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Cheap flights from St. Louis to Italy from $242

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 2/4. 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

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 9:55 am
STL
-
MXP
34h 50m2 stops
Air Canada Logo
1:05 pm - 3:15 pm
MXP
-
STL
33h 10m2 stops
$409Air Canada
lun., ene. 19 - mar., feb. 3
United Airlines Logo
7:40 am - 8:55 am
STL
-
MXP
19h 15m2 stops
United Airlines Logo
12:05 pm - 9:00 pm
MXP
-
STL
38h 55m2 stops
$424United Airlines
mar., mar. 10 - mar., mar. 17
Lufthansa Logo
4:49 pm - 4:15 pm
STL
-
VCE
16h 26m2 stops
Lufthansa Logo
6:45 am - 1:55 pm
VCE
-
STL
14h 10m1 stop
$427Lufthansa
dom., ene. 18 - dom., ene. 25
Lufthansa Logo
4:49 pm - 4:40 pm
STL
-
MXP
16h 51m2 stops
Lufthansa Logo
9:45 am - 11:59 pm
MXP
-
STL
21h 14m1 stop
$430Lufthansa
sáb., ene. 17 - sáb., ene. 24
British Airways Logo
6:44 pm - 10:25 am
STL
-
MXP
32h 41m2 stops
British Airways Logo
8:40 pm - 6:11 pm
MXP
-
STL
28h 31m2 stops
$441British Airways
lun., feb. 9 - mar., feb. 17
British Airways Logo
11:59 am - 11:30 am
STL
-
LIN
17h 31m2 stops
British Airways Logo
11:25 am - 11:48 pm
LIN
-
STL
18h 23m2 stops
$444British Airways
mar., mar. 10 - mar., mar. 17
American Airlines Logo
3:54 pm - 2:30 pm
STL
-
LIN
15h 36m2 stops
American Airlines Logo
11:25 am - 9:15 pm
LIN
-
STL
16h 50m2 stops
$449American Airlines
lun., ene. 19 - mar., feb. 3
Delta Logo
12:00 pm - 11:20 am
STL
-
VCE
16h 20m2 stops
Delta Logo
6:30 am - 11:25 pm
VCE
-
STL
23h 55m2 stops
$477Delta
dom., ene. 18 - dom., ene. 25
Delta Logo
9:59 am - 11:15 am
STL
-
LIN
18h 16m2 stops
Delta Logo
6:30 am - 7:22 pm
LIN
-
STL
19h 52m2 stops
$479Delta
dom., feb. 8 - mié., feb. 18
American Airlines Logo
2:00 pm - 3:35 pm
STL
-
NAP
19h 35m2 stops
American Airlines Logo
6:20 am - 11:48 pm
NAP
-
STL
23h 28m2 stops
$559American Airlines
jue., mar. 12 - mié., mar. 18

Lufthansa flights from St. Louis to Italy

Our best Lufthansa deals on St. Louis to Italy flight tickets
Lufthansa
Jan 18
STL4:49 pmLambert-St Louis
16h 26m
2 stops
VCE4:15 pmVenice Marco Polo
Jan 25
VCE6:45 amVenice Marco Polo
14h 10m
1 stop
STL1:55 pmLambert-St Louis
$427
Find similar
Lufthansa
Jan 17
STL4:49 pmLambert-St Louis
16h 51m
2 stops
MXP4:40 pmMilan Malpensa
Jan 24
MXP9:45 amMilan Malpensa
21h 14m
1 stop
STL11:59 pmLambert-St Louis
$430
Find similar
Lufthansa
Jan 17
STL4:49 pmLambert-St Louis
16h 51m
2 stops
MXP4:40 pmMilan Malpensa
Jan 24
MXP9:45 amMilan Malpensa
21h 14m
1 stop
STL11:59 pmLambert-St Louis
$433
Find similar

