May is by far the best month, wherein you can get cheapest flights for Cheju to Seoul. Meanwhile, June 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.
May- During this month the footfall is less so, the flight is gradually inexpensive.
May - 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.

Seoul
11:15
Gimpo International Airport [GMP]
Tue , 05 May 2026

Taipei
12:55
Taipei Songshan Airport [TSA]
Tue, 05 May 2026

Seoul
09:15
Incheon International Airport [ICN]
Wed , 06 May 2026

Osaka
11:10
Kansai International Airport [KIX]
Wed, 06 May 2026

Taipei
14:00
Taipei Songshan Airport [TSA]
Tue , 05 May 2026

Seoul
17:25
Gimpo International Airport [GMP]
Tue, 05 May 2026

Tokyo
18:30
Narita International Airport [NRT]
Wed , 06 May 2026

Sapporo
11:50
New Chitose Airport [CTS]
Thu, 07 May 2026

Seoul
09:15
Incheon International Airport [ICN]
Tue , 05 May 2026

Busan
18:00
Gimhae International Airport [PUS]
Tue, 05 May 2026

Sapporo
17:40
New Chitose Airport [CTS]
Tue , 05 May 2026

Okinawa
11:00
Naha Airport [OKA]
Wed, 06 May 2026

Tokyo
17:30
Narita International Airport [NRT]
Tue , 05 May 2026

Fukuoka
10:15
Fukuoka Airport [FUK]
Wed, 06 May 2026

Fukuoka
20:40
Fukuoka Airport [FUK]
Tue , 05 May 2026

Tokyo
09:50
Narita International Airport [NRT]
Wed, 06 May 2026

Sapporo
17:40
New Chitose Airport [CTS]
Tue , 05 May 2026

Osaka
08:30
Kansai International Airport [KIX]
Wed, 06 May 2026

Tokyo
11:30
Narita International Airport [NRT]
Tue , 05 May 2026

Fukuoka
19:40
Fukuoka Airport [FUK]
Tue, 05 May 2026