What airlines fly to Rome Fiumicino Airport?

American Airlines, United Airlines and Lufthansa are the top three most popular airlines that fly to Rome Fiumicino Airport from St. Louis according to our data. American Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Rome Fiumicino Airport. Keep in mind that there are 7 different airlines that fly to Rome Fiumicino Airport on a routine basis, so you have a few additional options to choose from.

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

Philadelphia (PHL) has the shortest average layover time for this route: 1h 15m.

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

Montreal (YUL) was the most common stop: 36% 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 Fiumicino?

British Airways, United Airlines, and KLM are the most popular carriers operating from Lambert-St Louis to Rome Fiumicino

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

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $698.

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

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 11h 13m.

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

Prices for flights from Lambert-St Louis Airport to Rome Fiumicino Airport are refreshed on a daily basis.

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

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

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

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

The travel and health documents you'll need for your trip to Rome Fiumicino 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 Rome Fiumicino Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$349 Cheap Flights from St. Louis to Rome Fiumicino Airport in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $1,030 to $826. The lowest price recently found on this route was $728.

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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.

1:30 pm - 8:40 am

STL

FCO

36h 10m

2 stops

9:40 am - 11:37 pm

FCO

STL

20h 57m

2 stops

$728Scandinavian Airlines

Fri, Sep 11 - Fri, Sep 25

10:14 am - 12:05 pm

STL

FCO

18h 51m

1 stop

1:10 pm - 10:00 pm

FCO

STL

15h 50m

1 stop

$791Iberia

Wed, Aug 5 - Wed, Aug 19

6:42 am - 12:05 pm

STL

FCO

22h 23m

1 stop

1:30 pm - 10:40 pm

FCO

STL

16h 10m

1 stop

$803British Airways

Wed, Aug 5 - Wed, Aug 19

10:14 am - 12:05 pm

STL

FCO

18h 51m

1 stop

8:25 pm - 11:41 pm

FCO

STL

34h 16m

2 stops

$806Iberia

Wed, Aug 5 - Wed, Aug 19

12:10 pm - 9:15 am

STL

FCO

14h 05m

1 stop

2:20 pm - 2:02 pm

FCO

STL

30h 42m

2 stops

$825Air Canada

Wed, Aug 5 - Wed, Aug 19

9:23 am - 9:15 am

STL

FCO

16h 52m

2 stops

2:20 pm - 2:02 pm

FCO

STL

30h 42m

2 stops

$830Air Canada

Wed, Aug 5 - Wed, Aug 19

8:43 am - 9:15 am

STL

FCO

17h 32m

2 stops

11:30 am - 8:37 am

FCO

STL

28h 07m

2 stops

$832United Airlines

Wed, Aug 5 - Wed, Aug 19

3:42 pm - 11:05 am

STL

FCO

36h 23m

2 stops

7:25 pm - 11:37 pm

FCO

STL

35h 12m

2 stops

$848Scandinavian Airlines

Thu, Aug 27 - Sat, Sep 12

1:09 pm - 9:10 am

STL

FCO

13h 01m

1 stop

8:20 pm - 7:30 pm

FCO

STL

30h 10m

1 stop

$863British Airways

Wed, Jul 22 - Mon, Aug 24

10:14 am - 12:05 pm

STL

FCO

18h 51m

1 stop

11:45 am - 11:59 pm

FCO

STL

19h 14m

2 stops

$865Multiple Airlines

Mon, Aug 24 - Fri, Dec 11

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Iberia flights from St. Louis to Rome Fiumicino Airport

