Cheap Flights from St Louis to Rome

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Flight deals from St Louis to Rome

Looking for a cheap last-minute deal or the best return flight from St Louis to Rome? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Rome

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Rome flights are currently cheapest in April.

Alternative St Louis to Rome routes

Looking for the cheapest, fastest or easiest route from St Louis to Rome? You could fly into the following airports instead.

St Louis to Rome: Flight information

The things to know before you go.
Cheapest flight found$1,005
Cheapest month to flyApril

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

There are 2 airports in Rome: Rome Ciampino and Rome Fiumicino.
The best price we found for a return flight from St Louis to Rome is $1,005. 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. But we found flights with one or more stops from $1,005.
As of February 2026, there are no flights flying from St Louis to Rome.
The cheapest month to fly from St Louis to Rome is usually April.
If you're flying from St Louis Airport, the cheapest airport near Rome is Rome Fiumicino – which is 22.9 km away from the centre of Rome. We've found flights into this airport from $1,005.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Rome on Tuesday, 14 April 2026.
No airlines currently offer direct flights between St Louis Airport and Rome. 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 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.
In February, the average temperature is usually around 8°C. August is typically the warmest month in Rome, when it usually averages around 30°C. You can expect the least rain in July. The coldest month is January, with temperatures averaging 5°C. The rainiest month is November.
Currently, KLM offers the cheapest flight tickets to Rome.

Travelling from Lambert-St. Louis International Airport (STL) to Rome: what you need to know

  • Rome is six hours ahead of St Louis, where Lambert-St. Louis International Airport is located. Rome runs on the UTC+1 timezone.

  • For a relaxed start to your STL to Rome flight, allow plenty of time for things like check-in and baggage drop. Arriving two hours before international departures and one hour before domestic flights is the general rule.

  • If you're travelling during a major holiday or another peak period, allow extra time. A good rule is two hours before domestic flights and up to four hours before international departures. Check-in and security lines will be longer.

  • Think about adding a stopover to potentially land a cheaper flight ticket from STL to Rome. Just uncheck 'Direct flights only' during your search. Take a detour (and maybe pocket some savings) by stopping at one of these connecting airports:

    • O'Hare International Airport (ORD)

    • Pearson International Airport (YYZ)

    • Washington Dulles International Airport (IAD)

  • STL is about 16 kilometres from central St Louis. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 20 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the trip time to be around 35 minutes.

  • Booked an early flight from Lambert-St. Louis International Airport to Rome? Avoid the hassle of rushing to the airport (and sneak in some extra snooze time) by choosing one of these stays close to STL:

  • Of the flights that depart from Lambert-St. Louis International Airport, 78.04% arrive as scheduled at their destination.

  • STL is located at 10701 Lambert International Blvd..

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Rome

  • $665 is the cheapest price we've found for a one-way Lambert-St. Louis International Airport to Rome flight. A return flight ticket right now is $1,005. Depending on the availability and when you book, these fares may change.

  • Don't leave everything to the last minute. You're more likely to land cheap flights from STL to Rome if you book in advance. Airlines often offer some fantastic early bird discounts.

  • Finding cheap tickets from Lambert-St. Louis International Airport to Rome is more likely if you're flexible with your trip dates. Use the 'Whole month' tool to access the lowest fares across each month and walk away with an awesome deal.

  • There's no need to check back constantly to find out if fares have dropped when you set up a Price Alert. We'll notify you when there's an even bigger deal on cheap flights from STL to Rome.

  • Tailor your flights with filters. Choose your arrival and departure times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from Lambert-St. Louis International Airport to Rome.

Airports in Rome

Leonardo da Vinci-Fiumicino Airport (FCO)

  • The distance from Leonardo da Vinci-Fiumicino Airport (FCO) to central Rome is roughly 32 kilometres. It'll take you about 40 minutes to get to the centre driving.

  • If you're taking public transport, expect a journey time of around 50 minutes.

  • The last thing you need is a long journey to your hotel if you're landing late on a flight from Lambert-St. Louis International Airport to Rome. Book one of these accommodation options near FCO instead:

  • Go where the road takes you with a Leonardo da Vinci-Fiumicino Airport rental car. Pick up a set of wheels from Surprice, RentSmart24 or Noleggiare and experience more of Rome and beyond.

  • Get the best deal by booking your ride from Leonardo da Vinci-Fiumicino Airport about three weeks in advance of your flight from STL to Rome.

Ciampino-G. B. Pastine International Airport (CIA)

  • Ciampino-G. B. Pastine International Airport (CIA) is around 18 kilometres from central Rome. Following your flight from Lambert-St. Louis International Airport to Rome, it'll take you around 40 minutes to get to the heart of the city in a cab or ride-share.

  • You can expect the journey to take roughly 1 hour 40 minutes on public transport.

  • Following your STL to Rome flight, rest your head at a hotel near CIA. These are some great options that'll help you sink into relaxation mode:

  • Forget about public transport timetables or waiting forever for a cab. Pick up a Ciampino-G. B. Pastine International Airport rental car and take your journey in whatever direction you like. Compare availability and rates from RentSmart24, Sicily by Car and Surprice.

  • Get the lowest price by reserving your ride from CIA one week in advance. You can also expect to have a wider range of vehicles.

Best time to go to Rome

  • Visit Rome during peak season if you want a bustling atmosphere, but remember that prices tend to be higher. Alternatively, book flights from Lambert-St. Louis International Airport to Rome during low season when prices are cheaper and crowds are smaller.

  • Before locking in your Lambert-St. Louis International Airport to Rome flight ticket, think about the kind of weather you prefer. August is the warmest month in Rome, with temperatures ranging from 20ºC to 33ºC.

  • January sees average temperatures of between 2ºC and 14ºC. Search for a cheap ticket from STL to Rome around that time if you like travelling in cooler conditions.

More about Rome

  • Start your Rome trip right by choosing the ideal place to stay. After booking your flight from Lambert-St. Louis International Airport to Rome, explore our selection of hotels including:

  • Every great holiday has to include a little sightseeing. Trevi Fountain, Colosseum and Roman Forum are must-visits when exploring Rome.

Explore more of Italy

  • Milan is just one of the many places in Italy waiting to be explored after you've seen Rome. Around 483 kilometres away to the north-west, popular attractions include Grande Museo del Duomo di Milano, Milan Cathedral and The Last Supper Museum.

  • Around 193 kilometres south-east of Rome, Naples is another favourite stop in Italy. Get a taste of what this destination has to offer at National Archaeological Museum, Castel dell'Ovo and Royal Palace of Naples.

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