$680+ Cheap flights from Reagan-National (DCA) to Chiang Mai (CNX)
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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — CNX
May 28 — Jun 41
Round-trip
1 adult, Economy
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Cheapest flights from Reagan-National to Chiang MaiExplore the most affordable flight options available from Reagan-National to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
Explore the most affordable flight options available from Reagan-National to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
This FlightHub deal was found by Cheapflights users on 4/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:30 am
DCA
- CNX
2 stops62h 05m
Multiple Airlines
Wed 11/1111:50 am
CNX
- DCA
2 stops44h 10m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,288
This FlightHub deal was found by Cheapflights users on 4/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Tue 9/811:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,297
This IEagle deal was found by Cheapflights users on 4/27. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Tue 5/2611:35 am
CNX
- DCA
2 stops43h 31m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,327
This FlightHub deal was found by Cheapflights users on 4/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Fri 9/1811:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,335
This Justfly.com deal was found by Cheapflights users on 4/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:30 am
DCA
- CNX
2 stops61h 55m
Multiple Airlines
Sun 10/2511:50 am
CNX
- DCA
2 stops43h 10m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$1,356
This Justfly.com deal was found by Cheapflights users on 4/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Thu 9/311:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$1,376
This FlightHub deal was found by Cheapflights users on 4/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Mon 9/711:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,397
This FlightHub deal was found by Cheapflights users on 4/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:00 pm
DCA
- CNX
2 stops30h 20m
Multiple Airlines
Tue 9/811:20 am
CNX
- DCA
2 stops45h 39m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,404
This FlightHub deal was found by Cheapflights users on 4/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/99:59 am
DCA
- CNX
2 stops37h 26m
Multiple Airlines
Thu 9/311:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,417
Best flights from Reagan-National to Chiang MaiDiscover carefully curated flight deals from Reagan-National to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
Discover carefully curated flight deals from Reagan-National to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
This Justfly.com deal was found by Cheapflights users on 4/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:30 am
DCA
- CNX
2 stops61h 55m
Multiple Airlines
Sun 10/2511:50 am
CNX
- DCA
2 stops43h 10m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$1,356
This Korean Air deal was found by Cheapflights users on 4/25. 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.
Thu 8/278:00 am
DCA
- CNX
2 stops25h 45m
Korean Air
Sun 9/69:45 pm
CNX
- DCA
2 stops27h 58m
Korean Air
Deal found 4/25![Korean Air logo]()
$1,838
This FlightHub deal was found by Cheapflights users on 4/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:59 pm
DCA
- CNX
2 stops28h 26m
Multiple Airlines
Mon 10/511:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,550
This IEagle deal was found by Cheapflights users on 4/27. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Sat 5/1611:35 am
CNX
- DCA
2 stops41h 24m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,614
This Korean Air deal was found by Cheapflights users on 4/25. 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.
Mon 8/318:00 am
DCA
- CNX
2 stops25h 45m
Korean Air
Sun 9/69:45 pm
CNX
- DCA
2 stops27h 58m
Korean Air
Deal found 4/25![Korean Air logo]()
$1,838
This Korean Air deal was found by Cheapflights users on 4/25. 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.
Sun 8/305:00 pm
DCA
- CNX
2 stops40h 45m
Korean Air
Wed 9/99:45 pm
CNX
- DCA
2 stops26h 02m
Korean Air
Deal found 4/25![Korean Air logo]()
$1,838
This Korean Air deal was found by Cheapflights users on 4/25. 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 9/27:30 am
DCA
- CNX
2 stops26h 15m
Korean Air
Mon 9/79:45 pm
CNX
- DCA
2 stops30h 22m
Korean Air
Deal found 4/25![Korean Air logo]()
$1,838
This Mytrip deal was found by Cheapflights users on 4/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2512:45 pm
DCA
- CNX
3 stops34h 00m
Multiple Airlines
Mon 6/16:35 am
CNX
- DCA
3 stops27h 38m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,847
This Korean Air deal was found by Cheapflights users on 4/25. 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.
Tue 9/16:00 am
DCA
- CNX
2 stops27h 45m
Korean Air
Sun 9/69:45 pm
CNX
- DCA
2 stops27h 58m
Korean Air
Deal found 4/25![Korean Air logo]()
$1,838
This FlightHub deal was found by Cheapflights users on 4/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Tue 6/211:35 am
CNX
- DCA
2 stops41h 24m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,869
This Korean Air deal was found by Cheapflights users on 4/25. 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 9/26:00 am
DCA
- CNX
2 stops27h 45m
Korean Air
Fri 9/49:45 pm
CNX
- DCA
2 stops34h 36m
Korean Air
Deal found 4/25![Korean Air logo]()
$1,878
This Justfly.com deal was found by Cheapflights users on 4/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:59 am
DCA
- CNX
2 stops61h 26m
Multiple Airlines
Fri 7/311:35 am
CNX
- DCA
2 stops46h 55m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$2,015
Last-minute flights from Reagan-National to Chiang MaiDiscover last-minute flight deals from Reagan-National to Chiang Mai. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from Reagan-National to Chiang Mai. Data last updated April 28, 2026 and is based on user searches.
This IEagle deal was found by Cheapflights users on 4/26. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:59 am
DCA
- CNX
2 stops37h 26m
Multiple Airlines
Wed 5/611:35 am
CNX
- DCA
2 stops45h 24m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,484
This oojo deal was found by Cheapflights users on 4/27. 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.
