How long does it take to fly to St. Louis?

Flight times from Italy to St. Louis vary, but if you’re flying out of Rome and flying into St. Louis (one of the most popular routes), then the duration is 14h 08m on average. Another popular route from Italy to St. Louis is flying from Milan to St. Louis, which will take roughly 14h 42m. Keep in mind that layovers or delays could extend your travel time.

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

American Airlines, British Airways, and Aer Lingus are the most popular carriers operating from Italy to Lambert-St Louis

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

Prices for flights from Italy to Lambert-St Louis Airport refresh daily.

How old do you have to be to fly from Italy 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 Italy 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.

$446 Cheap Flights from Italy to St. Louis in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Italy to St. Louis

Round-trip

One-way

Recent round-trip flight deals from Italy to St. Louis

11:30 am - 10:22 pmMXP-STL

17h 52m2 stops

11:20 am - 7:30 amSTL-MXP

37h 10m2 stops

$653United Airlines

Find Deal

Sat, Nov 8 - Sat, Nov 15

11:30 am - 10:22 pmMXP-STL

17h 52m2 stops

5:24 pm - 1:05 pmSTL-MXP

12h 41m1 stop

$657United Airlines

Find Deal

Sat, Nov 8 - Sat, Nov 15

11:35 am - 3:29 pmMXP-STL

34h 54m2 stops

4:05 pm - 1:00 pmSTL-MXP

14h 55m2 stops

$683Air Canada

Find Deal

Thu, Mar 5 - Sat, Mar 28

12:15 pm - 7:57 pmMXP-STL

14h 42m1 stop

9:15 am - 10:00 amSTL-MXP

17h 45m2 stops

$685Air Canada

Find Deal

Thu, Oct 9 - Mon, Oct 13

10:25 am - 3:29 pmFLR-STL

36h 04m2 stops

4:05 pm - 6:30 pmSTL-FLR

43h 25m2 stops

$689Multiple Airlines

Find Deal

Fri, Nov 28 - Tue, Dec 2

1:05 pm - 3:29 pmMXP-STL

33h 24m2 stops

4:05 pm - 2:00 pmSTL-MXP

14h 55m2 stops

$696Multiple Airlines

Find Deal

Thu, Mar 5 - Sun, Mar 29

6:25 am - 10:58 pmBLQ-STL

23h 33m2 stops

12:44 pm - 12:40 pmSTL-BLQ

16h 56m2 stops

$701Lufthansa

Find Deal

Thu, Feb 5 - Sun, Feb 8

6:25 am - 11:59 pmBLQ-STL

24h 34m2 stops

1:15 pm - 12:40 pmSTL-BLQ

16h 25m2 stops

$704Lufthansa

Find Deal

Thu, Feb 5 - Sun, Feb 8

1:10 pm - 8:18 pmFCO-STL

14h 08m1 stop

6:00 pm - 10:50 pmSTL-FCO

21h 50m2 stops

$738British Airways

Find Deal

Thu, Feb 26 - Sun, May 3

1:10 pm - 8:18 pmFCO-STL

14h 08m1 stop

11:14 am - 3:00 pmSTL-FCO

20h 46m2 stops

$740British Airways

Find Deal

Fri, Feb 27 - Tue, Apr 28

United Airlines flights from Italy to St. Louis

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

United Airlines

Nov 8

MXP11:30 amMilan Malpensa

17h 52m

2 stops

STL10:22 pmLambert-St Louis

Nov 15

STL11:20 amLambert-St Louis

37h 10m

2 stops

MXP7:30 amMilan Malpensa

$653

Find similar

United Airlines

Nov 8

MXP11:30 amMilan Malpensa

17h 52m

2 stops

STL10:22 pmLambert-St Louis

Nov 15

STL5:24 pmLambert-St Louis

12h 41m

1 stop

MXP1:05 pmMilan Malpensa

$657

Find similar

United Airlines

Nov 8

LIN6:10 amMilan Linate

20h 06m

2 stops

STL7:16 pmLambert-St Louis

Nov 15

STL3:14 pmLambert-St Louis

15h 51m

2 stops

LIN2:05 pmMilan Linate

$664

Find similar

Air Canada flights from Italy to St. Louis

Our best Air Canada deals on Italy to St. Louis flight tickets

Air Canada

Mar 5

MXP11:35 amMilan Malpensa

34h 54m

2 stops

STL3:29 pmLambert-St Louis

Mar 28

STL4:05 pmLambert-St Louis

14h 55m

2 stops

MXP1:00 pmMilan Malpensa

$683

Find similar

Air Canada

Oct 9

MXP12:15 pmMilan Malpensa

14h 42m

1 stop

