STL - FCO

$329 Find Cheap Flights from St. Louis to Rome Fiumicino Airport - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$656
Typical prices: $865-$1,304
United Airlines
Thu 11/8Sun 11/18
STL - FCO • 1 stop
Cheapest one-way
$329
Typical prices: $483-$791
British Airways
Sat 3/24
STL - FCO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Rome Fiumicino Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 49% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Charlotte Douglas (CLT)
Cheapest • Avg $836 (round-trip)
London Heathrow (LHR)
Shortest trip • 13h 21m (one-way)
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Insights
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Flight Deals

Cheap Flights from St. Louis to Rome (STL-FCO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Rome

Sun, Nov 8 - Wed, Nov 18
United Airlines Logo
6:00 am - 10:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
21h 55m1 stop Newark
United Airlines Logo
1:15 pm - 4:17 pmFCO  Rome Fiumicino-STL Lambert-St Louis
34h 02m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$656United Airlines
Mon, Nov 9 - Wed, Nov 18
United Airlines Logo
7:30 am - 7:45 amSTL  Lambert-St Louis-FCO Rome Fiumicino
17h 15m1 stop Chicago O'Hare Intl
United Airlines Logo
1:15 pm - 4:17 pmFCO  Rome Fiumicino-STL Lambert-St Louis
34h 02m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$656United Airlines
Sat, Nov 7 - Fri, Nov 20
Air Canada Logo
6:50 pm - 8:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
31h 05m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
1:15 pm - 3:43 pmFCO  Rome Fiumicino-STL Lambert-St Louis
33h 28m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$659Air Canada
Tue, Dec 1 - Wed, Dec 9
Air Canada Logo
6:30 am - 8:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
43h 25m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
1:15 pm - 10:59 pmFCO  Rome Fiumicino-STL Lambert-St Louis
40h 44m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$659Air Canada
Sun, Feb 7 - Fri, Feb 19
Iberia Logo
1:05 pm - 9:00 amSTL  Lambert-St Louis-FCO Rome Fiumicino
12h 55m1 stop Philadelphia
Iberia Logo
7:30 am - 8:22 pmFCO  Rome Fiumicino-STL Lambert-St Louis
19h 52m2 stops Madrid Barajas Chicago O'Hare Intl
$664Iberia
Sun, Nov 8 - Tue, Nov 24
American Airlines Logo
5:29 pm - 4:55 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
16h 26m2 stops Chicago O'Hare Intl London Heathrow
American Airlines Logo
11:00 am - 8:33 pmFCO  Rome Fiumicino-STL Lambert-St Louis
16h 33m1 stop Philadelphia
$665American Airlines
Sun, Nov 8 - Tue, Nov 24
American Airlines Logo
5:29 pm - 4:55 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
16h 26m2 stops Chicago O'Hare Intl London Heathrow
American Airlines Logo
11:00 am - 8:33 pmFCO  Rome Fiumicino-STL Lambert-St Louis
16h 33m1 stop Philadelphia
$667American Airlines
Mon, Nov 9 - Wed, Nov 18
British Airways Logo
8:29 am - 10:45 amSTL  Lambert-St Louis-FCO Rome Fiumicino
19h 16m1 stop Dallas/Fort Worth
British Airways Logo
1:10 pm - 9:59 pmFCO  Rome Fiumicino-STL Lambert-St Louis
15h 49m1 stop Dallas/Fort Worth
$669British Airways
Sun, Feb 7 - Fri, Feb 19
Iberia Logo
1:45 pm - 1:55 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
17h 10m2 stops Chicago O'Hare Intl Madrid Barajas
Iberia Logo
7:30 am - 8:22 pmFCO  Rome Fiumicino-STL Lambert-St Louis
19h 52m2 stops Madrid Barajas Chicago O'Hare Intl
$672Iberia
Sun, Dec 6 - Tue, Dec 15
British Airways Logo
5:38 pm - 5:50 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
17h 12m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
1:10 pm - 8:46 pmFCO  Rome Fiumicino-STL Lambert-St Louis
14h 36m1 stop Philadelphia
$673British Airways
Booking Insights

Price, demand and travel trends for St. Louis to Rome Fiumicino Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from St. Louis to Rome Fiumicino Airport?

Round-trip flights from St. Louis to Rome Fiumicino Airport typically range from $865 to $1,304. The lowest price found in the past 5 days was $656, on United Airlines.

