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580 € Cheap Flights from St Louis to Rome Fiumicino

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      Travellers and cabin class, 1 Adult, Economy

      Compare St Louis to Rome Fiumicino flight deals

      Find the cheapest month or even day of the year to fly to Rome Fiumicino

      Book the best Rome Fiumicino fare with no extra fees

      Flight deals from St Louis to Rome Fiumicino

      Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Rome Fiumicino Airport? If you want to travel next month, return fares start from 823 €. Find the lowest prices on one-way and return tickets right here.
      Rome.580 € per passenger.Departing Mon, 19 Oct, returning Wed, 4 Nov.Return flight with Frontier Airlines and Wizz Air Malta.Outbound indirect flight with Frontier Airlines, departs from St Louis on Mon, 19 Oct, arriving in Rome Fiumicino.Inbound indirect flight with Wizz Air Malta, departs from Rome Fiumicino on Wed, 4 Nov, arriving in St Louis.Price includes taxes and charges.From 580 €, select.
      Rome.628 € per passenger.Departing Mon, 9 Nov, returning Wed, 18 Nov.Return flight with United.Outbound indirect flight with United, departs from St Louis on Mon, 9 Nov, arriving in Rome Fiumicino.Inbound indirect flight with United, departs from Rome Fiumicino on Wed, 18 Nov, arriving in St Louis.Price includes taxes and charges.From 628 €, select.
      Rome.646 € per passenger.Departing Tue, 19 Jan, returning Tue, 26 Jan.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 19 Jan, arriving in Rome Fiumicino.Inbound indirect flight with United, departs from Rome Fiumicino on Tue, 26 Jan, arriving in St Louis.Price includes taxes and charges.From 646 €, select.
      Rome.647 € per passenger.Departing Sun, 13 Dec, returning Tue, 22 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sun, 13 Dec, arriving in Rome Fiumicino.Inbound indirect flight with United, departs from Rome Fiumicino on Tue, 22 Dec, arriving in St Louis.Price includes taxes and charges.From 647 €, select.
      Rome.674 € per passenger.Departing Sun, 29 Nov, returning Sun, 6 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sun, 29 Nov, arriving in Rome Fiumicino.Inbound indirect flight with United, departs from Rome Fiumicino on Sun, 6 Dec, arriving in St Louis.Price includes taxes and charges.From 674 €, select.
      Rome.677 € per passenger.Departing Mon, 28 Dec, returning Fri, 15 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Mon, 28 Dec, arriving in Rome Fiumicino.Inbound indirect flight with Delta, departs from Rome Fiumicino on Fri, 15 Jan, arriving in St Louis.Price includes taxes and charges.From 677 €, select.
      Rome.680 € per passenger.Departing Sun, 7 Mar, returning Thu, 11 Mar.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sun, 7 Mar, arriving in Rome Fiumicino.Inbound indirect flight with United, departs from Rome Fiumicino on Thu, 11 Mar, arriving in St Louis.Price includes taxes and charges.From 680 €, select.
      Rome.689 € per passenger.Departing Mon, 25 Jan, returning Mon, 1 Feb.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from St Louis on Mon, 25 Jan, arriving in Rome Fiumicino.Inbound indirect flight with Lufthansa, departs from Rome Fiumicino on Mon, 1 Feb, arriving in St Louis.Price includes taxes and charges.From 689 €, select.
      Rome.690 € per passenger.Departing Wed, 17 Mar, returning Thu, 1 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Wed, 17 Mar, arriving in Rome Fiumicino.Inbound indirect flight with Delta, departs from Rome Fiumicino on Thu, 1 Apr, arriving in St Louis.Price includes taxes and charges.From 690 €, select.
      Rome.724 € per passenger.Departing Thu, 11 Feb, returning Thu, 18 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Thu, 11 Feb, arriving in Rome Fiumicino.Inbound indirect flight with Delta, departs from Rome Fiumicino on Thu, 18 Feb, arriving in St Louis.Price includes taxes and charges.From 724 €, select.
      Rome.724 € per passenger.Departing Wed, 30 Sep, returning Tue, 6 Oct.Return flight with Frontier Airlines and TAP Air Portugal.Outbound indirect flight with Frontier Airlines, departs from St Louis on Wed, 30 Sep, arriving in Rome Fiumicino.Inbound indirect flight with TAP Air Portugal, departs from Rome Fiumicino on Tue, 6 Oct, arriving in St Louis.Price includes taxes and charges.From 724 €, select.
      Rome.725 € per passenger.Departing Wed, 14 Oct, returning Thu, 22 Oct.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from St Louis on Wed, 14 Oct, arriving in Rome Fiumicino.Inbound indirect flight with Lufthansa, departs from Rome Fiumicino on Thu, 22 Oct, arriving in St Louis.Price includes taxes and charges.From 725 €, select.
      Rome.731 € per passenger.Departing Fri, 25 Sep, returning Mon, 9 Nov.Return flight with Frontier Airlines and TAP Air Portugal.Outbound indirect flight with Frontier Airlines, departs from St Louis on Fri, 25 Sep, arriving in Rome Fiumicino.Inbound indirect flight with TAP Air Portugal, departs from Rome Fiumicino on Mon, 9 Nov, arriving in St Louis.Price includes taxes and charges.From 731 €, select.
      Rome.735 € per passenger.Departing Mon, 5 Apr, returning Thu, 15 Apr.Return flight with United.Outbound indirect flight with United, departs from St Louis on Mon, 5 Apr, arriving in Rome Fiumicino.Inbound indirect flight with United, departs from Rome Fiumicino on Thu, 15 Apr, arriving in St Louis.Price includes taxes and charges.From 735 €, select.
      Rome.787 € per passenger.Departing Mon, 3 May, returning Fri, 14 May.Return flight with United.Outbound indirect flight with United, departs from St Louis on Mon, 3 May, arriving in Rome Fiumicino.Inbound indirect flight with United, departs from Rome Fiumicino on Fri, 14 May, arriving in St Louis.Price includes taxes and charges.From 787 €, select.
      Rome.823 € per passenger.Departing Tue, 22 Sep, returning Tue, 29 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Louis on Tue, 22 Sep, arriving in Rome Fiumicino.Inbound indirect flight with Air Canada, departs from Rome Fiumicino on Tue, 29 Sep, arriving in St Louis.Price includes taxes and charges.From 823 €, select.

