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STL - FCO

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

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$715
Typical prices: $832-$1,296
Multiple Airlines
Thu 11/15Sun 11/25
STL - FCO • 1 stop
Cheapest one-way
$329
Typical prices: $500-$818
British Airways
Wed 2/7
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
24 weeks
in advance
Our data shows that travelers who book at least 24 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 47% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Washington, D.C. Dulles Intl (IAD)
Cheapest • Avg $655 (round-trip)
London Heathrow (LHR)
Shortest trip • 13h 21m (one-way)
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Insights
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We hope you love your trip to Rome Fiumicino Airport!
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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 15 - Wed, Nov 25
Multiple Airlines Logo
4:05 pm - 8:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
33h 50m1 stop Toronto Pearson Intl
Multiple Airlines Logo
7:05 am - 1:45 pmFCO  Rome Fiumicino-STL Lambert-St Louis
13h 40m1 stop Frankfurt am Main
$715Multiple Airlines
Sun, Nov 15 - Wed, Nov 25
Multiple Airlines Logo
4:05 pm - 8:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
33h 50m1 stop Toronto Pearson Intl
Multiple Airlines Logo
7:05 am - 1:45 pmFCO  Rome Fiumicino-STL Lambert-St Louis
13h 40m1 stop Frankfurt am Main
$716Multiple Airlines
Sun, Nov 15 - Wed, Nov 25
United Airlines Logo
8:30 am - 7:45 amSTL  Lambert-St Louis-FCO Rome Fiumicino
16h 15m1 stop Chicago O'Hare Intl
United Airlines Logo
1:15 pm - 10:32 amFCO  Rome Fiumicino-STL Lambert-St Louis
28h 17m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$726United Airlines
Mon, Nov 9 - Wed, Nov 25
United Airlines Logo
1:08 pm - 7:45 amSTL  Lambert-St Louis-FCO Rome Fiumicino
11h 37m1 stop Chicago O'Hare Intl
United Airlines Logo
1:15 pm - 10:32 amFCO  Rome Fiumicino-STL Lambert-St Louis
28h 17m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$726United Airlines
Mon, Mar 15 - Wed, Mar 24
Lufthansa Logo
7:04 pm - 6:00 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
16h 56m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
7:05 am - 2:45 pmFCO  Rome Fiumicino-STL Lambert-St Louis
13h 40m1 stop Frankfurt am Main
$728Lufthansa
Sun, Nov 8 - Wed, Nov 18
Air Canada Logo
7:30 am - 8:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
18h 25m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
1:15 pm - 9:40 pmFCO  Rome Fiumicino-STL Lambert-St Louis
39h 25m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$730Air Canada
Sun, Nov 8 - Wed, Nov 18
Air Canada Logo
4:05 pm - 8:55 amSTL  Lambert-St Louis-FCO Rome Fiumicino
33h 50m1 stop Toronto Pearson Intl
Air Canada Logo
1:15 pm - 9:40 pmFCO  Rome Fiumicino-STL Lambert-St Louis
39h 25m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$730Air Canada
Mon, Nov 9 - 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
7:05 am - 1:45 pmFCO  Rome Fiumicino-STL Lambert-St Louis
13h 40m1 stop Frankfurt am Main
$734Lufthansa
Tue, Oct 27 - Thu, Nov 12
British Airways Logo
1:06 pm - 12:20 pmSTL  Lambert-St Louis-FCO Rome Fiumicino
17h 14m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
11:00 am - 8:26 pmFCO  Rome Fiumicino-STL Lambert-St Louis
16h 26m1 stop Philadelphia
$743British Airways
Wed, Nov 18 - Wed, Dec 2
British Airways Logo
9:50 am - 11:10 amSTL  Lambert-St Louis-FCO Rome Fiumicino
18h 20m2 stops Boston Logan Intl London Heathrow
British Airways Logo
8:35 pm - 6:53 pmFCO  Rome Fiumicino-STL Lambert-St Louis
29h 18m2 stops London Heathrow Chicago O'Hare Intl
$786British 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.

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 14% cheaper than the average day, while Friday is the most expensive, with prices 16% 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 ($1,198) 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 24 weeks before departure. Booking in this window typically costs about 38% 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 43% drop in travelers.
The most popular month to fly with an average 150% 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 $832 to $1,296, with an average of $1,037 over the past 12 months. Anything below $832 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 29% above the $1,037 route average. Book 24 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 $354, which is 46% 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:

    • Target Italy
    • Record go
    • 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) - 21% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) - 18% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 17% 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 26% on flights from St. Louis to Rome Fiumicino Airport. Wednesday is the cheapest departure day at $897 round-trip on average, while Friday is the most expensive at $1,212, a difference of $315.

    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 32m via Chicago O'Hare Intl (ORD) and 13h 37m 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, Fontana di Trevi and Colosseum. 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 $897, about $315 less than Friday fares (26% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 24 weeks before you fly. On this route, that window historically saves about 38% 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

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