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Seoul to Jeju flights in May 2027 from $90 GMP, ICN → CJU

Gimpo International Airport (GMP), Incheon International Airport (ICN) → Jeju International Airport (CJU)

For departures in May 2027, the cheapest return found recently is $181 with Korean Air, 20 May 2027 – 27 May 2027, found today. The cheapest one-way found recently is $90 with Korean Air, 27 May 2027, found today.

Return

In May 2027, the cheapest return fare on each of 8 departure dates is usually $186 to $210. Across all 111 departure dates we hold on this route, it is usually $63 to $181. Of the 11 months with enough return fares to compare, 7 are usually cheaper than May 2027.

Cheapest return found recently

$181

20 May 2027 – 27 May 2027 · Korean Air

Gimpo International Airport (GMP) → Jeju International Airport (CJU)

out nonstop, back nonstop

found today

See prices for these datesCheck today's price

Cheapest we hold, of any age

$179

24 May 2027 – 24 May 2027 · Korean Air

Gimpo International Airport (GMP) → Jeju International Airport (CJU)

out nonstop, back nonstop

found 5 days ago

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The cheapest dates in May 2027

DatesFromAirlineStopsFound
24 May 2027 – 24 May 2027$179Korean Airout nonstop, back nonstopfound 5 days agoSee prices for these dates
20 May 2027 – 27 May 2027$181Korean Airout nonstop, back nonstopfound todaySee prices for these dates
22 May 2027 – 25 May 2027$187Korean Airout nonstop, back nonstopfound 5 days agoSee prices for these dates
3 May 2027 – 7 May 2027$190Korean Airout nonstop, back nonstopfound 3 days agoSee prices for these dates
31 May 2027 – 5 Jun 2027$190Korean Airout nonstop, back nonstopfound 3 days agoSee prices for these dates

Every date we hold

8 departure dates

3 May 2027 – 7 May 2027: $190, found 3 days ago13 May 2027 – 16 May 2027: $223, found 3 days ago16 May 2027 – 30 May 2027: $215, found 2 days ago20 May 2027 – 27 May 2027: $181, found today21 May 2027 – 27 May 2027: $208, found today22 May 2027 – 25 May 2027: $187, found 5 days ago24 May 2027 – 24 May 2027: $179, found 5 days ago31 May 2027 – 5 Jun 2027: $190, found 3 days agoMay
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 May 2027 – 7 May 2027$190Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)out nonstop, back nonstopfound 3 days agoSee prices for these dates
13 May 2027 – 16 May 2027$223Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)out nonstop, back nonstopfound 3 days agoSee prices for these dates
16 May 2027 – 30 May 2027$215Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)out nonstop, back nonstopfound 2 days agoSee prices for these dates
20 May 2027 – 27 May 2027$181Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)out nonstop, back nonstopfound todaySee prices for these dates
21 May 2027 – 27 May 2027$208Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)out nonstop, back nonstopfound todaySee prices for these dates
22 May 2027 – 25 May 2027$187Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)out nonstop, back nonstopfound 5 days agoSee prices for these dates
24 May 2027 – 24 May 2027$179Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)out nonstop, back nonstopfound 5 days agoSee prices for these dates
31 May 2027 – 5 Jun 2027$190Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)out nonstop, back nonstopfound 3 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $34.

November 2026From $34Cheapest seen15 departure dates24 Nov – 26 Nov · found 13 hours agoSee prices for these datesEvery date in November 2026
December 2026From $4721 departure dates1 Dec – 1 Dec · found 2 days agoSee prices for these datesEvery date in December 2026
January 2027From $439 departure dates25 Jan 2027 – 2 Feb 2027 · found 2 days agoSee prices for these datesEvery date in January 2027
February 2027From $579 departure dates15 Feb 2027 – 18 Feb 2027 · found 6 days agoSee prices for these datesEvery date in February 2027
March 2027From $5716 departure dates1 Mar 2027 – 10 Mar 2027 · found 2 days agoSee prices for these datesEvery date in March 2027
April 2027From $17412 departure dates5 Apr 2027 – 6 Apr 2027 · found todaySee prices for these datesEvery date in April 2027
May 2027From $1798 departure dates24 May 2027 – 24 May 2027 · found 5 days agoSee prices for these dates
June 2027From $1636 departure dates8 Jun 2027 – 22 Jun 2027 · found 4 days agoSee prices for these datesEvery date in June 2027
July 2027From $1865 departure dates20 Jul 2027 – 24 Jul 2027 · found 5 days agoSee prices for these dates
August 2027From $1874 departure dates30 Aug 2027 – 10 Sept 2027 · found 5 days agoSee prices for these dates
September 2027From $1795 departure dates2 Sept 2027 – 3 Sept 2027 · found 6 days agoSee prices for these dates
October 2027From $2071 departure date5 Oct 2027 – 7 Oct 2027 · found 3 days agoSee prices for these dates

