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 34% 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.

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

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

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

Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $720.

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 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: 50% of momondo users choosing 1-stop flights on this route connected there.

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 July 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.

$148 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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:55 am - 10:25 am

STL

FCO

18h 30m

2 stops

7:30 am - 8:24 pm

FCO

STL

19h 54m

2 stops

$461Aer Lingus

Wed, Aug 19 - Wed, Aug 26

8:55 am - 10:25 am

STL

FCO

18h 30m

2 stops

7:30 am - 8:24 pm

FCO

STL

19h 54m

2 stops

$567Aer Lingus

Wed, Aug 19 - Wed, Aug 26

6:50 pm - 6:15 pm

STL

FCO

16h 25m

2 stops

7:05 am - 1:45 pm

FCO

STL

13h 40m

1 stop

$765Lufthansa

Sun, Nov 8 - Wed, Nov 18

6:50 pm - 6:15 pm

STL

FCO

16h 25m

2 stops

9:55 am - 9:52 pm

FCO

STL

18h 57m

2 stops

$772Lufthansa

Sun, Nov 8 - Wed, Nov 18

1:08 pm - 7:45 am

STL

FCO

11h 37m

1 stop

1:15 pm - 2:30 pm

FCO

STL

32h 15m

2 stops

$774United Airlines

Sun, Nov 8 - Wed, Nov 18

9:44 am - 7:55 am

STL

FCO

15h 11m

1 stop

1:15 pm - 12:10 pm

FCO

STL

29h 55m

2 stops

$774United Airlines

Mon, Nov 9 - Wed, Nov 18

7:30 am - 8:55 am

STL

FCO

18h 25m

2 stops

1:15 pm - 3:43 pm

FCO

STL

33h 28m

2 stops

$778Air Canada

Sun, Nov 8 - Wed, Nov 18

4:05 pm - 8:55 am

STL

FCO

57h 50m

2 stops

1:15 pm - 3:43 pm

FCO

STL

33h 28m

2 stops

$781Air Canada

Mon, Nov 9 - Wed, Nov 18

3:20 pm - 10:15 am

STL

FCO

11h 55m

1 stop

10:25 am - 6:01 pm

FCO

STL

14h 36m

1 stop

$795Delta

Tue, Nov 10 - Tue, Jan 12

11:51 am - 11:20 am

STL

FCO

16h 29m

1 stop

1:30 pm - 11:39 pm

FCO

STL

17h 09m

1 stop

$795Delta

Tue, Nov 10 - Tue, Jan 12

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Lufthansa flights from St. Louis to Rome

