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771 € Cheap Flights from Rome Fiumicino to St Louis

Compare Rome Fiumicino to St Louis flight deals

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Flight deals from Rome Fiumicino to St Louis

Looking for a cheap last-minute deal or the best return flight from Rome Fiumicino Airport to St Louis Airport? If you want to travel next month, return fares start from 781 €. Find the lowest prices on one-way and return tickets right here.
St Louis.771 € per passenger.Departing Wed, 20 May, returning Sun, 24 May.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Rome Fiumicino on Wed, 20 May, arriving in St Louis.Inbound indirect flight with British Airways, departs from St Louis on Sun, 24 May, arriving in Rome Fiumicino.Price includes taxes and charges.From 771 €, select.
St Louis.780 € per passenger.Departing Tue, 26 May, returning Tue, 2 Jun.Return flight with Wizz Air Malta and Frontier Airlines.Outbound indirect flight with Wizz Air Malta, departs from Rome Fiumicino on Tue, 26 May, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Tue, 2 Jun, arriving in Rome Fiumicino.Price includes taxes and charges.From 780 €, select.
St Louis.781 € per passenger.Departing Mon, 1 Jun, returning Mon, 29 Jun.Return flight with Ryanair and Frontier Airlines.Outbound indirect flight with Ryanair, departs from Rome Fiumicino on Mon, 1 Jun, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Mon, 29 Jun, arriving in Rome Fiumicino.Price includes taxes and charges.From 781 €, select.
St Louis.810 € per passenger.Departing Wed, 28 Oct, returning Wed, 4 Nov.Return flight with United.Outbound indirect flight with United, departs from Rome Fiumicino on Wed, 28 Oct, arriving in St Louis.Inbound indirect flight with United, departs from St Louis on Wed, 4 Nov, arriving in Rome Fiumicino.Price includes taxes and charges.From 810 €, select.
St Louis.810 € per passenger.Departing Fri, 16 Oct, returning Fri, 23 Oct.Return flight with United.Outbound indirect flight with United, departs from Rome Fiumicino on Fri, 16 Oct, arriving in St Louis.Inbound indirect flight with United, departs from St Louis on Fri, 23 Oct, arriving in Rome Fiumicino.Price includes taxes and charges.From 810 €, select.
St Louis.815 € per passenger.Departing Thu, 19 Nov, returning Mon, 14 Dec.Return flight with United.Outbound indirect flight with United, departs from Rome Fiumicino on Thu, 19 Nov, arriving in St Louis.Inbound indirect flight with United, departs from St Louis on Mon, 14 Dec, arriving in Rome Fiumicino.Price includes taxes and charges.From 815 €, select.
St Louis.817 € per passenger.Departing Tue, 3 Nov, returning Tue, 10 Nov.Return flight with United.Outbound indirect flight with United, departs from Rome Fiumicino on Tue, 3 Nov, arriving in St Louis.Inbound indirect flight with United, departs from St Louis on Tue, 10 Nov, arriving in Rome Fiumicino.Price includes taxes and charges.From 817 €, select.
St Louis.825 € per passenger.Departing Wed, 24 Jun, returning Thu, 9 Jul.Return flight with Wizz Air Malta and Frontier Airlines.Outbound indirect flight with Wizz Air Malta, departs from Rome Fiumicino on Wed, 24 Jun, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Thu, 9 Jul, arriving in Rome Fiumicino.Price includes taxes and charges.From 825 €, select.
St Louis.827 € per passenger.Departing Thu, 10 Sep, returning Thu, 24 Sep.Return flight with United.Outbound indirect flight with United, departs from Rome Fiumicino on Thu, 10 Sep, arriving in St Louis.Inbound indirect flight with United, departs from St Louis on Thu, 24 Sep, arriving in Rome Fiumicino.Price includes taxes and charges.From 827 €, select.
St Louis.830 € per passenger.Departing Tue, 25 Aug, returning Tue, 1 Sep.Return flight with United.Outbound indirect flight with United, departs from Rome Fiumicino on Tue, 25 Aug, arriving in St Louis.Inbound indirect flight with United, departs from St Louis on Tue, 1 Sep, arriving in Rome Fiumicino.Price includes taxes and charges.From 830 €, select.
St Louis.845 € per passenger.Departing Sat, 22 Aug, returning Sat, 29 Aug.Return flight with United.Outbound indirect flight with United, departs from Rome Fiumicino on Sat, 22 Aug, arriving in St Louis.Inbound indirect flight with United, departs from St Louis on Sat, 29 Aug, arriving in Rome Fiumicino.Price includes taxes and charges.From 845 €, select.
St Louis.860 € per passenger.Departing Wed, 1 Jul, returning Sat, 11 Jul.Return flight with TAP Air Portugal and Frontier Airlines.Outbound indirect flight with TAP Air Portugal, departs from Rome Fiumicino on Wed, 1 Jul, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Sat, 11 Jul, arriving in Rome Fiumicino.Price includes taxes and charges.From 860 €, select.
St Louis.891 € per passenger.Departing Tue, 28 Jul, returning Fri, 7 Aug.Return flight with Ryanair and Lufthansa.Outbound indirect flight with Ryanair, departs from Rome Fiumicino on Tue, 28 Jul, arriving in St Louis.Inbound indirect flight with Lufthansa, departs from St Louis on Fri, 7 Aug, arriving in Rome Fiumicino.Price includes taxes and charges.From 891 €, select.
St Louis.895 € per passenger.Departing Thu, 6 Aug, returning Fri, 2 Oct.Return flight with Iberia and British Airways.Outbound indirect flight with Iberia, departs from Rome Fiumicino on Thu, 6 Aug, arriving in St Louis.Inbound indirect flight with British Airways, departs from St Louis on Fri, 2 Oct, arriving in Rome Fiumicino.Price includes taxes and charges.From 895 €, select.
St Louis.907 € per passenger.Departing Tue, 28 Jul, returning Fri, 2 Oct.Return flight with Ryanair and Frontier Airlines.Outbound indirect flight with Ryanair, departs from Rome Fiumicino on Tue, 28 Jul, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Fri, 2 Oct, arriving in Rome Fiumicino.Price includes taxes and charges.From 907 €, select.
St Louis.911 € per passenger.Departing Tue, 21 Jul, returning Sun, 13 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Rome Fiumicino on Tue, 21 Jul, arriving in St Louis.Inbound indirect flight with Delta, departs from St Louis on Sun, 13 Sep, arriving in Rome Fiumicino.Price includes taxes and charges.From 911 €, select.

