Cheap flights from Oklahoma to St. Louis from $31

In general, May is the cheapest month to fly from Oklahoma to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $70. The month of December is another great option to travel to St. Louis, with average flight prices from Oklahoma averaging around $77.

The cheapest day to depart on your flight to St. Louis is on a Monday when prices can be found for as low as $376. 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 $470. 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 in the morning 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 morning. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $415 per ticket.

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

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

No. A direct flight is the cheapest option for a flight between Oklahoma to St. Louis.

Frontier, Delta, and United Airlines are the most popular carriers operating from Oklahoma to Lambert-St Louis

Southwest, American Airlines and Frontier are the top three most popular airlines that fly to St. Louis from Oklahoma according to our data. Southwest is the first choice among our users, with 80% 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.

202 flights are operational weekly from Oklahoma to St. Louis as of June 2026. The most popular departure day for this route is Thu, with 18% of flights per week taking off on this day.

Flight times from Oklahoma to St. Louis vary, but if you’re flying out of Stillwater and flying into St. Louis (one of the most popular routes), then the duration is 4h 01m on average. Another popular route from Oklahoma to St. Louis is flying from Oklahoma City to St. Louis, which will take roughly 4h 24m. Keep in mind that layovers or delays could extend your travel time.