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

Lufthansa

Aug 31

STL6:54 pmLambert-St Louis

15h 56m

2 stops

FCO5:50 pmRome Fiumicino

Sep 23

FCO6:50 amRome Fiumicino

23h 48m

2 stops

STL11:38 pmLambert-St Louis

$907

Lufthansa

Oct 13

STL12:20 pmLambert-St Louis

17h 10m

2 stops

FCO12:30 pmRome Fiumicino

Oct 28

FCO6:55 amRome Fiumicino

22h 20m

2 stops

STL11:15 pmLambert-St Louis

$916

Lufthansa

Sep 9

STL3:30 pmLambert-St Louis

14h 00m

1 stop

FCO12:30 pmRome Fiumicino

Sep 22

FCO6:50 amRome Fiumicino

13h 35m

1 stop

STL1:25 pmLambert-St Louis

$937

Delta flights from St. Louis to Rome

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

Delta

Aug 24

STL2:10 pmLambert-St Louis

17h 15m

2 stops

FCO2:25 pmRome Fiumicino

Sep 8

FCO6:30 amRome Fiumicino

21h 05m

2 stops

STL8:35 pmLambert-St Louis

$910

Delta

Oct 13

STL6:05 pmLambert-St Louis

16h 25m

2 stops

FCO5:30 pmRome Fiumicino

Oct 28

FCO6:10 amRome Fiumicino

23h 44m

2 stops

STL11:54 pmLambert-St Louis

$913

Delta

Aug 11

STL5:34 pmLambert-St Louis

12h 06m

1 stop

FCO12:40 pmRome Fiumicino

Aug 19

FCO6:30 amRome Fiumicino

15h 40m

2 stops

STL3:10 pmLambert-St Louis

$924

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 8/19

8:55 am-10:25 am

2 stops18h 30m

Rome Fiumicino

Wed 8/26

7:30 am-8:24 pm

2 stops19h 54m

$461

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 8/19

8:55 am-10:25 am

2 stops18h 30m

Rome Fiumicino

Wed 8/26

7:30 am-8:24 pm

2 stops19h 54m

$567

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 11/8

6:50 pm-6:15 pm

2 stops16h 25m

Rome Fiumicino

Wed 11/18

7:05 am-1:45 pm

1 stop13h 40m

$765

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 11/8

6:50 pm-6:15 pm

2 stops16h 25m

Rome Fiumicino

Wed 11/18

9:55 am-9:52 pm

2 stops18h 57m

$772

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 11/8

1:08 pm-7:45 am

1 stop11h 37m

Rome Fiumicino

Wed 11/18

1:15 pm-2:30 pm

2 stops32h 15m

$774

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 11/9

9:44 am-7:55 am

1 stop15h 11m

Rome Fiumicino

Wed 11/18

1:15 pm-12:10 pm

2 stops29h 55m

$774

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 11/8

7:30 am-8:55 am

2 stops18h 25m

Rome Fiumicino

Wed 11/18

1:15 pm-3:43 pm

2 stops33h 28m

$778

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 11/9

4:05 pm-8:55 am

2 stops57h 50m

Rome Fiumicino

Wed 11/18

1:15 pm-3:43 pm

2 stops33h 28m

$781

Quickest round-trip

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 11/10

3:20 pm-10:15 am

1 stop11h 55m

Rome Fiumicino

Tue 1/12

10:25 am-6:01 pm

1 stop14h 36m

$795

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 11/10

11:51 am-11:20 am

1 stop16h 29m

Rome Fiumicino

Tue 1/12

1:30 pm-11:39 pm

1 stop17h 09m

$795

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 $566 to $1,075.
The lowest price recently found on this route was $567.

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 November is also cheap. Prices for this month can be found on momondo for an average of $706.

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 $984 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 13% 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	12h 30m
Direct flights	None

The fastest flight from St. Louis to Rome takes 12h 30m

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 12h 30m 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 July 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 (33% of total bookings). The next most popular airlines are Air Canada (16%), British Airways (16%), and Delta (14%).

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 8,131 reviews	Search British Airways flights
Lufthansa	PriceFrom $500	Free Cancellation	Rating 6.8 8,163 reviews	Search Lufthansa flights
KLM	PriceFrom $506	Free Cancellation	Rating 7.8 1,550 reviews	Search KLM flights
United Airlines	PriceFrom $549	Free Cancellation	Rating 7.4 10,052 reviews	Search United Airlines flights
Delta	PriceFrom $587	Free Cancellation	Rating 7.8 8,487 reviews	Search Delta flights
American Airlines	PriceFrom $665	Free Cancellation	Rating 7.1 11,839 reviews	Search American Airlines flights
Air Canada	PriceFrom $810	Free Cancellation	Rating 7.1 11,404 reviews	Search Air Canada flights

Fiumicino

Civitavecchia

Gaeta

Orvieto

Montepulciano

Ladispoli

Pienza

Tivoli

Chianciano Terme

Ponza

Sperlonga

Orbetello

Ciampino

Terracina

Cassino

Saturnia

Ascoli Piceno

Porto Ercole

Santa Marinella

Spoleto

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 $148

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 9/28. 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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Lufthansa flights from St. Louis to Rome

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

Delta flights from St. Louis to Rome

Our best Delta 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.

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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

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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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