Cheap flights from Providence to St. Louis from $134

In general, January is the cheapest month to fly from Providence to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $381. The month of April is another great option to travel to St. Louis, with average flight prices from Providence averaging around $382.

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $440. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $552. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

Flying to St. Louis from Providence in the evening is the least expensive time of day to depart. momondo users have found prices as low as $427 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $479 per ticket.

Fly from Providence-TFGreen to Lambert-St Louis for the best Providence-TFGreen - Lambert-St Louis flight prices

There is only 1 cabin class available to choose from on Providence to St. Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of August 2026, prices for Providence to St. Louis flights are approximately 3% cheaper when compared to flights at the same time last year.

American Airlines and Delta are the most popular carriers operating from Providence-TFGreen to Lambert-St Louis

American Airlines, Southwest and Delta are the top three most popular airlines that fly to St. Louis from Providence according to our data. American Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.