 50m. The time it takes to get you to your destination can typically vary by up to 7h. 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.

$393+ Cheap Flights from Chiang Mai to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Chiang Mai to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 12, 2026.

Mon 10/2611:05 pm -

1 stop31h 25m

Fri 10/3011:30 am -

2 stops34h 55m

Deal found 10/11

$1,095

Tue 11/249:40 am -

2 stops35h 20m

Tue 12/12:25 pm -

2 stops31h 00m

Deal found 10/10

$1,166

Mon 10/2611:05 pm -

1 stop31h 25m

Fri 10/3011:00 pm -

1 stop35h 50m

Deal found 10/11

$1,188

Thu 11/59:10 am -

1 stop35h 50m

Mon 11/92:25 pm -

2 stops40h 35m

Deal found 10/9

$1,258

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 October 12, 2026.

Mon 10/268:50 pm -

2 stops33h 40m

Fri 10/3011:30 am -

2 stops24h 15m

Deal found 10/11

$1,162

Thu 11/59:10 am -

1 stop35h 50m

Mon 11/92:25 pm -

2 stops40h 35m

Deal found 10/9

$1,258

Mon 3/2210:10 am -

2 stops42h 50m

Mon 4/510:25 pm -

3 stops28h 20m

Deal found 10/11

$1,285

Wed 11/412:20 am -

1 stop21h 30m

Mon 11/911:50 am -

1 stop22h 55m

Deal found 10/8

$1,357

Tue 11/249:40 am -

3 stops40h 50m

Tue 12/18:10 pm -

2 stops29h 35m

Deal found 10/10

$1,297

Last-minute flights from Chiang Mai to Dulles Intl
Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated October 12, 2026 and is based on user searches.

Mon 10/2611:05 pm -

1 stop31h 25m

Fri 10/3011:30 am -

2 stops34h 55m

Deal found 10/11

$1,095

Mon 10/2611:05 pm -

1 stop31h 25m

Fri 10/3011:00 pm -

1 stop35h 50m

Deal found 10/11

$1,188

Thu 11/59:10 am -

1 stop35h 50m

Mon 11/92:25 pm -

2 stops40h 35m

Deal found 10/9

$1,258

Tue 11/249:40 am -

2 stops35h 20m

Tue 12/12:25 pm -

2 stops31h 00m

Deal found 10/10

$1,166

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 October 12, 2026.

Mon 11/169:10 am -

1 stop35h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/10

$393

Mon 11/169:40 am -

2 stops35h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/10

$492

Mon 1/1811:05 pm -

1 stop31h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$687

Mon 1/1810:10 am -

2 stops37h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/8

$861

Mon 1/187:45 pm -

3 stops48h 15m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/11

$1,695

Sun 1/247:45 pm -

2 stops48h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/11

$6,352

Sun 1/2412:40 pm -

3 stops39h 05m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/11

$7,996

Find flight deals from Chiang Mai to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,000 (Kiwi.com)
One-way from	$393 (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.

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

Mon 11/16

9:10 am-9:00 am

1 stop35h 50m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$393

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Mon 11/16

9:40 am-9:00 am

2 stops35h 20m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$492

Quickest round-trip

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Mon 1/18

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

$687

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Mon 1/18

7:45 pm-11:45 am

2 stops52h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$861

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Mon 10/26

8:50 pm-7:30 pm

2 stops33h 40m

Washington, D.C. Dulles Intl

Fri 10/30

11:30 am-10:45 pm

2 stops24h 15m

$1,162

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Thu 11/5

9:10 am-9:00 am

1 stop35h 50m

Washington, D.C. Dulles Intl

Mon 11/9

2:25 pm-7:00 pm

2 stops40h 35m

$1,258

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Mon 3/22

10:10 am-6:00 pm

2 stops42h 50m

Washington, D.C. Dulles Intl

Mon 4/5

10:25 pm-1:45 pm

3 stops28h 20m

$1,285

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Tue 11/24

9:40 am-2:30 pm

3 stops40h 50m

Washington, D.C. Dulles Intl

Tue 12/1

8:10 pm-1:45 pm

2 stops29h 35m

$1,297

Chiang MaiWashington, D.C.

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

CNXIAD

Chiang Mai

Wed 11/4

12:20 am-9:50 am

1 stop21h 30m

Washington, D.C. Dulles Intl

Mon 11/9

11:50 am-10:45 pm

1 stop22h 55m

$1,357

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Sorted 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 October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	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 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 SWISS fly from Chiang Mai to Washington, D.C. Dulles Intl Airport in about 35h 50m. The time it takes to get you to your destination can typically vary by up to 7h. 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.

See more FAQs

Alexandria

Chantilly

Arlington

Woodbridge

Owings Mills

Lanham

Sterling

Tysons

Herndon

Reston

Hyattsville

Rockville

Springfield

Fredericksburg

Falls Church

Oxon Hill

Laurel

Towson

Clinton

Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Dulles Intl flight routes

Flights by cabin class

Other flight options

Popular flights

Alternative routes for Chiang Mai to Dulles Intl

Suvarnabhumi to Baltimore flights

Chiang Mai to Baltimore flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$393+ 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 11/16. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 October 12, 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 October 12, 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 October 12, 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 October 12, 2026.

Last-minute flights from Chiang Mai to Dulles IntlDiscover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated October 12, 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated October 12, 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 October 12, 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 October 12, 2026.

Find flight deals from Chiang Mai to Dulles Intl

Most accurate provider

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 October.

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 October 12, 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.

Chiang Mai and Dulles Intl flights

Browse other Chiang Mai and Dulles Intl flight options. Last updated on October 12, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

100% Free

Book with Flexibility

Travel Smart

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 October 12, 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 October 12, 2026.

Last-minute flights from Chiang Mai to Dulles Intl
Discover last-minute flight deals from Chiang Mai to Dulles Intl. Data last updated October 12, 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 October 12, 2026.