Cheap Flights from Washington (DCA) to St. Louis (CPS)

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Frequently asked questions

Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to St. Louis Downtown Airport (CPS) last minute?
When it's time to book your flights, it's better to be prepared. While it's possible to score a deal on a National Airport to St. Louis Downtown Airport flight at the last minute, 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 book a domestic flight is between 28 – 35 days ahead. For international journeys it's three to four months.
What airports do you fly into for East St. Louis from Washington?
St. Louis Downtown Airport (CPS), Lambert-St. Louis Intl. Airport (STL) and MidAmerica-St. Louis Airport (BLV) are your choices when traveling from Washington to East St. Louis. Approximately 3 kilometers south of the center of East St. Louis, St. Louis Downtown Airport (CPS) is the city's main gateway. Think about things such as flight arrival and departure times and the distance to your hotel before picking your airport. Busch Stadium and Gateway Arch are two amazing attractions to put on your must-see list when you arrive.
Can I change the date of my flight from National Airport to St. Louis Downtown Airport?
It's a breeze to make amendments to your Ronald Reagan Washington National Airport (DCA) to St. Louis Downtown Airport journey yourself. Access your details via the Expedia Trips portal and select "change flight." Browse around for new flights and secure the one that better suits your plans. You'll see an estimate of applicable flight change fees. Alternatively, head to our Customer Service portal to connect with our Virtual Agent and get answers to your questions.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
St. Louis Downtown
Distance
1130 km

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