Cheap Flights from St Louis to Chiang Mai
No deal from St Louis to Chiang Mai has cleared our price bar yet. What we have seen on the route is below.
Across 4 months of observations from St Louis to Chiang Mai, the lowest round-trip fare we recorded was $1148, in September. The typical fare was $1181. September was the cheapest month we saw and July the dearest.
The most recent price we saw on this route was $1199 on Delta and Korean Air, seen Oct 16. It is an unverified observation and may have changed.
See every deal <a href="/from/st-louis">from St Louis</a>, <a href="/to/chiang-mai">to Chiang Mai</a>, or the return direction <a href="/from/chiang-mai/to/st-louis">Chiang Mai to St Louis</a>.
Latest price we saw: St Louis to Chiang Mai
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 Chiang Mai (CNX) | $1199 | 7.1¢ | Oct 26 – Nov 3 | Delta and Korean Air | Oct 16 | Check price |
Price history: St Louis to Chiang Mai
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $1149 | $1192 | 12 |
| Sep 2026 | $1148 | $1149 | 36 |
| Aug 2026 | $1149 | $1179 | 56 |
| Jul 2026 | $1206 | $1206 | 2 |
Frequently asked questions
How many flight deals from St Louis to Chiang Mai are on Sparkflights right now?
There are 0 verified deals from St Louis to Chiang Mai on the board right now. The list refreshes hourly.
What is the lowest price ever seen from St Louis to Chiang Mai?
The lowest fare we've recorded from St Louis to Chiang Mai is $1148, based on 106 price observations over 4 months.
How much does a flight from St Louis to Chiang Mai cost?
The typical round-trip fare we observed from St Louis to Chiang Mai is $1181, against a recorded low of $1148. These are observations, not quotes.
When is the cheapest month to fly St Louis to Chiang Mai?
September was the cheapest month we observed from St Louis to Chiang Mai and July the dearest, over 4 months of data.
What is the current price from St Louis to Chiang Mai?
The most recent fare our sweep saw from St Louis to Chiang Mai is $1199, on Oct 16. It is an unverified observation rather than a verified deal, so check it before booking.