Which layover airport has the shortest connection time from St. Louis to Rome?

Charlotte (CLT) has the shortest average layover time for this route: 2h 12m.

Which airport is the most popular layover for flights between St. Louis and Rome?

Montreal (YUL) was the most common stop: 58% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Lambert-St Louis to Rome?

Lufthansa and United Airlines are the most popular carriers operating from Lambert-St Louis to Rome

Which layover airport has the shortest travel time from St. Louis to Rome?

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 11h 55m.

Which layover airport offers the lowest fares from St. Louis to Rome?

Flights via Charlotte (CLT) offer the lowest average round-trip price of $825.

What airlines fly to Rome?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Rome from St. Louis according to our data. American Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Rome. Keep in mind that there are 7 different airlines that fly to Rome on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Lambert-St Louis Airport to Rome were last updated today.

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

As of August 2026, there are 7 operators available to choose from for flights from Lambert-St Louis Airport to Rome.

How old do you have to be to fly from Lambert-St Louis Airport to Rome?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Rome.

What documentation or ID do you need to fly to Rome?

The necessary travel and health documents for your Rome trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$222 Cheap Flights from St. Louis to Rome in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Rome

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6:50 pm - 6:00 pmSTL Lambert-St Louis-FCO Rome Fiumicino

16h 10m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:05 am - 1:45 pmFCO Rome Fiumicino-STL Lambert-St Louis

13h 40m1 stop Frankfurt am Main

$754Lufthansa

Sun, Nov 8 - Wed, Nov 18

6:50 pm - 6:00 pmSTL Lambert-St Louis-FCO Rome Fiumicino

16h 10m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

1:15 pm - 2:30 pmFCO Rome Fiumicino-STL Lambert-St Louis

32h 15m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$754Multiple Airlines

Wed, Nov 25 - Wed, Dec 9

3:40 pm - 12:40 pmSTL Lambert-St Louis-FCO Rome Fiumicino

14h 00m1 stop Frankfurt am Main

11:15 am - 3:26 pmFCO Rome Fiumicino-STL Lambert-St Louis

35h 11m1 stop Toronto Pearson Intl

$756Multiple Airlines

Sun, Nov 8 - Tue, Nov 17

6:50 pm - 6:00 pmSTL Lambert-St Louis-FCO Rome Fiumicino

16h 10m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

9:55 am - 9:52 pmFCO Rome Fiumicino-STL Lambert-St Louis

18h 57m2 stops Frankfurt am Main Newark

$761Lufthansa

Sun, Nov 8 - Wed, Nov 18

5:31 pm - 4:55 pmSTL Lambert-St Louis-FCO Rome Fiumicino

16h 24m2 stops Chicago O'Hare Intl London Heathrow

1:00 pm - 8:21 pmFCO Rome Fiumicino-STL Lambert-St Louis

14h 21m1 stop Philadelphia

$764British Airways

Wed, Nov 25 - Wed, Dec 9

10:21 am - 10:45 amSTL Lambert-St Louis-FCO Rome Fiumicino

17h 24m1 stop Dallas/Fort Worth

1:00 pm - 8:21 pmFCO Rome Fiumicino-STL Lambert-St Louis

14h 21m1 stop Philadelphia

$766British Airways

Wed, Nov 25 - Wed, Dec 9

6:30 am - 8:55 amSTL Lambert-St Louis-FCO Rome Fiumicino

19h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl

1:15 pm - 3:41 pmFCO Rome Fiumicino-STL Lambert-St Louis

33h 26m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$769United Airlines

Wed, Jan 13 - Fri, Jan 22

6:30 am - 7:55 amSTL Lambert-St Louis-FCO Rome Fiumicino

18h 25m1 stop Newark

1:15 pm - 2:30 pmFCO Rome Fiumicino-STL Lambert-St Louis

32h 15m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$770United Airlines

Mon, Jan 11 - Fri, Jan 22

7:04 pm - 8:55 amSTL Lambert-St Louis-FCO Rome Fiumicino

30h 51m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

1:15 pm - 2:30 pmFCO Rome Fiumicino-STL Lambert-St Louis

32h 15m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$773Air Canada

Tue, Jan 12 - Wed, Jan 20

4:05 pm - 10:55 amSTL Lambert-St Louis-FCO Rome Fiumicino

11h 50m1 stop Toronto Pearson Intl

1:15 pm - 4:56 pmFCO Rome Fiumicino-STL Lambert-St Louis

34h 41m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$774Air Canada

Tue, Nov 10 - Fri, Dec 11

Cheap last minute flights

Enter your travel dates to find the best prices.

