Cheap flights from St. Louis (STL) to Southampton (SOU)

Tuesday flights are found to be more expensive to fly from St. Louis to Southampton. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Southampton.

Travelers have found it’s best to book a flight 51 days in advance to save up to 76% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 51 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Southampton 1-2 weeks in advance for as low as $1,273, or $1,825 for flights within the next 24 hours.

Our data shows that February tends to be the cheapest month to fly to Southampton from St. Louis. Users have commonly found prices around $906 for the month, but tickets can be as low as $657. Due to multiple factors, prepare for potentially higher prices in July.

When flying from St. Louis to Southampton, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Great question - STL to SOU just means Lambert-St Louis Airport to Southampton Eastleigh Airport. Now you’ll know what these unique codes when you look for flights!