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

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Frequently asked questions

Is it cheaper to buy a plane ticket from BWI to St. Louis Downtown Airport last minute?
Being spontaneous is a fantastic way to travel the world, but it's not necessarily the best method to grab a cheap airfare. It's better to book your BWI Marshall to St. Louis Downtown Airport journey in advance instead of leaving it to the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. You can unleash your spontaneous side when you arrive at your destination!
What airports do you fly into for East St. Louis from Baltimore?
With St. Louis Downtown Airport (CPS), Lambert-St. Louis Intl. Airport (STL) and MidAmerica-St. Louis Airport (BLV) to select from, connecting from Baltimore to East St. Louis is easy. The city's major hub, St. Louis Downtown Airport (CPS), is about 3 kilometers south of the downtown area. As well as the price of tickets, consider things like public transportation options from the airport and the distance to your hotel before making your choice. Get your East St. Louis trip off to an awesome start by discovering Busch Stadium and Gateway Arch.
Can I change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to CPS?
It's a snap to make amendments to your Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to St. Louis Downtown Airport journey yourself. Just go to the Expedia Trips portal and choose "change flight." Look for new flights and lock in the one that works with your new plans. You'll get an estimate of your flight change fee, if applicable. You can also visit our Customer Service portal to chat to our Virtual Agent and get answers to your questions.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
St. Louis Downtown
Distance
1161 km

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