$502+ Cheap flights from Washington, D.C. (WAS) 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — CNX
Aug 30 — Sep 61
Round-trip
1 adult, Economy
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Cheapest flights from Washington, D.C. to Chiang MaiExplore the most affordable flight options available from Washington, D.C. to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.
Explore the most affordable flight options available from Washington, D.C. to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.
This Gotogate deal was found by Cheapflights users on 7/29. 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.
Wed 10/149:00 pm
IAD
- CNX
2 stops27h 15m
Multiple Airlines
Wed 10/289:10 am
CNX
- IAD
1 stop35h 55m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$989
This oojo deal was found by Cheapflights users on 7/29. 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 9/109:00 pm
IAD
- CNX
2 stops25h 20m
Multiple Airlines
Thu 9/178:00 pm
CNX
- IAD
2 stops30h 40m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,078
This Korean Air deal was found by Cheapflights users on 7/30. 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 11/111:50 am
IAD
- CNX
1 stop23h 05m
Korean Air
Mon 11/1612:15 am
CNX
- IAD
1 stop21h 35m
Korean Air
Deal found 7/30![Korean Air logo]()
$1,080
This FlightHub deal was found by Cheapflights users on 7/30. 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.
Thu 9/249:00 pm
IAD
- CNX
2 stops49h 20m
Multiple Airlines
Wed 10/144:55 pm
CNX
- IAD
2 stops26h 50m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,084
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/78:00 am
IAD
- CNX
2 stops26h 55m
Delta
Mon 2/2212:15 am
CNX
- IAD
2 stops29h 15m
Delta
Deal found 7/27![Delta logo]()
$1,100
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:00 am
DCA
- CNX
2 stops28h 55m
Delta
Mon 2/2212:15 am
CNX
- DCA
2 stops29h 50m
Delta
Deal found 7/27![Delta logo]()
$1,100
This oojo deal was found by Cheapflights users on 7/30. 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.
Fri 8/281:50 am
IAD
- CNX
1 stop21h 35m
EVA Air
Tue 9/298:00 pm
CNX
- IAD
2 stops37h 00m
EVA Air
Deal found 7/30![EVA Air logo]()
$1,102
This KAYAK deal was found by Cheapflights users on 7/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/239:00 pm
IAD
- CNX
2 stops27h 15m
Multiple Airlines
Mon 11/239:10 pm
CNX
- IAD
2 stops30h 45m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,104
This Korean Air deal was found by Cheapflights users on 7/29. 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 11/19:00 am
BWI
- CNX
2 stops49h 55m
Korean Air
Sun 11/1512:15 am
CNX
- BWI
2 stops24h 54m
Korean Air
Deal found 7/29![Korean Air logo]()
$1,172
This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:00 am
BWI
- CNX
3 stops49h 40m
Multiple Airlines
Sat 9/1910:30 am
CNX
- BWI
3 stops41h 57m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,179
This Justfly.com deal was found by Cheapflights users on 7/28. 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 9/236:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Sun 10/411:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,193
This Korean Air deal was found by Cheapflights users on 7/30. 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 11/17:00 am
BWI
- CNX
2 stops27h 55m
Korean Air
Mon 11/1612:15 am
CNX
- BWI
2 stops24h 54m
Korean Air
Deal found 7/30![Korean Air logo]()
$1,206
Best flights from Washington, D.C. to Chiang MaiDiscover carefully curated flight deals from Washington, D.C. to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2026.
Discover carefully curated flight deals from Washington, D.C. to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2026.
This Korean Air deal was found by Cheapflights users on 7/30. 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 1/175:00 pm
DCA
- CNX
2 stops41h 55m
Korean Air
Sat 1/3012:15 am
CNX
- DCA
2 stops29h 50m
Korean Air
Deal found 7/30![Korean Air logo]()
$1,096
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:00 am
DCA
- CNX
2 stops28h 55m
Delta
Mon 2/2212:15 am
CNX
- DCA
2 stops29h 50m
Delta
Deal found 7/27![Delta logo]()
$1,100
This EVA Air deal was found by Cheapflights users on 7/28. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:15 am
IAD
- CNX
1 stop22h 10m
EVA Air
Thu 9/178:00 pm
CNX
- IAD
2 stops37h 00m
EVA Air
Deal found 7/28![EVA Air logo]()
$1,211
This FlightHub deal was found by Cheapflights users on 7/28. 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 11/16:12 pm
BWI
- CNX
2 stops28h 23m
Multiple Airlines
Mon 11/1611:50 am
CNX
- BWI
2 stops29h 50m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,232
This oojo deal was found by Cheapflights users on 7/29. 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.
Sat 9/127:15 pm
BWI
- CNX
2 stops28h 05m
China Airlines
Sat 9/1911:20 am
CNX
- BWI
2 stops30h 10m
China Airlines
Deal found 7/29![China Airlines logo]()
$1,296
This oojo deal was found by Cheapflights users on 7/30. 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.
Mon 1/186:11 pm
BWI
- CNX
2 stops33h 49m
STARLUX Airlines
Tue 2/95:00 pm
CNX
- BWI
2 stops60h 11m
STARLUX Airlines
Deal found 7/30![STARLUX Airlines logo]()
$1,355
This SWISS deal was found by Cheapflights users on 7/27. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:15 pm
IAD
- CNX
3 stops27h 30m
SWISS
Fri 12/1110:10 am
CNX
- IAD
2 stops41h 20m
SWISS
Deal found 7/27![SWISS logo]()
$1,385
This Korean Air deal was found by Cheapflights users on 7/28. 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 1/37:00 am
DCA
- CNX
2 stops27h 55m
Korean Air
Fri 2/1212:15 am
CNX
- DCA
2 stops29h 50m
Korean Air
Deal found 7/28![Korean Air logo]()
$1,136
This Delta deal was found by Cheapflights users on 7/28. 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.
Sun 1/1711:50 am
IAD
- CNX
1 stop23h 05m
Delta
Sat 1/3012:15 am
CNX
- IAD
2 stops29h 15m
Delta
Deal found 7/28![Delta logo]()
$1,266
This FlightHub deal was found by Cheapflights users on 7/27. 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.
Thu 8/207:15 pm
BWI
- CNX
2 stops28h 10m
Multiple Airlines
Thu 8/2711:35 am
CNX
- BWI
2 stops29h 55m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,270
This Korean Air deal was found by Cheapflights users on 7/30. 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 11/19:00 am
BWI
- CNX
2 stops49h 55m
Korean Air
Sun 11/1512:15 am
CNX
- BWI
2 stops24h 54m
Korean Air
Deal found 7/30![Korean Air logo]()
$1,173
This Korean Air deal was found by Cheapflights users on 7/30. 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 11/17:00 am
BWI
- CNX
2 stops27h 55m
Korean Air
Mon 11/1612:15 am
CNX
- BWI
2 stops24h 54m
Korean Air
Deal found 7/30![Korean Air logo]()
$1,206
This China Airlines deal was found by Cheapflights users on 7/29. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:15 pm
BWI
- CNX
2 stops28h 05m
Multiple Airlines
Sat 9/1911:20 am
CNX
- BWI
3 stops40h 15m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,335
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:00 am
BWI
- CNX
2 stops28h 55m
Delta
Thu 2/412:15 am
CNX
- BWI
2 stops27h 25m
Delta
Deal found 7/27![Delta logo]()
$1,340
This SWISS deal was found by Cheapflights users on 7/30. 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.
Sat 8/296:30 pm
IAD
- CNX
3 stops32h 15m
SWISS
Tue 9/298:00 pm
CNX
- IAD
3 stops53h 00m
SWISS
Deal found 7/30![SWISS logo]()
$1,658
This EVA Air deal was found by Cheapflights users on 7/31. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:20 pm
BWI
- CNX
2 stops35h 05m
Multiple Airlines
Mon 9/2111:35 am
CNX
- BWI
3 stops35h 10m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$1,518
This Korean Air deal was found by Cheapflights users on 7/28. 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 1/1711:50 am
IAD
- CNX
1 stop23h 05m
Korean Air
Sat 1/3012:15 am
CNX
- IAD
1 stop21h 35m
Korean Air
Deal found 7/28![Korean Air logo]()
$1,478
This Delta deal was found by Cheapflights users on 7/30. 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.
