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Cheap flights from St. Louis to Florence from $470

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Florence departing on 1/7. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
2:54 pm - 11:45 amSTL-FLR
37h 51m2 stops
British Airways Logo
12:10 pm - 10:44 pmFLR-STL
41h 34m2 stops
$470British Airways
Find Deal
Wed, Jan 7 - Wed, Jan 14
British Airways Logo
11:34 am - 2:15 pmSTL-FLR
19h 41m2 stops
British Airways Logo
12:45 pm - 11:22 pmFLR-STL
41h 37m2 stops
$471British Airways
Find Deal
Mon, Mar 2 - Mon, Mar 30
United Airlines Logo
9:57 am - 12:35 pmSTL-FLR
19h 38m2 stops
United Airlines Logo
9:35 am - 11:59 pmFLR-STL
21h 24m2 stops
$487United Airlines
Find Deal
Fri, Feb 6 - Tue, Feb 10
United Airlines Logo
6:30 pm - 12:35 pmSTL-FLR
36h 05m2 stops
United Airlines Logo
2:15 pm - 9:47 pmFLR-STL
37h 32m2 stops
$607United Airlines
Find Deal
Sat, Mar 21 - Sat, Mar 28
Multiple Airlines Logo
3:50 pm - 1:35 pmSTL-FLR
14h 45m1 stop
Multiple Airlines Logo
6:30 am - 11:59 pmFLR-STL
24h 29m2 stops
$610Multiple Airlines
Find Deal
Wed, Jan 7 - Wed, Jan 14
United Airlines Logo
6:30 pm - 4:30 pmSTL-FLR
40h 00m2 stops
United Airlines Logo
2:15 pm - 1:30 pmFLR-STL
29h 15m1 stop
$804United Airlines
Find Deal
Sat, Mar 21 - Sat, Mar 28
Lufthansa Logo
3:50 pm - 1:35 pmSTL-FLR
14h 45m1 stop
Lufthansa Logo
6:30 am - 1:55 pmFLR-STL
14h 25m1 stop
$809Lufthansa
Find Deal
Wed, Jan 7 - Wed, Jan 14
Multiple Airlines Logo
9:57 am - 1:35 pmSTL-FLR
20h 38m3 stops
Multiple Airlines Logo
6:30 am - 3:29 pmFLR-STL
39h 59m2 stops
$898Multiple Airlines
Find Deal
Wed, Jan 7 - Wed, Jan 14
Iberia Logo
12:06 pm - 7:35 pmSTL-FLR
24h 29m2 stops
Iberia Logo
6:45 am - 8:02 pmFLR-STL
20h 17m2 stops
$992Iberia
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Wed, May 20 - Thu, May 28
Iberia Logo
11:14 am - 11:05 pmSTL-FLR
28h 51m2 stops
Iberia Logo
1:50 pm - 9:31 amFLR-STL
26h 41m2 stops
$1,006Iberia
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Tue, May 19 - Fri, May 29

British Airways flights from St. Louis to Florence

Our best British Airways deals on St. Louis to Florence flight tickets
British Airways
Jan 7
STL2:54 pmLambert-St Louis
37h 51m
2 stops
FLR11:45 amFlorence Peretola
Jan 14
FLR12:10 pmFlorence Peretola
41h 34m
2 stops
STL10:44 pmLambert-St Louis
$470
Find similar
British Airways
Mar 2
STL11:34 amLambert-St Louis
19h 41m
2 stops
FLR2:15 pmFlorence Peretola
Mar 30
FLR12:45 pmFlorence Peretola
41h 37m
2 stops
STL11:22 pmLambert-St Louis
$471
Find similar
British Airways
May 19
STL7:50 amLambert-St Louis
31h 30m
2 stops
FLR10:20 pmFlorence Peretola
May 29
FLR7:05 amFlorence Peretola
23h 18m
2 stops
STL11:23 pmLambert-St Louis
$1,042
Find similar

