
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $781 (Philippine Airlines) |
One-way from | $234 (iWofly) |
Popular in | June |
Cheapest in | November |
Average price | $1,113 |
Good round-trip deal | $1,480 or less |
Good one-way deal | $643 or less |
Fly from
Fly to
Route
Depart
Return
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Sat 8/22
8:30 pm-8:05 pm
1 stop39h 35m
Seattle/Tacoma Intl
Sun 8/30
11:10 pm-7:15 pm
1 stop28h 05m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Mon 12/14
7:20 am-6:35 pm
1 stop28h 15m
Seattle/Tacoma Intl
Mon 12/14
11:55 pm-5:55 am
1 stop37h 00m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Wed 8/5
8:30 pm-8:05 pm
1 stop39h 35m
Seattle/Tacoma Intl
Thu 8/20
11:10 pm-6:00 am
1 stop38h 50m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Thu 8/20
4:50 pm-9:41 pm
2 stops20h 51m
Seattle/Tacoma Intl
Tue 8/25
4:45 pm-4:20 am
2 stops19h 35m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Tue 7/7
11:30 am-7:03 pm
2 stops23h 33m
Seattle/Tacoma Intl
Tue 7/21
1:30 pm-4:20 am
1 stop22h 50m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Thu 11/5
8:00 pm-12:55 pm
Nonstop9h 55m
Seattle/Tacoma Intl
Wed 11/11
12:40 pm-5:35 pm
Nonstop11h 55m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Wed 8/5
11:30 am-1:29 am
1 stop29h 59m
Seattle/Tacoma Intl
Thu 8/20
12:15 pm-4:20 am
2 stops24h 05m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Tue 11/3
4:10 pm-9:00 am
Nonstop9h 50m
Seattle/Tacoma Intl
Wed 11/11
5:40 pm-5:40 pm
1 stop31h 00m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Tue 10/27
6:45 pm-12:51 pm
Nonstop10h 06m
Seattle/Tacoma Intl
Tue 11/3
5:40 pm-5:40 pm
1 stop31h 00m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
Thu 8/20
4:10 pm-6:00 am
1 stop29h 50m
Seattle/Tacoma Intl
Tue 8/25
9:40 pm-5:20 pm
1 stop27h 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 Accuracy2 stars | Trust Score*3 stars |
Currently, August is the cheapest month in which you can book a flight from Seoul to Seattle (average of $143). Flying from Seoul to Seattle in October is currently the most expensive (average of $1,042). 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 Thursday (9 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 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.
About 0% of weekly flights between Seoul and Seattle have experienced delays in the past year, with the average delay time being 0 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Sunday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
To ensure you get the cheapest price possible for a flight from Seoul to Seattle, you should look to book at least 9 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.
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$866 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$468 | Average$746 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$472 | Average$518 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$476 | Average$663 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$484 | Average$728 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$614 | FlexibilityNo cancel fee | On-time76% |