Cheap flights from Missouri to Washington, D.C. from $59

If you’re not able to fly to Baltimore in March, then October is your next best option. Flight prices from Missouri to Baltimore during October average around $96.

The cheapest day to depart from Missouri to Baltimore is on a Wednesday. Travelers who choose to depart for Baltimore on a Wednesday will often find tickets for as low as $375. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $492. These prices are subject to change though, so be sure to set up a Price Alert for flights to Baltimore.

Flying to Baltimore from Missouri at noon is the least expensive time of day to depart. momondo users have found prices as low as $397 when looking at flights departing at noon. Flights in the evening are often more expensive with an average ticket price of $431.

Fly from Lambert-St Louis to Baltimore/Washington for the best Missouri - Baltimore/Washington flight prices

You are more likely to see cheaper flights to Baltimore from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Baltimore for around $375 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Baltimore from Missouri for as low as $215 on momondo.

Frontier, Southwest, and Delta are the most popular carriers operating from Missouri to Baltimore/Washington

Southwest, American Airlines and United Airlines are the top three most popular airlines that fly to Baltimore from Missouri according to our data. Southwest is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Baltimore. Keep in mind that there are 6 different airlines that fly to Baltimore on a routine basis, so you have a few additional options to choose from.

The number of flights available between Missouri and Baltimore is 4 per day as of May 2026. The most frequent departure time is 5:00AM, with 45% of daily flights leaving in the afternoon.

As of May 2026, there are 30 flights per week flying from Missouri to Baltimore. The most common day of the week flights depart is Thu, with 23% of flights taking off on this day.