To save on the cost of your flight from Maryland to St Louis, book at least 31 days before your planned departure. Booking around this time can save you about 96% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $374 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $553.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to St Louis. Flights to St Louis from Maryland in August are about $266 on average during August, but can be found for as low as $158.
The chart below displays the airlines Cheapflights users traveling from Maryland to St Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
||$111||$261||No cancel fee||62%|
||$140||$285||No cancel fee||N/A|
||$101||$324||No cancel fee||69%|
||$128||$365||No cancel fee||71%|