Thu 12/244:15 pm
IAD
- CNX
2 stops42h 40m
Delta
Fri 1/1512:15 am
CNX
- IAD
2 stops35h 36m
Delta
Deal found 7/30![Delta logo]()
$1,641
This China Airlines deal was found by Cheapflights users on 7/27. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/710:40 am
BWI
- CNX
2 stops35h 45m
Multiple Airlines
Fri 2/511:25 am
CNX
- BWI
3 stops41h 50m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,560
This SWISS deal was found by Cheapflights users on 7/27. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/78:10 pm
IAD
- CNX
2 stops29h 35m
SWISS
Fri 2/510:10 am
CNX
- IAD
3 stops40h 20m
SWISS
Deal found 7/27![SWISS logo]()
$1,893
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Thu 11/128:00 am
DCA
- CNX
2 stops44h 00m
Multiple Airlines
Wed 11/255:00 pm
CNX
- DCA
2 stops64h 59m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,644
This Korean Air deal was found by Cheapflights users on 7/31. 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 8/101:30 pm
IAD
- CNX
1 stop44h 15m
Korean Air
Wed 9/99:45 pm
CNX
- IAD
1 stop24h 20m
Korean Air
Deal found 7/31![Korean Air logo]()
$1,820
This Korean Air deal was found by Cheapflights users on 7/28. 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 9/231:15 pm
IAD
- CNX
1 stop44h 30m
Korean Air
Sun 10/49:45 pm
CNX
- IAD
1 stop24h 20m
Korean Air
Deal found 7/28![Korean Air logo]()
$1,820
This Korean Air deal was found by Cheapflights users on 7/26. 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.
Sun 9/136:10 am
DCA
- CNX
2 stops51h 35m
Korean Air
Thu 9/179:45 pm
CNX
- DCA
2 stops28h 10m
Korean Air
Deal found 7/26![Korean Air logo]()
$1,856
This Korean Air deal was found by Cheapflights users on 7/29. 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 10/198:03 am
IAD
- CNX
2 stops25h 42m
Korean Air
Fri 10/239:45 pm
CNX
- IAD
1 stop24h 20m
Korean Air
Deal found 7/29![Korean Air logo]()
$1,858
This Korean Air deal was found by Cheapflights users on 7/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:00 am
DCA
- CNX
2 stops48h 45m
Korean Air
Fri 10/239:45 pm
CNX
- DCA
2 stops35h 04m
Korean Air
Deal found 7/27![Korean Air logo]()
$1,869
This Korean Air deal was found by Cheapflights users on 7/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:00 am
DCA
- CNX
2 stops49h 45m
Korean Air
Thu 8/279:45 pm
CNX
- DCA
2 stops30h 14m
Korean Air
Deal found 7/27![Korean Air logo]()
$2,061
This Korean Air deal was found by Cheapflights users on 7/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:02 am
DCA
- CNX
2 stops51h 43m
Korean Air
Thu 8/279:45 pm
CNX
- DCA
2 stops30h 14m
Korean Air
Deal found 7/27![Korean Air logo]()
$2,061
Last-minute flights from Washington, D.C. to Chiang MaiDiscover last-minute flight deals from Washington, D.C. to Chiang Mai. Data last updated July 31, 2026 and is based on user searches.
Discover last-minute flight deals from Washington, D.C. to Chiang Mai. Data last updated July 31, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 7/30. 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.
Sat 8/81:50 am
IAD
- CNX
1 stop21h 35m
EVA Air
Thu 9/38:00 pm
CNX
- IAD
2 stops37h 00m
EVA Air
Deal found 7/30![EVA Air logo]()
$1,240
This oojo deal was found by Cheapflights users on 7/27. 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.
Sat 8/81:50 am
IAD
- CNX
1 stop21h 35m
Multiple Airlines
Thu 9/39:10 pm
CNX
- IAD
2 stops35h 50m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,241
This FlightHub deal was found by Cheapflights users on 7/27. 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 8/98:00 am
DCA
- CNX
2 stops39h 25m
Multiple Airlines
Thu 9/311:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,223
This KAYAK deal was found by Cheapflights users on 7/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:00 pm
IAD
- CNX
2 stops29h 45m
Qatar Airways
Wed 9/92:35 pm
CNX
- IAD
2 stops36h 05m
Qatar Airways
Deal found 7/28![Qatar Airways logo]()
$1,126
This oojo deal was found by Cheapflights users on 7/30. 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.
Mon 8/109:00 pm
IAD
- CNX
2 stops27h 15m
Multiple Airlines
Wed 9/98:00 pm
CNX
- IAD
2 stops30h 40m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,211
This FlightHub deal was found by Cheapflights users on 7/27. 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.