12:10 pm - 9:15 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 05m1 stop Montreal Pierre Elliott Trudeau Intl

1:20 pm - 6:42 pmFCO Rome Fiumicino-STL Lambert-St Louis

36h 22m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$930United Airlines

Mon, Aug 17 - Mon, Aug 24

3:30 pm - 8:10 pmSTL Lambert-St Louis-FCO Rome Fiumicino

21h 40m2 stops Frankfurt am Main Luqa Malta Intl

9:00 pm - 6:42 pmFCO Rome Fiumicino-STL Lambert-St Louis

28h 42m3 stops Luqa Malta Intl Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$932Multiple Airlines

Mon, Aug 17 - Mon, Aug 24

12:59 pm - 10:00 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 01m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:35 pm - 5:06 pmFCO Rome Fiumicino-STL Lambert-St Louis

29h 31m2 stops Frankfurt am Main Chicago O'Hare Intl

$934Lufthansa

Mon, Aug 17 - Mon, Aug 24

12:59 pm - 10:00 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 01m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

2:55 pm - 5:06 pmFCO Rome Fiumicino-STL Lambert-St Louis

33h 11m2 stops Frankfurt am Main Chicago O'Hare Intl

$934Lufthansa

Mon, Aug 17 - Mon, Aug 24

12:10 pm - 9:15 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 05m1 stop Montreal Pierre Elliott Trudeau Intl

6:50 am - 1:25 pmFCO Rome Fiumicino-STL Lambert-St Louis

13h 35m1 stop Frankfurt am Main

$936Multiple Airlines

Mon, Aug 17 - Mon, Aug 24

12:10 pm - 8:10 pmSTL Lambert-St Louis-FCO Rome Fiumicino

25h 00m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Luqa Malta Intl

9:00 pm - 6:42 pmFCO Rome Fiumicino-STL Lambert-St Louis

28h 42m3 stops Luqa Malta Intl Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$950Multiple Airlines

Mon, Aug 17 - Mon, Aug 24

12:10 pm - 9:15 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 05m1 stop Montreal Pierre Elliott Trudeau Intl

6:50 am - 1:25 pmFCO Rome Fiumicino-STL Lambert-St Louis

13h 35m1 stop Frankfurt am Main

$957Multiple Airlines

Mon, Aug 17 - Mon, Aug 24

12:10 pm - 9:15 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 05m1 stop Montreal Pierre Elliott Trudeau Intl

2:20 pm - 11:38 pmFCO Rome Fiumicino-STL Lambert-St Louis

40h 18m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$1,248United Airlines

Fri, Aug 14 - Sun, Aug 16

8:00 am - 8:15 amSTL Lambert-St Louis-FCO Rome Fiumicino

17h 15m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

10:20 am - 7:16 pmFCO Rome Fiumicino-STL Lambert-St Louis

15h 56m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$1,274United Airlines

Fri, Aug 14 - Sun, Aug 16

1:25 pm - 2:20 pmSTL Lambert-St Louis-FCO Rome Fiumicino

17h 55m2 stops Chicago O'Hare Intl London Heathrow

8:15 pm - 5:34 pmFCO Rome Fiumicino-STL Lambert-St Louis

28h 19m2 stops London Heathrow Charlotte Douglas

$11,719British Airways

Thu, Aug 13 - Sat, Aug 15

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Delta flights from St. Louis to Rome

