Cheap Flights from Baltimore (BWI) to St. Louis (SUS)

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Frequently asked questions

Is it cheaper to buy a plane ticket from BWI Marshall to St. Louis Airport last minute?
When it comes to booking your flights, it pays to be prepared. While you could find a last-minute deal on a BWI Marshall to SUS flight, prices usually don't get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days in advance. For international travel it's three to four months.
What airports do you fly into for St. Louis from Baltimore?
Spirit of St. Louis Airport (SUS), Lambert-St. Louis Intl. Airport (STL) and St. Louis Downtown Airport (CPS) are your options when heading off from Baltimore to St. Louis. Approximately 40 kilometers west of the heart of St. Louis, Spirit of St. Louis Airport (SUS) is the city's main hub. Consider factors such as flight departure and arrival times and the distance to your hotel before settling on an airport. Busch Stadium and Gateway Arch are a couple of awesome attractions to add to your must-see list when you arrive at your destination.
Can I change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Spirit of St. Louis Airport (SUS)?
It's easy to make changes to your BWI Marshall to SUS trip yourself. Simply log in to the Expedia Trips portal and select "change flight." Look around for new flights and choose the one that fits your new plans. You'll get an estimate of flight change fees that may apply. Alternatively, visit our Customer Service portal to connect with our Virtual Agent and quickly get answers to your questions.

Travel information

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Spirit of St. Louis
Distance
1202 km

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