Cheapest return flights from Seoul to Vientiane in September from $258

Best time to book flights for Seoul (ICN) to Vientiane (VTE) flights at AirHint

AirHint found the following cheapest return flights from Seoul (ICN) to Vientiane (VTE) in September 2025 (see full year).

Return flights

22 Sep - 25 Sep Vietnam Airlines
06 Sep - 10 Sep Vietnam Airlines
19 Sep - 28 Sep Vietnam Airlines
20 Sep - 28 Sep Vietnam Airlines
07 Sep - 11 Sep Vietnam Airlines
08 Sep - 12 Sep Vietnam Airlines
08 Sep - 11 Sep Vietnam Airlines
18 Sep - 22 Sep Vietnam Airlines
22 Sep - 26 Sep Vietnam Airlines
08 Sep - 13 Sep Vietnam Airlines
29 Sep - 14 Oct Vietnam Airlines
29 Sep - 13 Oct Vietnam Airlines
03 Sep - 01 Oct Vietnam Airlines
27 Sep - 01 Oct Vietnam Airlines
30 Sep - 14 Oct Vietnam Airlines
30 Sep - 13 Oct Vietnam Airlines
22 Sep - 02 Oct Jeju Air direct
27 Sep - 01 Oct Jeju Air direct
24 Sep - 04 Oct AirAsia X
26 Sep - 04 Oct Vietnam Airlines

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

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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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