$473 Cheap Flights from St. Louis (STL) to Florence (FLR)

View $473 flight on Mon, Oct 20, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Florence Airport, Peretola (FLR)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from St. Louis to Florence (STL-FLR)

Prices were available within the past 7 days and start at $473 for one-way flights and $605 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Nov 30 - Wed, Dec 10
STL
St. Louis
FLR
Florence
$605 Roundtrip, found 4 days ago
$605
Roundtrip
found 4 days ago
Select United flight, departing Sun, Nov 30 from St. Louis to Florence, returning Wed, Dec 10, priced at $605 found 4 days ago
United
Mon, Oct 20 - Wed, Nov 5
STL
St. Louis
FLR
Florence
$606 Roundtrip, found 2 days ago
$606
Roundtrip
found 2 days ago
Select United flight, departing Mon, Oct 20 from St. Louis to Florence, returning Wed, Nov 5, priced at $606 found 2 days ago
United
Mon, Dec 1 - Wed, Dec 10
STL
St. Louis
FLR
Florence
$608 Roundtrip, found 4 days ago
$608
Roundtrip
found 4 days ago
Select United flight, departing Mon, Dec 1 from St. Louis to Florence, returning Wed, Dec 10, priced at $608 found 4 days ago
Air Canada
Wed, Nov 12 - Wed, Dec 3
STL
St. Louis
FLR
Florence
$608 Roundtrip, found 2 days ago
$608
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Nov 12 from St. Louis to Florence, returning Wed, Dec 3, priced at $608 found 2 days ago
Lufthansa
Wed, Nov 26 - Wed, Dec 3
STL
St. Louis
FLR
Florence
$609 Roundtrip, found 22 hours ago
$609
Roundtrip
found 22 hours ago
Select Lufthansa flight, departing Wed, Nov 26 from St. Louis to Florence, returning Wed, Dec 3, priced at $609 found 22 hours ago
United
Sun, Feb 1 - Wed, Feb 11
STL
St. Louis
FLR
Florence
$609 Roundtrip, found 3 days ago
$609
Roundtrip
found 3 days ago
Select United flight, departing Sun, Feb 1 from St. Louis to Florence, returning Wed, Feb 11, priced at $609 found 3 days ago
United
Sun, Jan 11 - Wed, Jan 21
STL
St. Louis
FLR
Florence
$610 Roundtrip, found 3 days ago
$610
Roundtrip
found 3 days ago
Select United flight, departing Sun, Jan 11 from St. Louis to Florence, returning Wed, Jan 21, priced at $610 found 3 days ago
United
Mon, Dec 1 - Wed, Dec 10
STL
St. Louis
FLR
Florence
$611 Roundtrip, found 4 days ago
$611
Roundtrip
found 4 days ago
Select United flight, departing Mon, Dec 1 from St. Louis to Florence, returning Wed, Dec 10, priced at $611 found 4 days ago
British Airways
Wed, Jan 21 - Tue, Jan 27
STL
St. Louis
FLR
Florence
$617 Roundtrip, found 3 hours ago
$617
Roundtrip
found 3 hours ago
Select British Airways flight, departing Wed, Jan 21 from St. Louis to Florence, returning Tue, Jan 27, priced at $617 found 3 hours ago
American Airlines
Wed, Nov 26 - Wed, Dec 3
STL
St. Louis
FLR
Florence
$620 Roundtrip, found 22 hours ago
$620
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Wed, Nov 26 from St. Louis to Florence, returning Wed, Dec 3, priced at $620 found 22 hours ago

Find the cheapest month to fly from St. Louis (STL) to Florence (FLR)

March is typically the cheapest month to fly

From $608 - $1,792 per traveler.

Graph displaying average flight prices per month

Flights from St. Louis (STL) to Florence (FLR)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Peretola
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Iberia, KLM, Lufthansa, Scandinavian Airlines, United
Roundtrip price
$605
Distance
4927 mi

St. Louis to Florence Flights

The cheapest times to fly from St. Louis to Florence

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 Florence are during the month of November. You can find some of the cheapest flights from St. Louis to Florence with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to Florence: 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 Florence

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 Florence in 2025. You can also book with separate airlines for your outbound and return journeys, from $473 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 Florence 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 Florence 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

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Peretola Airport (FLR) cost?
Discover the latest flight deals from STL to FLR by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from STL to FLR?
The cheapest flights from STL to FLR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from STL to FLR?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to FLR. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Peretola Airport (FLR)?
There aren't any daily direct flights departing from Lambert-St. Louis Intl. Airport (STL) to Peretola Airport (FLR). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from STL to FLR?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can vary depending on the time of year, carrier and other factors.*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 Peretola Airport (FLR)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Peretola Airport (FLR) that takes off before 3 PM to reduce the risk of delays and cancellations. 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.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Peretola Airport (FLR) last-minute?
Last-minute bookings from STL to FLR are usually more expensive. To lock in the lowest prices, start looking for flights well ahead of time. That said, if you can play around with your travel dates, it's possible to score a cheap ticket right before your trip.
Is it cheaper to book a STL to FLR flight and hotel package?
You'll typically save money by securing a STL to FLR 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 it all in one place. Once you've selected your preferred accommodations and flights, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Peretola Airport (FLR)?
In most instances, you're able to cancel or reschedule your STL to FLR flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need further details, visit our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.