
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $820 (WhyPayMore) |
One-way from | $444 (Kiwi.com) |
Popular in | August |
Cheapest in | November |
Average price | $773 |
Good round-trip deal | $754 or less |
Good one-way deal | $613 or less |
Fly from
Fly to
Route
Depart
Return
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Wed 5/6
11:30 am-9:06 pm
3 stops25h 36m
Seattle/Tacoma Intl
Wed 5/13
7:08 am-3:00 pm
1 stop15h 52m
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Sun 7/19
7:40 am-2:25 pm
1 stop22h 45m
Seattle/Tacoma Intl
Sun 8/9
4:30 pm-11:05 am
1 stop26h 35m
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Sun 7/19
7:40 am-2:25 pm
1 stop22h 45m
Seattle/Tacoma Intl
Sat 7/25
4:30 pm-11:05 am
1 stop26h 35m
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Mon 6/22
12:40 pm-6:32 pm
2 stops21h 52m
Seattle/Tacoma Intl
Wed 9/2
8:38 am-10:20 pm
2 stops21h 42m
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Tue 6/9
12:40 pm-6:33 pm
2 stops21h 53m
Seattle/Tacoma Intl
Tue 9/15
8:38 am-10:20 pm
2 stops21h 42m
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Fri 5/22
7:40 am-2:25 pm
1 stop22h 45m
Seattle/Tacoma Intl
Fri 5/29
4:30 pm-11:05 am
1 stop26h 35m
SeoulSeattle
GMP - SEA
GMPSEA
Seoul Gimpo Intl
Sun 6/28
7:40 am-6:32 pm
2 stops26h 52m
Seattle/Tacoma Intl
Wed 7/15
4:30 pm-11:05 am
1 stop26h 35m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Fri 5/1
4:50 pm-1:12 am
1 stop24h 22m
Seattle/Tacoma Intl
Mon 8/24
5:22 pm-4:20 am
1 stop18h 58m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Fri 5/29
9:05 pm-10:58 pm
1 stop17h 53m
Seattle/Tacoma Intl
Tue 6/16
1:05 pm-4:50 pm
Nonstop11h 45m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Thu 5/7
9:05 pm-10:58 pm
1 stop17h 53m
Seattle/Tacoma Intl
Thu 6/25
7:59 am-5:40 pm
1 stop17h 41m
| 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 Accuracy2 stars | Trust Score*2 stars |
To ensure you get the cheapest price possible for a flight from Seoul to Seattle, you should look to book at least 53 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, November is the cheapest month in which you can book a flight from Seoul to Seattle (average of $338). Flying from Seoul to Seattle in August is currently the most expensive (average of $659). 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 Seoul to Seattle as you normally would.
The most flights from SEL to SEA are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).
Vancouver (YVR) – chosen by Cheapflights users on 85% of 1-stop itineraries from Seoul to Seattle on Cheapflights.
Vancouver (YVR) is the most affordable 1-stop option, with an average round-trip price of $569.
Flights via Vancouver (YVR) have the shortest average one-way travel time for 1-stop routes: 14h 10m.
Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 2h 06m.
Crew
Overall
Comfort
Boarding
Food
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Overall
Comfort
Boarding
Food
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Overall
Comfort
Boarding
Food
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Overall
Comfort
Boarding
Food
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Overall
Comfort
Boarding
Food
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Crew
Overall
Comfort
Boarding
Food
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$866 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$472 | Average$501 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$476 | Average$590 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$477 | Average$619 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$483 | Average$744 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$485 | Average$728 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$583 | Average$638 | FlexibilityNo cancel fee | On-timeN/A |