is by far the best month, wherein you can get cheapest flights for Cheju to Seoul. Meanwhile, 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.
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
15:55
Incheon International Airport [ICN]
Sat , 20 Jun 2026

Osaka
18:05
Kansai International Airport [KIX]
Sat, 20 Jun 2026

Seoul
08:00
Incheon International Airport [ICN]
Sat , 20 Jun 2026

Osaka
10:05
Kansai International Airport [KIX]
Sat, 20 Jun 2026

Tokyo
18:55
Narita International Airport [NRT]
Sat , 20 Jun 2026

Seoul
21:45
Incheon International Airport [ICN]
Sat, 20 Jun 2026

Seoul
07:55
Incheon International Airport [ICN]
Sat , 20 Jun 2026

Danang
10:45
Da Nang International Airport [DAD]
Sat, 20 Jun 2026

Seoul
18:00
Incheon International Airport [ICN]
Sat , 20 Jun 2026

Bangkok
22:05
Suvarnabhumi Airport [BKK]
Sat, 20 Jun 2026

Seoul
15:50
Incheon International Airport [ICN]
Sat , 20 Jun 2026

Singapore
21:30
Singapore Changi Airport [SIN]
Sat, 20 Jun 2026

Fukuoka
12:30
Fukuoka Airport [FUK]
Sat , 20 Jun 2026

Singapore
21:30
Singapore Changi Airport [SIN]
Sat, 20 Jun 2026

Fukuoka
12:30
Fukuoka Airport [FUK]
Sat , 20 Jun 2026

Bangkok
22:05
Suvarnabhumi Airport [BKK]
Sat, 20 Jun 2026

Danang
01:25
Da Nang International Airport [DAD]
Sat , 20 Jun 2026

Paris
18:10
Charles de Gaulle International Airport [CDG]
Sat, 20 Jun 2026

Singapore
23:00
Singapore Changi Airport [SIN]
Sat , 20 Jun 2026

Vancouver
14:55
Vancouver International Airport [YVR]
Sun, 21 Jun 2026

Paris
20:30
Charles de Gaulle International Airport [CDG]
Sat , 20 Jun 2026

Danang
00:25
Da Nang International Airport [DAD]
Mon, 22 Jun 2026