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584 € Cheap Flights from St Louis to Rome

Compare St Louis to Rome flight deals

Find the cheapest month or even day of the year to fly 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 Airport to Rome? If you want to travel next month, return fares start from 645 €. Find the lowest prices on one-way and return tickets right here.
Rome.584 € per passenger.Departing Wed, 21 Oct, returning Tue, 3 Nov.Return flight with Frontier Airlines and Wizz Air Malta.Outbound indirect flight with Frontier Airlines, departs from St Louis on Wed, 21 Oct, arriving in Rome Fiumicino.Inbound indirect flight with Wizz Air Malta, departs from Rome Fiumicino on Tue, 3 Nov, arriving in St Louis.Price includes taxes and charges.From 584 €, select.
Rome.600 € per passenger.Departing Mon, 5 Oct, returning Mon, 12 Oct.Return flight with Frontier Airlines and Ryanair.Outbound indirect flight with Frontier Airlines, departs from St Louis on Mon, 5 Oct, arriving in Rome Fiumicino.Inbound indirect flight with Ryanair, departs from Rome Ciampino on Mon, 12 Oct, arriving in St Louis.Price includes taxes and charges.From 600 €, select.
Rome.645 € per passenger.Departing Sun, 9 Aug, returning Tue, 25 Aug.Return flight with Frontier Airlines and Norse Atlantic Airways.Outbound indirect flight with Frontier Airlines, departs from St Louis on Sun, 9 Aug, arriving in Rome Fiumicino.Inbound indirect flight with Norse Atlantic Airways, departs from Rome Fiumicino on Tue, 25 Aug, arriving in St Louis.Price includes taxes and charges.From 645 €, select.
Rome.673 € per passenger.Departing Sat, 26 Sep, returning Wed, 30 Sep.Return flight with Frontier Airlines and Ryanair.Outbound indirect flight with Frontier Airlines, departs from St Louis on Sat, 26 Sep, arriving in Rome Fiumicino.Inbound indirect flight with Ryanair, departs from Rome Ciampino on Wed, 30 Sep, arriving in St Louis.Price includes taxes and charges.From 673 €, select.
Rome.679 € per passenger.Departing Sun, 15 Nov, returning Wed, 18 Nov.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sun, 15 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 679 €, select.
Rome.687 € per passenger.Departing Tue, 23 Mar, returning Thu, 1 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Tue, 23 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 687 €, select.
Rome.688 € per passenger.Departing Wed, 24 Mar, returning Tue, 30 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Wed, 24 Mar, arriving in Rome Fiumicino.Inbound indirect flight with Delta, departs from Rome Fiumicino on Tue, 30 Mar, arriving in St Louis.Price includes taxes and charges.From 688 €, select.
Rome.722 € per passenger.Departing Tue, 16 Feb, returning Sun, 14 Mar.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 16 Feb, arriving in Rome Fiumicino.Inbound indirect flight with United, departs from Rome Fiumicino on Sun, 14 Mar, arriving in St Louis.Price includes taxes and charges.From 722 €, select.
Rome.723 € per passenger.Departing Sun, 15 Nov, returning Sun, 13 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sun, 15 Nov, arriving in Rome Fiumicino.Inbound indirect flight with United, departs from Rome Fiumicino on Sun, 13 Dec, arriving in St Louis.Price includes taxes and charges.From 723 €, select.
Rome.725 € per passenger.Departing Mon, 31 Aug, returning Tue, 8 Sep.Return flight with Frontier Airlines and Vueling Airlines.Outbound indirect flight with Frontier Airlines, departs from St Louis on Mon, 31 Aug, arriving in Rome Fiumicino.Inbound indirect flight with Vueling Airlines, departs from Rome Fiumicino on Tue, 8 Sep, arriving in St Louis.Price includes taxes and charges.From 725 €, select.
Rome.737 € per passenger.Departing Mon, 20 Jul, returning Mon, 24 Aug.Return flight with Frontier Airlines and Ryanair.Outbound indirect flight with Frontier Airlines, departs from St Louis on Mon, 20 Jul, arriving in Rome Fiumicino.Inbound indirect flight with Ryanair, departs from Rome Ciampino on Mon, 24 Aug, arriving in St Louis.Price includes taxes and charges.From 737 €, select.
Rome.744 € per passenger.Departing Thu, 24 Sep, returning Sat, 3 Oct.Return flight with Frontier Airlines and Ryanair.Outbound indirect flight with Frontier Airlines, departs from St Louis on Thu, 24 Sep, arriving in Rome Fiumicino.Inbound indirect flight with Ryanair, departs from Rome Ciampino on Sat, 3 Oct, arriving in St Louis.Price includes taxes and charges.From 744 €, select.
Rome.749 € per passenger.Departing Tue, 14 Jul, returning Fri, 17 Jul.Return flight with Frontier Airlines and Norse Atlantic Airways.Outbound indirect flight with Frontier Airlines, departs from St Louis on Tue, 14 Jul, arriving in Rome Fiumicino.Inbound indirect flight with Norse Atlantic Airways, departs from Rome Fiumicino on Fri, 17 Jul, arriving in St Louis.Price includes taxes and charges.From 749 €, select.
Rome.759 € per passenger.Departing Tue, 29 Dec, returning Tue, 5 Jan.Return flight with Air Canada and SWISS.Outbound indirect flight with Air Canada, departs from St Louis on Tue, 29 Dec, arriving in Rome Fiumicino.Inbound indirect flight with SWISS, departs from Rome Fiumicino on Tue, 5 Jan, arriving in St Louis.Price includes taxes and charges.From 759 €, select.
Rome.780 € per passenger.Departing Fri, 11 Dec, returning Mon, 14 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Fri, 11 Dec, arriving in Rome Fiumicino.Inbound indirect flight with Delta, departs from Rome Fiumicino on Mon, 14 Dec, arriving in St Louis.Price includes taxes and charges.From 780 €, select.
Rome.780 € per passenger.Departing Fri, 15 Jan, returning Sat, 23 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Fri, 15 Jan, arriving in Rome Fiumicino.Inbound indirect flight with Delta, departs from Rome Fiumicino on Sat, 23 Jan, arriving in St Louis.Price includes taxes and charges.From 780 €, select.

