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Cheap flights from St. Louis to Italy from $246

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Italy departing on 12/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Italy

Cheap round-trip flights

United Airlines Logo
5:28 pm - 1:20 pmSTL-MXP
12h 52m1 stop
United Airlines Logo
9:45 am - 11:44 pmMXP-STL
20h 59m1 stop
$508United Airlines
Find Deal
Sat, Oct 18 - Mon, Nov 3
Air France Logo
10:30 am - 9:25 amSTL-MXP
15h 55m1 stop
Air France Logo
11:05 am - 4:10 pmMXP-STL
36h 05m1 stop
$520Air France
Find Deal
Sat, Oct 18 - Mon, Nov 3
Air Canada Logo
12:25 pm - 10:00 amSTL-MXP
14h 35m2 stops
Air Canada Logo
10:40 am - 3:29 pmMXP-STL
35h 49m2 stops
$538Air Canada
Find Deal
Sat, Oct 18 - Mon, Nov 3
Air Canada Logo
6:30 am - 8:55 amSTL-MXP
20h 25m2 stops
Air Canada Logo
1:05 pm - 5:39 pmMXP-STL
35h 34m3 stops
$539Air Canada
Find Deal
Mon, Oct 27 - Tue, Nov 4
Delta Logo
10:45 am - 12:05 pmSTL-MXP
18h 20m2 stops
Delta Logo
11:05 am - 6:02 pmMXP-STL
13h 57m1 stop
$554Delta
Find Deal
Sat, Oct 18 - Mon, Nov 3
Delta Logo
6:40 am - 9:45 amSTL-MXP
20h 05m2 stops
Delta Logo
12:00 pm - 9:46 amMXP-STL
28h 46m2 stops
$555Delta
Find Deal
Thu, Nov 6 - Tue, Nov 18
American Airlines Logo
10:36 am - 11:20 amSTL-MXP
17h 44m1 stop
American Airlines Logo
11:10 am - 11:05 pmMXP-STL
18h 55m2 stops
$567American Airlines
Find Deal
Wed, Oct 15 - Tue, Oct 21
American Airlines Logo
1:43 pm - 1:25 pmSTL-LIN
16h 42m2 stops
American Airlines Logo
7:35 am - 7:27 pmLIN-STL
18h 52m2 stops
$570American Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
Lufthansa Logo
3:50 pm - 6:10 pmSTL-LIN
19h 20m1 stop
Lufthansa Logo
6:10 am - 1:55 pmLIN-STL
14h 45m1 stop
$573Lufthansa
Find Deal
Wed, Nov 19 - Wed, Nov 26
Lufthansa Logo
3:30 pm - 5:55 pmSTL-NAP
19h 25m1 stop
Lufthansa Logo
1:15 pm - 11:44 pmNAP-STL
17h 29m2 stops
$577Lufthansa
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Sun, Oct 19 - Tue, Nov 4

Lufthansa flights from St. Louis to Italy

Our best Lufthansa deals on St. Louis to Italy flight tickets
Lufthansa
Nov 19
STL3:50 pmLambert-St Louis
19h 20m
1 stop
LIN6:10 pmMilan Linate
Nov 26
LIN6:10 amMilan Linate
14h 45m
1 stop
STL1:55 pmLambert-St Louis
$573
Find similar
Lufthansa
Oct 19
STL3:30 pmLambert-St Louis
19h 25m
1 stop
NAP5:55 pmNaples
Nov 4
NAP1:15 pmNaples
17h 29m
2 stops
STL11:44 pmLambert-St Louis
$577
Find similar
Lufthansa
Oct 19
STL3:30 pmLambert-St Louis
19h 25m
1 stop
NAP5:55 pmNaples
Nov 4
NAP2:35 pmNaples
30h 20m
1 stop
STL1:55 pmLambert-St Louis
$584
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Air Canada flights from St. Louis to Italy