Our best Iberia deals on St. Louis to Rome Fiumicino Airport flight tickets

Iberia

Aug 5

STL10:14 amLambert-St Louis

18h 51m

1 stop

FCO12:05 pmRome Fiumicino

Aug 19

FCO1:10 pmRome Fiumicino

15h 50m

1 stop

STL10:00 pmLambert-St Louis

$791

Iberia

Aug 5

STL10:14 amLambert-St Louis

18h 51m

1 stop

FCO12:05 pmRome Fiumicino

Aug 19

FCO8:25 pmRome Fiumicino

34h 16m

2 stops

STL11:41 pmLambert-St Louis

$806

Iberia

Sep 29

STL9:46 amLambert-St Louis

18h 24m

2 stops

FCO11:10 amRome Fiumicino

Oct 13

FCO7:35 amRome Fiumicino

19h 33m

2 stops

STL8:08 pmLambert-St Louis

$936

Turkish Airlines flights from St. Louis to Rome Fiumicino Airport

Our best Turkish Airlines deals on St. Louis to Rome Fiumicino Airport flight tickets

Turkish Airlines

Apr 25

STL7:45 amLambert-St Louis

27h 40m

2 stops

FCO6:25 pmRome Fiumicino

Apr 28

FCO7:05 amRome Fiumicino

45h 08m

2 stops

STL9:13 pmLambert-St Louis

$926

Turkish Airlines

Apr 17

STL7:45 amLambert-St Louis

27h 40m

2 stops

FCO6:25 pmRome Fiumicino

Apr 19

FCO10:45 amRome Fiumicino

41h 28m

2 stops

STL9:13 pmLambert-St Louis

$1,191

Turkish Airlines

Apr 19

STL7:45 amLambert-St Louis

27h 40m

2 stops

FCO6:25 pmRome Fiumicino

Apr 25

FCO8:00 pmRome Fiumicino

32h 13m

2 stops

STL9:13 pmLambert-St Louis

$7,468

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Rome Fiumicino Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Fri 9/11

1:30 pm-8:40 am

2 stops36h 10m

Rome Fiumicino

Fri 9/25

9:40 am-11:37 pm

2 stops20h 57m

$728

Quickest round-trip

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 8/5

10:14 am-12:05 pm

1 stop18h 51m

Rome Fiumicino

Wed 8/19

1:10 pm-10:00 pm

1 stop15h 50m

$791

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 8/5

6:42 am-12:05 pm

1 stop22h 23m

Rome Fiumicino

Wed 8/19

1:30 pm-10:40 pm

1 stop16h 10m

$803

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 8/5

10:14 am-12:05 pm

1 stop18h 51m

Rome Fiumicino

Wed 8/19

8:25 pm-11:41 pm

2 stops34h 16m

$806

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 8/5

12:10 pm-9:15 am

1 stop14h 05m

Rome Fiumicino

Wed 8/19

2:20 pm-2:02 pm

2 stops30h 42m

$825

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 8/5

9:23 am-9:15 am

2 stops16h 52m

Rome Fiumicino

Wed 8/19

2:20 pm-2:02 pm

2 stops30h 42m

$830

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 8/5

8:43 am-9:15 am

2 stops17h 32m

Rome Fiumicino

Wed 8/19

11:30 am-8:37 am

2 stops28h 07m

$832

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Thu 8/27

3:42 pm-11:05 am

2 stops36h 23m

Rome Fiumicino

Sat 9/12

7:25 pm-11:37 pm

2 stops35h 12m

$848

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 7/22

1:09 pm-9:10 am

1 stop13h 01m

Rome Fiumicino

Mon 8/24

8:20 pm-7:30 pm

1 stop30h 10m

$863

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 8/24

10:14 am-12:05 pm

1 stop18h 51m

Rome Fiumicino

Fri 12/11

11:45 am-11:59 pm

2 stops19h 14m

$865

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 Fiumicino Airport

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 Fiumicino Airport?

What is the cheapest month to fly to Rome Fiumicino Airport?

The cheapest month to fly to Rome Fiumicino Airport from St. Louis is in February. Flight prices, which tend to average around $544, are often lower during this time because this is during the off-season. If you aren’t able to travel to Rome Fiumicino Airport 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 $643.

How far in advance should I book a flight to Rome Fiumicino Airport?

You are more likely to see cheaper flights to Rome Fiumicino Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Rome Fiumicino Airport for around $927 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rome Fiumicino Airport from St. Louis for as low as $754 on momondo.