KLM flights from St. Louis to Italy

Our best KLM deals on St. Louis to Italy flight tickets
KLM
Mar 10
STL5:00 pmLambert-St Louis
33h 05m
1 stop
MXP8:05 amMilan Malpensa
Mar 17
MXP11:00 amMilan Malpensa
18h 42m
2 stops
STL11:42 pmLambert-St Louis
$450
Find similar
KLM
Jan 21
STL9:59 amLambert-St Louis
17h 31m
1 stop
FCO10:30 amRome Fiumicino
Jan 28
FCO12:40 pmRome Fiumicino
17h 57m
1 stop
STL11:37 pmLambert-St Louis
$456
Find similar
KLM
Jan 13
STL12:00 pmLambert-St Louis
20h 50m
2 stops
NAP3:50 pmNaples
Jan 20
NAP6:35 amNaples
24h 02m
2 stops
STL11:37 pmLambert-St Louis
$464
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 diciembre 4, 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

lun. 1/19

4:05 pm-9:55 am

2 stops34h 50m

Milan Malpensa

mar. 2/3

1:05 pm-3:15 pm

2 stops33h 10m

$409

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

mar. 3/10

7:40 am-8:55 am

2 stops19h 15m

Milan Malpensa

mar. 3/17

12:05 pm-9:00 pm

2 stops38h 55m

$424

St. LouisVenice

STL - VCE

STLVCE

Lambert-St Louis

dom. 1/18

4:49 pm-4:15 pm

2 stops16h 26m

Venice Marco Polo

dom. 1/25

6:45 am-1:55 pm

1 stop14h 10m

$427

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

sáb. 1/17

4:49 pm-4:40 pm

2 stops16h 51m

Milan Malpensa

sáb. 1/24

9:45 am-11:59 pm

1 stop21h 14m

$430

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

lun. 2/9

6:44 pm-10:25 am

2 stops32h 41m

Milan Malpensa

mar. 2/17

8:40 pm-6:11 pm

2 stops28h 31m

$441

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

mar. 3/10

11:59 am-11:30 am

2 stops17h 31m

Milan Linate

mar. 3/17

11:25 am-11:48 pm

2 stops18h 23m

$444

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

lun. 1/19

3:54 pm-2:30 pm

2 stops15h 36m

Milan Linate

mar. 2/3

11:25 am-9:15 pm

2 stops16h 50m

$449

St. LouisVenice

STL - VCE

STLVCE

Lambert-St Louis

dom. 1/18

12:00 pm-11:20 am

2 stops16h 20m

Venice Marco Polo

dom. 1/25

6:30 am-11:25 pm

2 stops23h 55m

$477

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

dom. 2/8

9:59 am-11:15 am

2 stops18h 16m

Milan Linate

mié. 2/18

6:30 am-7:22 pm

2 stops19h 52m

$479

St. LouisNaples

STL - NAP

STLNAP

Lambert-St Louis

jue. 3/12

2:00 pm-3:35 pm

2 stops19h 35m

Naples

mié. 3/18

6:20 am-11:48 pm

2 stops23h 28m

$559

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 $709, 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 $710.

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 $1,005 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 $835 on momondo.

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

You could potentially save up to 3% 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

Fastest flight time

11h 14m

Direct flights

None
The fastest flight from St. Louis to Italy takes 11h 14m
There are no direct flights from St. Louis to Italy. There are no popular flight routes from St. Louis to Italy.
Search flight deals

  • 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
9,066 reviews
Search United Airlines flights
LufthansaPriceFrom $493Free CancellationRating
6.8
7,612 reviews
Search Lufthansa flights
IberiaPriceFrom $536Free CancellationRating
7.0
3,040 reviews
Search Iberia flights
British AirwaysPriceFrom $545Free CancellationRating
6.7
7,562 reviews
Search British Airways flights
KLMPriceFrom $555Free CancellationRating
7.7
1,430 reviews
Search KLM flights
DeltaPriceFrom $587Free CancellationRating
7.9
8,009 reviews
Search Delta flights
American AirlinesPriceFrom $619Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights
Air CanadaPriceFrom $705Free CancellationRating
7.1
10,500 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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