United Airlines flights from St. Louis to Florence

Our best United Airlines deals on St. Louis to Florence flight tickets
United Airlines
Feb 6
STL9:57 amLambert-St Louis
19h 38m
2 stops
FLR12:35 pmFlorence Peretola
Feb 10
FLR9:35 amFlorence Peretola
21h 24m
2 stops
STL11:59 pmLambert-St Louis
$487
Find similar
United Airlines
Mar 21
STL6:30 pmLambert-St Louis
36h 05m
2 stops
FLR12:35 pmFlorence Peretola
Mar 28
FLR2:15 pmFlorence Peretola
37h 32m
2 stops
STL9:47 pmLambert-St Louis
$607
Find similar
United Airlines
Mar 21
STL6:30 pmLambert-St Louis
40h 00m
2 stops
FLR4:30 pmFlorence Peretola
Mar 28
FLR2:15 pmFlorence Peretola
29h 15m
1 stop
STL1:30 pmLambert-St Louis
$804
Find similar

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 November 29, 2025.
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

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Wed 1/7

2:54 pm-11:45 am

2 stops37h 51m

Florence Peretola

Wed 1/14

12:10 pm-10:44 pm

2 stops41h 34m

$470

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Mon 3/2

11:34 am-2:15 pm

2 stops19h 41m

Florence Peretola

Mon 3/30

12:45 pm-11:22 pm

2 stops41h 37m

$471

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Fri 2/6

9:57 am-12:35 pm

2 stops19h 38m

Florence Peretola

Tue 2/10

9:35 am-11:59 pm

2 stops21h 24m

$487

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Sat 3/21

6:30 pm-12:35 pm

2 stops36h 05m

Florence Peretola

Sat 3/28

2:15 pm-9:47 pm

2 stops37h 32m

$607

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Wed 1/7

3:50 pm-1:35 pm

1 stop14h 45m

Florence Peretola

Wed 1/14

6:30 am-11:59 pm

2 stops24h 29m

$610

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Sat 3/21

6:30 pm-4:30 pm

2 stops40h 00m

Florence Peretola

Sat 3/28

2:15 pm-1:30 pm

1 stop29h 15m

$804

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Wed 1/7

3:50 pm-1:35 pm

1 stop14h 45m

Florence Peretola

Wed 1/14

6:30 am-1:55 pm

1 stop14h 25m

$809

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Wed 1/7

9:57 am-1:35 pm

3 stops20h 38m

Florence Peretola

Wed 1/14

6:30 am-3:29 pm

2 stops39h 59m

$898

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Wed 5/20

12:06 pm-7:35 pm

2 stops24h 29m

Florence Peretola

Thu 5/28

6:45 am-8:02 pm

2 stops20h 17m

$992

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Tue 5/19

11:14 am-11:05 pm

2 stops28h 51m

Florence Peretola

Fri 5/29

1:50 pm-9:31 am

2 stops26h 41m

$1,006

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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?

What is the cheapest month to fly to Florence?

If you aren’t able to travel during the month of November, then book flights to Florence from St. Louis during February instead. Flights to Florence in February, while not as cheap as those in November, still average around $748.

What is the cheapest day to depart on your flight to Florence?

On average, the least expensive day to fly to Florence from St. Louis is on a Monday. momondo users have found tickets for Monday departures for as low as $1,112. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Florence on Thursday is $1,880.

What is the cheapest time of day to depart on your flight to Florence?

Our data shows that the cheapest St. Louis to Florence flights are usually those with departure times in the evening. Our users have found flights to Florence in the evening for as low as $1,229. Flights to Florence are more costly at noon, with an average ticket price of $1,458. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You could potentially save up to 20% 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

14h 09m

Direct flights

None
The fastest flight from St. Louis to Florence takes 14h 09m
There are no direct flights from St. Louis to Florence. There are no popular flight routes from St. Louis to Florence.
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  • 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 14h 40m, 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
United AirlinesPriceFrom $496Free CancellationRating
7.4
9,057 reviews
Search United Airlines flights
LufthansaPriceFrom $497Free CancellationRating
6.8
7,598 reviews
Search Lufthansa flights
British AirwaysPriceFrom $724Free CancellationRating
6.7
7,545 reviews
Search British Airways flights
DeltaPriceFrom $747Free CancellationRating
7.9
8,011 reviews
Search Delta flights

Traveling to a place near Florence?

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

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.

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