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Dulles Intl

$621+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — IAD
juin 10 — juin 171
mar. 6/10
mar. 6/17
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 juin 5, 2025.

Round-trip from

$1,355
(SWISS)

One-way from

$621
(Mytrip)

Popular in

January

Cheapest in

October

Average price

$1,573
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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Highest demand for flights based on searches. 5% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 juin 5, 2025.

This oojo deal was found by Cheapflights users on 6/4. 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.
ven. 6/611:35 amCNX - IAD
2 stops31h 01mEVA Air
mer. 7/238:19 pmIAD - CNX
2 stops27h 06mEVA Air
Deal found 6/4$1,155
This SWISS deal was found by Cheapflights users on 6/4. 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.
dim. 8/108:00 pmCNX - IAD
2 stops55h 15mSWISS
lun. 9/225:45 pmIAD - CNX
2 stops33h 00mSWISS
Deal found 6/4$1,355
This oojo deal was found by Cheapflights users on 6/4. 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.
sam. 7/1911:20 amCNX - IAD
2 stops31h 07mChina Airlines
sam. 7/268:19 pmIAD - CNX
2 stops51h 01mChina Airlines
Deal found 6/4$1,409
This Delta deal was found by Cheapflights users on 6/4. 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.
lun. 8/1111:15 pmCNX - IAD
2 stops34h 40mDelta
dim. 9/213:00 pmIAD - CNX
2 stops43h 55mDelta
Deal found 6/4$1,444
This Expedia deal was found by Cheapflights users on 6/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 8/912:45 amCNX - IAD
2 stops50h 40mMultiple Airlines
mer. 9/249:00 amIAD - CNX
2 stops27h 40mMultiple Airlines
Deal found 6/4$1,511
This Lufthansa deal was found by Cheapflights users on 6/4. 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.
jeu. 8/74:55 pmCNX - IAD
2 stops37h 30mLufthansa
jeu. 9/2510:20 pmIAD - CNX
2 stops33h 50mLufthansa
Deal found 6/4$1,717
This CheapOair deal was found by Cheapflights users on 6/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/512:45 amCNX - IAD
2 stops31h 35mAsiana Airlines
mer. 7/238:30 amIAD - CNX
2 stops52h 10mAsiana Airlines
Deal found 6/4$1,764
This Korean Air deal was found by Cheapflights users on 6/4. 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.
lun. 8/1111:15 pmCNX - IAD
2 stops50h 16mKorean Air
dim. 9/211:15 pmIAD - CNX
1 stop44h 30mKorean Air
Deal found 6/4$1,973
This Air China deal was found by Cheapflights users on 6/4. 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.
jeu. 8/711:05 pmCNX - IAD
1 stop31h 25mAir China
mar. 9/2311:00 pmIAD - CNX
1 stop35h 50mAir China
Deal found 6/4$2,456

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 juin 5, 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

dim. 8/10

8:00 pm-4:15 pm

2 stops55h 15m

Washington, D.C. Dulles Intl

lun. 9/22

5:45 pm-1:45 pm

2 stops33h 00m

$1,355

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

sam. 7/19

11:20 am-7:27 am

2 stops31h 07m

Washington, D.C. Dulles Intl

sam. 7/26

8:19 pm-10:20 am

2 stops51h 01m

$1,409

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

lun. 8/11

11:35 am-4:25 pm

2 stops39h 50m

Washington, D.C. Dulles Intl

mer. 9/24

6:09 pm-10:25 am

2 stops29h 16m

$1,413

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

lun. 8/11

11:15 pm-10:55 pm

2 stops34h 40m

Washington, D.C. Dulles Intl

dim. 9/21

3:00 pm-9:55 pm

2 stops43h 55m

$1,444

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

sam. 8/9

12:45 am-4:25 pm

2 stops50h 40m

Washington, D.C. Dulles Intl

mer. 9/24

9:00 am-11:40 pm

2 stops27h 40m

$1,511

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

jeu. 8/7

4:55 pm-7:25 pm

2 stops37h 30m

Washington, D.C. Dulles Intl

jeu. 9/25

10:20 pm-7:10 pm

2 stops33h 50m

$1,717

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

mer. 8/6

12:45 am-6:53 am

2 stops41h 08m

Washington, D.C. Dulles Intl

mer. 9/24

5:40 pm-11:40 pm

2 stops43h 00m

$1,913

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

lun. 8/11

11:15 pm-11:44 am

2 stops47h 29m

Washington, D.C. Dulles Intl

mar. 9/23

1:15 pm-8:45 pm

1 stop44h 30m

$1,973

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

jeu. 8/7

11:05 pm-7:30 pm

1 stop31h 25m

Washington, D.C. Dulles Intl

mar. 9/23

11:00 pm-9:50 pm

1 stop35h 50m

$2,456

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

mar. 6/24

5:45 pm-4:10 pm

3 stops33h 25m

$621

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/5

Showing 1-10 of 16 results
1
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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 juin 5, 2025.
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

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
1,200 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

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
1,085 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

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
735 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

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
446 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

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
3,263 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

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 flying from Chiang Mai to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on SWISS is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $1,355. Additional round-trip tickets that might be worth considering are offered by China Airlines and EVA Air, with the lowest prices starting at $1,409 and $1,413, respectively.

  • 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 $660 on Delta. Other airlines that offer cheap prices include Qatar Airways from $822 and Korean Air from $894 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 June is currently the most expensive (average of $352). 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
Alexandria
Woodbridge
Tysons
Silver Spring
Fairfax
Fredericksburg
Linthicum Heights
Gaithersburg
Falls Church
Laurel
Easton
Herndon
Towson
Sterling
Bowie
Rockville
Reston
National Harbor
Springfield

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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 juin 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$854Average$1,284FlexibilityNo cancel feeOn-timeN/A

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