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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Alternative airports near St. Paul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Minneapolis - St. Paul Intl. MSP. Cheapest option available. Average driving time to city center is 13 minutes. Flights from $332
MSP
Minneapolis - St. Paul Intl.
Cheapest
Average driving time to city center13 min
Flights from $332

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP) cost?
Secure a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP)?
Traveling in is a good way to save, as it's the cheapest month for flights between STL and STP. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from STL to STP. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP)?
There aren't any daily nonstop flights available from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from STL to STP?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Minneapolis - St. Paul from Lambert-St. Louis Intl. Airport (STL)?
Minneapolis - St. Paul Intl. Airport (MSP) is the only airport in Minneapolis - St. Paul with direct flights from Lambert-St. Louis Intl. Airport (STL). Browse your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP) last-minute?
Waiting until just before your trip to book a flight from STL to STP often results in higher prices. While it's possible to find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible to maximize your chances of landing a bargain.
Is it cheaper to book a STL to STP flight and hotel package?
You'll generally save money by booking a STL to STP flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your preferred flights and accommodations, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to St. Paul Downtown Airport (STP)?
In most cases, you can modify or cancel your STL to STP flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like further information, go to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
St. Paul Downtown
Distance
449 mi

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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.

 

St. Louis to St. Paul Flights

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