Our best Delta deals on St. Louis to Rome flight tickets

Delta

Nov 9

STL6:00 amLambert-St Louis

19h 15m

1 stop

FCO8:15 amRome Fiumicino

Nov 18

FCO10:00 amRome Fiumicino

17h 51m

1 stop

STL8:51 pmLambert-St Louis

$790

Delta

Nov 14

STL2:00 pmLambert-St Louis

21h 25m

2 stops

FCO6:25 pmRome Fiumicino

Dec 9

FCO10:00 amRome Fiumicino

14h 00m

1 stop

STL5:00 pmLambert-St Louis

$794

Delta

Aug 18

STL11:00 amLambert-St Louis

17h 00m

2 stops

FCO11:00 amRome Fiumicino

Aug 23

FCO6:30 amRome Fiumicino

16h 47m

2 stops

STL4:17 pmLambert-St Louis

$974

United Airlines flights from St. Louis to Rome

Our best United Airlines deals on St. Louis to Rome flight tickets

United Airlines

Jan 11

STL11:45 amLambert-St Louis

13h 10m

1 stop

FCO7:55 amRome Fiumicino

Jan 20

FCO1:15 pmRome Fiumicino

29h 51m

2 stops

STL12:06 pmLambert-St Louis

$770

United Airlines

Jan 31

STL6:30 amLambert-St Louis

19h 25m

2 stops

FCO8:55 amRome Fiumicino

Feb 4

FCO11:15 amRome Fiumicino

34h 15m

2 stops

STL2:30 pmLambert-St Louis

$774

United Airlines

Nov 9

STL7:30 amLambert-St Louis

17h 15m

1 stop

FCO7:45 amRome Fiumicino

Nov 17

FCO11:15 amRome Fiumicino

31h 55m

2 stops

STL12:10 pmLambert-St Louis

$775

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 11/8

6:50 pm-6:00 pm

2 stops16h 10m

Rome Fiumicino

Wed 11/18

7:05 am-1:45 pm

1 stop13h 40m

$754

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Wed 11/25

6:50 pm-6:00 pm

2 stops16h 10m

Rome Fiumicino

Wed 12/9

1:15 pm-2:30 pm

2 stops32h 15m

$754

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 11/8

3:40 pm-12:40 pm

1 stop14h 00m

Rome Fiumicino

Tue 11/17

11:15 am-3:26 pm

1 stop35h 11m

$756

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 11/8

6:50 pm-6:00 pm

2 stops16h 10m

Rome Fiumicino

Wed 11/18

9:55 am-9:52 pm

2 stops18h 57m

$761

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Wed 11/25

5:31 pm-4:55 pm

2 stops16h 24m

Rome Fiumicino

Wed 12/9

1:00 pm-8:21 pm

1 stop14h 21m

$764

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Wed 11/25

10:21 am-10:45 am

1 stop17h 24m

Rome Fiumicino

Wed 12/9

1:00 pm-8:21 pm

1 stop14h 21m

$766

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Wed 1/13

6:30 am-8:55 am

2 stops19h 25m

Rome Fiumicino

Fri 1/22

1:15 pm-3:41 pm

2 stops33h 26m

$769

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 1/11

6:30 am-7:55 am

1 stop18h 25m

Rome Fiumicino

Fri 1/22

1:15 pm-2:30 pm

2 stops32h 15m

$770

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Tue 1/12

7:04 pm-8:55 am

2 stops30h 51m

Rome Fiumicino

Wed 1/20

1:15 pm-2:30 pm

2 stops32h 15m

$773

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Tue 11/10

4:05 pm-10:55 am

1 stop11h 50m

Rome Fiumicino

Fri 12/11

1:15 pm-4:56 pm

2 stops34h 41m

$774

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Layovers

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

Prices are currently typical for flights on this route.

Typical prices usually range from $753 to $1,124.
The lowest price recently found on this route was $754.

What is the cheapest month to fly to Rome?

The cheapest month to fly to Rome from St. Louis is in February. Flight prices, which tend to average around $527, are often lower during this time because this is during the off-season. If you aren’t able to travel to Rome during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $674.

How far in advance should I book a flight from St. Louis to Rome?

You are more likely to see cheaper flights to Rome from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Rome for around $992 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rome from St. Louis for as low as $729 on momondo.