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 October.
Jul
from 749 €
Aug
from 645 €
Sep
from 673 €
Oct
from 600 €
Nov
from 679 €
Dec
from 780 €
Jan
from 780 €
Feb
from 781 €
Mar
from 688 €
Apr
Find prices
May
from 804 €
Jun
from 1.054 €

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.

Rome Ciampino

13km from central Rome
Closest
from 607 €
Search flights

Rome Fiumicino

23km from central Rome
Cheapest
from 584 €
Search flights

St Louis to Rome: Flight information

The things to know before you go.
Cheapest flight found584 €
Cheapest month to flyOctober

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 584 €. 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 584 €.
As of July 2026, there are no flights flying from St Louis to Rome.
The cheapest month to fly from St Louis to Rome is usually October.
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 584 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Rome on Wednesday, 21 October 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 July, the average temperature is usually around 25°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, Frontier Airlines offers the cheapest flight tickets to Rome.

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

  • St Louis Lambert International Airport is located in St Louis. Following the UTC+1 timezone, Rome is seven hours ahead of St Louis.

  • For stress-free travel, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to catch your STL to Rome flight.

  • You can expect longer queues during popular months like July. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a good idea.

  • Think about adding a stopover to potentially land a cheaper plane ticket from STL to Rome. All you need to do is uncheck 'Direct flights only' during your search. Take a break (and maybe save some cash) by stopping at one of these connection hubs:

    • Chicago O'Hare International Airport (ORD)

    • Toronto Pearson International Airport (YYZ)

    • Washington Dulles International Airport (IAD)

  • STL is around 16 kilometres from central St Louis. If you're ride-sharing, driving or catching a taxi from the centre, it'll take 25 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the travel time to be around 30 minutes.

  • In search of a hotel near STL? If you've booked an early flight from St Louis Lambert International Airport to Rome, these stays put the terminal practically at your doorstep:

  • 76% of flights departing from St Louis Lambert International Airport arrive at their destination on time.

  • STL's address is 10701 Lambert International Blvd..

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

  • The lowest price we've seen for a one-way St Louis Lambert International Airport to Rome flight is 242 €. The cheapest price for a return flight is 584 €. Bear in mind fares can change due to demand at the time of booking.

  • Booking ahead of time is often the key to scoring a cheap flight from STL to Rome. Airlines adjust prices based on demand, so the closer you get to departure, the more you'll likely spend on your ticket.

  • The 'Whole month' tool will show you the cheapest tickets from St Louis Lambert International Airport to Rome throughout the entire month. It's a great way to find a bargain if your travel dates are flexible.

  • You don't need to check back constantly to see if fares have dropped when you set up a Price Alert. We'll notify you when there's an updated deal for cheap flights from STL to Rome.

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

Airports in Rome

Rome Leonardo da Vinci Fiumicino Airport (FCO)

  • Rome Leonardo da Vinci Fiumicino Airport (FCO) to central Rome takes about 40 minutes by car. The centre is roughly 32 kilometres away.

  • When travelling by public transport, expect a journey time of about 30 minutes.

  • If you're coming in on a late flight from St Louis Lambert International Airport to Rome, nothing beats the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and snoozing not long after at one of these accommodation options near FCO:

  • Reserving your vehicle from Rome Leonardo da Vinci Fiumicino Airport about three weeks in advance of your flight from STL to Rome can help you get the lowest rate.

Rome Ciampino Airport (CIA)

  • Rome Ciampino Airport (CIA) is about 14 kilometres from the centre of Rome. Once you've disembarked your flight from St Louis Lambert International Airport to Rome, it'll take you around 20 minutes to reach the heart of the city in a taxi or ride-share.

  • If you travel by public transport, you'll get to the city centre in 20 minutes or so.

  • Place the 'Do not disturb' sign on your door and rest at a hotel near CIA. Here are a few options where you can check in after your STL to Rome flight:

  • Secure your first choice, not your last resort. Booking your ride from CIA one week in advance often means lower prices and a wider range of vehicles.

Best time to go to Rome

  • It's time to figure out your dates for your flight from St Louis Lambert International Airport to Rome. August is the busiest month for a trip to Rome. If you prefer a quieter vibe, go in December.

  • Book a St Louis Lambert International Airport to Rome plane ticket with a departure in August if you're eager to explore the city during its warmest month. Expect temperatures to range from 20ºC (68ºF) to 33ºC (91ºF).

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

More about Rome

  • After booking your flight from St Louis Lambert International Airport to Rome, find a hotel that keeps you close to what you want to see. Make one of these options your base for exploring Rome:

  • St. Peter's Basilica and Vatican Museums are just two of the leading attractions to add to your Rome to-do list. Keep the momentum going by heading to Saint Peter's Square.

Explore more of Italy

  • You've visited Rome, now it's time to explore other corners of Italy. Journey about 483 kilometres northwest to Milan to check off its leading attractions. From Leonardo's Last Supper Museum to Teatro alla Scala and Milan Cathedral, there's plenty to keep you busy.

  • If there's time to check out another major destination in Italy, consider Naples, about 193 kilometres southeast of Rome. Piazza del Plebiscito, Naples National Archaeological Museum and Gulf of Naples are among the biggest draws.

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.