Cheap flights from Oklahoma City to St. Louis from $59

In general, August is the cheapest month to fly from Oklahoma City to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $259. The month of September is another great option to travel to St. Louis, with average flight prices from Oklahoma City averaging around $262.

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $374. 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 $456. 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 Oklahoma City in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $396 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $397 per ticket.

Fly from Oklahoma City Will Rogers World to Lambert-St Louis for the best Oklahoma City Will Rogers World - Lambert-St Louis flight prices

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

You could potentially save up to 56% on your flight if you consider stops on a Oklahoma City to St. Louis flight.

Southwest is the most popular carrier operating from Oklahoma City Will Rogers World to Lambert-St Louis

Southwest, American Airlines and Frontier are the top three most popular airlines that fly to St. Louis from Oklahoma City according to our data. Southwest is the first choice among our users, with 61% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

As of February 2026, there are 1 flights per day flying from Oklahoma City to St. Louis. The most common time of day flights depart is 5:00AM, with 40% of flights taking off in the morning.

12 flights are operational weekly from Oklahoma City to St. Louis as of February 2026. The most popular departure day for this route is Mon, with 33% of flights per week taking off on this day.