Check CJU’s real-time updates for baggage drop and security waits to ensure a smooth departure experience.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $28 (Kiwi.com) |
One-way from | $15 (Asiana Airlines) |
Popular in | October |
Cheapest in | March |
Average price | $51 |
Good round-trip deal | $26 or less |
Good one-way deal | $32 or less |
Fly from
Fly to
Route
Depart
Return
Price
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Tue 1/13
7:15 am-8:30 am
Nonstop1h 15m
Seoul Gimpo Intl
Wed 1/14
6:35 am-7:50 am
Nonstop1h 15m
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Fri 1/16
7:15 am-8:30 am
Nonstop1h 15m
Seoul Gimpo Intl
Tue 1/20
6:05 am-7:20 am
Nonstop1h 15m
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Mon 1/12
7:50 am-9:05 am
Nonstop1h 15m
Seoul Gimpo Intl
Mon 1/19
8:30 pm-9:45 pm
Nonstop1h 15m
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Mon 1/12
7:55 am-9:10 am
Nonstop1h 15m
Seoul Gimpo Intl
Wed 1/14
6:25 am-7:40 am
Nonstop1h 15m
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Sat 1/31
7:15 am-8:30 am
Nonstop1h 15m
Seoul Gimpo Intl
Sat 2/7
7:50 pm-9:05 pm
Nonstop1h 15m
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Tue 2/10
9:10 am-10:30 am
Nonstop1h 20m
Seoul Gimpo Intl
Sat 2/21
4:05 pm-5:20 pm
Nonstop1h 15m
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Fri 1/30
7:10 am-8:25 am
Nonstop1h 15m
Seoul Gimpo Intl
Fri 2/6
4:55 pm-6:10 pm
Nonstop1h 15m
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Sat 1/3
7:55 am-9:10 am
Nonstop1h 15m
Seoul Gimpo Intl
Sat 1/3
6:35 pm-7:50 pm
Nonstop1h 15m
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Sun 12/28
7:10 am-8:25 am
Nonstop1h 15m
Seoul Gimpo Intl
Tue 12/30
6:25 am-7:40 am
Nonstop1h 15m
Jeju CitySeoul
CJU - GMP
CJUGMP
Jeju City
Sun 2/1
7:15 am-8:30 am
Nonstop1h 15m
Seoul Gimpo Intl
Sun 2/1
7:50 pm-9:05 pm
Nonstop1h 15m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
Currently, August is the cheapest month in which you can book a flight from Jeju City to Seoul Gimpo Intl Airport (average of $16). Flying from Jeju City to Seoul Gimpo Intl Airport in June is currently the most expensive (average of $41). 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.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 53% on flights from Jeju City to Seoul Gimpo Intl Airport by exploring options for tickets in the evening.
About 16% of weekly flights between Jeju City and Seoul have experienced delays in the past year, with the average delay time being 87 minutes.
Historically, flights departing in the morning 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 Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Air Busan have had the lowest number of delays on this route, with just 10% of flights being delayed.
Crew
Boarding
Entertainment
Overall
Food
Comfort
Reviews
Anonymous,Dec 2025
BKK - ICN
Crew
Boarding
Entertainment
Overall
Food
Comfort
Reviews
Anonymous,Dec 2025
BKK - ICN
Crew
Boarding
Entertainment
Overall
Food
Comfort
Reviews
Anonymous,Dec 2025
BKK - ICN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$11 | Average$60 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$34 | Average$66 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$47 | Average$59 | FlexibilityNo cancel fee | On-time76% |