Korean Air offers lie-flat seats in business class with a 75” pitch and 21” width.
Economy passengers enjoy a 33”-34” seat pitch, more spacious than many competitors.
Round-trip from | $814 (Air Canada) |
---|---|
One-way from | $352 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,247 |
Good round-trip deal | $724 or less |
Good one-way deal | $378 or less |
Fly from
Fly to
Route
Depart
Return
Price
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Sat 9/6
7:15 pm-4:05 pm
1 stop28h 50m
Incheon Intl
Thu 10/23
10:35 am-2:16 pm
2 stops19h 41m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Sat 9/13
1:50 pm-6:45 pm
1 stop36h 55m
Incheon Intl
Mon 11/3
6:55 pm-6:59 pm
1 stop17h 04m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Mon 9/8
10:00 am-9:40 pm
2 stops19h 40m
Incheon Intl
Mon 9/22
10:40 am-2:16 pm
2 stops19h 36m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Wed 10/1
7:59 pm-9:10 pm
2 stops33h 11m
Incheon Intl
Wed 11/19
10:05 am-10:24 pm
2 stops29h 19m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Mon 8/18
10:00 am-8:00 pm
2 stops18h 00m
Incheon Intl
Mon 9/15
5:45 pm-2:16 pm
1 stop12h 31m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Mon 9/1
10:00 am-9:10 pm
2 stops19h 10m
Incheon Intl
Thu 10/23
10:40 am-2:16 pm
2 stops19h 36m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Sun 9/7
2:15 pm-5:55 pm
Nonstop11h 40m
Incheon Intl
Sun 9/14
6:20 pm-12:30 pm
Nonstop10h 10m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Sun 9/14
8:40 am-6:45 pm
1 stop18h 05m
Incheon Intl
Wed 10/15
6:20 pm-7:31 pm
1 stop17h 11m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Sat 9/20
2:15 pm-5:55 pm
Nonstop11h 40m
Incheon Intl
Sat 10/11
6:20 pm-12:30 pm
Nonstop10h 10m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Mon 10/27
10:05 am-9:05 pm
2 stops19h 00m
Incheon Intl
Mon 11/17
6:55 pm-2:26 pm
1 stop12h 31m
Booking 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, February is the cheapest month in which you can book a flight from Seattle to Seoul (average of $995). Flying from Seattle to Seoul in December is currently the most expensive (average of $1,635). 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.
It’s optimal to fly from Seattle to Seoul in the evening. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the afternoon.
Travelers seeking maximum savings on their Seattle to Seoul flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from SEA to SEL are scheduled on a Monday (8 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (7 on average).
Vancouver (YVR) – chosen by Cheapflights users on 65% of 1-stop itineraries from Seattle to Seoul on Cheapflights.
Vancouver (YVR) is the most affordable 1-stop option, with an average round-trip price of $871.
Flights via Honolulu (HNL) have the shortest average one-way travel time for 1-stop routes: 19h 25m.
Flights via Honolulu (HNL) offer the fastest connection on this route, with an average layover time of 2h 33m.
Comfort
Overall
Crew
Entertainment
Boarding
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Overall
Crew
Entertainment
Boarding
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Overall
Crew
Entertainment
Boarding
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Overall
Crew
Entertainment
Boarding
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Overall
Crew
Entertainment
Boarding
Food
Reviews
Anonymous,May 2025
TPE - SEA
Comfort
Overall
Crew
Entertainment
Boarding
Food
Reviews
Anonymous,May 2025
TPE - SEA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$167 | Average$1,281 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$182 | Average$998 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$282 | Average$865 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$763 | Average$1,550 | FlexibilityNo cancel fee | On-time85% | |
Cheapest$798 | Average$904 | FlexibilityNo cancel fee | On-time67% | |
Cheapest$886 | Average$1,070 | FlexibilityNo cancel fee | On-time70% | |
Cheapest$899 | Average$1,147 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$908 | Average$1,196 | FlexibilityNo cancel fee | On-time81% | |
Cheapest$978 | Average$1,090 | FlexibilityNo cancel fee | On-time74% | |
Cheapest$1,007 | Average$1,217 | FlexibilityNo cancel fee | On-time77% |