Cheap flights from St. Louis to Paris from $413

The month of January is, on average, the cheapest month to fly to Paris from St. Louis, with most prices found around $642. If you are unable to visit Paris during the month of January, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $667.

You are more likely to see cheaper flights to Paris from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Paris for around $940 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Paris from St. Louis for as low as $718 on momondo.

You could potentially save up to 13% on your flight if you consider stops on a St. Louis to Paris flight.

As of April 2026, prices for St. Louis to Paris flights are approximately 29% cheaper when compared to flights at the same time last year.

Delta, Virgin Atlantic, and United Airlines are the most popular carriers operating from Lambert-St Louis to Paris

United Airlines, Air Canada and Air France are the top three most popular airlines that fly to Paris from St. Louis according to our data. United Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Paris. Keep in mind that there are 7 different airlines that fly to Paris on a routine basis, so you have a few additional options to choose from.

Atlanta (ATL) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $689.

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 11h 54m.

Atlanta (ATL) has the shortest average layover time for this route: 1h 42m.