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

Currently, August is the cheapest month in which you can book a flight from Chiang Mai to Washington, D.C. (average of $309). Flying from Chiang Mai to Washington, D.C. in June is currently the most expensive (average of $373). 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.

What is the cheapest day to fly from Chiang Mai to Washington, D.C.?

Travelers seeking maximum savings on their Chiang Mai to Washington, D.C. flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Chiang Mai to Washington, D.C.?

The most popular flight routes from Chiang Mai to Washington, D.C. are Chiang Mai - Washington, D.C. Dulles Intl, Chiang Mai - Baltimore/Washington and Chiang Mai - Washington, D.C. Reagan-National.

What is the cheapest day to fly round-trip from Chiang Mai to Washington, D.C.?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest time of day to fly from CNX to WAS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Mai to Washington, D.C. as you normally would.

Most accurate provider : When it comes to deals on Chiang Mai-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chiang Mai-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chiang Mai-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Chiang Mai-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams 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. 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.?

If you book a flight to Washington, D.C. 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. per day from 1 airline.

Can I find deals for flights from Chiang Mai to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Chiang Mai to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Chiang Mai to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Washington, D.C..

Can I find deals for business class flights from Chiang Mai to Washington, D.C.?

Yes. Cheapflights offers flight deals from Chiang Mai to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$818+ Flights from Chiang Mai to Washington, D.C. - Compare & Save Big

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1. Tell us where you want to go

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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 Washington, D.C.

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,171 (oojo)
One-way from	$818 (oojo)

Provider with most accurate pricing for Chiang Mai-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chiang Mai-Washington, D.C. (WAS) flights.

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From Chiang Mai to Washington, D.C. (WAS)

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One-way flight from Chiang Mai to Washington, D.C. (WAS)

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Find flight deals from Chiang Mai to Washington, D.C.

Cheapest flights from Chiang Mai to Washington, D.C.
Explore the most affordable flight options available from Chiang Mai to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Fri 6/611:35 amCNX - IAD

2 stops39h 39mEVA Air

Wed 7/238:19 pmIAD - CNX

2 stops27h 06mEVA Air

Deal found 4/30

$1,171

Wed 9/1711:35 amCNX - IAD

2 stops30h 57mMultiple Airlines

Wed 10/156:55 pmIAD - CNX

2 stops28h 30mMultiple Airlines

Deal found 4/30

$1,197

Wed 9/1711:15 pmCNX - IAD

1 stop22h 40mDelta

Wed 10/156:15 amIAD - CNX

2 stops28h 40mDelta

Deal found 4/30

$1,426

Wed 9/1711:15 pmCNX - IAD

1 stop22h 40mKorean Air

Wed 10/151:15 pmIAD - CNX

1 stop44h 30mKorean Air

Deal found 4/30

$2,546

Thu 6/512:45 amCNX - IAD

2 stops31h 35mAsiana Airlines

Wed 7/235:45 pmIAD - CNX

2 stops42h 55mAsiana Airlines

Deal found 4/30

$2,835

Best flights from Chiang Mai to Washington, D.C.
Discover carefully curated flight deals from Chiang Mai to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Fri 6/611:35 amCNX - IAD

2 stops39h 39mEVA Air

Wed 7/238:19 pmIAD - CNX

2 stops27h 06mEVA Air

Deal found 4/30

$1,171

Wed 9/1711:35 amCNX - IAD

2 stops30h 57mMultiple Airlines

Wed 10/156:55 pmIAD - CNX

2 stops28h 30mMultiple Airlines

Deal found 4/30

$1,197

Wed 9/1711:15 pmCNX - IAD

1 stop22h 40mDelta

Wed 10/156:15 amIAD - CNX

2 stops28h 40mDelta

Deal found 4/30

$1,426

Wed 9/1711:15 pmCNX - IAD

1 stop22h 40mKorean Air

Wed 10/151:15 pmIAD - CNX

1 stop44h 30mKorean Air

Deal found 4/30

$2,546

Thu 6/512:45 amCNX - IAD

2 stops31h 35mAsiana Airlines

Wed 7/235:45 pmIAD - CNX

2 stops42h 55mAsiana Airlines

Deal found 4/30

$2,835

One-way flights from Chiang Mai to Washington, D.C.
Search for one-way flight options from Chiang Mai to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Sat 7/1211:20 amCNX - IAD

2 stops30h 30mChina Airlines

Deal found 4/30

$818

Sat 7/125:20 pmCNX - DCA

2 stops39h 22mMultiple Airlines

Deal found 4/30

$895

Sat 7/1211:20 amCNX - BWI

2 stops29h 59mMultiple Airlines

Deal found 4/30

$937

Fri 7/1112:45 amCNX - IAD

2 stops34h 14mMultiple Airlines

Deal found 4/30

$996

Sat 7/1211:15 pmCNX - IAD

1 stop23h 00mKorean Air

Deal found 4/30

$2,359

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Mai to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 6/6