Find the cheapest month to fly from Rome Fiumicino to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Rome Fiumicino to St Louis flights are currently cheapest in May.
May
from 771 €
Jun
from 781 €
Jul
from 860 €
Aug
from 845 €
Sep
from 827 €
Oct
from 810 €
Nov
from 817 €
Dec
Find prices
Jan
Find prices
Feb
from 1.360 €
Mar
Find prices
Apr
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Rome Fiumicino to St Louis: Alternative routes

Compare routes from Rome Fiumicino to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

St Louis

20km from central St Louis
ClosestCheapest
from 771 €
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Belleville

32km from central St Louis
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Sparta Community

69km from central St Louis
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Rome to St Louis: Flight information

The things to know before you go.
Cheapest flight found771 €
Cheapest month to flyMay

Finding cheap flights from Rome Fiumicino to St Louis: Frequently asked questions

The best price we found for a return flight from Rome Fiumicino to St Louis is 771 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Rome Fiumicino to St Louis. But we found flights with one or more stops from 771 €.
As of May 2026, there are no flights flying from Rome Fiumicino to St Louis.
The cheapest month to fly from Rome Fiumicino to St Louis is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Rome Fiumicino Airport to St Louis Airport on Wednesday, 20 May 2026.
No airlines currently offer direct flights between Rome Fiumicino Airport and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, British Airways offers the cheapest flight tickets to St Louis.

Travelling from Leonardo da Vinci-Fiumicino Airport (FCO) to Lambert-St. Louis International Airport (STL): what you need to know

  • St Louis's timezone is UTC-5, which makes St Louis six hours behind Rome.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably catch your FCO to STL flight.

  • Be prepared for bigger queues during popular months like August. Arriving up to four hours ahead of an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from Leonardo da Vinci-Fiumicino Airport to Lambert-St. Louis International Airport, deselect 'Direct flights only.' Then, choose a flight that has a stop long enough to tour the city of your choice. Popular stopovers between FCO and STL include:

    • O'Hare International Airport

    • Frankfurt Airport

    • Detroit Metropolitan Wayne County Airport

How to find the cheapest flights from Leonardo da Vinci-Fiumicino Airport (FCO) to Lambert-St. Louis International Airport (STL)

  • The lowest price we've found for a one-way Leonardo da Vinci-Fiumicino Airport to Lambert-St. Louis International Airport flight is 353 €. A return fare right now is 771 €. Depending on the availability and when you book, these fares can change.

  • Don't leave things to the last moment. You're more likely to find cheap tickets from FCO to STL if you book ahead. Airlines often offer some fantastic early bird rates.

  • The 'Whole month' search tool shows you the cheapest flights from Leonardo da Vinci-Fiumicino Airport to Lambert-St. Louis International Airport across every month. It's an easy way to snap up a bargain if your travel plans are flexible.

  • Landing cheap flights from FCO to STL is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as a new discounted fare appears.

  • Tailor your flights using filters. Choose your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from Leonardo da Vinci-Fiumicino Airport to Lambert-St. Louis International Airport.

Handy information about Leonardo da Vinci-Fiumicino Airport (FCO)

  • Of the departures from Leonardo da Vinci-Fiumicino Airport, 70.57% arrive on time at their destination.

  • To get to Leonardo da Vinci-Fiumicino Airport from central Rome, it'll take around 40 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 32 kilometres from the airport to the city centre.

  • Expect a journey time of about 50 minutes when using public transport.

  • Get your trip off to a stress-free start by staying near FCO. Whether you have an early flight from Leonardo da Vinci-Fiumicino Airport to Lambert-St. Louis International Airport or just don't want to be rushed, these hotels are the answer:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • The street address for STL is 10701 Lambert International Blvd..

  • From Lambert-St. Louis International Airport, St Louis is approximately 26 kilometres away. It takes around 20 minutes to drive to the centre.

  • Travelling to the centre by public transport typically takes 35 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • It's time to work out your trip dates for your flight from Leonardo da Vinci-Fiumicino Airport to Lambert-St. Louis International Airport. July is the busiest month to head to St Louis. If you'd like a more laid-back vibe, go in April.

  • Before locking in your flight from Leonardo da Vinci-Fiumicino Airport to Lambert-St. Louis International Airport, consider the kind of weather you enjoy. July is the warmest month in St Louis, with the temperature ranging from 17ºC (63ºF) to 33ºC (91ºF).

  • January sees average temperatures of between -8ºC (18ºF) and 7ºC (45ºF). Look for cheap tickets from FCO to STL around that time if you'd rather travel in cooler conditions.

Explore more of United States

  • St Louis has plenty going for it, but there are so many other corners of United States you'll want to see. Around 418 kilometres north-east of St Louis, a visit to Chicago will fill your itinerary to the brim. Start with popular sights like Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

  • If you're looking to explore another side of United States, head for Indianapolis, about 370 kilometres east of St Louis. The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo are among the biggest draws.

Plan the rest of your trip from Rome to St Louis

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.