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Cheap flights from St. Louis to Florence from $467

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Florence departing on 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Florence

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:04 pm - 4:20 pm-
14h 16m
United Airlines Logo
6:30 am - 1:45 pm-
14h 15m
$772United Airlines
Tue, Dec 1 - Fri, Dec 4
United Airlines Logo
7:30 am - 4:20 pm-
25h 50m
United Airlines Logo
2:20 pm - 3:26 pm-
32h 06m
$780United Airlines
Tue, Dec 1 - Fri, Dec 4
Multiple Airlines Logo
3:30 pm - 6:30 pm-
20h 00m
Multiple Airlines Logo
6:30 am - 8:20 pm-
20h 50m
$874Multiple Airlines
Mon, Aug 31 - Fri, Sep 11
Multiple Airlines Logo
3:30 pm - 6:30 pm-
20h 00m
Multiple Airlines Logo
9:50 am - 6:41 pm-
15h 51m
$874Multiple Airlines
Mon, Aug 31 - Wed, Sep 9
Lufthansa Logo
3:30 pm - 6:30 pm-
20h 00m
Lufthansa Logo
6:30 am - 1:25 pm-
13h 55m
$876Lufthansa
Mon, Aug 31 - Fri, Sep 11
Lufthansa Logo
3:30 pm - 6:30 pm-
20h 00m
Lufthansa Logo
6:30 am - 1:25 pm-
13h 55m
$877Lufthansa
Mon, Aug 31 - Fri, Sep 11
Delta Logo
10:33 am - 12:10 pm-
18h 37m
Delta Logo
6:30 am - 8:35 pm-
21h 05m
$892Delta
Mon, Aug 31 - Thu, Sep 10
Delta Logo
5:30 pm - 5:15 pm-
16h 45m
Delta Logo
6:30 am - 8:35 pm-
21h 05m
$892Delta
Mon, Aug 31 - Fri, Sep 11
British Airways Logo
9:35 pm - 10:20 pm-
17h 45m
British Airways Logo
7:10 am - 7:30 pm-
19h 20m
$1,137British Airways
Wed, Aug 26 - Sun, Aug 30
British Airways Logo
9:35 pm - 10:20 pm-
17h 45m
British Airways Logo
7:10 am - 7:30 pm-
19h 20m
$1,137British Airways
Wed, Aug 26 - Sun, Aug 30

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Lufthansa flights from St. Louis to Florence

Our best Lufthansa deals on St. Louis to Florence flight tickets
Lufthansa
Aug 31
STL3:30 pmLambert-St Louis
20h 00m
1 stop
FLR6:30 pmFlorence Peretola
Sep 11
FLR6:30 amFlorence Peretola
13h 55m
1 stop
STL1:25 pmLambert-St Louis
$876
Lufthansa
Aug 31
STL3:30 pmLambert-St Louis
20h 00m
1 stop
FLR6:30 pmFlorence Peretola
Sep 11
FLR6:30 amFlorence Peretola
13h 55m
1 stop
STL1:25 pmLambert-St Louis
$877
Lufthansa
Aug 31
STL1:00 pmLambert-St Louis
20h 35m
2 stops
FLR4:35 pmFlorence Peretola
Sep 10
FLR2:20 pmFlorence Peretola
15h 39m
2 stops
STL10:59 pmLambert-St Louis
$880

United Airlines flights from St. Louis to Florence

Our best United Airlines deals on St. Louis to Florence flight tickets
United Airlines
Dec 1
STL7:04 pmLambert-St Louis
14h 16m
2 stops
FLR4:20 pmFlorence Peretola
Dec 4
FLR6:30 amFlorence Peretola
14h 15m
1 stop
STL1:45 pmLambert-St Louis
$772
United Airlines
Dec 1
STL7:30 amLambert-St Louis
25h 50m
2 stops
FLR4:20 pmFlorence Peretola
Dec 4
FLR2:20 pmFlorence Peretola
32h 06m
2 stops
STL3:26 pmLambert-St Louis
$780
United Airlines
Aug 29
STL8:40 amLambert-St Louis
24h 55m
2 stops
FLR4:35 pmFlorence Peretola
Sep 9
FLR6:30 amFlorence Peretola
13h 55m
1 stop
STL1:25 pmLambert-St Louis
$935

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Florence that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 4, 2026.
Use the filters below to find and compare flights from St. Louis to Florence that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Tue 12/1

