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Cheap flights from Florence to St. Louis from $421

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Florence to St. Louis departing on 5/8. 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
0 bags

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Find the cheapest flights from Florence to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:30 am - 1:25 pm
FLR
-
STL
13h 55m
1 stop
United Airlines Logo
3:20 pm - 2:10 pm
STL
-
FLR
15h 50m
2 stops
$936United Airlines
Fri, May 1 - Mon, May 4
United Airlines Logo
6:30 am - 6:53 pm
FLR
-
STL
19h 23m
2 stops
United Airlines Logo
3:20 pm - 2:10 pm
STL
-
FLR
15h 50m
2 stops
$942United Airlines
Fri, May 1 - Mon, May 4
United Airlines Logo
6:30 am - 1:25 pm
FLR
-
STL
13h 55m
1 stop
United Airlines Logo
7:09 pm - 4:35 pm
STL
-
FLR
14h 26m
2 stops
$946United Airlines
Fri, May 1 - Mon, May 4
United Airlines Logo
6:30 am - 6:12 pm
FLR
-
STL
18h 42m
2 stops
United Airlines Logo
3:20 pm - 2:10 pm
STL
-
FLR
15h 50m
2 stops
$948United Airlines
Fri, May 1 - Mon, May 4
United Airlines Logo
6:30 am - 6:53 pm
FLR
-
STL
19h 23m
2 stops
United Airlines Logo
3:20 pm - 12:40 pm
STL
-
FLR
14h 20m
2 stops
$952United Airlines
Fri, May 1 - Mon, May 4
United Airlines Logo
6:30 am - 1:25 pm
FLR
-
STL
13h 55m
1 stop
United Airlines Logo
3:20 pm - 12:40 pm
STL
-
FLR
14h 20m
2 stops
$1,041United Airlines
Fri, May 1 - Mon, May 4
United Airlines Logo
10:45 am - 7:51 pm
FLR
-
STL
16h 06m
2 stops
United Airlines Logo
3:20 pm - 12:40 pm
STL
-
FLR
14h 20m
2 stops
$1,055United Airlines
Fri, May 1 - Mon, May 4
Lufthansa Logo
7:10 pm - 3:46 pm
FLR
-
STL
27h 36m
2 stops
Lufthansa Logo
8:35 am - 6:30 pm
STL
-
FLR
26h 55m
2 stops
$1,189Lufthansa
Sat, May 30 - Sat, Jun 6
Lufthansa Logo
7:10 pm - 1:25 pm
FLR
-
STL
25h 15m
1 stop
Lufthansa Logo
8:35 am - 6:30 pm
STL
-
FLR
26h 55m
2 stops
$1,528Lufthansa
Sat, May 30 - Sat, Jun 6
Multiple Airlines Logo
7:30 pm - 7:30 pm
FLR
-
STL
31h 00m
2 stops
Multiple Airlines Logo
8:40 am - 11:05 pm
STL
-
FLR
31h 25m
3 stops
$1,658Multiple Airlines
Sat, May 30 - Sat, Jun 6

Lufthansa flights from Florence to St. Louis

Our best Lufthansa deals on Florence to St. Louis flight tickets
Lufthansa
May 30
FLR7:10 pmFlorence Peretola
27h 36m
2 stops
STL3:46 pmLambert-St Louis
Jun 6
STL8:35 amLambert-St Louis
26h 55m
2 stops
FLR6:30 pmFlorence Peretola
$1,189
Lufthansa
May 30
FLR7:10 pmFlorence Peretola
25h 15m
1 stop
STL1:25 pmLambert-St Louis
Jun 6
STL8:35 amLambert-St Louis
26h 55m
2 stops
FLR6:30 pmFlorence Peretola
$1,528

United Airlines flights from Florence to St. Louis

Our best United Airlines deals on Florence to St. Louis flight tickets
United Airlines
May 1
FLR6:30 amFlorence Peretola
13h 55m
1 stop
STL1:25 pmLambert-St Louis
May 4
STL3:20 pmLambert-St Louis
15h 50m
2 stops
FLR2:10 pmFlorence Peretola
$942
United Airlines
May 1
FLR6:30 amFlorence Peretola
13h 55m
1 stop
STL1:25 pmLambert-St Louis
May 4
STL7:09 pmLambert-St Louis
14h 26m
2 stops
FLR4:35 pmFlorence Peretola
$946
United Airlines
May 1
FLR6:30 amFlorence Peretola
18h 42m
2 stops
STL6:12 pmLambert-St Louis
May 4
STL3:20 pmLambert-St Louis
15h 50m
2 stops
FLR2:10 pmFlorence Peretola
$948

momondo Fare Finder

 
Customize your flight search to find flights from Florence to St. Louis 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 April 19, 2026.
Use the filters below to find and compare flights from Florence to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Fri 5/1

6:30 am-1:25 pm

1 stop13h 55m

Lambert-St Louis

Mon 5/4

3:20 pm-2:10 pm

2 stops15h 50m

$936

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Fri 5/1

6:30 am-6:53 pm

2 stops19h 23m

Lambert-St Louis

Mon 5/4

3:20 pm-2:10 pm

2 stops15h 50m

$942

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Fri 5/1

6:30 am-1:25 pm

1 stop13h 55m

Lambert-St Louis

Mon 5/4

7:09 pm-4:35 pm

2 stops14h 26m

$946

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Fri 5/1

6:30 am-6:12 pm

2 stops18h 42m

Lambert-St Louis

Mon 5/4

3:20 pm-2:10 pm

2 stops15h 50m

$948

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Fri 5/1

6:30 am-6:53 pm

2 stops19h 23m

Lambert-St Louis

Mon 5/4

3:20 pm-12:40 pm

2 stops14h 20m

$952
Quickest round-trip

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Fri 5/1

6:30 am-1:25 pm

1 stop13h 55m

Lambert-St Louis

Mon 5/4

3:20 pm-12:40 pm

2 stops14h 20m

$1,041

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Fri 5/1

10:45 am-7:51 pm

2 stops16h 06m

Lambert-St Louis

Mon 5/4

3:20 pm-12:40 pm

2 stops14h 20m

$1,055

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Sat 5/30

7:10 pm-3:46 pm

2 stops27h 36m

Lambert-St Louis

Sat 6/6

8:35 am-6:30 pm

2 stops26h 55m

$1,189

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Sat 5/30

7:10 pm-1:25 pm

1 stop25h 15m

Lambert-St Louis

Sat 6/6

8:35 am-6:30 pm

2 stops26h 55m

$1,528

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Sat 5/30

7:30 pm-7:30 pm

2 stops31h 00m

Lambert-St Louis

Sat 6/6

8:40 am-11:05 pm

3 stops31h 25m

$1,658

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Florence to St. Louis

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

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

You could potentially save up to 35% on your flight if you consider stops on a Florence to St. Louis flight.

When to book flights from Florence to St. Louis

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

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

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

Fastest flight time

13h 55m

Direct flights

None
The fastest flight from Florence to St. Louis takes 13h 55m
There are no direct flights from Florence to St. Louis. There are no popular flight routes from Florence to St. Louis.
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Frequently asked questions about flying from Florence to St. Louis

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

    The distance between Florence Peretola and Lambert-St Louis is about 4926.2 mi. By plane, this route typically takes 13h 55m.

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

    Prices for flights from Florence Peretola Airport to Lambert-St Louis Airport refresh daily.

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

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Florence to St. Louis for you.

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

Yes. momondo allows you to filter the results for Florence to St. Louis flights to just show those with flexible booking policies.

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

Once all potential Florence to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to St. Louis from Florence. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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