What is the cheapest airline that flies from Rome to Lambert-St Louis?

Aer Lingus, Turkish Airlines, and Lufthansa are the most popular carriers operating from Rome to Lambert-St Louis

When did momondo last update prices for flights from Rome to Lambert-St Louis Airport?

Prices for flights from Rome to Lambert-St Louis Airport were last updated today.

How old do you have to be to fly from Rome to Lambert-St Louis Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rome to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$384 Cheap Flights from Rome to St. Louis in 2025

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Find the cheapest flights from Rome to St. Louis

Round-trip

One-way

Cheap round-trip flights

11:10 am - 9:54 amFCO-STL

29h 44m2 stops

2:50 pm - 12:50 pmSTL-FCO

15h 00m2 stops

$786American Airlines

Find Deal

Thu, Nov 27 - Mon, Dec 1

7:40 am - 11:44 amFCO-STL

35h 04m2 stops

11:51 am - 4:55 pmSTL-FCO

22h 04m2 stops

$793American Airlines

Find Deal

Thu, Nov 27 - Mon, Dec 1

10:20 am - 9:06 pmFCO-STL

17h 46m1 stop

3:59 pm - 10:35 pmSTL-FCO

23h 36m2 stops

$805British Airways

Find Deal

Fri, Sep 12 - Fri, Sep 19

3:45 pm - 8:00 pmFCO-STL

35h 15m2 stops

10:45 am - 9:00 amSTL-FCO

15h 15m1 stop

$807British Airways

Find Deal

Thu, Nov 27 - Mon, Dec 1

1:30 pm - 1:55 pmFCO-STL

31h 25m1 stop

10:00 am - 7:45 amSTL-FCO

14h 45m1 stop

$811United Airlines

Find Deal

Thu, Nov 27 - Mon, Dec 1

9:45 am - 1:55 pmFCO-STL

35h 10m1 stop

10:00 am - 7:45 amSTL-FCO

14h 45m1 stop

$817United Airlines

Find Deal

Thu, Nov 27 - Mon, Dec 1

12:00 pm - 9:12 amFCO-STL

28h 12m2 stops

2:50 pm - 3:30 pmSTL-FCO

17h 40m2 stops

$837Iberia

Find Deal

Sun, Sep 21 - Mon, Nov 24

6:05 am - 4:48 pmFCO-STL

17h 43m2 stops

11:51 am - 7:55 amSTL-FCO

13h 04m1 stop

$852Delta

Find Deal

Sun, Sep 21 - Mon, Nov 24

10:00 am - 11:14 pmFCO-STL

20h 14m2 stops

6:49 pm - 5:30 pmSTL-FCO

15h 41m2 stops

$975Delta

Find Deal

Thu, Aug 14 - Mon, Aug 18

6:25 am - 6:23 pmFCO-STL

18h 58m2 stops

10:08 am - 8:05 amSTL-FCO

14h 57m1 stop

$1,293Iberia

Find Deal

Wed, Aug 13 - Sun, Aug 17

United Airlines flights from Rome to St. Louis

Our best United Airlines deals on Rome to St. Louis flight tickets

United Airlines

Nov 27

FCO1:30 pmRome Fiumicino

31h 25m

1 stop

STL1:55 pmLambert-St Louis

Dec 1

STL10:00 amLambert-St Louis

14h 45m

1 stop

FCO7:45 amRome Fiumicino

$811

Find similar

United Airlines

Nov 27

FCO9:45 amRome Fiumicino

35h 10m

1 stop

STL1:55 pmLambert-St Louis

Dec 1

STL10:00 amLambert-St Louis

14h 45m

1 stop

FCO7:45 amRome Fiumicino

$817

Find similar

United Airlines

Aug 9

FCO3:20 pmRome Fiumicino

25h 39m

1 stop

STL9:59 amLambert-St Louis

Aug 29

STL3:20 pmLambert-St Louis

18h 45m

2 stops

FCO5:05 pmRome Fiumicino

$1,042

Find similar

American Airlines flights from Rome to St. Louis

Our best American Airlines deals on Rome to St. Louis flight tickets

American Airlines

Nov 27

FCO11:10 amRome Fiumicino

29h 44m

2 stops

STL9:54 amLambert-St Louis

Dec 1

STL2:50 pmLambert-St Louis

15h 00m

2 stops

FCO12:50 pmRome Fiumicino

$786

Find similar

American Airlines

Nov 27

FCO7:40 amRome Fiumicino

35h 04m

2 stops

STL11:44 amLambert-St Louis

Dec 1

STL11:51 amLambert-St Louis

22h 04m

2 stops

FCO4:55 pmRome Fiumicino

$793

Find similar

American Airlines

Nov 27

FCO11:10 amRome Fiumicino

31h 34m

2 stops

STL11:44 amLambert-St Louis

Dec 1

STL2:50 pmLambert-St Louis

15h 00m

2 stops

FCO12:50 pmRome Fiumicino

$798

Find similar

Fly from

Fly to

Route

Depart

Return

Price

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 11/27

11:10 am-9:54 am

2 stops29h 44m

Lambert-St Louis

Mon 12/1

2:50 pm-12:50 pm

2 stops15h 00m

$786

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 11/27

7:40 am-11:44 am

2 stops35h 04m

Lambert-St Louis

Mon 12/1

11:51 am-4:55 pm

2 stops22h 04m

$793

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Fri 9/12

10:20 am-9:06 pm

1 stop17h 46m