7:04 pm-4:20 pm

2 stops14h 16m

Florence Peretola

Fri 12/4

6:30 am-1:45 pm

1 stop14h 15m

$772

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Tue 12/1

7:30 am-4:20 pm

2 stops25h 50m

Florence Peretola

Fri 12/4

2:20 pm-3:26 pm

2 stops32h 06m

$780

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Mon 8/31

3:30 pm-6:30 pm

1 stop20h 00m

Florence Peretola

Fri 9/11

6:30 am-8:20 pm

2 stops20h 50m

$874

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Mon 8/31

3:30 pm-6:30 pm

1 stop20h 00m

Florence Peretola

Wed 9/9

9:50 am-6:41 pm

2 stops15h 51m

$874

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Mon 8/31

3:30 pm-6:30 pm

1 stop20h 00m

Florence Peretola

Fri 9/11

6:30 am-1:25 pm

1 stop13h 55m

$876

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Mon 8/31

3:30 pm-6:30 pm

1 stop20h 00m

Florence Peretola

Fri 9/11

6:30 am-1:25 pm

1 stop13h 55m

$877

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Mon 8/31

10:33 am-12:10 pm

2 stops18h 37m

Florence Peretola

Thu 9/10

6:30 am-8:35 pm

2 stops21h 05m

$892

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Mon 8/31

5:30 pm-5:15 pm

2 stops16h 45m

Florence Peretola

Fri 9/11

6:30 am-8:35 pm

2 stops21h 05m

$892

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Wed 8/26

9:35 pm-10:20 pm

1 stop17h 45m

Florence Peretola

Sun 8/30

7:10 am-7:30 pm

1 stop19h 20m

$1,137

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Wed 8/26

9:35 pm-10:20 pm

1 stop17h 45m

Florence Peretola

Sun 8/30

7:10 am-7:30 pm

1 stop19h 20m

$1,137

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Florence from

How to get the cheapest flight ticket from St. Louis to Florence

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Florence?

Prices are currently typical for flights on this route.

Typical prices usually range from $740 to $1,190.
The lowest price recently found on this route was $772.

What is the cheapest month to fly to Florence?

If you aren’t able to travel during the month of December, then book flights to Florence from St. Louis during February instead. Flights to Florence in February, while not as cheap as those in December, still average around $704.

Can stopping save me money on St. Louis to Florence flights?

You could potentially save up to 51% on your flight if you consider stops on a St. Louis to Florence flight.

When to book flights from St. Louis to Florence

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Florence according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Florence (STL to FLR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Florence

Fastest flight time

15h 15m

Direct flights

None
The fastest flight from St. Louis to Florence takes 15h 15m
There are no direct flights from St. Louis to Florence. There are no popular flight routes from St. Louis to Florence.
Search flight deals

Frequently asked questions about flying from St. Louis to Florence

  • How far is Lambert-St Louis to Florence Peretola by plane?

    There are 4926.2 mi between Lambert-St Louis and Florence Peretola. Flights usually cover this in 15h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Florence Peretola Airport?

    Prices for flights from Lambert-St Louis Airport to Florence Peretola Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Florence Peretola Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Florence Peretola Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Florence Peretola Airport.

  • What documentation or ID do you need to fly to Florence Peretola Airport?

    The travel and health documents you'll need for your trip to Florence Peretola Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Florence Peretola Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Florence?

Best airlines flying from St. Louis to Florence

Compare and see reviews for airlines that fly from St. Louis to Florence with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $489Free CancellationRating
6.7
8,150 reviews
Search British Airways flights
LufthansaPriceFrom $490Free CancellationRating
6.8
8,177 reviews
Search Lufthansa flights
United AirlinesPriceFrom $496Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights
DeltaPriceFrom $498Free CancellationRating
7.8
8,482 reviews
Search Delta flights

Traveling to a place near Florence?

Book flights to Florence if you plan to visit one of these locations
Prato
Siena
San Gimignano
Fiesole
Montecatini Terme
Pistoia
Arezzo
Colle di Val d'Elsa
Monteriggioni
Greve in Chianti
Impruneta
Volterra
Poggibonsi

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Florence?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Florence. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Florence with flexible booking policies on momondo?

momondo does allow users to show only those flights to Florence from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Florence?

Once you have performed a search for St. Louis to Florence flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Florence right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Florence now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Florence and let you know when they change.

An easier way to manage your Florence trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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