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.

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 airlines fly to Rome?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Rome from St. Louis according to our data. United Airlines is the first choice among our users, with 32% 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.

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.

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

British Airways, Lufthansa, and Aer Lingus are the most popular carriers operating from Lambert-St Louis to Rome

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 September 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.

$329 Cheap Flights from St. Louis to Rome in 2026/27

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.

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

17h 25m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

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

35h 11m1 stop Toronto Pearson Intl

$565Air Canada

Sun, Nov 8 - Tue, Nov 24

9:59 am - 7:55 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 56m1 stop Newark

1:15 pm - 2:34 pmFCO Rome Fiumicino-STL Lambert-St Louis

32h 19m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$576United Airlines

Wed, Nov 18 - Fri, Nov 27

8:30 am - 7:45 amSTL Lambert-St Louis-FCO Rome Fiumicino

16h 15m1 stop Chicago O'Hare Intl

1:15 pm - 10:32 amFCO Rome Fiumicino-STL Lambert-St Louis

28h 17m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$576United Airlines

Sun, Nov 15 - Wed, Nov 25

4:05 pm - 8:55 amSTL Lambert-St Louis-FCO Rome Fiumicino

33h 50m1 stop Toronto Pearson Intl

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

35h 11m1 stop Toronto Pearson Intl

$576Multiple Airlines

Sun, Nov 8 - Tue, Nov 24

4:05 pm - 8:55 amSTL Lambert-St Louis-FCO Rome Fiumicino

33h 50m1 stop Toronto Pearson Intl

1:15 pm - 12:10 pmFCO Rome Fiumicino-STL Lambert-St Louis

29h 55m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$579Air Canada

Sun, Nov 15 - Wed, Nov 25

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

17h 25m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

1:15 pm - 10:32 amFCO Rome Fiumicino-STL Lambert-St Louis

28h 17m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$579Multiple Airlines

Sun, Nov 15 - Wed, Nov 25

1:20 pm - 4:55 pmSTL Lambert-St Louis-FCO Rome Fiumicino

20h 35m2 stops Chicago O'Hare Intl London Heathrow

11:00 am - 8:26 pmFCO Rome Fiumicino-STL Lambert-St Louis

16h 26m1 stop Philadelphia

$593British Airways

Mon, Nov 9 - Wed, Nov 18

5:29 pm - 4:55 pmSTL Lambert-St Louis-FCO Rome Fiumicino

16h 26m2 stops Chicago O'Hare Intl London Heathrow

11:00 am - 8:26 pmFCO Rome Fiumicino-STL Lambert-St Louis

16h 26m1 stop Philadelphia

$593British Airways

Mon, Nov 9 - Wed, Nov 18

5:29 pm - 5:50 pmSTL Lambert-St Louis-FCO Rome Fiumicino

17h 21m2 stops Chicago O'Hare Intl London Heathrow

11:00 am - 8:26 pmFCO Rome Fiumicino-STL Lambert-St Louis

16h 26m1 stop Philadelphia

$593American Airlines

Sun, Nov 8 - Wed, Nov 18

5:29 pm - 4:55 pmSTL Lambert-St Louis-FCO Rome Fiumicino

16h 26m2 stops Chicago O'Hare Intl London Heathrow

11:00 am - 8:26 pmFCO Rome Fiumicino-STL Lambert-St Louis

16h 26m1 stop Philadelphia

$593American Airlines

Mon, Nov 9 - Wed, Nov 18

Cheap last minute flights

Enter your travel dates to find the best prices.

