For afternoon departures, expect crowded check-in areas at IAD. Arrive early to navigate the busy terminals efficiently.
Round-trip from | $802 (Kiwi.com) |
---|---|
One-way from | $372 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,293 |
Good round-trip deal | $1,094 or less |
Good one-way deal | $555 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Seoul
DCA - GMP
DCAGMP
Washington, D.C. Reagan-National
lun. 11/10
11:10 am-7:50 pm
2 stops42h 40m
Seoul Gimpo Intl
lun. 11/17
12:00 pm-6:00 pm
2 stops44h 00m
BaltimoreIncheon
BWI - ICN
BWIICN
Baltimore/Washington
jue. 10/2
6:45 am-4:20 am
1 stop32h 35m
Incheon Intl
mar. 10/14
4:50 pm-9:30 pm
1 stop17h 40m
BaltimoreIncheon
BWI - ICN
BWIICN
Baltimore/Washington
sáb. 9/20
1:50 pm-4:00 am
1 stop25h 10m
Incheon Intl
jue. 10/2
6:50 pm-12:28 am
1 stop18h 38m
BaltimoreIncheon
BWI - ICN
BWIICN
Baltimore/Washington
sáb. 9/27
7:00 pm-4:20 am
1 stop20h 20m
Incheon Intl
sáb. 10/11
4:50 pm-5:50 am
1 stop26h 00m
BaltimoreIncheon
BWI - ICN
BWIICN
Baltimore/Washington
jue. 10/23
6:00 am-4:25 pm
1 stop21h 25m
Incheon Intl
mar. 10/28
6:00 pm-10:15 pm
1 stop17h 15m
BaltimoreIncheon
BWI - ICN
BWIICN
Baltimore/Washington
mar. 10/21
6:45 am-3:00 pm
1 stop19h 15m
Incheon Intl
jue. 11/27
12:45 pm-5:28 pm
1 stop18h 43m
BaltimoreIncheon
BWI - ICN
BWIICN
Baltimore/Washington
vie. 10/31
7:05 am-3:50 pm
1 stop19h 45m
Incheon Intl
mar. 11/4
6:00 pm-10:15 pm
1 stop18h 15m
BaltimoreIncheon
BWI - ICN
BWIICN
Baltimore/Washington
mié. 9/24
7:00 pm-4:20 am
1 stop20h 20m
Incheon Intl
mar. 10/7
11:30 am-9:30 pm
1 stop23h 00m
BaltimoreIncheon
BWI - ICN
BWIICN
Baltimore/Washington
jue. 9/25
9:46 am-4:25 pm
1 stop17h 39m
Incheon Intl
sáb. 10/11
10:15 am-4:54 pm
1 stop19h 39m
BaltimoreIncheon
BWI - ICN
BWIICN
Baltimore/Washington
jue. 10/2
6:55 pm-4:20 am
1 stop20h 25m
Incheon Intl
lun. 10/6
4:50 pm-9:30 pm
1 stop17h 40m
To ensure you get the cheapest price possible for a flight from Washington, D.C. to Seoul, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Seoul (average of $989). Flying from Washington, D.C. to Seoul in December is currently the most expensive (average of $1,621). 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 Washington, D.C. to Seoul, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 31% versus a flight in the afternoon.
Travelers seeking maximum savings on their Washington, D.C. to Seoul flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from WAS to SEL are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
Toronto (YYZ) – chosen by Cheapflights users on 47% of 1-stop itineraries from Washington, D.C. to Seoul on Cheapflights.
Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of $875.
Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 17h 30m.
Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 17m.
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Chris,Mar 2025
SEA - ICN
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$367 | Average$1,465 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$591 | Average$747 | FlexibilityNo cancel fee | On-time67% | |
Cheapest$716 | Average$1,137 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$759 | Average$1,530 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$800 | Average$993 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$864 | Average$1,276 | FlexibilityNo cancel fee | On-time67% | |
Cheapest$877 | Average$1,650 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$1,059 | Average$1,703 | FlexibilityNo cancel fee | On-time81% |