11:35 am-4:14 pm

2 stops39h 39m

Washington, D.C. Dulles Intl

Wed 7/23

8:19 pm-10:25 am

2 stops27h 06m

$1,171

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 9/17

11:35 am-7:32 am

2 stops30h 57m

Washington, D.C. Dulles Intl

Wed 10/15

6:55 pm-10:25 am

2 stops28h 30m

$1,197

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 9/17

11:15 pm-10:55 am

1 stop22h 40m

Washington, D.C. Dulles Intl

Wed 10/15

6:15 am-9:55 pm

2 stops28h 40m

$1,426

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 9/17

11:15 pm-10:55 am

1 stop22h 40m

Washington, D.C. Dulles Intl

Wed 10/15

1:15 pm-8:45 pm

1 stop44h 30m

$2,546

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Thu 6/5

12:45 am-9:20 pm

2 stops31h 35m

Washington, D.C. Dulles Intl

Wed 7/23

5:45 pm-11:40 pm

2 stops42h 55m

$2,835

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 7/12

11:20 am-6:50 am

2 stops30h 30m

$818

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sat 7/12

5:20 pm-9:42 pm

2 stops39h 22m

$895

Chiang MaiBaltimore

CNX - BWI

CNXBWI

Chiang Mai

Sat 7/12

11:20 am-6:19 am

2 stops29h 59m

$937

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Fri 7/11

12:45 am-11:59 pm

2 stops34h 14m

$996

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Sat 7/12

11:15 pm-11:15 am

1 stop23h 00m

$2,359

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Most accurate provider: When it comes to deals on Chiang Mai-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chiang Mai-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chiang Mai-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Chiang Mai-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams 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. 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 Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. 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. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., 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 Washington, D.C.

EVA Air

8.4

Very good

1,186 reviews

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

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

1,069 reviews

EVA Air

8.4

Very good

1,186 reviews

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

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

China Airlines

8.3

Very good

732 reviews

EVA Air

8.4

Very good

1,186 reviews

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

Reviews

1 / 20

10.0

Excellent

Dale,Apr 2025

SFO - TPE

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

Delta

8.0

Very good

7,934 reviews

EVA Air

8.4

Very good

1,186 reviews

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

What airport do you fly from for flights from Chiang Mai to Washington, D.C.?
If you book a flight to Washington, D.C. 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. per day from 1 airline.
What are the most popular routes from Chiang Mai to Washington, D.C.?
The most popular flight routes from Chiang Mai to Washington, D.C. are Chiang Mai - Washington, D.C. Dulles Intl, Chiang Mai - Baltimore/Washington and Chiang Mai - Washington, D.C. Reagan-National.
Can I find deals for flights from Chiang Mai to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Chiang Mai to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Chiang Mai to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Washington, D.C..
Can I find deals for business class flights from Chiang Mai to Washington, D.C.?
Yes. Cheapflights offers flight deals from Chiang Mai to Washington, D.C. 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.?
Currently, August is the cheapest month in which you can book a flight from Chiang Mai to Washington, D.C. (average of $309). Flying from Chiang Mai to Washington, D.C. in June is currently the most expensive (average of $373). 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

Alexandria

Arlington

Woodbridge

Tysons

Fairfax

Springfield

Rockville

Fredericksburg

Silver Spring

Gaithersburg

Linthicum Heights

Falls Church

Laurel

Easton

Towson

Herndon

Bowie

National Harbor

Oxon Hill

Reston

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Chiang Mai to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$854	Average$1,306	FlexibilityNo cancel fee	On-timeN/A

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$818+ Cheap flights from Chiang Mai (CNX) to Washington, D.C. (WAS)

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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Chiang Mai to Washington, D.C. 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 Washington, D.C.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Find flight deals from Chiang Mai to Washington, D.C.

Cheapest flights from Chiang Mai to Washington, D.C.Explore the most affordable flight options available from Chiang Mai to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Explore the most affordable flight options available from Chiang Mai to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Mai to Washington, D.C. that are best for you.

Best time to book a flight from Chiang Mai to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Chiang Mai with our price prediction graph.

Cheapflights Insights

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

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Washington, D.C.. 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.?

What are the most popular routes from Chiang Mai to Washington, D.C.?

Can I find deals for flights from Chiang Mai to Washington, D.C. that include hotel bookings?

How can I find direct flights from Chiang Mai to Washington, D.C.?

Can I find deals for business class flights from Chiang Mai to Washington, D.C.?

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

Traveling to a place near Chiang Mai?

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 Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Chiang Mai to Washington, D.C.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Chiang Mai to Washington, D.C.
Explore the most affordable flight options available from Chiang Mai to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.