Departure-day prices · September 2026 Gunsan → Jeju
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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Return-day prices · September 2026 Jeju → Gunsan
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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Best time to visit Jeju — climate Jan: ~8°C daytime, 14 rainy days
8°
Jan Feb: ~7°C daytime, 15 rainy days
7°
Feb Mar: ~13°C daytime, 12 rainy days
13°
Mar Apr: ~16°C daytime, 8 rainy days
16°
Apr May: ~19°C daytime, 10 rainy days
19°
May Jun: ~23°C daytime, 13 rainy days
23°
Jun Jul: ~29°C daytime, 14 rainy days
29°
Jul Aug: ~29°C daytime, 14 rainy days
29°
Aug Sep: ~28°C daytime, 17 rainy days
28°
Sep Oct: ~23°C daytime, 17 rainy days
23°
Oct Nov: ~16°C daytime, 10 rainy days
16°
Nov Dec: ~13°C daytime, 10 rainy days
13°
Dec Best value: Sep — fares from €35 and ~28°C daytime.
Flights from Gunsan to Jeju start around €35 (direct flights available). Range seen recently: €35–47, based on 3 fares found by travellers.
Fly (from €35)
1h 00m duration
€35–47 recent fares
Book
Cheapest cached fares Gunsan → Jeju; direct flights available (e.g. LJ). · Based on 3 fares found by travellers in the last 48h
Cheapest round trips to Jeju Fares found by travellers in the last 48 hours — refreshed daily.
Sep 19 – Sep 20
Jin Air · Direct · 1h 00m
€96
Book
Sep 22 – Sep 26
Jin Air · Direct · 1h 00m
€110
Book
Oct 2 – Oct 3
Jin Air · Direct · 1h 00m
€119
Book
Oct 3 – Oct 4
Jin Air · Direct · 1h 00m
€121
Book
Oct 4 – Oct 4
Jin Air · Direct · 1h 00m
€157
Book
Weather in Jeju
Thu
🌦️
25°
21°
💧100%
Fri
🌦️
24°
22°
💧100%
Sat
🌦️
25°
23°
💧84%
Sun
🌤️
24°
22°
💧31%
Mon
☁️
24°
21°
💧4%
Tue
🌤️
25°
22°
💧4%
Wed
☁️
24°
22°
💧8%
In Sep, Jeju typically sees ~28°C daytime highs and 17 rainy days.
Where to stay in Jeju 3★+ hotels from €35/night (29 hotels sampled, ~3 weeks out).
Pearl Hotel Jeju
hotel · Jeju
from €35/night ★ 3
Harbor Hotel
hotel · Jeju
from €42/night ★ 3
Hamdeok Beach Stay Jeju
hotel · Jeju
from €49/night ★ 4
Good to know Time difference Same time zone
Time in the air 1h 00m
Things to do in Jeju Top-rated tours and tickets from €45 — book ahead for the popular ones.
Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.
About Jeju
Jeju Island (제주도,濟州島 and formerly romanized as Cheju) is an island off the southern coast of South Korea in the Korea Strait. Korea's largest island and a popular vacation spot and honeymoon destination for Koreans and Chinese, it is crowded with tourists all-year round. The main town and capital is Jeju City.
Read the full Jeju guide
Guide content from Wikivoyage contributors (CC BY-SA).
Popular from Gunsan Cheapest destinations travellers searched recently — refreshed daily.
Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo ; exchange rates: ECB reference. Data updated 2026-09-17. Some links earn Stayonomy a commission at no cost to you.