Mon 8/171:50 am
IAD
- CNX
2 stops30h 20m
Multiple Airlines
Thu 8/2711:35 am
CNX
- IAD
2 stops40h 09m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,173
This Justfly.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/171:50 am
IAD
- CNX
2 stops30h 20m
EVA Air
Tue 8/258:00 pm
CNX
- IAD
2 stops37h 30m
EVA Air
Deal found 7/27![EVA Air logo]()
$1,216
This KAYAK deal was found by Cheapflights users on 7/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:00 pm
IAD
- CNX
2 stops25h 20m
Multiple Airlines
Tue 8/258:00 pm
CNX
- IAD
2 stops30h 40m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,203
This FlightHub deal was found by Cheapflights users on 7/27. 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 8/186:07 pm
BWI
- CNX
2 stops29h 18m
Multiple Airlines
Thu 8/2711:35 am
CNX
- BWI
2 stops29h 55m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,232
This FlightHub deal was found by Cheapflights users on 7/27. 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 8/196:59 pm
DCA
- CNX
2 stops52h 26m
Multiple Airlines
Thu 8/2711:35 am
CNX
- DCA
2 stops43h 25m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,260
This FlightHub deal was found by Cheapflights users on 7/27. 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.
Thu 8/207:15 pm
BWI
- CNX
2 stops28h 10m
Multiple Airlines
Thu 8/2711:35 am
CNX
- BWI
2 stops29h 55m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,270
This oojo deal was found by Cheapflights users on 7/30. 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.
Fri 8/281:50 am
IAD
- CNX
1 stop21h 35m
EVA Air
Tue 9/298:00 pm
CNX
- IAD
2 stops37h 00m
EVA Air
Deal found 7/30![EVA Air logo]()
$1,102
One-way flights from Washington, D.C. to Chiang MaiSearch for one-way flight options from Washington, D.C. to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
Search for one-way flight options from Washington, D.C. to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:20 pm
IAD
- CNX
2 stops55h 05m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$502
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:10 pm
IAD
- CNX
2 stops42h 15m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/306:20 am
IAD
- CNX
3 stops53h 30m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$558
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/316:20 am
IAD
- CNX
3 stops53h 25m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$562
This oojo deal was found by Cheapflights users on 7/29. 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.
Mon 8/311:50 am
IAD
- CNX
1 stop21h 35m
EVA Air
Deal found 7/29![EVA Air logo]()
$564
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Thu 9/36:20 am
IAD
- CNX
3 stops48h 40m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$568
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/23:10 pm
IAD
- CNX
2 stops40h 25m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$574
This Trip.com deal was found by Cheapflights users on 7/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:30 am
DCA
- CNX
2 stops37h 50m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$612
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Sat 8/297:15 pm
BWI
- CNX
2 stops28h 05m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$631
This FlightHub deal was found by Cheapflights users on 7/27. 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 9/19:30 am
DCA
- CNX
2 stops37h 55m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$654
This FlightHub deal was found by Cheapflights users on 7/27. 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 9/17:15 pm
BWI
- CNX
2 stops28h 10m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$664
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:30 am
DCA
- CNX
2 stops37h 55m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$709
Find flight deals from Washington, D.C. to Chiang Mai
Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 July 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $989 (Gotogate) |
One-way from | $502 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $1,195 |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. 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 July 31, 2026.
