
Round-trip from | $921 (IEagle)  | 
|---|---|
One-way from | $542 (Air China)  | 
Popular in | August | 
Cheapest in | July | 
Average price | $1,115 | 
Fly from
Fly to
Route
Depart
Return
Price
BangkokWashington, D.C.
BKK - DCA
BKKDCA
Bangkok Suvarnabhumi
Fri 12/19
7:10 am-11:49 pm
2 stops28h 39m
Washington, D.C. Reagan-National
Fri 1/9
2:00 pm-11:25 am
3 stops33h 25m
BangkokWashington, D.C.
BKK - IAD
BKKIAD
Bangkok Suvarnabhumi
Thu 3/26
4:55 pm-11:44 am
3 stops29h 49m
Washington, D.C. Dulles Intl
Tue 5/12
5:35 pm-4:35 am
2 stops48h 00m
BangkokWashington, D.C.
BKK - IAD
BKKIAD
Bangkok Suvarnabhumi
Wed 2/18
8:00 am-8:30 pm
2 stops24h 30m
Washington, D.C. Dulles Intl
Sun 2/22
9:45 am-6:30 am
2 stops32h 45m
BangkokWashington, D.C.
BKK - IAD
BKKIAD
Bangkok Suvarnabhumi
Sun 2/15
2:15 am-5:55 am
2 stops39h 40m
Washington, D.C. Dulles Intl
Sun 3/22
7:00 am-10:45 am
2 stops40h 45m
BangkokWashington, D.C.
BKK - DCA
BKKDCA
Bangkok Suvarnabhumi
Tue 11/18
8:15 am-10:26 am
2 stops38h 11m
Washington, D.C. Reagan-National
Sat 11/29
6:00 am-6:30 am
2 stops36h 30m
BangkokWashington, D.C.
BKK - IAD
BKKIAD
Bangkok Suvarnabhumi
Thu 3/5
9:40 am-9:50 am
1 stop36h 10m
Washington, D.C. Dulles Intl
Wed 4/15
1:15 pm-1:15 pm
1 stop37h 00m
BangkokWashington, D.C.
BKK - IAD
BKKIAD
Bangkok Suvarnabhumi
Mon 2/16
9:40 am-9:50 am
1 stop36h 10m
Washington, D.C. Dulles Intl
Sun 3/22
12:50 pm-11:20 pm
1 stop23h 30m
BangkokWashington, D.C.
BKK - DCA
BKKDCA
Bangkok Suvarnabhumi
Tue 3/10
12:55 am-10:56 pm
2 stops33h 01m
Washington, D.C. Reagan-National
Sun 3/15
6:30 am-12:45 am
2 stops31h 15m
BangkokWashington, D.C.
BKK - IAD
BKKIAD
Bangkok Suvarnabhumi
Tue 3/31
11:30 pm-12:07 am
2 stops35h 37m
Washington, D.C. Dulles Intl
Wed 7/15
9:30 am-9:45 pm
2 stops25h 15m
BangkokWashington, D.C.
BKK - IAD
BKKIAD
Bangkok Suvarnabhumi
Wed 3/4
12:55 am-12:24 am
2 stops35h 29m
Washington, D.C. Dulles Intl
Wed 4/15
9:30 am-11:40 pm
2 stops27h 10m
Currently, March is the cheapest month in which you can book a flight from Thailand to District of Columbia (average of $917). Flying from Thailand to District of Columbia in December is currently the most expensive (average of $1,084). 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.
When flying from Thailand to District of Columbia, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 19% versus a flight in the evening.
Travelers seeking maximum savings on their Thailand to District of Columbia flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Entertainment
Food
Comfort
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Overall
Boarding
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$992 | Average$1,107 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,011 | Average$1,316 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,033 | Average$1,169 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,143 | Average$1,196 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,371 | Average$1,523 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$1,401 | Average$1,520 | FlexibilityNo cancel fee | On-time71% |