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

You could potentially save up to 7% on your flight if you consider stops on a St. Louis to Rome Fiumicino Airport flight.

When to book flights from St. Louis to Rome Fiumicino Airport

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

Estimated round-trip price

Cheap St. Louis to Rome Fiumicino Airport (STL to FCO) flight deals and tips

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

Fastest flight time	11h 55m
Direct flights	None

The fastest flight from St. Louis to Rome Fiumicino Airport takes 11h 55m

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

Search flight deals

Frequently asked questions about flying from St. Louis to Rome Fiumicino Airport

How far is Lambert-St Louis to Rome Fiumicino by plane?
A flight from Lambert-St Louis to Rome Fiumicino will travel around 5048.2 mi. 11h 55m is a normal flight duration for this route.
When did momondo last update prices for flights from Lambert-St Louis Airport to Rome Fiumicino Airport?
Prices for flights from Lambert-St Louis Airport to Rome Fiumicino Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Rome Fiumicino Airport?
As of April 2026, there are 7 operators available to choose from for flights from Lambert-St Louis Airport to Rome Fiumicino Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Rome Fiumicino 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 Rome Fiumicino Airport.
What documentation or ID do you need to fly to Rome Fiumicino Airport?
The travel and health documents you'll need for your trip to Rome Fiumicino 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 Rome Fiumicino 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 Rome Fiumicino Airport?
Based on momondo bookings for flights between St. Louis and Rome Fiumicino Airport, the leading airline is American Airlines, making up 33% of the total bookings. Other popular airlines include United Airlines with 21%, Lufthansa with 11%, and Air Canada with 11%.

Best airlines flying from St. Louis to Rome Fiumicino Airport

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $472	Free Cancellation	Rating 6.7 7,885 reviews	Search British Airways flights
Lufthansa	PriceFrom $500	Free Cancellation	Rating 6.8 7,926 reviews	Search Lufthansa flights
KLM	PriceFrom $506	Free Cancellation	Rating 7.8 1,499 reviews	Search KLM flights
United Airlines	PriceFrom $543	Free Cancellation	Rating 7.4 9,589 reviews	Search United Airlines flights
Delta	PriceFrom $555	Free Cancellation	Rating 7.9 8,406 reviews	Search Delta flights
Air Canada	PriceFrom $564	Free Cancellation	Rating 7.1 10,928 reviews	Search Air Canada flights
American Airlines	PriceFrom $665	Free Cancellation	Rating 7.1 11,581 reviews	Search American Airlines flights

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Cassino

Gaeta

Ponza

Montepulciano

Orvieto

Chianciano Terme

Pienza

Sperlonga

Terracina

Tivoli

Ladispoli

Santa Marinella

Ciampino

Saturnia

Grosseto

Orbetello

Vatican

Ascoli Piceno

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

Finding the right flight to Rome from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Rome quick and easy, saving you time and money.

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

Flights from St. Louis to Rome with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for St. Louis to Rome 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 Rome right now. Can momondo alert me if prices change?

Price alerts on flights to Rome from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from St. Louis to Rome from $349

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 8/16. 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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Iberia flights from St. Louis to Rome Fiumicino Airport

Our best Iberia deals on St. Louis to Rome Fiumicino Airport flight tickets

Turkish Airlines flights from St. Louis to Rome Fiumicino Airport

Our best Turkish Airlines deals on St. Louis to Rome Fiumicino Airport flight tickets

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

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

What is the cheapest month to fly to Rome Fiumicino Airport?

How far in advance should I book a flight to Rome Fiumicino Airport?

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

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

What airlines fly to Rome Fiumicino Airport?

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

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

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

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

When to book flights from St. Louis to Rome Fiumicino Airport

Cheap St. Louis to Rome Fiumicino Airport (STL to FCO) flight deals and tips

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

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Rome Fiumicino Airport

Best airlines flying from St. Louis to Rome Fiumicino Airport

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

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