Use the filters below to find and compare flights from Washington, D.C. 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
Sun 1/17
5:00 pm-10:55 pm
2 stops41h 55m
Chiang Mai
Sat 1/30
12:15 am-6:05 pm
2 stops29h 50m
$1,096
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Mon 12/7
6:00 am-10:55 pm
2 stops28h 55m
Chiang Mai
Mon 2/22
12:15 am-6:05 pm
2 stops29h 50m
$1,100
Washington, D.C.Chiang Mai
DCA - CNX
DCACNX
Washington, D.C. Reagan-National
Sun 1/3
7:00 am-10:55 pm
2 stops27h 55m
Chiang Mai
Fri 2/12
12:15 am-6:05 pm
2 stops29h 50m
$1,136
BaltimoreChiang Mai
BWI - CNX
BWICNX
Baltimore/Washington
Sun 11/1
9:00 am-10:55 pm
2 stops49h 55m
Chiang Mai
Sun 11/15
12:15 am-1:09 pm
2 stops24h 54m
$1,173
BaltimoreChiang Mai
BWI - CNX
BWICNX
Baltimore/Washington
Sun 11/1
7:00 am-10:55 pm
2 stops27h 55m
Chiang Mai
Mon 11/16
12:15 am-1:09 pm
2 stops24h 54m
$1,206
Washington, D.C.Chiang Mai
IAD - CNX
IADCNX
Washington, D.C. Dulles Intl
Sat 9/12
1:15 am-10:25 am
1 stop22h 10m
Chiang Mai
Thu 9/17
8:00 pm-10:00 pm
2 stops37h 00m
$1,211
BaltimoreChiang Mai
BWI - CNX
BWICNX
Baltimore/Washington
Sun 11/1
6:12 pm-10:35 am
2 stops28h 23m
Chiang Mai
Mon 11/16
11:50 am-5:40 am
2 stops29h 50m
$1,232
Washington, D.C.Chiang Mai
IAD - CNX
IADCNX
Washington, D.C. Dulles Intl
Sun 1/17
11:50 am-10:55 pm
1 stop23h 05m
Chiang Mai
Sat 1/30
12:15 am-5:30 pm
2 stops29h 15m
$1,266
BaltimoreChiang Mai
BWI - CNX
BWICNX
Baltimore/Washington
Thu 8/20
7:15 pm-10:25 am
2 stops28h 10m
Chiang Mai
Thu 8/27
11:35 am-6:30 am
2 stops29h 55m
$1,270
BaltimoreChiang Mai
BWI - CNX
BWICNX
Baltimore/Washington
Sat 9/12
7:15 pm-10:20 am
2 stops28h 05m
Chiang Mai
Sat 9/19
11:20 am-6:30 am
2 stops30h 10m
$1,296
Showing 1-10 of 58 resultsSorted by cheapest first
Compare providers for flights from Washington, D.C. 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 Washington, D.C. to Chiang Mai in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C.-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.-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Chiang Mai flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C.-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.-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 Washington, D.C. to Chiang Mai
Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Washington, D.C. with our price prediction graph.
WAS-CNX
DCA-CNX
IAD-CNX
BWI-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.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. to Chiang Mai
WAS-CNX
DCA-CNX
IAD-CNX
BWI-CNX
What is the cheapest month to book a flight from Washington, D.C. to Chiang Mai?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Chiang Mai (average of $1,143). Flying from Washington, D.C. to Chiang Mai in June is currently the most expensive (average of $1,696). 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.
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 July 31, 2026.
See what other customers who have flown with EVA Air,Korean Air, andDelta from Washington, D.C. to Chiang Mai have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.4
Comfort
8.3
Food
8.1
Overall
8.5
Crew
8.7
Entertainment
8.0
Reviews
1 / 20
10.0
ExcellentDaisy,May 2026
SFO - TPE
Boarding
8.4
Comfort
8.3
Food
8.1
Overall
8.5
Crew
8.7
Entertainment
8.0
Reviews
1 / 20
10.0
ExcellentDaisy,May 2026
SFO - TPE
Boarding
8.4
Comfort
8.3
Food
8.1
Overall
8.5
Crew
8.7
Entertainment
8.0
Reviews
1 / 20
10.0
ExcellentDaisy,May 2026
SFO - TPE
Boarding
8.4
Comfort
8.3
Food
8.1
Overall
8.5
Crew
8.7
Entertainment
8.0
Reviews
1 / 20
10.0
ExcellentDaisy,May 2026
SFO - TPE
Related info for your journey
Find useful and relevant information for your journey from Washington, D.C. to Chiang Mai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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
Chiang Mai flight routes
Complete your trip
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Alternative routes for Washington, D.C. to Chiang Mai
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Chiang Mai
Explore flights to Chiang Mai departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 31, 2026.
Complete your trip
Complete your trip to Chiang Mai by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Washington, D.C. to Chiang Mai by cabin class
Find flights from Washington, D.C. to Chiang Mai, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington, D.C. and Chiang Mai flights
Browse other Washington, D.C. and Chiang Mai flight options. Last updated on July 31, 2026.
Other flights from Washington, D.C.
Browse through other flights departing from Washington, D.C.. Flights are based on user searches made on Cheapflights and were last updated on July 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Washington, D.C. to Chiang Mai flights
Consider these flights traveling from Washington, D.C. to Chiang Mai.
Top 3 airlines flying from Washington, D.C. to Chiang Mai
Discover the top 3 airlines that operate flights from Washington, D.C. 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 July 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$673 | Average$1,477 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$798 | Average$1,268 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,040 | Average$1,292 | FlexibilityNo cancel fee | On-time74% |