Cheap flights from Washington, D.C. (WAS) to Chiang Mai (CNX) from $851

This is the cheapest one-way flight price, found on 3/30. Prices may vary by date and flight preferences.
WAS — CNX
Apr 4 — Apr 111

The best prices from Washington, D.C. to Chiang Mai are usually found in May or September, booked 59 days in advance, depart on a Tuesday or Wednesday and return on a Monday

How to find the cheapest flight from Washington, D.C. (WAS) to Chiang Mai (CNX)

All the information you need to plan the best WAS to CNX flight in 2023: compare Washington, D.C. to Chiang Mai flight prices with the expected peak season, weather and rainfall in Chiang Mai.

WAS - CNX

Price

$1,165 - $2,088

CNX

Temperature

69.8 - 84.2 °F

CNX

Rainfall

0 - 9.8 inches

Popular inJuneHigh demand for flights, 26% potential price rise
Cheapest inMayBest time to find cheap flights, 25% potential price drop
Average price$1,383Average for round-trip flights in March 2023
Round-trip from$1,165From Washington, D.C. (WAS) to Chiang Mai

Cheap flights from Washington, D.C. to Chiang Mai in March, April 2023

The best prices found for WAS to CNX flights for March, April

Washington, D.C. to Chiang Mai 2023 flight deals

Cheap flights to Chiang Mai from Washington, D.C. found for this year

Cheap Etihad Airways flights from Washington, D.C. to Chiang Mai

Cheap Delta flights from Washington, D.C. to Chiang Mai

Last minute flights from Washington, D.C. to Chiang Mai

Late deals on return flights to Chiang Mai from Washington, D.C., departing today and this week

One-way flights to Chiang Mai from Washington, D.C.

The cheapest one-way flights from Washington, D.C. to Chiang Mai

Find flights from Washington, D.C. to Chiang Mai within your budget

Use the slider to find flights from Washington, D.C. to Chiang Mai that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$1,206 - $1,711

Route

Depart

Return

Price

Washington, D.C. Dulles IntlChiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

2023-09-14

2 stops35h 30m

Chiang Mai

2023-10-19

2 stops32h 20m

Washington, D.C. Dulles IntlChiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

2023-05-08

2 stops33h 50m

Chiang Mai

2023-05-16

2 stops42h 40m

Washington, D.C. Dulles IntlChiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

2023-09-14

2 stops34h 55m

Chiang Mai

2023-10-19

3 stops40h 10m

Washington, D.C. Dulles IntlChiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

2023-05-08

3 stops34h 55m

Chiang Mai

2023-05-16

3 stops42h 00m

Washington, D.C. Dulles IntlChiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

2023-05-04

2 stops49h 05m

Chiang Mai

2023-05-21

2 stops36h 00m

Washington, D.C. Dulles IntlChiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

2023-09-14

1 stop21h 30m

Chiang Mai

2023-10-19

1 stop23h 00m

Washington, D.C. Dulles IntlChiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

2023-09-14

2 stops28h 45m

Chiang Mai

2023-10-19

1 stop23h 00m

Washington, D.C. Dulles IntlChiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

2023-04-29

2 stops49h 20m

Chiang Mai

2023-05-08

2 stops48h 20m

Washington, D.C. Dulles IntlChiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

2023-06-12

2 stops49h 56m

Chiang Mai

2023-06-18

2 stops46h 09m

Flights are sorted by cheapest first

Deals found on 3/29

Reviews of Airlines Servicing Chiang Mai

Korean Air
8.2
Very good
214 reviews

Comfort

8.1

Food

8.0

Overall

8.2

Crew

8.6

Boarding

8.3

Entertainment

8.1

Reviews

1 / 10

The boarding procedure was chaotic from ICN to CRK on JinAir. With no announcement, all of a sudden, a service team member started scanning the gate waiting area for carry-on luggage. She then randomly asked passengers to come up to the service desk with their carry-on and began to check-in the luggage without notifying them. That made the passengers utterly confused and some declined the check-in. I was not one of the chosen ones to check-in my carry-on. However, my Mother has wheelchair service and as we were getting our boarding passes scanned and as I followed behind, only then did the wheelchair service assistant mention to me that my carry-on was oversized and that I needed to check it in! My carry-on was the size of a small duffle bag equipped with wheels. She looked twice at it, then decided for me to go ahead and board the aircraft and check if my luggage will fit in the overhead bins. If not, it will need to get checked in. Thankfully, it fit! I noticed someone else had placed an even larger sized luggage in the overhead bin and that fit perfectly as well. Also, the sandwich served during the flight was spicy. My Mother could not eat it and there was no alternative snack available so my Mother felt hungry the rest of the 3.5 hr flight.