One-way

In May 2027, the cheapest one-way fare on each of 10 departure dates is usually $89 to $118. Across all 135 departure dates we hold on this route, it is usually $26 to $89. Of the 9 months with enough one-way fares to compare, May 2027 is usually the most expensive.

Cheapest one-way found recently

$90

27 May 2027 · Korean Air

Gimpo International Airport (GMP) → Jeju International Airport (CJU)

nonstop

found today

Open this tripCheck today's price

Cheapest we hold, of any age

$88

6 May 2027 · Korean Air

Gimpo International Airport (GMP) → Jeju International Airport (CJU)

nonstop

found 5 days ago

Open this tripCheck today's price

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The cheapest dates in May 2027

DatesFromAirlineStopsFound
6 May 2027$88Korean Airnonstopfound 5 days agoOpen this trip
20 May 2027$88Korean Airnonstopfound 4 days agoOpen this trip
24 May 2027$88Korean Airnonstopfound 5 days agoOpen this trip
27 May 2027$90Korean Airnonstopfound todayOpen this trip
2 May 2027$100Korean Airnonstopfound yesterdayOpen this trip

Every date we hold

10 departure dates

2 May 2027: $100, found yesterday5 May 2027: $118, found today6 May 2027: $88, found 5 days ago13 May 2027: $116, found 4 days ago14 May 2027: $117, found 3 days ago16 May 2027: $118, found today17 May 2027: $118, found 2 days ago20 May 2027: $88, found 4 days ago24 May 2027: $88, found 5 days ago27 May 2027: $90, found todayMay
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
2 May 2027$100Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound yesterdayOpen this trip
5 May 2027$118Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound todayOpen this trip
6 May 2027$88Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound 5 days agoOpen this trip
13 May 2027$116Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound 4 days agoOpen this trip
14 May 2027$117Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound 3 days agoOpen this trip
16 May 2027$118Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound todayOpen this trip
17 May 2027$118Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound 2 days agoOpen this trip
20 May 2027$88Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound 4 days agoOpen this trip
24 May 2027$88Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound 5 days agoOpen this trip
27 May 2027$90Korean AirGimpo International Airport (GMP) → Jeju International Airport (CJU)nonstopfound todayOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $15.

November 2026From $15Cheapest seen15 departure dates24 Nov · found yesterdayOpen this tripEvery date in November 2026
December 2026From $1828 departure dates2 Dec · found yesterdayOpen this tripEvery date in December 2026
January 2027From $2420 departure dates5 Jan 2027 · found todayOpen this tripEvery date in January 2027
February 2027From $2412 departure dates15 Feb 2027 · found 2 days agoOpen this tripEvery date in February 2027
March 2027From $2321 departure dates9 Mar 2027 · found yesterdayOpen this tripEvery date in March 2027
April 2027From $8812 departure dates7 Apr 2027 · found 6 days agoOpen this tripEvery date in April 2027
May 2027From $8810 departure dates6 May 2027 · found 5 days agoOpen this trip
June 2027From $908 departure dates9 Jun 2027 · found 2 days agoOpen this tripEvery date in June 2027
July 2027From $883 departure dates13 Jul 2027 · found 5 days agoOpen this trip
August 2027From $892 departure dates30 Aug 2027 · found 3 days agoOpen this trip
September 2027From $882 departure dates6 Sept 2027 · found 5 days agoOpen this trip
October 2027From $882 departure dates6 Oct 2027 · found 5 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work