Cheap Flights from St Louis to Vientiane
No deal from St Louis to Vientiane has cleared our price bar yet. What we have seen on the route is below.
Across 4 months of observations from St Louis to Vientiane, the lowest round-trip fare we recorded was $3051, in October. The typical fare was $6487. October was the cheapest month we saw and September the dearest.
The most recent price we saw on this route was $3426 on EVA Air, THAI, United, and Vietnam Airlines, seen Oct 27. It is an unverified observation and may have changed.
See every deal <a href="/from/st-louis">from St Louis</a>, <a href="/to/vientiane">to Vientiane</a>, or the return direction <a href="/from/vientiane/to/st-louis">Vientiane to St Louis</a>.
Latest price we saw: St Louis to Vientiane
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| St Louis (STL) to Vientiane (VTE) | $3426 | 20.3¢ | Oct 29 – Nov 4 | EVA Air, THAI, United, and Vietnam Airlines | Oct 27 | Check price |
Price history: St Louis to Vientiane
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $3051 | $4233 | 16 |
| Sep 2026 | $7433 | $8932 | 16 |
| Aug 2026 | $5223 | $7736 | 13 |
| Jul 2026 | $5048 | $5048 | 1 |
Frequently asked questions
How many flight deals from St Louis to Vientiane are on Sparkflights right now?
There are 0 verified deals from St Louis to Vientiane on the board right now. The list refreshes hourly.
What is the lowest price ever seen from St Louis to Vientiane?
The lowest fare we've recorded from St Louis to Vientiane is $3051, based on 46 price observations over 4 months.
How much does a flight from St Louis to Vientiane cost?
The typical round-trip fare we observed from St Louis to Vientiane is $6487, against a recorded low of $3051. These are observations, not quotes.
When is the cheapest month to fly St Louis to Vientiane?
October was the cheapest month we observed from St Louis to Vientiane and September the dearest, over 4 months of data.
What is the current price from St Louis to Vientiane?
The most recent fare our sweep saw from St Louis to Vientiane is $3426, on Oct 27. It is an unverified observation rather than a verified deal, so check it before booking.