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

Return flights

16 Apr - 23 Apr	China Southern
09 Apr - 13 Apr	China Southern
16 Apr - 19 Apr	China Southern
17 Apr - 19 Apr	China Southern
24 Apr - 25 Apr	VietJet Air
11 Apr - 18 Apr	VietJet Air
29 Apr - 05 May	Scoot Tigerair
17 Apr - 23 Apr	AirAsia X
17 Apr - 25 Apr	AirAsia X
20 Apr - 23 Apr	AirAsia X
20 Apr - 25 Apr	AirAsia X
29 Apr - 04 May	VietJet Air
30 Apr - 05 May	China Southern
30 Apr - 04 May	Singapore Airlines
24 Apr - 05 May	AirAsia X
24 Apr - 04 May	AirAsia X
17 Apr - 05 May	AirAsia X
17 Apr - 04 May	AirAsia X
20 Apr - 05 May	AirAsia X
20 Apr - 04 May	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