Seoul Incheon (ICN)Tokyo Narita (NRT)
- non-stop flights:
- 30–46 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $169number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
6–8 5–7 5–7 4–6 4–6 5–7 5–7 
4–6 4–6 4–6 4–6 4–6 4–6 4 
4–6 2–6 2–6 2–6 4–7 4–7 4–7 
3–4 3 3–4 3 3–4 3 3 
3 3 3 3 3 3–4 3 
3 3 3 3 3 3 3 
2–4 2–4 2–4 2–4 2–4 2–4 2–4 
2 2 2 2 2 2 2 
1–2 1–2 1–2 1–2 1–2 1–2 1–2 
1–2 1–2 1 1–2 1–2 1–2 1–2 
1–2 1–2 1–2 1–2 1 1–2 1–2 
1 0 1 1 1 1 1 
0 1 1 1 1 1 1 
1 1 1 1 1 1 0 
0 1 1 1 1 1 0 Seoul Incheon (ICN)Fukuoka (FUK)
- non-stop flights:
- 24–29 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $129number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
4–5 4–5 4–5 4–5 4 4–5 4 
4–5 4–5 4 4 4–5 4 4 
3–5 3–5 3–5 3–5 3–5 3–5 3–4 
3–4 3–4 3–4 3–4 3–4 3–4 3 
3 3 3 3 3 3 3 
3 3 3 3 3 3 3 
2 2 2 2 2 2 2 
2 2 2 2 2 2 2 Seoul - Gimpo International (GMP)Tokyo Haneda (HND)
- non-stop flights:
- 12 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $208number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
3 3 3 3 3 3 3 
3 3 3 3 3 3 3 
3 3 3 3 3 3 3 
3 3 3 3 3 3 3 Seoul (SEL)Tokyo (TYO)
- non-stop flights:
- 44–62 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $169number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
8–11 8–11 8–11 8–11 8–11 8–11 8–9 
7 7 7 7 7–8 7–8 7 
6–8 5–7 5–7 4–6 4–6 5–7 5–7 
4–6 2–6 2–6 2–6 4–7 4–7 4–7 
3 4 4 4 4 4 4 
3 3–4 3–4 3–4 3–4 3–4 3 
3–4 3 3–4 3 3–4 3 3 
3 3 3 3 3 3 3 
2–4 2–4 2–4 2–4 2–4 2–4 2–4 
2 2 2 2 2 2 2 
1–2 1–2 1–2 1–2 1–2 1–2 1–2 
1–2 1–2 1 1–2 1–2 1–2 1–2 
1–2 1–2 1–2 1–2 1 1–2 1–2 
1 1 1 1 1 1 1 
1 0 1 1 1 1 1 
1 1 1 1 1 1 0
Stops
- Direct flight
Departure airport
Destination airport
Airline
- Asiana Airlines
- Korean Air
- Japan Airlines
- Tway Air
- ANA All Nippon Airways
Outbound weekday
- Monday
- Tuesday
- Wednesday
- Thursday
- Friday
- Saturday
- Sunday