Cheap Flights from St. Louis (STL) to St. Paul (STP)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to St. Paul, MN (STP-St. Paul Downtown)

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Flights from St. Louis (STL) to St. Paul (STP)
Origin airport
Lambert-St. Louis Intl.
Destination airport
St. Paul Downtown
Distance
449 mi

St. Louis to St. Paul Flights

The cheapest times to fly from St. Louis to St. Paul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to St. Paul are during the month of . You can find some of the cheapest flights from St. Louis to St. Paul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to St. Paul

Sunday is one of the best days to book for cheap flights from St. Louis to St. Paul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to St. Paul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to St. Paul in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to St. Paul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to St. Paul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

Is it cheaper to buy a plane ticket from STL to STP last minute?
When it’s time to book your flights, it’s better to be prepared. While it may be possible to pick up a last-minute deal on a STL to St. Paul Downtown Airport (STP) flight, tickets usually don’t get cheaper as the departure date 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 journeys it’s three to four months.
What airports do you fly into for Minneapolis - St. Paul from St. Louis?
St. Paul Downtown Airport (STP), Minneapolis - St. Paul Intl. Airport (MSP) and Flying Cloud Airport (FCM) are your options when connecting from St. Louis to Minneapolis - St. Paul. Around 7 mi east of the heart of Minneapolis - St. Paul, St. Paul Downtown Airport (STP) is the city’s major gateway. Keep in mind factors like flight arrival and departure times and the distance to your hotel before deciding on an airport. Mall of America and Target Field are two leading attractions to add to your must-see list when you arrive at your destination.
Can I change the date of my flight from STL to St. Paul Downtown Airport (STP)?
You can quickly and easily make changes to your Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport journey via the Expedia Trips portal. But before doing so, read through the rules in your itinerary to see what you’re allowed to do and if fees apply for changes. Some carriers have a change fee per person, plus any difference in prices. However, if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also visit our Customer Service portal for more info and to connect with our Virtual Agent.

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