What airlines fly to Italy?

United Airlines, Lufthansa and American Airlines are the top three most popular airlines that fly to Italy from St. Louis according to our data. United Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Italy. Keep in mind that there are 7 different airlines that fly to Italy on a routine basis, so you have a few additional options to choose from.

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

Lufthansa, American Airlines, and Air Canada are the most popular carriers operating from Lambert-St Louis to Italy

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

Prices for flights from Lambert-St Louis Airport to Italy are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Italy?

The number of operators available for flights from Lambert-St Louis Airport to Italy is 7 as of August 2026.

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

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 Lambert-St Louis Airport to Italy.

What documentation or ID do you need to fly to Italy?

The travel and health documents required for your trip to Italy 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 Italy. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$281 Cheap Flights from St. Louis to Italy in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Italy

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:50 pm - 4:30 pmSTL Lambert-St Louis-MXP Milan Malpensa

14h 40m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

5:15 pm - 9:57 pmMXP Milan Malpensa-STL Lambert-St Louis

35h 42m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$741Lufthansa

Mon, Nov 30 - Mon, Dec 7

6:04 am - 7:30 amSTL Lambert-St Louis-MXP Milan Malpensa

18h 26m1 stop Newark

12:55 pm - 11:09 pmMXP Milan Malpensa-STL Lambert-St Louis

41h 14m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$742United Airlines

Wed, Dec 30 - Wed, Jan 6

6:58 pm - 4:30 pmSTL Lambert-St Louis-MXP Milan Malpensa

14h 32m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

12:55 pm - 9:13 pmMXP Milan Malpensa-STL Lambert-St Louis

39h 18m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$743Multiple Airlines

Wed, Dec 30 - Wed, Jan 6

4:05 pm - 10:05 amSTL Lambert-St Louis-MXP Milan Malpensa

36h 00m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

6:55 am - 1:45 pmMXP Milan Malpensa-STL Lambert-St Louis

13h 50m1 stop Frankfurt am Main

$743Multiple Airlines

Sat, Oct 31 - Wed, Nov 11

10:53 am - 1:15 pmSTL Lambert-St Louis-MXP Milan Malpensa

19h 22m1 stop Chicago O'Hare Intl

11:20 am - 5:04 pmMXP Milan Malpensa-STL Lambert-St Louis

36h 44m2 stops Frankfurt am Main Chicago O'Hare Intl

$754United Airlines

Mon, Nov 30 - Mon, Dec 7

12:10 pm - 10:20 amSTL Lambert-St Louis-MXP Milan Malpensa

15h 10m1 stop Montreal Pierre Elliott Trudeau Intl

12:20 pm - 2:00 pmMXP Milan Malpensa-STL Lambert-St Louis

32h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$770Air Canada

Wed, Sep 30 - Thu, Oct 15

3:40 pm - 10:40 amSTL Lambert-St Louis-MXP Milan Malpensa

12h 00m1 stop Frankfurt am Main

6:55 am - 1:45 pmMXP Milan Malpensa-STL Lambert-St Louis

13h 50m1 stop Frankfurt am Main

$772Lufthansa

Sun, Jan 10 - Sun, Feb 28

8:05 am - 8:55 amSTL Lambert-St Louis-FCO Rome Fiumicino

17h 50m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

1:15 pm - 10:59 pmFCO Rome Fiumicino-STL Lambert-St Louis

40h 44m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$773Air Canada

Wed, Dec 2 - Wed, Dec 9

12:30 pm - 11:15 amSTL Lambert-St Louis-LIN Milan Linate

15h 45m2 stops Minneapolis St Paul Paris Charles de Gaulle

10:55 am - 11:18 pmLIN Milan Linate-STL Lambert-St Louis

43h 23m2 stops Amsterdam Schiphol Minneapolis St Paul

$779Delta

Mon, Jan 4 - Mon, Jan 11

10:33 am - 11:15 amSTL Lambert-St Louis-LIN Milan Linate

17h 42m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

10:55 am - 8:49 pmLIN Milan Linate-STL Lambert-St Louis

40h 54m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$779Delta

Sun, Jan 3 - Mon, Jan 11

Cheap last minute flights

Enter your travel dates to find the best prices.

3:30 pm - 12:30 pmSTL Lambert-St Louis-FCO Rome Fiumicino

14h 00m1 stop Frankfurt am Main

6:50 am - 1:25 pmFCO Rome Fiumicino-STL Lambert-St Louis

13h 35m1 stop Frankfurt am Main

$953Lufthansa

Wed, Aug 26 - Wed, Sep 2

3:30 pm - 12:30 pmSTL Lambert-St Louis-FCO Rome Fiumicino

14h 00m1 stop Frankfurt am Main

6:50 am - 1:25 pmFCO Rome Fiumicino-STL Lambert-St Louis

13h 35m1 stop Frankfurt am Main

$960Lufthansa

Wed, Aug 26 - Wed, Sep 2

12:10 pm - 9:15 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 05m1 stop Montreal Pierre Elliott Trudeau Intl

