FCO - STL

$365 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 3/17. 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
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Everything you should know

Cheapest round-trip
$748
Overall average: $967
Lufthansa
Wed 1/14Wed 1/21
FCO - STL • 2 stops
Cheapest one-way
$365
Multiple Airlines
Tue 3/17
FCO - STL • 3 stops
When to travel
April
Cheapest • 22% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Wed, Jan 14 - Wed, Jan 21
Lufthansa Logo
9:45 am - 11:59 pmFCO-STL
21h 14m2 stops
Lufthansa Logo
11:22 am - 7:55 amSTL-FCO
13h 33m1 stop
$748Lufthansa
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Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
7:05 am - 7:27 pmFCO-STL
19h 22m2 stops
United Airlines Logo
11:22 am - 7:55 amSTL-FCO
13h 33m1 stop
$757United Airlines
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Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
7:05 am - 7:27 pmFCO-STL
19h 22m2 stops
United Airlines Logo
11:22 am - 7:55 amSTL-FCO
13h 33m1 stop
$758United Airlines
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Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
12:45 pm - 11:39 pmFCO-STL
17h 54m2 stops
Multiple Airlines Logo
5:04 pm - 5:25 pmSTL-FCO
17h 21m2 stops
$765Multiple Airlines
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Wed, Jan 14 - Wed, Jan 21
Lufthansa Logo
11:00 am - 7:27 pmFCO-STL
15h 27m1 stop
Lufthansa Logo
11:22 am - 7:55 amSTL-FCO
13h 33m1 stop
$766Lufthansa
Find Deal
Thu, Jan 15 - Mon, Jan 19
Lufthansa Logo
10:30 am - 11:59 pmFCO-STL
20h 29m1 stop
Lufthansa Logo
11:22 am - 7:55 amSTL-FCO
13h 33m1 stop
$781Lufthansa
Find Deal
Thu, Jan 15 - Mon, Jan 19
Lufthansa Logo
10:30 am - 11:59 pmFCO-STL
20h 29m1 stop
Lufthansa Logo
11:22 am - 7:55 amSTL-FCO
13h 33m1 stop
$782Lufthansa
Find Deal
Sun, Dec 14 - Fri, Jan 9
British Airways Logo
1:10 pm - 10:25 pmFCO-STL
16h 15m1 stop
British Airways Logo
2:54 pm - 12:25 pmSTL-FCO
14h 31m2 stops
$786British Airways
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Sun, Dec 14 - Fri, Jan 9
American Airlines Logo
1:10 pm - 10:25 pmFCO-STL
16h 15m1 stop
American Airlines Logo
12:11 pm - 12:25 pmSTL-FCO
17h 14m2 stops
$794American Airlines
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Sun, Dec 14 - Fri, Jan 9
American Airlines Logo
1:10 pm - 8:50 amFCO-STL
26h 40m1 stop
American Airlines Logo
12:11 pm - 12:25 pmSTL-FCO
17h 14m2 stops
$800American Airlines
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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’s the cheapest day of the week to fly from Rome to St. Louis?

The average price of all round-trip flights from Rome Fiumicino Airport to St. Louis clicked on KAYAK for each day over the last 12 months.

For Rome to St. Louis, Thursday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from St. Louis back to Rome, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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.

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Good to know

Low seasonJanuary
Cheapest flight$365
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 12% 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 $365 for a one-way ticket and $748 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)