January is by far the best month, wherein you can get cheapest flights for Cheju to Seoul. Meanwhile, October is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
January- During this month the footfall is less so, the flight is gradually inexpensive.
January - is the cheapest month to book round trip flights.
Cheapest Fare- Currently, this is the fare price based on the current demand.
Disclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

FUK
10:00
Fukuoka Fukuoka Airport
Tue , 18 Nov 2025

ICN
11:30
Seoul Incheon International Airport
Tue, 18 Nov 2025

DAD
00:40
Danang Da Nang International Airport
Thu , 20 Nov 2025

ICN
07:15
Seoul Incheon International Airport
Thu, 20 Nov 2025

FUK
17:00
Fukuoka Fukuoka Airport
Mon , 03 Nov 2025

ICN
18:35
Seoul Incheon International Airport
Mon, 03 Nov 2025

FUK
10:00
Fukuoka Fukuoka Airport
Tue , 25 Nov 2025

NRT
19:00
Tokyo Narita International Airport
Tue, 25 Nov 2025

GUM
02:00
Agana Antonio B Won Pat International Airport
Tue , 18 Nov 2025

ICN
05:50
Seoul Incheon International Airport
Tue, 18 Nov 2025

GUM
17:30
Agana Antonio B Won Pat International Airport
Tue , 18 Nov 2025

ICN
21:00
Seoul Incheon International Airport
Tue, 18 Nov 2025

FUK
17:00
Fukuoka Fukuoka Airport
Fri , 31 Oct 2025

KIX
09:05
Osaka Kansai International Airport
Sat, 01 Nov 2025