Cheap Flights from Southampton to St Louis
No deal from Southampton to St Louis has cleared our price bar yet. What we have seen on the route is below.
Across 3 months of observations from Southampton to St Louis, the lowest round-trip fare we recorded was $1396, in August. The typical fare was $1801. August was the cheapest month we saw and September the dearest.
The most recent price we saw on this route was $1895 on Delta and KLM, seen Oct 16. It is an unverified observation and may have changed.
See every deal <a href="/from/southampton">from Southampton</a>, <a href="/to/st-louis">to St Louis</a>, or the return direction <a href="/from/st-louis/to/southampton">St Louis to Southampton</a>.
Latest price we saw: Southampton to St Louis
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 |
|---|---|---|---|---|---|---|
| Southampton (SOU) to St Louis (STL) | $1895 | 22.7¢ | Oct 17 – Oct 23 | Delta and KLM | Oct 16 | Check price |
Price history: Southampton to St Louis
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $1544 | $1765 | 3 |
| Sep 2026 | $1552 | $1646 | 2 |
| Aug 2026 | $1396 | $1993 | 8 |
Frequently asked questions
How many flight deals from Southampton to St Louis are on Sparkflights right now?
There are 0 verified deals from Southampton to St Louis on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Southampton to St Louis?
The lowest fare we've recorded from Southampton to St Louis is $1396, based on 13 price observations over 3 months.
How much does a flight from Southampton to St Louis cost?
The typical round-trip fare we observed from Southampton to St Louis is $1801, against a recorded low of $1396. These are observations, not quotes.
When is the cheapest month to fly Southampton to St Louis?
August was the cheapest month we observed from Southampton to St Louis and September the dearest, over 3 months of data.
What is the current price from Southampton to St Louis?
The most recent fare our sweep saw from Southampton to St Louis is $1895, on Oct 16. It is an unverified observation rather than a verified deal, so check it before booking.