AirHint found the following cheapest return flights from Seoul (ICN) to Vientiane (VTE) in April 2026 (see full year).

Return flights

16 Apr - 20 Apr	China Southern
03 Apr - 07 Apr	China Southern
03 Apr - 08 Apr	China Southern
10 Apr - 13 Apr	China Southern
12 Apr - 19 Apr	China Southern
22 Apr - 26 Apr	Scoot Tigerair
10 Apr - 26 Apr	AirAsia X
03 Apr - 20 Apr	AirAsia X
22 Apr - 05 May	AirAsia X
03 Apr - 19 Apr	AirAsia X
10 Apr - 20 Apr	AirAsia X

Also check the deals for one-way flights from Seoul to Vientiane in April.

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 Vientiane in April from 280€

Return flights