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Dulles Intl

$614+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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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 June 18, 2025.

Round-trip from

$1,237
(Lufthansa)

One-way from

$614
(Kiwi.com)
From Chiang Mai to Washington, D.C. Dulles Intl
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One-way flight from Chiang Mai to Washington, D.C. Dulles Intl
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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 June 18, 2025.

This Lufthansa deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/168:00 pmCNX - IAD
2 stops30h 20mLufthansa
Tue 9/210:20 pmIAD - CNX
2 stops33h 50mLufthansa
Deal found 6/16$1,237
This SWISS deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/208:00 pmCNX - IAD
2 stops55h 15mSWISS
Tue 9/25:45 pmIAD - CNX
2 stops33h 00mSWISS
Deal found 6/16$1,289
This Orbitz deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1811:15 amCNX - IAD
2 stops40h 00mMultiple Airlines
Tue 9/28:45 pmIAD - CNX
2 stops30h 00mMultiple Airlines
Deal found 6/16$1,310
This oojo deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3011:20 amCNX - IAD
2 stops30h 30mChina Airlines
Mon 8/186:13 pmIAD - CNX
2 stops29h 07mChina Airlines
Deal found 6/18$1,321
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/511:35 amCNX - IAD
2 stops39h 50mEVA Air
Wed 9/176:09 pmIAD - CNX
2 stops29h 16mEVA Air
Deal found 6/15$1,387
This Austrian Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/189:10 pmCNX - IAD
3 stops29h 25mAustrian Airlines
Tue 9/25:25 pmIAD - CNX
2 stops38h 45mAustrian Airlines
Deal found 6/16$1,419
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/411:15 pmCNX - IAD
2 stops41h 42mDelta
Sun 9/146:10 amIAD - CNX
2 stops28h 45mDelta
Deal found 6/17$1,443
This Qatar Airways deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1710:10 amCNX - IAD
2 stops33h 30mQatar Airways
Sun 8/319:00 pmIAD - CNX
2 stops25h 20mQatar Airways
Deal found 6/16$1,652
This Emirates deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/78:00 pmCNX - IAD
2 stops47h 40mEmirates
Mon 10/610:55 amIAD - CNX
2 stops45h 15mEmirates
Deal found 6/17$1,720
This Gotogate deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/412:45 amCNX - IAD
2 stops31h 10mAsiana Airlines
Wed 9/175:40 pmIAD - CNX
2 stops43h 00mAsiana Airlines
Deal found 6/15$1,827
This Korean Air deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1611:15 pmCNX - IAD
2 stops36h 19mKorean Air
Fri 9/51:15 pmIAD - CNX
1 stop44h 30mKorean Air
Deal found 6/16$1,851
This Air China deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/411:05 pmCNX - IAD
1 stop31h 25mAir China
Tue 9/911:00 pmIAD - CNX
1 stop35h 50mAir China
Deal found 6/17$2,266

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 18, 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

Wed 7/16

4:55 pm-3:20 pm

2 stops33h 25m

Washington, D.C. Dulles Intl

Mon 9/1

10:20 pm-7:10 pm

2 stops33h 50m

$1,237

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sun 7/20

8:00 pm-4:15 pm

2 stops55h 15m

Washington, D.C. Dulles Intl

Tue 9/2

5:45 pm-1:45 pm

2 stops33h 00m

$1,289

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 7/18

11:15 am-4:15 pm

2 stops40h 00m

Washington, D.C. Dulles Intl

Tue 9/2

8:45 pm-1:45 pm

2 stops30h 00m

$1,310

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 7/30

11:20 am-6:50 am

2 stops30h 30m

Washington, D.C. Dulles Intl

Mon 8/18

6:13 pm-10:20 am

2 stops29h 07m

$1,321

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 8/5

11:35 am-4:25 pm

2 stops39h 50m

Washington, D.C. Dulles Intl

Wed 9/17

6:09 pm-10:25 am

2 stops29h 16m

$1,387

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 7/18

9:10 pm-3:35 pm

3 stops29h 25m

Washington, D.C. Dulles Intl

Tue 9/2

5:25 pm-7:10 pm

2 stops38h 45m

$1,419

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 8/4

11:15 pm-5:57 am

2 stops41h 42m

Washington, D.C. Dulles Intl

Sun 9/14

6:10 am-9:55 pm

2 stops28h 45m

$1,443

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 7/17

10:10 am-8:40 am

2 stops33h 30m

Washington, D.C. Dulles Intl

Sun 8/31

9:00 pm-9:20 am

2 stops25h 20m

$1,652

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 8/7

8:00 pm-8:40 am

2 stops47h 40m

Washington, D.C. Dulles Intl

Mon 10/6

10:55 am-7:10 pm

2 stops45h 15m

$1,720

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Mon 8/4

12:45 am-8:55 pm

2 stops31h 10m

Washington, D.C. Dulles Intl

Wed 9/17

5:40 pm-11:40 pm

2 stops43h 00m

$1,827

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 20 results
1
2

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 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.

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 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.

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 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).

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 June 18, 2025.
EVA Air
8.4
Very good
1,205 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,205 reviews
EVA Air
8.4
Very good
1,205 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,090 reviews
EVA Air
8.4
Very good
1,205 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
742 reviews
EVA Air
8.4
Very good
1,205 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Asiana Airlines
8.2
Very good
441 reviews
EVA Air
8.4
Very good
1,205 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Emirates
8.1
Very good
3,273 reviews
EVA Air
8.4
Very good
1,205 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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?

    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 1 airline.

  • What are the cheapest airlines to fly from Chiang Mai to Washington, D.C. Dulles Intl Airport one-way?

    One-way options have recently been found by users for as low as $648 on Korean Air. Other airlines that offer cheap prices include Delta from $666 and Air China from $906 one-way.

  • 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.

  • What is the cheapest month to book a flight from Chiang Mai to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Chiang Mai to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Chiang Mai to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $347). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chiang Mai?

Book flights to Chiang Mai if you plan to visit one of these locations
Arlington
Woodbridge
Alexandria
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Fairfax
Gaithersburg
Easton
Towson
Manassas
Falls Church
Rockville
Springfield
National Harbor
Dundalk
Waldorf
Bowie
Hanover

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.
Suvarnabhumi to Dulles Intl flights
Suvarnabhumi to Baltimore flights
Suvarnabhumi to Reagan-National flights
Chiang Mai to Reagan-National flights
Chiang Mai to Baltimore 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 2,558,603 searches. Data last updated June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$854Average$1,302FlexibilityNo cancel feeOn-timeN/A

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