11:30 am - 6:42 pmFCO Rome Fiumicino-STL Lambert-St Louis

14h 12m1 stop Montreal Pierre Elliott Trudeau Intl

$979Air Canada

Wed, Aug 26 - Wed, Sep 2

12:27 pm - 7:35 amSTL Lambert-St Louis-FCO Rome Fiumicino

12h 08m1 stop Newark

2:20 pm - 12:02 pmFCO Rome Fiumicino-STL Lambert-St Louis

28h 42m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$982United Airlines

Wed, Aug 26 - Wed, Sep 2

12:10 pm - 9:15 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 05m1 stop Montreal Pierre Elliott Trudeau Intl

2:20 pm - 3:38 pmFCO Rome Fiumicino-STL Lambert-St Louis

32h 18m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$982United Airlines

Wed, Aug 26 - Wed, Sep 2

12:10 pm - 9:15 amSTL Lambert-St Louis-FCO Rome Fiumicino

14h 05m1 stop Montreal Pierre Elliott Trudeau Intl

11:30 am - 3:38 pmFCO Rome Fiumicino-STL Lambert-St Louis

35h 08m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$982Air Canada

Wed, Aug 26 - Wed, Sep 2

3:30 pm - 6:30 pmSTL Lambert-St Louis-FLR Florence Peretola

20h 00m1 stop Frankfurt am Main

6:30 am - 6:42 pmFLR Florence Peretola-STL Lambert-St Louis

19h 12m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$1,009Multiple Airlines

Wed, Aug 26 - Mon, Aug 31

2:10 pm - 5:15 pmSTL Lambert-St Louis-FLR Florence Peretola

20h 05m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

6:30 am - 5:53 pmFLR Florence Peretola-STL Lambert-St Louis

18h 23m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,020Delta

Wed, Aug 26 - Thu, Sep 3

2:10 pm - 2:25 pmSTL Lambert-St Louis-FLR Florence Peretola

17h 15m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

6:30 am - 11:21 pmFLR Florence Peretola-STL Lambert-St Louis

23h 51m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,020Delta

Wed, Aug 26 - Wed, Sep 2

8:40 am - 9:40 amSTL Lambert-St Louis-FLR Florence Peretola

18h 00m2 stops Washington, D.C. Dulles Intl Frankfurt am Main

6:30 am - 6:42 pmFLR Florence Peretola-STL Lambert-St Louis

19h 12m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$1,022Multiple Airlines

Wed, Aug 26 - Mon, Aug 31

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American Airlines flights from St. Louis to Italy

