Security at GMP can be busy, especially during rush hours. Check the live boarding time info on the airport homepage before heading out.

| Most accurate provider | Mytrip 3 stars | 
|---|---|
| Most trusted provider | Mytrip 3 stars | 
| Round-trip from | $40 (Jin Air) | 
| One-way from | $18 (Jetabroad) | 
| Popular in | October | 
| Cheapest in | March | 
| Average price | $115 | 
| Good round-trip deal | $65 or less | 
| Good one-way deal | $23 or less | 
Fly from
Fly to
Route
Depart
Return
Price
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Thu 11/13
6:35 pm-7:50 pm
Nonstop1h 15m
Jeju City
Mon 11/17
8:15 am-9:30 am
Nonstop1h 15m
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Thu 12/11
8:00 pm-9:15 pm
Nonstop1h 15m
Jeju City
Sat 12/13
7:00 am-8:15 am
Nonstop1h 15m
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Thu 11/27
7:30 pm-8:45 pm
Nonstop1h 15m
Jeju City
Sun 11/30
7:10 am-8:25 am
Nonstop1h 15m
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Sun 1/18
7:50 pm-9:05 pm
Nonstop1h 15m
Jeju City
Wed 1/21
7:15 am-8:30 am
Nonstop1h 15m
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Wed 1/21
6:35 am-7:50 am
Nonstop1h 15m
Jeju City
Wed 1/21
11:55 am-1:10 pm
Nonstop1h 15m
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Thu 12/11
6:40 pm-7:55 pm
Nonstop1h 15m
Jeju City
Fri 12/12
6:05 am-7:20 am
Nonstop1h 15m
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Thu 11/13
6:30 pm-7:45 pm
Nonstop1h 15m
Jeju City
Sat 11/15
6:05 am-7:20 am
Nonstop1h 15m
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Mon 12/22
8:00 pm-9:15 pm
Nonstop1h 15m
Jeju City
Thu 12/25
7:00 am-8:15 am
Nonstop1h 15m
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Fri 11/21
8:00 pm-9:15 pm
Nonstop1h 15m
Jeju City
Mon 11/24
7:00 am-8:15 am
Nonstop1h 15m
SeoulJeju City
GMP - CJU
GMPCJU
Seoul Gimpo Intl
Tue 11/18
8:00 pm-9:15 pm
Nonstop1h 15m
Jeju City
Sun 11/23
7:00 am-8:15 am
Nonstop1h 15m
| Provider | Price Accuracy | Trust Score* | 
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | 
Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul Gimpo Intl Airport to Jeju City. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, March is the cheapest month in which you can book a flight from Seoul Gimpo Intl Airport to Jeju City (average of $23). Flying from Seoul Gimpo Intl Airport to Jeju City in October is currently the most expensive (average of $43). 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.
A simple way to save on the total cost of your ticket is to fly from Seoul Gimpo Intl Airport to Jeju City in the evening. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight in the morning.
Travelers seeking maximum savings on their Seoul Gimpo Intl Airport to Jeju City flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
About 19% of weekly flights between Seoul and Jeju City have experienced delays in the past year, with the average delay time being 82 minutes.
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening 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 11% of flights being delayed.
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$27 | Average$70 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$27 | Average$64 | FlexibilityNo cancel fee | On-time94% | |
| Cheapest$28 | Average$73 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$29 | Average$70 | FlexibilityNo cancel fee | On-time86% | |
| Cheapest$31 | Average$65 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$34 | Average$71 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$46 | Average$91 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$52 | Average$102 | FlexibilityNo cancel fee | On-time81% |