AirHint found the following cheapest return flights from Seoul (ICN) to Vientiane (VTE) in September 2026 (see full year).
Return flights
| 17 Sep - 22 Sep | Singapore Airlines | ||
| 18 Sep - 25 Sep | Singapore Airlines | ||
| 24 Sep - 27 Sep | Singapore Airlines | ||
| 18 Sep - 27 Sep | Scoot |
Also check the deals for one-way flights from Seoul to Vientiane in September.
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