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

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Rome Fiumicino flights are currently cheapest in November.
      Aug
      Find prices
      Sep
      from 823 €
      Oct
      from 725 €
      Nov
      from 628 €
      Dec
      from 647 €
      Jan
      from 646 €
      Feb
      from 724 €
      Mar
      from 680 €
      Apr
      from 735 €
      May
      from 787 €
      Jun
      from 1.008 €
      Jul
      from 969 €

      St Louis to Rome Fiumicino: Alternative routes

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

      Rome Ciampino

      13km from central Rome
      Closest
      from 678 €
      Search flights

      Rome Fiumicino

      23km from central Rome
      Cheapest
      from 580 €
      Search flights

      St Louis to Rome: Flight information

      The things to know before you go.
      Cheapest flight found580 €
      Cheapest month to flyOctober

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

      The best price we found for a return flight from St Louis to Rome Fiumicino is 580 €. 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 St Louis to Rome Fiumicino. But we found flights with one or more stops from 580 €.
      As of August 2026, there are no flights flying from St Louis to Rome Fiumicino.
      The cheapest month to fly from St Louis to Rome Fiumicino is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Rome Fiumicino Airport on Monday, 19 October 2026.
      No airlines currently offer direct flights between St Louis Airport and Rome Fiumicino 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 Rome Fiumicino 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 Rome is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Frontier Airlines offers the cheapest flight tickets to Rome Fiumicino.

      Flying from St Louis Airport (STL) to Rome Fiumicino Airport (FCO): what you need to know

      • The timezone in Rome is UTC+1, which is seven hours ahead of St Louis.

      • Leave plenty of time to make your STL to FCO flight. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

      • You can expect longer lines during popular months like July. Arriving up to four hours in advance for international flights and two hours for a domestic departure will give you ample time for security and boarding.

      • If you want to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from St Louis Airport to Rome Fiumicino Airport. These are the top stopovers between STL and FCO:

        • Chicago O'Hare International Airport

        • Toronto Pearson International Airport

        • Washington Dulles Airport

      How to find the cheapest flights from St Louis Airport (STL) to Rome Fiumicino Airport (FCO)

      • 298 € is currently the best price for a one-way St Louis Airport to Rome Fiumicino Airport flight. A return flight starts from 580 €. These prices can change depending on demand.

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

      • If you're willing to be flexible with your travel plans, use the 'Whole month' tool. It'll find the cheapest price in each month when looking for a flight from St Louis Airport to Rome Fiumicino Airport.

      • There's no need to check every day to find out if fares have dropped when you create a Price Alert. We'll update you the moment there's a new deal on cheap flights from STL to FCO.

      • Discover the perfect flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from St Louis Airport to Rome Fiumicino Airport, use the 'Sort by' tool. You can also filter results by departure and arrival times, airline, and number of stops.

      Handy information about St Louis Airport (STL)

      Arriving at Rome Fiumicino Airport (FCO)

      • If you're getting in on a late St Louis Airport to Rome Fiumicino Airport flight, few things beat the convenience of being near the terminal. Grab your suitcases from the carousel and then be showered and sleeping not long after at one of these accommodation options near FCO:

      • Say yes to new adventures by picking up a Rome Fiumicino Airport rental car. Grab your wheels from Surprice, RentSmart24 or Noleggiare and explore beyond Rome's main sights.

      • For the lowest price, reserve your vehicle from Rome Fiumicino Airport about three weeks in advance.

      When to fly to Rome Fiumicino Airport (FCO)

      • It's time to choose your trip dates for your flight from St Louis Airport to Rome Fiumicino Airport. August is the busiest month to head to Rome. If you'd like a more low-key vibe, go in March.

      • When booking your flight from St Louis Airport to Rome Fiumicino Airport, consider the kind of weather you like. August is the warmest month in Rome, with the temperature ranging from 20ºC (68ºF) to 33ºC (91ºF).

      • Search for cheap tickets from STL to FCO in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 2ºC (36ºF) and 14ºC (57ºF) on average.

      Explore more of Italy

      • Milan is just one of the many places in Italy waiting to be explored after you've experienced Rome. Around 483 kilometres away to the north-west, check out popular attractions including Leonardo's Last Supper Museum, Milan Cathedral and Teatro alla Scala.

      • Naples is another must-experience destination in Italy and is around 193 kilometres south-east of Rome. No journey is complete without seeing Piazza del Plebiscito, Naples National Archaeological Museum and Gulf of Naples.

      Plan the rest of your trip from St Louis to Rome

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.