Cheap flights from Missouri to Washington, D.C. from $72

If you’re not able to fly to Baltimore in September, then April is your next best option. Flight prices from Missouri to Baltimore during April average around $300.

The cheapest day to depart from Missouri to Baltimore is on a Tuesday. Travelers who choose to depart for Baltimore on a Tuesday will often find tickets for as low as $358. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $476. 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 in the evening is the least expensive time of day to depart. momondo users have found prices as low as $393 when looking at flights departing in the evening. Flights in the morning are often more expensive with an average ticket price of $414.

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 $364 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 $269 on momondo.

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

Southwest, Delta, and United Airlines 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 5 per day as of March 2026. The most frequent departure time is 5:00AM, with 50% of daily flights leaving in the afternoon.

As of March 2026, there are 37 flights per week flying from Missouri to Baltimore. The most common day of the week flights depart is Mon, with 22% of flights taking off on this day.