Cheap flights from Buffalo to St. Louis (BUF - STL) from $87

Thursday flights are found to be more expensive to fly from Buffalo to St. Louis. 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 St. Louis.

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 58 days in advance, which can save you up to 23% on flights from Buffalo to St. Louis compared to booking the week you need them. Waiting 58 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $392. For sooner than that we have options available in the next 3 days from $442.

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to St. Louis. Flights to St. Louis from Buffalo in February are about $391 on average during February, but can be found for as low as $256.

One of the essential ways to save on airfare from Buffalo to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 25% on airfare.

Some of our airline partners flying from Buffalo to Lambert-St Louis have new flexible policies in place due to COVID-19. Delta, American Airlines, and Frontier are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Delta with this kind of flexibility.

Yes, there are multiple flights from Buffalo to St. Louis for under $200. The cheapest flight booked recently is on Frontier for just $188, but on average you can expect to pay $326.

There are currently 9+ open flights from Buffalo to St. Louis within the next 7 days for less than $300.

Our cheapest airline available from Buffalo to St. Louis is Frontier. Our recent data shows that you can find tickets from as low as $188 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $257 and $674 round-trip. Frontier is currently priced 51% below the average price you’ll pay for this route.

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $87. American Airlines flights start at $108 while deals on United Airlines start at $357 one-way.

Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Buffalo to St. Louis.

This is defined as Buffalo Airport (BUF) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely.