Your next trip, last seen at €51
Lowest observedWhen to fly
Explore datesFind the dates that work for you
The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Airlines seen
- Southwest Airlines, American Airlines, Delta Air Lines, Frontier Airlines
- Non-stop
- Yes
About this route
Explore the fares we observed from Baltimore to St Louis. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,176 km
- Alternative airports
- SUS
Route-level information; individual journeys vary.
Published schedules report non-stop service with Southwest Airlines. Check current timetables.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Baltimore/Washington International Thurgood Marshall Airport (BWI) → Baltimore, city gazetteer reference point (39.2864, -76.6150): ≈ 13 km.
- St. Louis Lambert International Airport (STL) → St Louis, city gazetteer reference point (38.6270, -90.1994): ≈ 20 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Frequently asked
How much was a flight from Baltimore to St Louis?
A fare of €51 was seen on 25 Sep 2026. Fares change, so search your dates for the current price.
Are there direct flights from Baltimore to St Louis?
Yes. Published schedules report non-stop flights on this route with Southwest Airlines.
Which airlines fly from Baltimore to St Louis?
Routavio has seen these carriers on the route: Southwest Airlines, American Airlines, Delta Air Lines, Frontier Airlines.
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.