STL7:57 pmLambert-St Louis

Oct 13

STL9:15 amLambert-St Louis

17h 45m

2 stops

MXP10:00 amMilan Malpensa

$685

Find similar

Air Canada

Oct 9

MXP12:15 pmMilan Malpensa

14h 42m

1 stop

STL7:57 pmLambert-St Louis

Oct 13

STL1:30 pmLambert-St Louis

13h 30m

1 stop

MXP10:00 amMilan Malpensa

$687

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Sat 11/8

11:30 am-10:22 pm

2 stops17h 52m

Lambert-St Louis

Sat 11/15

11:20 am-7:30 am

2 stops37h 10m

$653

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Sat 11/8

11:30 am-10:22 pm

2 stops17h 52m

Lambert-St Louis

Sat 11/15

5:24 pm-1:05 pm

1 stop12h 41m

$657

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Thu 3/5

11:35 am-3:29 pm

2 stops34h 54m

Lambert-St Louis

Sat 3/28

4:05 pm-1:00 pm

2 stops14h 55m

$683

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Thu 10/9

12:15 pm-7:57 pm

1 stop14h 42m

Lambert-St Louis

Mon 10/13

9:15 am-10:00 am

2 stops17h 45m

$685

FlorenceSt. Louis

FLR - STL

FLRSTL

Florence Peretola

Fri 11/28

10:25 am-3:29 pm

2 stops36h 04m

Lambert-St Louis

Tue 12/2

4:05 pm-6:30 pm

2 stops43h 25m

$689

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Thu 3/5

1:05 pm-3:29 pm

2 stops33h 24m

Lambert-St Louis

Sun 3/29

4:05 pm-2:00 pm

2 stops14h 55m

$696

BolognaSt. Louis

BLQ - STL

BLQSTL

Bologna Guglielmo Marconi

Thu 2/5

6:25 am-10:58 pm

2 stops23h 33m

Lambert-St Louis

Sun 2/8

12:44 pm-12:40 pm

2 stops16h 56m

$701

BolognaSt. Louis

BLQ - STL

BLQSTL

Bologna Guglielmo Marconi

Thu 2/5

6:25 am-11:59 pm

2 stops24h 34m

Lambert-St Louis

Sun 2/8

1:15 pm-12:40 pm

2 stops16h 25m

$704

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 2/26

1:10 pm-8:18 pm

1 stop14h 08m

Lambert-St Louis

Sun 5/3

6:00 pm-10:50 pm

2 stops21h 50m

$738

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Fri 2/27

1:10 pm-8:18 pm

1 stop14h 08m

Lambert-St Louis

Tue 4/28

11:14 am-3:00 pm

2 stops20h 46m

$740

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 Italy 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

Other information

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 Italy 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 Italy to St. Louis flights?

You could potentially save up to 1% on your flight if you consider stops on a Italy to St. Louis flight.

Cheap Italy to St. Louis flight deals and tips

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

Direct flights	None

There are no direct flights from Italy to St. Louis. There are no popular flight routes from Italy to St. Louis.

Search flight deals

When did momondo last update prices for flights from Italy to Lambert-St Louis Airport?
Prices for flights from Italy to Lambert-St Louis Airport refresh daily.
How old do you have to be to fly from Italy 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 Italy 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.

St. Charles

Chesterfield

Fairview Heights

Hermann

Florissant

Maryland Heights

O'Fallon

Fenton

Collinsville

Wentzville

Alton

St. Peters

Farmington

Festus

Glencoe

Clayton

Edwardsville

Eureka

Litchfield

Shrewsbury

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Italy to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Italy to St. Louis flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Italy 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 Italy to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Italy to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.