11:01 am - 12:55 pmSTL Lambert-St Louis-FCO Rome Fiumicino

18h 54m2 stops Chicago O'Hare Intl London Heathrow

12:15 pm - 10:14 pmFCO Rome Fiumicino-STL Lambert-St Louis

16h 59m1 stop Philadelphia

$692British Airways

Mon, Sep 28 - Wed, Oct 7

12:00 pm - 10:50 amSTL Lambert-St Louis-FCO Rome Fiumicino

15h 50m1 stop Atlanta Hartsfield-Jackson

9:00 am - 5:19 pmFCO Rome Fiumicino-STL Lambert-St Louis

15h 19m1 stop Detroit Metropolitan Wayne County

$695Air France

Mon, Sep 28 - Wed, Oct 7

12:00 pm - 11:00 amSTL Lambert-St Louis-FCO Rome Fiumicino

16h 00m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

12:15 pm - 11:54 pmFCO Rome Fiumicino-STL Lambert-St Louis

18h 39m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

$700Delta

Mon, Sep 28 - Wed, Oct 7

5:36 pm - 7:35 amSTL Lambert-St Louis-FCO Rome Fiumicino

30h 59m2 stops Chicago O'Hare Intl Newark

11:00 am - 9:37 pmFCO Rome Fiumicino-STL Lambert-St Louis

17h 37m1 stop Newark

$759United Airlines

Sat, Sep 26 - Sat, Oct 10

5:36 pm - 7:35 amSTL Lambert-St Louis-FCO Rome Fiumicino

30h 59m2 stops Chicago O'Hare Intl Newark

12:55 pm - 10:48 amFCO Rome Fiumicino-STL Lambert-St Louis

28h 53m2 stops Newark Chicago O'Hare Intl

$759United Airlines

Sat, Sep 26 - Sat, Oct 10

12:10 pm - 11:45 amSTL Lambert-St Louis-FCO Rome Fiumicino

16h 35m1 stop Montreal Pierre Elliott Trudeau Intl

2:20 pm - 8:36 pmFCO Rome Fiumicino-STL Lambert-St Louis

37h 16m1 stop Denver Intl

$782Lufthansa

Sun, Sep 27 - Sun, Oct 4

2:40 pm - 11:45 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 05m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

2:20 pm - 8:36 pmFCO Rome Fiumicino-STL Lambert-St Louis

37h 16m1 stop Denver Intl

$800Lufthansa

Sun, Sep 27 - Sun, Oct 4

7:30 am - 10:55 amSTL Lambert-St Louis-FCO Rome Fiumicino

20h 25m1 stop Newark

11:00 am - 9:37 pmFCO Rome Fiumicino-STL Lambert-St Louis

17h 37m1 stop Newark

$835Austrian Airlines

Sat, Sep 26 - Sat, Oct 3

6:00 am - 7:35 amSTL Lambert-St Louis-FCO Rome Fiumicino

18h 35m1 stop Atlanta Hartsfield-Jackson

10:10 am - 11:42 pmFCO Rome Fiumicino-STL Lambert-St Louis

20h 32m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

$938Delta

Sun, Sep 27 - Sun, Oct 4

8:30 am - 12:05 pmSTL Lambert-St Louis-FCO Rome Fiumicino

20h 35m1 stop Dallas/Fort Worth

1:10 pm - 11:41 pmFCO Rome Fiumicino-STL Lambert-St Louis

17h 31m1 stop Charlotte Douglas

$950British Airways

Sun, Sep 27 - Sun, Oct 4

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air Canada flights from St. Louis to Rome

