FCO - STL

$344 Find Cheap Flights from Rome to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Rome to St. Louis departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rome to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rome to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$784
Overall average: $1,022
United Airlines
Mon 5/18Mon 6/29
FCO - STL • 2 stops
Cheapest one-way
$344
Typical prices: $625-$709
Multiple Airlines
Mon 4/20
FCO - STL • 2 stops
When to travel
April
Cheapest • 21% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Rome to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Mon, May 18 - Mon, Jun 29
United Airlines Logo
6:50 am - 5:55 pm
FCO
-
STL
18h 05m
2 stops
United Airlines Logo
1:00 pm - 1:15 pm
STL
-
FCO
17h 15m
1 stop
$784United Airlines
Tue, Mar 17 - Tue, Mar 24
Air Canada Logo
1:30 pm - 3:29 pm
FCO
-
STL
31h 59m
2 stops
Air Canada Logo
7:40 am - 10:05 am
STL
-
FCO
20h 25m
2 stops
$799Air Canada
Tue, Mar 17 - Tue, Mar 24
United Airlines Logo
9:45 am - 10:59 pm
FCO
-
STL
19h 14m
1 stop
United Airlines Logo
11:25 am - 7:45 am
STL
-
FCO
14h 20m
1 stop
$801United Airlines
Fri, May 15 - Wed, May 20
Delta Logo
9:00 am - 5:16 pm
FCO
-
STL
15h 16m
1 stop
Delta Logo
6:20 am - 12:45 pm
STL
-
FCO
23h 25m
1 stop
$927Delta
Fri, May 15 - Wed, May 20
Aer Lingus Logo
11:10 am - 11:48 pm
FCO
-
STL
19h 38m
2 stops
Aer Lingus Logo
12:11 pm - 7:55 pm
STL
-
FCO
24h 44m
2 stops
$1,034Aer Lingus
Sun, Feb 15 - Thu, Feb 19
American Airlines Logo
1:10 pm - 11:04 pm
FCO
-
STL
16h 54m
1 stop
American Airlines Logo
2:00 pm - 12:00 pm
STL
-
FCO
15h 00m
2 stops
$1,059American Airlines
Fri, May 15 - Wed, May 20
Multiple Airlines Logo
12:30 pm - 8:31 pm
FCO
-
STL
15h 01m
2 stops
Multiple Airlines Logo
7:30 am - 11:25 am
STL
-
FCO
20h 55m
2 stops
$1,063Multiple Airlines
Fri, May 15 - Wed, May 20
Multiple Airlines Logo
2:45 pm - 11:01 pm
FCO
-
STL
15h 16m
1 stop
Multiple Airlines Logo
7:30 am - 11:25 am
STL
-
FCO
20h 55m
2 stops
$1,064Multiple Airlines
Mon, Feb 16 - Fri, Feb 20
American Airlines Logo
8:20 pm - 8:55 am
FCO
-
STL
19h 35m
2 stops
American Airlines Logo
6:57 pm - 6:10 pm
STL
-
FCO
16h 13m
2 stops
$1,068American Airlines
Sun, Feb 15 - Thu, Feb 19
British Airways Logo
1:10 pm - 11:04 pm
FCO
-
STL
16h 54m
1 stop
British Airways Logo
2:00 pm - 9:00 am
STL
-
FCO
12h 00m
1 stop
$1,070British Airways
Booking Insights

KAYAK's insights & trends for Rome to St. Louis flights

Get data-powered insights and trends into flights from Rome to St. Louis to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Rome Fiumicino Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Rome Fiumicino Airport to St. Louis is April, where tickets cost $793 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $1,471 and $1,179 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$344
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Rome to St. Louis

When to book flights from Rome to St. Louis

Are your dates flexible? Find out the best times to travel from Rome to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Rome to St. Louis flights

  • What is the cheapest flight from Rome Fiumicino Airport to St. Louis?

    In the last 3 days, the lowest price for a flight from Rome Fiumicino Airport to St. Louis was $377 for a one-way ticket and $794 for a round-trip.

  • Do I need a passport to fly between Rome and St. Louis?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Rome and on arrival in St. Louis.

  • Which airports will I be using when flying from Rome to St. Louis?

    Rome and St. Louis are both served by 1 main airport. You will leave Rome from Rome Fiumicino and will be arriving at Lambert-St Louis.

  • Which aircraft models fly most regularly from Rome to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Rome to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Rome to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Rome to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Rome is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Rome to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Rome with another airline. Booking your flights between Rome and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Rome to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Rome up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Rome to St. Louis

Information on your arrival and departure airports

Rome (FCO)
St. Louis (STL)