Thu 4/309:59 am
DCA
- CNX
2 stops37h 21m
China Airlines
Wed 5/611:20 am
CNX
- DCA
2 stops41h 39m
China Airlines
Deal found 4/27![China Airlines logo]()
$1,594
This Justfly.com deal was found by Cheapflights users on 4/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:59 am
DCA
- CNX
2 stops37h 26m
Multiple Airlines
Thu 5/711:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,485
This IEagle deal was found by Cheapflights users on 4/27. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Tue 5/2611:35 am
CNX
- DCA
2 stops43h 31m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,327
This Expedia deal was found by Cheapflights users on 4/23. 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.
Thu 5/79:59 am
DCA
- CNX
2 stops37h 26m
Multiple Airlines
Sun 5/1011:35 am
CNX
- DCA
2 stops46h 24m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$1,914
This IEagle deal was found by Cheapflights users on 4/27. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Sat 5/1611:35 am
CNX
- DCA
2 stops41h 24m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,614
This FlightHub deal was found by Cheapflights users on 4/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:59 am
DCA
- CNX
2 stops61h 26m
Multiple Airlines
Fri 7/311:35 am
CNX
- DCA
2 stops46h 55m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$2,015
This Mytrip deal was found by Cheapflights users on 4/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2512:45 pm
DCA
- CNX
3 stops34h 00m
Multiple Airlines
Mon 6/16:35 am
CNX
- DCA
3 stops27h 38m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,847
This FlightHub deal was found by Cheapflights users on 4/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Tue 6/211:35 am
CNX
- DCA
2 stops41h 24m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,869
This FlightHub deal was found by Cheapflights users on 4/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/319:59 am
DCA
- CNX
2 stops61h 26m
Multiple Airlines
Mon 6/811:35 am
CNX
- DCA
2 stops43h 31m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,927
One-way flights from Reagan-National to Chiang MaiSearch for one-way flight options from Reagan-National to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
Search for one-way flight options from Reagan-National to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/21:59 pm
DCA
- CNX
3 stops56h 46m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$680
This Justfly.com deal was found by Cheapflights users on 4/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:59 pm
DCA
- CNX
2 stops28h 26m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$742
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:59 pm
DCA
- CNX
2 stops28h 26m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$766
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:59 am
DCA
- CNX
3 stops43h 46m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$836
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:59 am
DCA
- CNX
3 stops42h 16m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$899
This FlightHub deal was found by Cheapflights users on 4/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:55 pm
DCA
- CNX
2 stops28h 30m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,009
This Korean Air deal was found by Cheapflights users on 4/26. 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.
Thu 5/217:59 am
DCA
- CNX
2 stops49h 46m
Korean Air
Deal found 4/26![Korean Air logo]()
$1,074
This Korean Air deal was found by Cheapflights users on 4/26. 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.
Fri 5/227:30 pm
DCA
- CNX
2 stops62h 15m
Korean Air
Deal found 4/26![Korean Air logo]()
$1,138
Find flight deals from Reagan-National to Chiang Mai
Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Chiang Mai (CNX). 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 April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,297 (FlightHub) |
One-way from | $680 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $1,489 |
Cheapflights Fare Finder
Customize your flight search to find flights from Reagan-National to Chiang Mai 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 April 28, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Chiang Mai that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Sat 10/17
9:30 am-10:25 am
2 stops61h 55m
Chiang Mai
Sun 10/25
11:50 am-8:00 pm
2 stops43h 10m
$1,356
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Tue 7/14
6:59 pm-10:25 am
2 stops28h 26m
Chiang Mai
Mon 10/5
11:35 am-8:00 pm
2 stops43h 25m
$1,550
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Sun 5/10
6:59 pm-10:25 am
2 stops52h 26m
Chiang Mai
Sat 5/16
11:35 am-5:59 pm
2 stops41h 24m
$1,614
Quickest round-trip
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Thu 8/27
8:00 am-8:45 pm
2 stops25h 45m
Chiang Mai
Sun 9/6
9:45 pm-2:43 pm
2 stops27h 58m
$1,838
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Mon 8/31
8:00 am-8:45 pm
2 stops25h 45m
Chiang Mai
Sun 9/6
9:45 pm-2:43 pm
2 stops27h 58m
$1,838
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Sun 8/30
5:00 pm-8:45 pm
2 stops40h 45m
Chiang Mai
Wed 9/9
9:45 pm-12:47 pm
2 stops26h 02m
$1,838
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Wed 9/2
7:30 am-8:45 pm
2 stops26h 15m
Chiang Mai
Mon 9/7
9:45 pm-5:07 pm
2 stops30h 22m
$1,838
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Tue 9/1
6:00 am-8:45 pm
2 stops27h 45m
Chiang Mai
Sun 9/6
9:45 pm-2:43 pm
2 stops27h 58m
$1,838
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Mon 5/25
12:45 pm-9:45 am
3 stops34h 00m
Chiang Mai
Mon 6/1
6:35 am-11:13 pm
3 stops27h 38m
$1,847
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Tue 5/26
6:59 pm-10:25 am
2 stops52h 26m
Chiang Mai
Tue 6/2
11:35 am-5:59 pm
2 stops41h 24m
$1,869
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Reagan-National to Chiang Mai
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Chiang Mai in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Chiang Mai flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C. Reagan-National Airport-Chiang Mai 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 Reagan-National to Chiang Mai
Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Reagan-National with our price prediction graph.
DCA-CNX
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.
Reviews of airlines servicing Chiang Mai
Get insights into the airlines that provide service to Chiang Mai. 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 Chiang Mai. Reviews last updated April 28, 2026.
Peruse reviews from past customers who have flown with Delta from Washington, D.C. Reagan-National Airport to Chiang Mai to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
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Reagan-National and Chiang Mai flights
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Top airline flying from Reagan-National to Chiang Mai
Discover the top airline that operate flights from Reagan-National to Chiang Mai. 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 April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,068 | Average$1,128 | FlexibilityNo cancel fee | On-timeN/A |