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Cheap flights from St. Louis to Florence from $346

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 2/27. 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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Find the cheapest flights from St. Louis to Florence

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
11:59 am - 11:20 am
STL
-
FLR
16h 21m
2 stops
British Airways Logo
3:20 pm - 11:35 pm
FLR
-
STL
39h 15m
2 stops
$456British Airways
mar., feb. 24 - jue., mar. 5
Lufthansa Logo
6:55 pm - 8:40 pm
STL
-
FLR
18h 45m
2 stops
Lufthansa Logo
6:30 am - 1:55 pm
FLR
-
STL
14h 25m
1 stop
$464Lufthansa
mié., feb. 25 - mié., mar. 4
Lufthansa Logo
6:55 pm - 8:40 pm
STL
-
FLR
18h 45m
2 stops
Lufthansa Logo
1:15 pm - 10:59 pm
FLR
-
STL
16h 44m
2 stops
$467Lufthansa
mié., feb. 25 - mié., mar. 4
United Airlines Logo
6:00 pm - 4:30 pm
STL
-
FLR
15h 30m
2 stops
United Airlines Logo
9:45 am - 10:59 pm
FLR
-
STL
20h 14m
2 stops
$479United Airlines
mié., feb. 25 - jue., mar. 5
United Airlines Logo
6:00 pm - 4:30 pm
STL
-
FLR
15h 30m
2 stops
United Airlines Logo
9:35 am - 9:05 pm
FLR
-
STL
18h 30m
2 stops
$480United Airlines
mié., feb. 25 - mar., mar. 3
Lufthansa Logo
11:39 am - 10:00 pm
STL
-
FLR
27h 21m
2 stops
Lufthansa Logo
6:30 am - 1:55 pm
FLR
-
STL
14h 25m
1 stop
$482Lufthansa
mar., feb. 24 - mié., mar. 4
Lufthansa Logo
6:45 pm - 6:30 pm
STL
-
FLR
16h 45m
2 stops
Lufthansa Logo
6:30 am - 1:55 pm
FLR
-
STL
14h 25m
1 stop
$483Lufthansa
vie., feb. 27 - vie., mar. 6
Lufthansa Logo
6:55 pm - 8:40 pm
STL
-
FLR
18h 45m
2 stops
Lufthansa Logo
1:15 pm - 11:59 pm
FLR
-
STL
17h 44m
2 stops
$484Lufthansa
mié., feb. 25 - mar., mar. 3
United Airlines Logo
12:15 pm - 11:00 am
STL
-
FLR
15h 45m
2 stops
United Airlines Logo
6:30 am - 1:55 pm
FLR
-
STL
14h 25m
1 stop
$485United Airlines
mar., feb. 24 - mié., mar. 4
British Airways Logo
12:11 pm - 10:20 pm
STL
-
FLR
27h 09m
2 stops
British Airways Logo
7:05 am - 7:30 pm
FLR
-
STL
19h 25m
1 stop
$486British Airways
vie., abr. 17 - mié., abr. 22

Air Canada flights from St. Louis to Florence

Our best Air Canada deals on St. Louis to Florence flight tickets
Air Canada
Feb 26
STL4:05 pmLambert-St Louis
23h 10m
2 stops
FLR10:15 pmFlorence Peretola
Mar 4
FLR6:30 amFlorence Peretola
39h 59m
2 stops
STL3:29 pmLambert-St Louis
$507
Air Canada
Feb 26
STL4:05 pmLambert-St Louis
23h 10m
2 stops
FLR10:15 pmFlorence Peretola
Mar 5
FLR2:15 pmFlorence Peretola
32h 14m
2 stops
STL3:29 pmLambert-St Louis
$514
Air Canada
Mar 4
STL8:17 amLambert-St Louis
18h 28m
3 stops
FLR9:45 amFlorence Peretola
Mar 11
FLR6:30 amFlorence Peretola
20h 37m
3 stops
STL9:07 pmLambert-St Louis
$625

British Airways flights from St. Louis to Florence

Our best British Airways deals on St. Louis to Florence flight tickets
British Airways
Feb 18
STL4:05 pmLambert-St Louis
36h 40m
2 stops
FLR11:45 amFlorence Peretola
Feb 25
FLR12:10 pmFlorence Peretola
38h 20m
2 stops
STL7:30 pmLambert-St Louis
$439
British Airways
Feb 24
STL11:59 amLambert-St Louis
16h 21m
2 stops
FLR11:20 amFlorence Peretola
Mar 5
FLR3:20 pmFlorence Peretola
39h 15m
2 stops
STL11:35 pmLambert-St Louis
$456
British Airways
Apr 17
STL12:11 pmLambert-St Louis
27h 09m
2 stops
FLR10:20 pmFlorence Peretola
Apr 22
FLR7:05 amFlorence Peretola
19h 25m
1 stop
STL7:30 pmLambert-St Louis
$486

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 enero 21, 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

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

mar. 2/24

11:59 am-11:20 am

2 stops16h 21m

Florence Peretola

jue. 3/5

3:20 pm-11:35 pm

2 stops39h 15m

$456

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

mié. 2/25

6:55 pm-8:40 pm

2 stops18h 45m

Florence Peretola

mié. 3/4

6:30 am-1:55 pm

1 stop14h 25m

$464

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

mié. 2/25

6:55 pm-8:40 pm

2 stops18h 45m

Florence Peretola

mié. 3/4

1:15 pm-10:59 pm

2 stops16h 44m

$467

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

mié. 2/25

6:00 pm-4:30 pm

2 stops15h 30m

Florence Peretola

jue. 3/5

9:45 am-10:59 pm

2 stops20h 14m

$479

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

mié. 2/25

6:00 pm-4:30 pm

2 stops15h 30m

Florence Peretola

mar. 3/3

9:35 am-9:05 pm

2 stops18h 30m

$480

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

mar. 2/24

11:39 am-10:00 pm

2 stops27h 21m

Florence Peretola

mié. 3/4

6:30 am-1:55 pm

1 stop14h 25m

$482

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

vie. 2/27

6:45 pm-6:30 pm

2 stops16h 45m

Florence Peretola

vie. 3/6

6:30 am-1:55 pm

1 stop14h 25m

$483

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

mié. 2/25

6:55 pm-8:40 pm

2 stops18h 45m

Florence Peretola

mar. 3/3

1:15 pm-11:59 pm

2 stops17h 44m

$484

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

mar. 2/24

12:15 pm-11:00 am

2 stops15h 45m

Florence Peretola

mié. 3/4

6:30 am-1:55 pm

1 stop14h 25m

$485

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

vie. 4/17

12:11 pm-10:20 pm

2 stops27h 09m

Florence Peretola

mié. 4/22

7:05 am-7:30 pm

1 stop19h 25m

$486

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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?

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 December instead. Flights to Florence in December, while not as cheap as those in November, still average around $632.

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

You could potentially save up to 58% 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 46m

Direct flights

None
The fastest flight from St. Louis to Florence takes 14h 46m
There are no direct flights from St. Louis to Florence. There are no popular flight routes from St. Louis to Florence.
Search flight deals

  • 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 46m, 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
LufthansaPriceFrom $490Free CancellationRating
6.8
7,738 reviews
Search Lufthansa flights
United AirlinesPriceFrom $496Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
DeltaPriceFrom $498Free CancellationRating
7.9
8,088 reviews
Search Delta flights
British AirwaysPriceFrom $735Free CancellationRating
6.7
7,689 reviews
Search British Airways 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
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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1 adult
vie. 2/20
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