Find flights
When to book
Airlines
FAQs

Cheap flights from Chiang Mai to Washington, D.C. Dulles Intl Airport from ฿26,272

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
4 May — 11 May1
1 adult

Cheap flight deals from Chiang Mai to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Dulles Intl (IAD). 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 29 April 2025.

Round-trip from

฿39,207

One-way from

฿26,272

Popular in

January

Cheapest in

October

Average price

฿38,235
EVA Air
  • EVA Air
  • 6/6-23/7
  • 4 total stops
  • 66h 45m total
  • Chiang Mai to Washington, D.C.
Search Deals
12/7
  • 12/7
  • 2 total stops
  • 30h 30m total
  • Chiang Mai to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (฿88,844 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿53,574 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Chiang Mai to Dulles Intl

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 29 April 2025.

Fri 6/611:35CNX - IAD
2 stops39h 39mEVA Air
Wed 23/720:19IAD - CNX
2 stops27h 06mEVA Air
Deal found 28/4฿39,207
Wed 17/923:15CNX - IAD
2 stops28h 16mเดลต้า
Wed 15/1018:40IAD - CNX
2 stops40h 15mเดลต้า
Deal found 28/4฿40,145
Tue 16/900:45CNX - IAD
2 stops34h 35mMultiple Airlines
Wed 15/1007:00IAD - CNX
2 stops29h 40mMultiple Airlines
Deal found 28/4฿45,976
Wed 17/923:15CNX - IAD
1 stop22h 40mKorean Air
Wed 15/1013:15IAD - CNX
1 stop44h 30mKorean Air
Deal found 28/4฿85,485
Thu 5/600:45CNX - IAD
2 stops31h 35mAsiana Airlines
Wed 23/717:45IAD - CNX
2 stops42h 55mAsiana Airlines
Deal found 28/4฿95,136

Cheapflights Fare Finder

Customise your flight search to find flights from Chiang Mai to Dulles Intl 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 17,341 searches. Data last updated 29 April 2025.
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

Chiang Mai

Fly to

Dulles Intl

Route

Depart

Return

Price

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 6/6

11:35-16:14

2 stops39h 39m

Washington, D.C. Dulles Intl

Wed 23/7

20:19-10:25

2 stops27h 06m

฿39,207

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/9

23:15-16:31

2 stops28h 16m

Washington, D.C. Dulles Intl

Wed 15/10

18:40-21:55

2 stops40h 15m

฿40,145

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 16/9

00:45-00:20

2 stops34h 35m

Washington, D.C. Dulles Intl

Wed 15/10

07:00-23:40

2 stops29h 40m

฿45,976

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 17/9

23:15-10:55

1 stop22h 40m

Washington, D.C. Dulles Intl

Wed 15/10

13:15-20:45

1 stop44h 30m

฿85,485

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 5/6

00:45-21:20

2 stops31h 35m

Washington, D.C. Dulles Intl

Wed 23/7

17:45-23:40

2 stops42h 55m

฿95,136

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 12/7

11:20-06:50

2 stops30h 30m

฿26,272

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 12/7

23:15-11:15

1 stop23h 00m

฿79,151

Flights are sorted by cheapest return flights first.

Deals found on 28/4

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.
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.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

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.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 29 April 2025.
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very Good
1,186 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Korean Air
8.4
Very Good
1,064 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Asiana Airlines
8.2
Very Good
442 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
เดลต้า
8.0
Very Good
7,929 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Dulles Intl. 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 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 1 airline.

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

    Cheapflights users have booked flights from Chiang Mai to Washington, D.C. Dulles Intl Airport return from ฿39,207. Other airlines that can offer you cheap pricing are เดลต้า, from ฿40,145, and Korean Air, from ฿85,485. You may be able to fly from Chiang Mai to Washington, D.C. Dulles Intl Airport for 12% less than the average price by searching for these 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.

See more FAQs

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.
Chiang Mai to Baltimore flights
Chiang Mai to Reagan-National flights

Top airline flying from Chiang Mai to Dulles Intl

Discover the top airline that operate flights from Chiang Mai to Dulles Intl. 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 17,341 searches. Data last updated 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
เดลต้าCheapest฿36,977Average฿50,228FlexibilityNo cancel feeOn-timeN/A
Search เดลต้า flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Chiang Mai to Dulles Intl?

Cheapflights helps you search for flights from Chiang Mai to Dulles Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chiang Mai to Dulles Intl.

Can Cheapflights find flights from Chiang Mai to Dulles Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Chiang Mai to Dulles Intl with no change fees.

Can Cheapflights notify me if prices for flights from Chiang Mai to Dulles Intl become cheaper?

Yes! Start tracking prices for Chiang Mai to Dulles Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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.
Site
©2025 Cheapflights