Our best Air Canada deals on St. Louis to Italy flight tickets
Air Canada
Oct 18
STL12:25 pmLambert-St Louis
14h 35m
2 stops
MXP10:00 amMilan Malpensa
Nov 3
MXP10:40 amMilan Malpensa
35h 49m
2 stops
STL3:29 pmLambert-St Louis
$538
Find similar
Air Canada
Oct 27
STL6:30 amLambert-St Louis
20h 25m
2 stops
MXP8:55 amMilan Malpensa
Nov 4
MXP1:05 pmMilan Malpensa
35h 34m
3 stops
STL5:39 pmLambert-St Louis
$539
Find similar
Air Canada
Dec 3
STL4:05 pmLambert-St Louis
34h 50m
2 stops
MXP9:55 amMilan Malpensa
Dec 7
MXP1:05 pmMilan Malpensa
33h 24m
2 stops
STL3:29 pmLambert-St Louis
$548
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Italy that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 28, 2025.
Use the filters below to find and compare flights from St. Louis to Italy that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Sat 10/18

5:28 pm-1:20 pm

1 stop12h 52m

Milan Malpensa

Mon 11/3

9:45 am-11:44 pm

1 stop20h 59m

$508

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Sat 10/18

10:30 am-9:25 am

1 stop15h 55m

Milan Malpensa

Mon 11/3

11:05 am-4:10 pm

1 stop36h 05m

$520

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Sat 10/18

12:25 pm-10:00 am

2 stops14h 35m

Milan Malpensa

Mon 11/3

10:40 am-3:29 pm

2 stops35h 49m

$538

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Mon 10/27

6:30 am-8:55 am

2 stops20h 25m

Milan Malpensa

Tue 11/4

1:05 pm-5:39 pm

3 stops35h 34m

$539

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Sat 10/18

10:45 am-12:05 pm

2 stops18h 20m

Milan Malpensa

Mon 11/3

11:05 am-6:02 pm

1 stop13h 57m

$554

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Thu 11/6

6:40 am-9:45 am

2 stops20h 05m

Milan Malpensa

Tue 11/18

12:00 pm-9:46 am

2 stops28h 46m

$555

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 10/15

10:36 am-11:20 am

1 stop17h 44m

Milan Malpensa

Tue 10/21

11:10 am-11:05 pm

2 stops18h 55m

$567

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Wed 11/19

1:43 pm-1:25 pm

2 stops16h 42m

Milan Linate

Wed 11/26

7:35 am-7:27 pm

2 stops18h 52m

$570

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Wed 11/19

3:50 pm-6:10 pm

1 stop19h 20m

Milan Linate

Wed 11/26

6:10 am-1:55 pm

1 stop14h 45m

$573

St. LouisNaples

STL - NAP

STLNAP

Lambert-St Louis

Sun 10/19

3:30 pm-5:55 pm

1 stop19h 25m

Naples

Tue 11/4

1:15 pm-11:44 pm

2 stops17h 29m

$577

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Italy from

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

What is the cheapest month to fly to Italy?

The cheapest month to fly to Italy from St. Louis is in November. Flight prices, which tend to average around $738, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Italy from St. Louis during February instead. Flights to Italy in February, while not as cheap as those in November, still average around $741.

What is the cheapest day to depart on your flight to Italy?

According to our data, Wednesday is the cheapest day to fly to Italy from St. Louis. The lowest ticket price found for a Wednesday departure recently was $1,109. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Italy for around $1,335.

What is the cheapest time of day to depart on your flight to Italy?

Our data shows that the cheapest St. Louis to Italy flights are usually those with departure times in the afternoon. Our users have found flights to Italy in the afternoon for as low as $1,209. In contrast, the most expensive time of day to depart to Italy is in the evening when prices are around $1,328.

How far in advance should I book a flight 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 $1,044 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 $838 on momondo.

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

You could potentially save up to 31% 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

Direct flights

None
There are no direct flights from St. Louis to Italy. There are no popular flight routes from St. Louis to Italy.
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  • 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?

  • 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
United AirlinesPriceFrom $485Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
IberiaPriceFrom $536Free CancellationRating
7.0
2,892 reviews
Search Iberia flights
KLMPriceFrom $573Free CancellationRating
7.8
1,382 reviews
Search KLM flights
DeltaPriceFrom $587Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $665Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $672Free CancellationRating
6.7
7,316 reviews
Search British Airways flights
LufthansaPriceFrom $675Free CancellationRating
6.8
7,368 reviews
Search Lufthansa flights
Air CanadaPriceFrom $705Free CancellationRating
7.1
10,000 reviews
Search Air Canada 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.

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Find better results for your trip to Italy

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