
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,181 (FlightHub) |
One-way from | $690 (Kiwi.com) |
Popular in | January |
Cheapest in | February |
Average price | $1,301 |
Good round-trip deal | $1,264 or less |
Good one-way deal | $702 or less |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Wed 7/22
1:20 pm-5:55 pm
Nonstop15h 35m
Incheon Intl
Wed 8/19
10:00 am-10:50 am
Nonstop13h 50m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Mon 8/17
6:14 pm-11:30 am
2 stops28h 16m
Incheon Intl
Mon 8/24
8:05 pm-5:40 am
2 stops22h 35m
Washington, D.C.Seoul
IAD - GMP
IADGMP
Washington, D.C. Dulles Intl
Mon 8/24
6:09 am-9:15 pm
2 stops26h 06m
Seoul Gimpo Intl
Thu 9/3
7:15 pm-2:02 pm
2 stops31h 47m
Washington, D.C.Seoul
IAD - GMP
IADGMP
Washington, D.C. Dulles Intl
Wed 8/26
6:09 am-9:15 pm
2 stops26h 06m
Seoul Gimpo Intl
Mon 9/7
7:15 pm-6:27 pm
2 stops36h 12m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Wed 7/22
7:53 pm-5:30 pm
2 stops32h 37m
Incheon Intl
Wed 7/29
7:35 pm-6:45 pm
2 stops36h 10m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Mon 8/17
6:35 pm-4:20 am
1 stop20h 45m
Incheon Intl
Mon 8/24
4:50 pm-12:57 am
1 stop21h 07m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Mon 8/24
1:30 pm-5:40 pm
Nonstop15h 10m
Incheon Intl
Thu 9/3
10:25 am-11:05 am
Nonstop13h 40m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Mon 7/6
10:20 pm-9:55 am
1 stop22h 35m
Incheon Intl
Mon 7/20
9:30 am-2:20 pm
2 stops41h 50m
Washington, D.C.Seoul
IAD - GMP
IADGMP
Washington, D.C. Dulles Intl
Wed 9/16
6:52 am-9:15 pm
2 stops25h 23m
Seoul Gimpo Intl
Tue 10/13
7:15 pm-2:00 pm
2 stops31h 45m
Washington, D.C.Incheon
IAD - ICN
IADICN
Washington, D.C. Dulles Intl
Mon 8/17
1:30 pm-5:40 pm
Nonstop15h 10m
Incheon Intl
Mon 8/24
6:50 pm-12:34 am
1 stop18h 44m
| 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 |
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 $915). 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).
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.
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Chris,Mar 2025
SEA - ICN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$397 | Average$1,746 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$417 | Average$1,676 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$441 | Average$1,216 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$602 | Average$1,308 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$729 | Average$915 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$816 | Average$1,476 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$875 | Average$1,266 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$944 | Average$1,113 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,528 | Average$1,792 | FlexibilityNo cancel fee | On-time81% |