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

American Airlines

Jan 11

STL8:13 amLambert-St Louis

16h 52m

2 stops

MXP8:05 amMilan Malpensa

Jan 17

MXP10:25 amMilan Malpensa

17h 43m

2 stops

STL9:08 pmLambert-St Louis

$791

American Airlines

Jan 11

STL8:13 amLambert-St Louis

16h 52m

2 stops

MXP8:05 amMilan Malpensa

Jan 17

MXP10:25 amMilan Malpensa

17h 43m

2 stops

STL9:08 pmLambert-St Louis

$792

American Airlines

Nov 11

STL5:29 pmLambert-St Louis

16h 26m

2 stops

FCO4:55 pmRome Fiumicino

Nov 16

FCO1:10 pmRome Fiumicino

15h 49m

1 stop

STL9:59 pmLambert-St Louis

$872

Lufthansa flights from St. Louis to Italy

Our best Lufthansa deals on St. Louis to Italy flight tickets

Lufthansa

Nov 30

STL6:50 pmLambert-St Louis

14h 40m

2 stops

MXP4:30 pmMilan Malpensa

Dec 7

MXP5:15 pmMilan Malpensa

35h 42m

2 stops

STL9:57 pmLambert-St Louis

$741

Lufthansa

Jan 10

STL3:40 pmLambert-St Louis

12h 00m

1 stop

MXP10:40 amMilan Malpensa

Feb 28

MXP6:55 amMilan Malpensa

13h 50m

1 stop

STL1:45 pmLambert-St Louis

$772

Lufthansa

Dec 30

STL3:40 pmLambert-St Louis

14h 00m

1 stop

LIN12:40 pmMilan Linate

Jan 6

LIN6:25 amMilan Linate

14h 20m

1 stop

STL1:45 pmLambert-St Louis

$773

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMilan

STL Lambert-St Louis - MXP Milan Malpensa

STLMXP

Lambert-St Louis

Mon 11/30

6:50 pm-4:30 pm

2 stops14h 40m

Milan Malpensa

Mon 12/7

5:15 pm-9:57 pm

2 stops35h 42m

$741

St. LouisMilan

STL Lambert-St Louis - MXP Milan Malpensa

STLMXP

Lambert-St Louis

Wed 12/30

6:04 am-7:30 am

1 stop18h 26m

Milan Malpensa

Wed 1/6

12:55 pm-11:09 pm

2 stops41h 14m

$742

St. LouisMilan

STL Lambert-St Louis - MXP Milan Malpensa

STLMXP

Lambert-St Louis

Wed 12/30

6:58 pm-4:30 pm

2 stops14h 32m

Milan Malpensa

Wed 1/6

12:55 pm-9:13 pm

2 stops39h 18m

$743

St. LouisMilan

STL Lambert-St Louis - MXP Milan Malpensa

STLMXP

Lambert-St Louis

Sat 10/31

4:05 pm-10:05 am

2 stops36h 00m

Milan Malpensa

Wed 11/11

6:55 am-1:45 pm

1 stop13h 50m

$743

St. LouisMilan

STL Lambert-St Louis - MXP Milan Malpensa

STLMXP

Lambert-St Louis

Mon 11/30

10:53 am-1:15 pm

1 stop19h 22m

Milan Malpensa

Mon 12/7

11:20 am-5:04 pm

2 stops36h 44m

$754

St. LouisMilan

STL Lambert-St Louis - MXP Milan Malpensa

STLMXP

Lambert-St Louis

Wed 9/30

12:10 pm-10:20 am

1 stop15h 10m

Milan Malpensa

Thu 10/15

12:20 pm-2:00 pm

2 stops32h 40m

$770

Quickest round-trip

St. LouisMilan

STL Lambert-St Louis - MXP Milan Malpensa

STLMXP

Lambert-St Louis

Sun 1/10

3:40 pm-10:40 am

1 stop12h 00m

Milan Malpensa

Sun 2/28

6:55 am-1:45 pm

1 stop13h 50m

$772

St. LouisRome

STL Lambert-St Louis - FCO Rome Fiumicino

STLFCO

Lambert-St Louis

Wed 12/2

8:05 am-8:55 am

2 stops17h 50m

Rome Fiumicino

Wed 12/9

1:15 pm-10:59 pm

2 stops40h 44m

$773

St. LouisMilan

STL Lambert-St Louis - LIN Milan Linate

STLLIN

Lambert-St Louis

Mon 1/4

12:30 pm-11:15 am

2 stops15h 45m

Milan Linate

Mon 1/11

10:55 am-11:18 pm

2 stops43h 23m

$779

St. LouisMilan

STL Lambert-St Louis - LIN Milan Linate

STLLIN

Lambert-St Louis

Sun 1/3

10:33 am-11:15 am

2 stops17h 42m

Milan Linate

Mon 1/11

10:55 am-8:49 pm

2 stops40h 54m

$779

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 St. Louis to Italy

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 month to fly to Italy?

The cheapest month to fly to Italy from St. Louis is in February. Flight prices, which tend to average around $655, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Italy from St. Louis during January instead. Flights to Italy in January, while not as cheap as those in February, still average around $655.

How far in advance should I book a flight from St. Louis to Italy?

You are more likely to see cheaper flights to Italy from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Italy for around $1,004 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Italy from St. Louis for as low as $729 on momondo.

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

You could potentially save up to 23% on your flight if you consider stops on a St. Louis to Italy flight.

Cheap St. Louis to Italy flight deals and tips

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

Best Price Found	$281
Fastest flight time	11h 20m
Direct flights	None

The best one-way flight to Italy from St. Louis in the past 72 hours is $281. The best round-trip flight deal from St. Louis to Italy found on momondo in the last 72 hours is $741.

The fastest flight from St. Louis to Italy takes 11h 20m

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

Search flight deals

Frequently asked questions about flying from St. Louis to Italy

When did momondo last update prices for flights from Lambert-St Louis Airport to Italy?
Prices for flights from Lambert-St Louis Airport to Italy are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Italy?
The number of operators available for flights from Lambert-St Louis Airport to Italy is 7 as of August 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Italy?
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 Lambert-St Louis Airport to Italy.
What documentation or ID do you need to fly to Italy?
The travel and health documents required for your trip to Italy 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 Italy. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from St. Louis to Italy

Compare and see reviews for airlines that fly from St. Louis to Italy with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $472	Free Cancellation	Rating 6.7 8,188 reviews	Search British Airways flights
United Airlines	PriceFrom $472	Free Cancellation	Rating 7.4 10,119 reviews	Search United Airlines flights
Lufthansa	PriceFrom $500	Free Cancellation	Rating 6.8 8,217 reviews	Search Lufthansa flights
KLM	PriceFrom $506	Free Cancellation	Rating 7.8 1,565 reviews	Search KLM flights
American Airlines	PriceFrom $513	Free Cancellation	Rating 7.1 11,988 reviews	Search American Airlines flights
Air Canada	PriceFrom $552	Free Cancellation	Rating 7.1 11,532 reviews	Search Air Canada flights
Delta	PriceFrom $665	Free Cancellation	Rating 7.8 8,527 reviews	Search Delta flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Italy. momondo saves you time and could save you money on your trip.

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

Flights from St. Louis to Italy with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential St. Louis to Italy flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for St. Louis to Italy flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.