Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

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.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Rome

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:50 pm - 6:00 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
16h 10m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
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
Multiple Airlines Logo
3:40 pm - 12:40 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
14h 00m1 stop Frankfurt am Main
Multiple Airlines Logo
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
Multiple Airlines Logo
6:00 am - 8:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
19h 55m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
7:05 am - 1:45 pmFCO  Rome Fiumicino-STL Lambert-St Louis
13h 40m1 stop Frankfurt am Main
$758Multiple Airlines
Sun, Nov 8 - Wed, Nov 18
Lufthansa Logo
6:50 pm - 6:00 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
16h 10m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
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
United Airlines Logo
6:30 am - 8:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
19h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
11:15 am - 2:30 pmFCO  Rome Fiumicino-STL Lambert-St Louis
34h 15m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$774United Airlines
Sun, Jan 31 - Thu, Feb 4
Air Canada Logo
4:05 pm - 10:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
11h 50m1 stop Toronto Pearson Intl
Air Canada Logo
1:15 pm - 3:41 pmFCO  Rome Fiumicino-STL Lambert-St Louis
33h 26m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$774Air Canada
Tue, Nov 10 - Wed, Dec 9
Air Canada Logo
4:05 pm - 10:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
11h 50m1 stop Toronto Pearson Intl
Air Canada Logo
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
United Airlines Logo
1:00 pm - 8:30 amSTL  Lambert-St Louis-FCO Rome Fiumicino
12h 30m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
11:15 am - 12:06 pmFCO  Rome Fiumicino-STL Lambert-St Louis
31h 51m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$775United Airlines
Sun, Jan 31 - Thu, Feb 4
KLM Logo
12:20 pm - 11:20 amSTL  Lambert-St Louis-FCO Rome Fiumicino
16h 00m1 stop Atlanta Hartsfield-Jackson
KLM Logo
10:25 am - 11:56 pmFCO  Rome Fiumicino-STL Lambert-St Louis
20h 31m1 stop Atlanta Hartsfield-Jackson
$790KLM
Mon, Nov 9 - Tue, Nov 17
KLM Logo
12:20 pm - 11:20 amSTL  Lambert-St Louis-FCO Rome Fiumicino
16h 00m1 stop Atlanta Hartsfield-Jackson
KLM Logo
10:25 am - 11:56 pmFCO  Rome Fiumicino-STL Lambert-St Louis
20h 31m1 stop Atlanta Hartsfield-Jackson
$824KLM
Mon, Nov 9 - Tue, Nov 17

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Air Canada flights from St. Louis to Rome Fiumicino Airport

Our best Air Canada deals on St. Louis to Rome Fiumicino Airport flight tickets
Air Canada
Nov 13
STL6:50 pmLambert-St Louis
55h 05m
2 stops
FCO8:55 amRome Fiumicino
Dec 11
FCO1:15 pmRome Fiumicino
33h 26m
2 stops
STL3:41 pmLambert-St Louis
$779
Air Canada
Nov 13
STL4:05 pmLambert-St Louis
57h 50m
2 stops
FCO8:55 amRome Fiumicino
Dec 10
FCO11:15 amRome Fiumicino
31h 51m
2 stops
STL12:06 pmLambert-St Louis
$782
Air Canada
Nov 9
STL6:50 pmLambert-St Louis
33h 05m
2 stops
FCO10:55 amRome Fiumicino
Dec 10
FCO11:15 amRome Fiumicino
35h 26m
2 stops
STL3:41 pmLambert-St Louis
$783

American Airlines flights from St. Louis to Rome Fiumicino Airport

Our best American Airlines deals on St. Louis to Rome Fiumicino Airport flight tickets
American Airlines
Aug 28
STL6:00 amLambert-St Louis
18h 05m
1 stop
FCO7:05 amRome Fiumicino
Sep 8
FCO12:15 pmRome Fiumicino
18h 19m
1 stop
STL11:34 pmLambert-St Louis
$1,052
American Airlines
Aug 28
STL6:00 amLambert-St Louis
18h 05m
1 stop
FCO7:05 amRome Fiumicino
Sep 8
FCO1:30 pmRome Fiumicino
16h 25m
1 stop
STL10:55 pmLambert-St Louis
$1,116
American Airlines
Aug 28
STL6:00 amLambert-St Louis
18h 05m
1 stop
FCO7:05 amRome Fiumicino
Sep 8
FCO12:15 pmRome Fiumicino
18h 19m
1 stop
STL11:34 pmLambert-St Louis
$1,143

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Rome Fiumicino Airport 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 August 14, 2026.
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
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

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

6:00 am-8:55 am

2 stops19h 55m

Rome Fiumicino

Wed 11/18

7:05 am-1:45 pm

1 stop13h 40m

$758

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

Sun 1/31

6:30 am-8:55 am

2 stops19h 25m

Rome Fiumicino

Thu 2/4

11:15 am-2:30 pm

2 stops34h 15m

$774

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

Wed 12/9

1:15 pm-3:41 pm

2 stops33h 26m

$774

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

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Sun 1/31

1:00 pm-8:30 am

1 stop12h 30m

Rome Fiumicino

Thu 2/4

11:15 am-12:06 pm

2 stops31h 51m

$775

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/9

12:20 pm-11:20 am

1 stop16h 00m

Rome Fiumicino

Tue 11/17

10:25 am-11:56 pm

1 stop20h 31m

$790

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Mon 11/9

12:20 pm-11:20 am

1 stop16h 00m

Rome Fiumicino

Tue 11/17

10:25 am-11:56 pm

1 stop20h 31m

$824

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Rome from

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

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 $890 to $1,154.
The lowest price recently found on this route was $754.

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 $634, 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 $665.

How far in advance should I book a flight from St. Louis 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 $992 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 $729 on momondo.

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

You could potentially save up to 18% 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 50m

Direct flights

None
The fastest flight from St. Louis to Rome Fiumicino Airport takes 11h 50m
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 50m 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?

  • 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?

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 AirwaysPriceFrom $472Free CancellationRating
6.7
8,157 reviews
Search British Airways flights
LufthansaPriceFrom $500Free CancellationRating
6.8
8,191 reviews
Search Lufthansa flights
KLMPriceFrom $506Free CancellationRating
7.8
1,558 reviews
Search KLM flights
United AirlinesPriceFrom $618Free CancellationRating
7.4
10,109 reviews
Search United Airlines flights
DeltaPriceFrom $665Free CancellationRating
7.8
8,510 reviews
Search Delta flights
American AirlinesPriceFrom $778Free CancellationRating
7.1
11,933 reviews
Search American Airlines flights
Air CanadaPriceFrom $810Free CancellationRating
7.1
11,471 reviews
Search Air Canada flights

Traveling to a place near Rome?

Book flights to Rome if you plan to visit one of these locations
Fiumicino
Civitavecchia
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?

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.

An easier way to manage your Rome Fiumicino Airport 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
Sun 9/13
Sun 9/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Rome

Popular cities in Italy

Popular flights according to clicks in the last 7 days on momondo
Flights to Milan Malpensa Airportfrom $535
Flights to Venice Marco Polo Airportfrom $544
Flights to Milan Linate Airportfrom $544
Flights to Rome Ciampino Airportfrom $621
Flights to Venice Treviso A. Canova Airportfrom $573