What's the cheapest day of the week to fly from St. Louis to Rome Fiumicino Airport?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from St. Louis to Rome Fiumicino Airport. It’s 11% cheaper than the average day, while Friday is the most expensive, with prices 13% higher.

What’s the cheapest month to fly from St. Louis to Rome Fiumicino Airport?

•February is the cheapest month to fly from St. Louis to Rome Fiumicino Airport at $554 round-trip.
•June ($1,686) and May ($1,205) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 204% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from St. Louis to Rome Fiumicino Airport the cheapest?

Flights from St. Louis to Rome Fiumicino Airport are cheapest 5 weeks before departure. Booking in this window typically costs about 36% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for St. Louis to Rome Fiumicino Airport flights

Low season

January

Cheapest flight

$329
Beat the crowds with an average 57% drop in travelers.
The most popular month to fly with an average 68% increase in travelers.
One-way flight from St. Louis to Rome Fiumicino Airport

When to book flights from St. Louis to Rome

Are your dates flexible? Find out the best times to travel from St. Louis to Rome based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Rome Fiumicino Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to Rome Fiumicino Airport?

    Four cabin classes are available on flights from St. Louis to Rome Fiumicino Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from St. Louis to Rome Fiumicino Airport?

    A nonstop flight from St. Louis to Rome Fiumicino Airport takes 00m, covering 5,050 miles.

  • Do I need a passport to fly from St. Louis to Rome Fiumicino Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a St. Louis to Rome Fiumicino Airport flight?

    Round-trip flights from St. Louis to Rome Fiumicino Airport range from $865 to $1,304, with an average of $1,082 over the past 12 months. Anything below $865 counts as a good deal.

  • How expensive are last-minute St. Louis to Rome Fiumicino Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 24% above the $1,082 route average. Book 5 weeks before departure for the lowest fares.

  • How are flight prices from St. Louis to Rome Fiumicino Airport looking right now?

    One-way fares from St. Louis to Rome Fiumicino Airport are currently lower than usual. Average one-way flight prices are about $346, which is 48% below the typical average for this route.

  • What car rental options are available at Rome Fiumicino Airport (FCO)?

    Rome Fiumicino Airport (FCO) hosts 5 major car rental companies, with daily rates starting from around $1 for economy cars. Top options include:

    • Record go
    • Target Italy
    • Rent Smart 24
    • Galdierirent
    • Europcar

  • Which airports can I use when flying from St. Louis to Rome Fiumicino Airport?

    Flights from St. Louis to Rome Fiumicino Airport usually depart from Lambert-St Louis (STL) and arrive at Rome Fiumicino (FCO).

  • Which airports do connecting flights from St. Louis to Rome Fiumicino Airport pass through?

    One-stop flights from St. Louis to Rome Fiumicino Airport most commonly connect through:

    • Chicago O'Hare Intl (ORD) - 24% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 18% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) - 18% of one-stop connections
    • Frankfurt am Main (FRA) - 12% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Rome Fiumicino Airport?

    Yes. Flexible dates can save you up to 21% on flights from St. Louis to Rome Fiumicino Airport. Wednesday is the cheapest departure day at $973 round-trip on average, while Friday is the most expensive at $1,230, a difference of $257.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from St. Louis to Rome Fiumicino Airport?

    Flying via London Heathrow (LHR) gives the shortest average 1-stop total travel time at 13h 21m, compared with 13h 31m via Chicago O'Hare Intl (ORD) and 13h 35m via Toronto Pearson Intl (YYZ).

  • What is the time difference between St. Louis and Rome Fiumicino Airport?

    Rome Fiumicino Airport is 7 hours ahead of St. Louis (Central European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Rome Fiumicino Airport?

    Some of the most popular sights in Rome Fiumicino Airport are Piazza Navona, Colosseum and Fontana di Trevi. These are among the most viewed places in Rome Fiumicino Airport on KAYAK.

Your guide to booking St. Louis to Rome Fiumicino Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $973, about $257 less than Friday fares (21% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 5 weeks before you fly. On this route, that window historically saves about 36% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your St. Louis to Rome Fiumicino Airport trip for February. Fares historically average $554 round-trip in that month - typically $1,132 less than the most expensive month, which is June (based on the last 12 months).

More options for your flight from St. Louis to Rome

Complete your trip to Rome with a hotel stay or car rental

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