Korean Air
8.2
Very good
214 reviews
Korean Air
8.2
Very good
214 reviews

Comfort

8.1

Food

8.0

Overall

8.2

Crew

8.6

Boarding

8.3

Entertainment

8.1

Reviews

1 / 10

The boarding procedure was chaotic from ICN to CRK on JinAir. With no announcement, all of a sudden, a service team member started scanning the gate waiting area for carry-on luggage. She then randomly asked passengers to come up to the service desk with their carry-on and began to check-in the luggage without notifying them. That made the passengers utterly confused and some declined the check-in. I was not one of the chosen ones to check-in my carry-on. However, my Mother has wheelchair service and as we were getting our boarding passes scanned and as I followed behind, only then did the wheelchair service assistant mention to me that my carry-on was oversized and that I needed to check it in! My carry-on was the size of a small duffle bag equipped with wheels. She looked twice at it, then decided for me to go ahead and board the aircraft and check if my luggage will fit in the overhead bins. If not, it will need to get checked in. Thankfully, it fit! I noticed someone else had placed an even larger sized luggage in the overhead bin and that fit perfectly as well. Also, the sandwich served during the flight was spicy. My Mother could not eat it and there was no alternative snack available so my Mother felt hungry the rest of the 3.5 hr flight.

Delta
8.0
Very good
2,335 reviews
Korean Air
8.2
Very good
214 reviews

Comfort

8.1

Food

8.0

Overall

8.2

Crew

8.6

Boarding

8.3

Entertainment

8.1

Reviews

1 / 10

The boarding procedure was chaotic from ICN to CRK on JinAir. With no announcement, all of a sudden, a service team member started scanning the gate waiting area for carry-on luggage. She then randomly asked passengers to come up to the service desk with their carry-on and began to check-in the luggage without notifying them. That made the passengers utterly confused and some declined the check-in. I was not one of the chosen ones to check-in my carry-on. However, my Mother has wheelchair service and as we were getting our boarding passes scanned and as I followed behind, only then did the wheelchair service assistant mention to me that my carry-on was oversized and that I needed to check it in! My carry-on was the size of a small duffle bag equipped with wheels. She looked twice at it, then decided for me to go ahead and board the aircraft and check if my luggage will fit in the overhead bins. If not, it will need to get checked in. Thankfully, it fit! I noticed someone else had placed an even larger sized luggage in the overhead bin and that fit perfectly as well. Also, the sandwich served during the flight was spicy. My Mother could not eat it and there was no alternative snack available so my Mother felt hungry the rest of the 3.5 hr flight.

Qatar Airways
7.3
Good
1,153 reviews
Korean Air
8.2
Very good
214 reviews

Comfort

8.1

Food

8.0

Overall

8.2

Crew

8.6

Boarding

8.3

Entertainment

8.1

Reviews

1 / 10

The boarding procedure was chaotic from ICN to CRK on JinAir. With no announcement, all of a sudden, a service team member started scanning the gate waiting area for carry-on luggage. She then randomly asked passengers to come up to the service desk with their carry-on and began to check-in the luggage without notifying them. That made the passengers utterly confused and some declined the check-in. I was not one of the chosen ones to check-in my carry-on. However, my Mother has wheelchair service and as we were getting our boarding passes scanned and as I followed behind, only then did the wheelchair service assistant mention to me that my carry-on was oversized and that I needed to check it in! My carry-on was the size of a small duffle bag equipped with wheels. She looked twice at it, then decided for me to go ahead and board the aircraft and check if my luggage will fit in the overhead bins. If not, it will need to get checked in. Thankfully, it fit! I noticed someone else had placed an even larger sized luggage in the overhead bin and that fit perfectly as well. Also, the sandwich served during the flight was spicy. My Mother could not eat it and there was no alternative snack available so my Mother felt hungry the rest of the 3.5 hr flight.

Etihad Airways
7.1
Good
108 reviews
Korean Air
8.2
Very good
214 reviews

Comfort

8.1

Food

8.0

Overall

8.2

Crew

8.6

Boarding

8.3

Entertainment

8.1

Reviews

1 / 10

The boarding procedure was chaotic from ICN to CRK on JinAir. With no announcement, all of a sudden, a service team member started scanning the gate waiting area for carry-on luggage. She then randomly asked passengers to come up to the service desk with their carry-on and began to check-in the luggage without notifying them. That made the passengers utterly confused and some declined the check-in. I was not one of the chosen ones to check-in my carry-on. However, my Mother has wheelchair service and as we were getting our boarding passes scanned and as I followed behind, only then did the wheelchair service assistant mention to me that my carry-on was oversized and that I needed to check it in! My carry-on was the size of a small duffle bag equipped with wheels. She looked twice at it, then decided for me to go ahead and board the aircraft and check if my luggage will fit in the overhead bins. If not, it will need to get checked in. Thankfully, it fit! I noticed someone else had placed an even larger sized luggage in the overhead bin and that fit perfectly as well. Also, the sandwich served during the flight was spicy. My Mother could not eat it and there was no alternative snack available so my Mother felt hungry the rest of the 3.5 hr flight.

Related info for your journey

Useful info, stats and facts about Washington, D.C. to Chiang Mai flights.

Top 2 airlines flying from Washington, D.C. to Chiang Mai

The chart below displays the airlines Cheapflights users traveling from Washington, D.C. to Chiang Mai choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
DeltaCheapest$1,137Average$1,517FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
Korean AirCheapest$1,138Average$1,334FlexibilityNo cancel feeOn-time81%COVID-19 safety
Search Korean Air flights
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