Lambert-St Louis

Fri 9/19

3:59 pm-10:35 pm

2 stops23h 36m

$805

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 11/27

3:45 pm-8:00 pm

2 stops35h 15m

Lambert-St Louis

Mon 12/1

10:45 am-9:00 am

1 stop15h 15m

$807

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 11/27

1:30 pm-1:55 pm

1 stop31h 25m

Lambert-St Louis

Mon 12/1

10:00 am-7:45 am

1 stop14h 45m

$811

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 11/27

9:45 am-1:55 pm

1 stop35h 10m

Lambert-St Louis

Mon 12/1

10:00 am-7:45 am

1 stop14h 45m

$817

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Sun 9/21

12:00 pm-9:12 am

2 stops28h 12m

Lambert-St Louis

Mon 11/24

2:50 pm-3:30 pm

2 stops17h 40m

$837

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Sun 9/21

6:05 am-4:48 pm

2 stops17h 43m

Lambert-St Louis

Mon 11/24

11:51 am-7:55 am

1 stop13h 04m

$852

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 8/14

10:00 am-11:14 pm

2 stops20h 14m

Lambert-St Louis

Mon 8/18

6:49 pm-5:30 pm

2 stops15h 41m

$975

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 8/13

6:25 am-6:23 pm

2 stops18h 58m

Lambert-St Louis

Sun 8/17

10:08 am-8:05 am

1 stop14h 57m

$1,293

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Rome to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $786. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $947. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Rome at noon is the least expensive time of day to depart. momondo users have found prices as low as $929 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $947 per ticket.

Can stopping save me money on Rome to St. Louis flights?

You could potentially save up to 4% on your flight if you consider stops on a Rome to St. Louis flight.

When to book flights from Rome to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Rome to St. Louis according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Rome to St. Louis (ROM to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rome to St. Louis

Best Price Found	$384
Fastest flight time	13h 20m
Direct flights	None
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Rome in the past 72 hours is $384. The best round-trip flight deal from Rome to St. Louis found on momondo in the last 72 hours is $786.

The fastest flight from Rome to St. Louis takes 13h 20m

There are no direct flights from Rome to St. Louis. Popular non-direct route for this connection is Rome Fiumicino Airport - Lambert-St Louis Airport.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

How far is Rome to Lambert-St Louis by plane?
The distance between Rome and Lambert-St Louis is about 5053.3 mi. 13h 20m is a normal flight duration for this route.
When did momondo last update prices for flights from Rome to Lambert-St Louis Airport?
Prices for flights from Rome to Lambert-St Louis Airport were last updated today.
How old do you have to be to fly from Rome to Lambert-St Louis Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rome to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Rome to St. Louis?
Based on momondo bookings for flights between Rome and St. Louis, the leading airline is British Airways, making up 100% of the total bookings.

St. Charles

Chesterfield

Hermann

Fairview Heights

Maryland Heights

Florissant

Fenton

Collinsville

O'Fallon

Alton

St. Peters

Farmington

Wentzville

Festus

Glencoe

Eureka

Edwardsville

Clayton

Shrewsbury

Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Rome to St. Louis?

Finding the right flight to St. Louis from Rome is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Rome to St. Louis with flexible booking policies on momondo?

All flight searches from Rome to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Rome to St. Louis?

momondo helps you find the best flight between Rome and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Rome to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis from Rome are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.