
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,084 (FlightHub) |
One-way from | $582 (Kiwi.com) |
Popular in | January |
Cheapest in | February |
Average price | $1,645 |
Good round-trip deal | $1,112 or less |
Good one-way deal | $559 or less |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Seoul
IAD - GMP
IADGMP
Washington, D.C. Dulles Intl
Tue 10/13
6:24 am-9:15 pm
2 stops25h 51m
Seoul Gimpo Intl
Wed 11/18
12:05 pm-5:00 am
2 stops30h 55m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Mon 5/11
5:59 pm-12:25 am
2 stops41h 26m
Incheon Intl
Sun 5/31
1:55 am-4:48 am
2 stops39h 53m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Tue 6/9
9:45 pm-5:40 pm
1 stop30h 55m
Incheon Intl
Tue 6/16
11:20 pm-11:35 am
1 stop25h 15m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Wed 5/13
5:59 pm-2:05 pm
2 stops31h 06m
Incheon Intl
Sat 6/20
1:55 am-4:58 am
2 stops40h 03m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Sun 7/19
1:20 pm-5:55 pm
Nonstop15h 35m
Incheon Intl
Wed 7/22
10:00 am-10:50 am
Nonstop13h 50m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Sun 5/24
1:20 pm-5:55 pm
Nonstop15h 35m
Incheon Intl
Wed 6/17
10:00 am-10:50 am
Nonstop13h 50m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Mon 7/6
1:20 pm-5:55 pm
Nonstop15h 35m
Incheon Intl
Mon 7/20
10:00 am-10:50 am
Nonstop13h 50m
Washington, D.C.Seoul
IAD - GMP
IADGMP
Washington, D.C. Dulles Intl
Tue 8/18
12:15 pm-10:20 pm
1 stop21h 05m
Seoul Gimpo Intl
Mon 8/31
7:55 pm-10:05 am
1 stop27h 10m
Washington, D.C.Seoul
IAD - GMP
IADGMP
Washington, D.C. Dulles Intl
Wed 9/16
7:00 am-10:40 am
2 stops38h 40m
Seoul Gimpo Intl
Sun 9/20
7:15 pm-5:40 am
2 stops47h 25m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Tue 7/14
10:21 am-5:50 pm
1 stop18h 29m
Incheon Intl
Tue 9/8
10:25 am-11:05 am
Nonstop13h 40m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
The best time to book flights from Washington, D.C. Dulles Intl Airport to Seoul is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Seoul (average of $197). Flying from Washington, D.C. Dulles Intl Airport to Seoul in November is currently the most expensive (average of $902). 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.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Seoul as you normally would.
The most flights from IAD to SEL are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
Entertainment
Food
Overall
Crew
Comfort
Boarding
Reviews
Chris,Mar 2025
SEA - ICN
Entertainment
Food
Overall
Crew
Comfort
Boarding
Reviews
Chris,Mar 2025
SEA - ICN
Entertainment
Food
Overall
Crew
Comfort
Boarding
Reviews
Chris,Mar 2025
SEA - ICN
Entertainment
Food
Overall
Crew
Comfort
Boarding
Reviews
Chris,Mar 2025
SEA - ICN
Entertainment
Food
Overall
Crew
Comfort
Boarding
Reviews
Chris,Mar 2025
SEA - ICN
Entertainment
Food
Overall
Crew
Comfort
Boarding
Reviews
Chris,Mar 2025
SEA - ICN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$317 | Average$1,576 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$392 | Average$1,770 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$590 | Average$1,270 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$685 | Average$1,361 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$729 | Average$915 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$816 | Average$1,476 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$902 | Average$1,108 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,552 | Average$1,820 | FlexibilityNo cancel fee | On-time81% |