Our best Air Canada deals on St. Louis to Rome flight tickets

Air Canada

Nov 8

STL8:30 amLambert-St Louis

17h 25m

2 stops

FCO8:55 amRome Fiumicino

Nov 24

FCO11:15 amRome Fiumicino

35h 11m

1 stop

STL3:26 pmLambert-St Louis

$565

Air Canada

Nov 10

STL7:30 amLambert-St Louis

20h 25m

2 stops

FCO10:55 amRome Fiumicino

Jan 12

FCO11:15 amRome Fiumicino

31h 58m

2 stops

STL12:13 pmLambert-St Louis

$589

Air Canada

Feb 13

STL7:04 pmLambert-St Louis

30h 51m

2 stops

FCO8:55 amRome Fiumicino

Feb 25

FCO11:15 amRome Fiumicino

35h 11m

1 stop

STL3:26 pmLambert-St Louis

$602

American Airlines flights from St. Louis to Rome

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

American Airlines

Nov 9

STL5:29 pmLambert-St Louis

16h 26m

2 stops

FCO4:55 pmRome Fiumicino

Nov 18

FCO11:00 amRome Fiumicino

16h 26m

1 stop

STL8:26 pmLambert-St Louis

$594

American Airlines

Nov 8

STL5:29 pmLambert-St Louis

16h 26m

2 stops

FCO4:55 pmRome Fiumicino

Nov 18

FCO7:30 amRome Fiumicino

18h 52m

2 stops

STL7:22 pmLambert-St Louis

$597

American Airlines

Nov 8

STL5:29 pmLambert-St Louis

17h 21m

2 stops

FCO5:50 pmRome Fiumicino

Nov 18

FCO11:00 amRome Fiumicino

19h 59m

2 stops

STL11:59 pmLambert-St Louis

$598

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 11/8

8:30 am-8:55 am

2 stops17h 25m

Rome Fiumicino

Tue 11/24

11:15 am-3:26 pm

1 stop35h 11m

$565

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Wed 11/18

9:59 am-7:55 am

1 stop14h 56m

Rome Fiumicino

Fri 11/27

1:15 pm-2:34 pm

2 stops32h 19m

$576

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 11/15

8:30 am-7:45 am

1 stop16h 15m

Rome Fiumicino

Wed 11/25

1:15 pm-10:32 am

2 stops28h 17m

$576

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 11/8

4:05 pm-8:55 am

1 stop33h 50m

Rome Fiumicino

Tue 11/24

11:15 am-3:26 pm

1 stop35h 11m

$576

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 11/15

4:05 pm-8:55 am

1 stop33h 50m

Rome Fiumicino

Wed 11/25

1:15 pm-12:10 pm

2 stops29h 55m

$579

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 11/15

8:30 am-8:55 am

2 stops17h 25m

Rome Fiumicino

Wed 11/25

1:15 pm-10:32 am

2 stops28h 17m

$579

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/9

1:20 pm-4:55 pm

2 stops20h 35m

Rome Fiumicino

Wed 11/18

11:00 am-8:26 pm

1 stop16h 26m

$593

Quickest round-trip

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/9

5:29 pm-4:55 pm

2 stops16h 26m

Rome Fiumicino

Wed 11/18

11:00 am-8:26 pm

1 stop16h 26m

$593

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 11/8

5:29 pm-5:50 pm

2 stops17h 21m

Rome Fiumicino

Wed 11/18

11:00 am-8:26 pm

1 stop16h 26m

$593

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/9

5:29 pm-4:55 pm

2 stops16h 26m

Rome Fiumicino

Wed 11/18

11:00 am-8:26 pm

1 stop16h 26m

$593

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 low for flights on this route.

Typical prices usually range from $1,002 to $1,378.
The lowest price recently found on this route was $565.

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 $1,002 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 21% 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

Best Price Found	$329
Fastest flight time	14h 30m
Direct flights	None

The best one-way flight to Rome from St. Louis in the past 72 hours is $329. The best round-trip flight deal from St. Louis to Rome found on momondo in the last 72 hours is $565.

The fastest flight from St. Louis to Rome takes 14h 30m

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

Search flight deals

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 14h 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 September 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 (31% 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 8,228 reviews	Search British Airways flights
Lufthansa	PriceFrom $500	Free Cancellation	Rating 6.8 8,235 reviews	Search Lufthansa flights
KLM	PriceFrom $506	Free Cancellation	Rating 7.8 1,575 reviews	Search KLM flights
Delta	PriceFrom $601	Free Cancellation	Rating 7.8 8,595 reviews	Search Delta flights
United Airlines	PriceFrom $744	Free Cancellation	Rating 7.4 10,229 reviews	Search United Airlines flights
Air Canada	PriceFrom $810	Free Cancellation	Rating 7.1 11,667 reviews	Search Air Canada flights
American Airlines	PriceFrom $867	Free Cancellation	Rating 7.0 12,079 reviews	Search American Airlines flights

Fiumicino

Civitavecchia

Gaeta

Orvieto

Ladispoli

Tivoli

Montepulciano

Orbetello

Pienza

Cassino

Chianciano Terme

Ponza

Porto Ercole

Sperlonga

Terracina

Anzio

Ciampino

Saturnia

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Thu 10/22

Thu 10/29

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Italy

Nearby airports

Airlines

Cabin classes

Other Italy destinations

Other flights from St. Louis

Complete your trip

Feeling lucky

Fly into one of these airports located in Rome

Rome Ciampino Airport

Rome Fiumicino Airport

Cheap flights from St. Louis to Rome from $329

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 3/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from St. Louis to Rome

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Air Canada flights from St. Louis to Rome

Our best Air Canada deals on St. Louis to Rome flight tickets

American Airlines flights from St. Louis to Rome

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

momondo Fare Finder

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

See travel insights to Rome from

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

Best Price Found

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

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.

Popular cities in Italy

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

Fly to other destinations from St. Louis

According to popular flight searches on momondo this year

Complete your trip to Rome

Explore popular destinations other users love

According to popular flight searches on momondo this year