Premium Economy offers 42-43 inches of legroom, wider seats, and priority boarding.
Economy class provides 35 inches of legroom, ensuring comfort on long flights.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $567 (Mytrip) |
One-way from | $344 (SmartFares) |
Popular in | December |
Cheapest in | October |
Average price | $1,064 |
Good round-trip deal | $661 or less |
Good one-way deal | $358 or less |
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoIncheon
SFO - ICN
SFOICN
San Francisco
Sat 12/6
11:45 pm-5:40 am
Nonstop12h 55m
Incheon Intl
Sun 12/14
6:00 pm-11:35 am
Nonstop10h 35m
San FranciscoIncheon
SFO - ICN
SFOICN
San Francisco
Fri 12/26
11:45 pm-5:40 am
Nonstop12h 55m
Incheon Intl
Sun 1/11
6:00 pm-11:35 am
Nonstop10h 35m
San FranciscoIncheon
SFO - ICN
SFOICN
San Francisco
Wed 12/3
11:45 pm-5:40 am
Nonstop12h 55m
Incheon Intl
Sat 12/20
6:00 pm-11:35 am
Nonstop10h 35m
San FranciscoIncheon
SFO - ICN
SFOICN
San Francisco
Sat 1/10
7:00 am-6:35 pm
1 stop18h 35m
Incheon Intl
Sun 1/18
8:35 pm-8:12 pm
1 stop16h 37m
San FranciscoIncheon
SFO - ICN
SFOICN
San Francisco
Sun 11/2
8:00 am-6:35 pm
1 stop17h 35m
Incheon Intl
Sun 11/9
8:35 pm-11:50 pm
1 stop20h 15m
Los AngelesSeoul
LAX - GMP
LAXGMP
Los Angeles
Mon 11/17
11:30 am-7:50 pm
1 stop39h 20m
Seoul Gimpo Intl
Sun 11/23
8:50 pm-9:05 am
1 stop29h 15m
San FranciscoIncheon
SFO - ICN
SFOICN
San Francisco
Sat 11/1
11:45 pm-4:40 am
Nonstop12h 55m
Incheon Intl
Sat 11/8
12:45 pm-6:30 am
Nonstop10h 45m
Los AngelesIncheon
LAX - ICN
LAXICN
Los Angeles
Thu 3/12
12:30 pm-3:20 pm
1 stop34h 50m
Incheon Intl
Mon 3/16
12:55 pm-10:05 am
1 stop37h 10m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Wed 11/12
11:15 am-4:30 pm
Nonstop12h 15m
Incheon Intl
Sun 11/16
8:05 pm-1:20 pm
Nonstop10h 15m
SeattleIncheon
SEA - ICN
SEAICN
Seattle/Tacoma Intl
Wed 11/12
1:45 pm-6:35 pm
Nonstop11h 50m
Incheon Intl
Sat 11/15
8:35 pm-1:55 pm
Nonstop10h 20m
Currently, February is the cheapest month in which you can book a flight from USA to Seoul (average of $103). Flying from USA to Seoul in June is currently the most expensive (average of $534). 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 USA to Seoul in the afternoon. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight at noon.
Travelers seeking maximum savings on their USA to Seoul flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Boarding
Food
Crew
Entertainment
Overall
Comfort
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Food
Crew
Entertainment
Overall
Comfort
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Food
Crew
Entertainment
Overall
Comfort
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Food
Crew
Entertainment
Overall
Comfort
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Food
Crew
Entertainment
Overall
Comfort
Reviews
Chris,Mar 2025
SEA - ICN
Boarding
Food
Crew
Entertainment
Overall
Comfort
Reviews
Chris,Mar 2025
SEA - ICN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$129 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$353 | Average$635 | FlexibilityNo cancel fee | On-time49% | |
| Cheapest$422 | Average$779 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$528 | Average$1,100 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$549 | Average$1,208 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$592 | Average$684 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$622 | Average$712 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$651 | Average$848 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$672 | Average$1,075 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$677 | Average$923 | FlexibilityNo cancel fee | On-time72% |