Seoul - Gimpo International (GMP)Jeju (CJU)
- non-stop flights:
- 108–144 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $59number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
20–33 20–35 20–28 20–34 20–27 20–33 20–32 
23–27 24–27 22–26 24–27 22–25 24 25–27 
21–26 18–22 22–26 21–25 22–26 19–22 25–26 
15–22 14–20 15–22 14–20 15–22 14–20 18–22 
13–14 15–16 13–14 15–16 13–14 15–16 14 
7 8–9 8 7–8 7–8 8 7 
5–8 4–7 5–8 5–8 5–8 5–8 5–8 
4 4 4 4 4 4 4 
1–2 1–2 1–2 1–2 1–2 1–2 2 Seoul Incheon (ICN)Jeju (CJU)
- non-stop flights:
- 2–38 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $410number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
1–18 1–25 1–24 1–19 2–17 1–20 2–7 
1–10 1–13 4–9 1–8 1–7 1–4 2–6 
1 0 1 1 0 0 0 Seoul (SEL)Jeju (CJU)
- non-stop flights:
- 109–169 per day
- flight duration:
- at least
direct flight availability- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
airlinesfrom $59number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
20–45 20–52 20–51 20–46 20–44 20–47 20–37 
25–33 25–37 25–31 25–32 25–29 24–28 25–31 
21–26 18–22 22–26 21–25 22–26 19–22 25–26 
15–22 14–20 15–22 14–20 15–22 14–20 18–22 
13–14 15–16 13–14 15–16 13–14 15–16 14 
7–8 8–9 8–9 7–9 7–8 8 7 
5–8 4–7 5–8 5–8 5–8 5–8 5–8 
4 4 4 4 4 4 4 
1–2 1–2 1–2 1–2 1–2 1–2 2