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

Return flights

16 Mar - 20 Mar	China Southern
17 Mar - 18 Mar	Thai AirAsia
10 Mar - 18 Mar	Thai AirAsia
15 Mar - 18 Mar	Thai AirAsia
29 Mar - 15 Apr	Thai AirAsia
26 Mar - 15 Apr	Thai AirAsia
16 Mar - 18 Mar	Thai AirAsia
18 Mar - 30 Mar	Thai AirAsia
22 Mar - 30 Mar	Thai AirAsia
20 Mar - 30 Mar	Thai AirAsia
17 Mar - 30 Mar	Thai AirAsia
10 Mar - 30 Mar	Thai AirAsia

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

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 Vientiane to Seoul in March from 345€

Return flights