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

You could potentially save up to 18% on your flight if you consider stops on a St. Louis to Rome flight.

How have St. Louis to Rome flight prices changed over time?

When to book flights from St. Louis to Rome

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

Estimated round-trip price

Cheap St. Louis to Rome (STL to ROM) flight deals and tips

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

Fastest flight time	11h 50m
Direct flights	None

The fastest flight from St. Louis to Rome takes 11h 50m

There are no direct flights from St. Louis to Rome. There are no popular flight routes from St. Louis to Rome.

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Frequently asked questions about flying from St. Louis to Rome

How far is Lambert-St Louis to Rome by plane?
A flight from Lambert-St Louis to Rome will travel around 5053.3 mi. Typically, this will take 11h 50m by plane in normal conditions.
When did momondo last update prices for flights from Lambert-St Louis Airport to Rome?
Prices for flights from Lambert-St Louis Airport to Rome were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Rome?
As of August 2026, there are 7 operators available to choose from for flights from Lambert-St Louis Airport to Rome.
How old do you have to be to fly from Lambert-St Louis Airport to Rome?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Rome.
What documentation or ID do you need to fly to Rome?
The necessary travel and health documents for your Rome trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Rome?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Rome is United Airlines (32% of total bookings). The next most popular airlines are British Airways (17%), Air Canada (16%), and Delta (13%).

Best airlines flying from St. Louis to Rome

Compare and see reviews for airlines that fly from St. Louis to Rome with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $472	Free Cancellation	Rating 6.7 8,159 reviews	Search British Airways flights
Lufthansa	PriceFrom $500	Free Cancellation	Rating 6.8 8,179 reviews	Search Lufthansa flights
KLM	PriceFrom $506	Free Cancellation	Rating 7.8 1,557 reviews	Search KLM flights
United Airlines	PriceFrom $618	Free Cancellation	Rating 7.4 10,111 reviews	Search United Airlines flights
Delta	PriceFrom $665	Free Cancellation	Rating 7.8 8,505 reviews	Search Delta flights
American Airlines	PriceFrom $778	Free Cancellation	Rating 7.1 11,911 reviews	Search American Airlines flights
Air Canada	PriceFrom $810	Free Cancellation	Rating 7.1 11,462 reviews	Search Air Canada flights

Fiumicino

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Gaeta

Orvieto

Montepulciano

Ladispoli

Pienza

Tivoli

Sperlonga

Chianciano Terme

Orbetello

Ponza

Ciampino

Terracina

Cassino

Porto Ercole

Saturnia

Ascoli Piceno

Foligno

Santa Marinella

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Rome from St. Louis with this policy.

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

Once all potential St. Louis to Rome 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 St. Louis to Rome right now. Can momondo alert me if prices change?

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

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Cheap flights from St. Louis to Rome from $222

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 Rome departing on 10/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from St. Louis to Rome

Our best Delta deals on St. Louis to Rome flight tickets

United Airlines flights from St. Louis to Rome

Our best United Airlines deals on St. Louis to Rome flight tickets

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

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

What is the cheapest month to fly to Rome?

How far in advance should I book a flight from St. Louis to Rome?

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

How have St. Louis to Rome flight prices changed over time?

What is the cheapest airline that flies from Lambert-St Louis to Rome?

What airlines fly to Rome?

Which airport is the most popular layover for flights between St. Louis and Rome?

Which layover airport offers the lowest fares from St. Louis to Rome?

Which layover airport has the shortest travel time from St. Louis to Rome?

Which layover airport has the shortest connection time from St. Louis to Rome?

When to book flights from St. Louis to Rome

Cheap St. Louis to Rome (STL to ROM) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Rome

Best airlines flying from St. Louis to Rome

Compare and see reviews for airlines that fly from St. Louis to Rome with momondo

Traveling to a place near Rome?

Why use momondo?

An easier way to manage your Rome 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Italy

Fly into one of these airports located in Rome

Airports listed have a maximum distance of 14.7 mi from Rome

Fly your favorite airline to Rome

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Cabin classes currently available on flights to Rome

List of cabin classes available on flights landing in Rome. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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