Cheap flights from St. Louis to Rome from $327
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 3/9. 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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Air Canada flights from St. Louis to Rome Fiumicino Airport
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Fly from
Fly to
Route
Depart
Return
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Sun 3/14
4:05 pm-7:25 pm
2 stops21h 20m
Rome Fiumicino
Wed 3/24
12:50 pm-3:02 pm
2 stops32h 12m
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Mon 11/9
10:05 am-8:15 am
1 stop15h 10m
Rome Fiumicino
Fri 11/20
10:00 am-5:14 pm
1 stop14h 14m
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Sun 3/14
4:40 pm-5:45 pm
1 stop19h 05m
Rome Fiumicino
Wed 3/24
12:50 pm-3:02 pm
2 stops32h 12m
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Sun 3/14
4:40 pm-5:45 pm
1 stop19h 05m
Rome Fiumicino
Wed 3/24
7:05 am-2:45 pm
1 stop13h 40m
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Mon 3/15
7:30 am-7:55 am
1 stop18h 25m
Rome Fiumicino
Wed 3/24
12:50 pm-3:41 pm
2 stops32h 51m
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Sat 3/13
7:04 pm-7:55 am
2 stops29h 51m
Rome Fiumicino
Wed 3/24
12:20 pm-3:02 pm
2 stops32h 42m
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Sun 2/28
6:00 am-8:30 am
2 stops19h 30m
Rome Fiumicino
Thu 3/11
11:15 am-3:02 pm
2 stops34h 47m
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Mon 1/11
4:05 pm-8:55 am
2 stops57h 50m
Rome Fiumicino
Wed 1/27
1:15 pm-2:28 pm
2 stops32h 13m
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Mon 1/11
6:45 pm-6:00 pm
2 stops16h 15m
Rome Fiumicino
Wed 1/27
7:05 am-1:45 pm
1 stop13h 40m
St. LouisRome
STL Lambert-St Louis - FCO Rome Fiumicino
STLFCO
Lambert-St Louis
Mon 11/9
10:05 am-8:15 am
1 stop15h 10m
Rome Fiumicino
Thu 12/3
6:10 am-4:30 pm
2 stops17h 20m
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 $1,038 to $1,213.The lowest price recently found on this route was $721.
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 January. Flight prices, which tend to average around $557, 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 January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $634.
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 $1,002 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.
What is the cheapest airline that flies from Lambert-St Louis to Rome Fiumicino?
Iberia and British Airways are the most popular carriers operating from Lambert-St Louis to Rome Fiumicino
What airlines fly to Rome Fiumicino Airport?
United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Rome Fiumicino Airport from St. Louis according to our data. United Airlines is the first choice among our users, with 33% 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 airport is the most popular layover for flights between St. Louis and Rome Fiumicino Airport?
Montreal (YUL) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from St. Louis to Rome Fiumicino Airport?
Flights via Charlotte (CLT) offer the lowest average round-trip price of $825.
Which layover airport has the shortest travel time from St. Louis to Rome Fiumicino Airport?
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 Fiumicino Airport?
Charlotte (CLT) has the shortest average layover time for this route: 2h 12m.
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
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 27m 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 October 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 United Airlines, making up 26% of the total bookings. Other popular airlines include American Airlines with 23%, Delta with 17%, and British Airways with 12%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $472 | Free Cancellation | Rating 6.7 8,255 reviews | |||
| PriceFrom $500 | Free Cancellation | Rating 6.8 8,272 reviews | |||
| PriceFrom $506 | Free Cancellation | Rating 7.8 1,580 reviews | |||
| PriceFrom $596 | Free Cancellation | Rating 7.8 8,641 reviews | |||
| PriceFrom $810 | Free Cancellation | Rating 7.1 11,744 reviews | |||
| PriceFrom $867 | Free Cancellation | Rating 7.0 12,144 reviews | |||
| PriceFrom $894 | Free Cancellation | Rating 7.4 10,319 reviews |
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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.