AirHint found the following cheapest return flights from Seoul (ICN) to Prague (PRG) in May 2026 (see full year).

Return flights

21 May - 26 May	Lufthansa
20 May - 28 May	Lufthansa
21 May - 28 May	Lufthansa
13 May - 17 May	Lufthansa
21 May - 31 May	Lufthansa
21 May - 02 Jun	Lufthansa
26 May - 04 Jun	Lufthansa
20 May - 27 May	Lufthansa
20 May - 03 Jun	Lufthansa
21 May - 03 Jun	Lufthansa
14 May - 19 May	LOT
19 May - 26 May	Lufthansa
13 May - 20 May	Lufthansa
11 May - 31 May	LOT
25 May - 03 Jun	LOT
27 May - 03 Jun	LOT
21 May - 01 Jun	Lufthansa
12 May - 17 Jun	Lufthansa
26 May - 07 Jun	Lufthansa
28 May - 12 Jun	Scandinavian Airlines

Also check the deals for one-way flights from Seoul to Prague in May.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Seoul to Prague in May from 521€

Return flights