Cheap flights from Milan to St. Louis from $422

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milan to St. Louis departing on 10/23. 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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Cheap round-trip flights

Air Canada Logo
11:15 am - 3:18 pmMXP-STL
35h 03m2 stops
Air Canada Logo
4:05 pm - 10:00 amSTL-MXP
34h 55m2 stops
$779Air Canada
Find Deal
Wed, Sep 17 - Wed, Sep 24
Air Canada Logo
9:10 am - 3:18 pmMXP-STL
37h 08m2 stops
Air Canada Logo
4:05 pm - 10:00 amSTL-MXP
34h 55m2 stops
$783Air Canada
Find Deal
Fri, Oct 3 - Fri, Oct 10
American Airlines Logo
10:15 am - 11:32 pmMXP-STL
20h 17m2 stops
American Airlines Logo
1:30 pm - 8:00 pmSTL-MXP
23h 30m2 stops
$786American Airlines
Find Deal
Thu, Feb 5 - Sun, Feb 8
American Airlines Logo
10:15 am - 11:32 pmMXP-STL
20h 17m2 stops
American Airlines Logo
5:54 pm - 8:00 pmSTL-MXP
19h 06m2 stops
$787American Airlines
Find Deal
Thu, Feb 5 - Sun, Feb 8
United Airlines Logo
9:10 am - 9:32 pmMXP-STL
19h 22m2 stops
United Airlines Logo
7:04 pm - 1:20 pmSTL-MXP
11h 16m1 stop
$789United Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
Lufthansa Logo
6:55 am - 6:33 pmMXP-STL
18h 38m2 stops
Lufthansa Logo
12:24 pm - 7:30 amSTL-MXP
12h 06m1 stop
$792Lufthansa
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Thu, Feb 5 - Sun, Feb 8
Lufthansa Logo
6:55 am - 6:33 pmMXP-STL
18h 38m2 stops
Lufthansa Logo
12:24 pm - 7:30 amSTL-MXP
12h 06m1 stop
$793Lufthansa
Find Deal
Thu, Feb 5 - Sun, Feb 8
United Airlines Logo
12:15 pm - 8:00 pmMXP-STL
14h 45m1 stop
United Airlines Logo
6:35 am - 10:00 amSTL-MXP
20h 25m2 stops
$796United Airlines
Find Deal
Mon, Sep 1 - Mon, Sep 8
British Airways Logo
11:30 am - 10:02 pmMXP-STL
17h 32m2 stops
British Airways Logo
7:01 pm - 5:10 pmSTL-MXP
15h 09m2 stops
$799British Airways
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Thu, Dec 18 - Sat, Jan 10
British Airways Logo
1:20 pm - 9:06 pmMXP-STL
14h 46m1 stop
British Airways Logo
8:05 pm - 6:25 pmSTL-MXP
15h 20m2 stops
$800British Airways
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Fri, Oct 3 - Fri, Oct 10

American Airlines flights from Milan to St. Louis

Our best American Airlines deals on Milan to St. Louis flight tickets
American Airlines
Feb 5
MXP10:15 amMilan Malpensa
20h 17m
2 stops
STL11:32 pmLambert-St Louis
Feb 8
STL1:30 pmLambert-St Louis
23h 30m
2 stops
MXP8:00 pmMilan Malpensa
American Airlines
Feb 5
MXP10:15 amMilan Malpensa
20h 17m
2 stops
STL11:32 pmLambert-St Louis
Feb 8
STL5:54 pmLambert-St Louis
19h 06m
2 stops
MXP8:00 pmMilan Malpensa
American Airlines
Sep 1
LIN7:30 pmMilan Linate
30h 51m
2 stops
STL7:21 pmLambert-St Louis
Sep 8
STL7:59 pmLambert-St Louis
15h 56m
2 stops
LIN6:55 pmMilan Linate

Lufthansa flights from Milan to St. Louis

Our best Lufthansa deals on Milan to St. Louis flight tickets
Lufthansa
Feb 5
MXP6:55 amMilan Malpensa
18h 38m
2 stops
STL6:33 pmLambert-St Louis
Feb 8
STL12:24 pmLambert-St Louis
12h 06m
1 stop
MXP7:30 amMilan Malpensa
Lufthansa
Feb 5
MXP6:55 amMilan Malpensa
18h 38m
2 stops
STL6:33 pmLambert-St Louis
Feb 8
STL12:24 pmLambert-St Louis
12h 06m
1 stop
MXP7:30 amMilan Malpensa
Lufthansa
Feb 5
MXP6:55 amMilan Malpensa
18h 38m
2 stops
STL6:33 pmLambert-St Louis
Feb 8
STL12:24 pmLambert-St Louis
12h 06m
1 stop
MXP7:30 amMilan Malpensa

momondo Fare Finder

 
Customize your flight search to find flights from Milan to St. Louis 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 20, 2025.
Use the filters below to find and compare flights from Milan to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Wed 9/17

11:15 am-3:18 pm

2 stops35h 03m

Lambert-St Louis

Wed 9/24

4:05 pm-10:00 am

2 stops34h 55m

$779

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Fri 10/3

9:10 am-3:18 pm

2 stops37h 08m

Lambert-St Louis

Fri 10/10

4:05 pm-10:00 am

2 stops34h 55m

$783

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Thu 2/5

10:15 am-11:32 pm

2 stops20h 17m

Lambert-St Louis

Sun 2/8

1:30 pm-8:00 pm

2 stops23h 30m

$786

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Thu 2/5

10:15 am-11:32 pm

2 stops20h 17m

Lambert-St Louis

Sun 2/8

5:54 pm-8:00 pm

2 stops19h 06m

$787

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Wed 9/17

9:10 am-9:32 pm

2 stops19h 22m

Lambert-St Louis

Wed 9/24

7:04 pm-1:20 pm

1 stop11h 16m

$789

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Thu 2/5

6:55 am-6:33 pm

2 stops18h 38m

Lambert-St Louis

Sun 2/8

12:24 pm-7:30 am

1 stop12h 06m

$792

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Thu 2/5

6:55 am-6:33 pm

2 stops18h 38m

Lambert-St Louis

Sun 2/8

12:24 pm-7:30 am

1 stop12h 06m

$793

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Mon 9/1

12:15 pm-8:00 pm

1 stop14h 45m

Lambert-St Louis

Mon 9/8

6:35 am-10:00 am

2 stops20h 25m

$796

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Thu 12/18

11:30 am-10:02 pm

2 stops17h 32m

Lambert-St Louis

Sat 1/10

7:01 pm-5:10 pm

2 stops15h 09m

$799

MilanSt. Louis

MXP - STL

MXPSTL

Milan Malpensa

Fri 10/3

1:20 pm-9:06 pm

1 stop14h 46m

Lambert-St Louis

Fri 10/10

8:05 pm-6:25 pm

2 stops15h 20m

$800

Flights are sorted by cheapest round-trip flights first.

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See travel insights to St. Louis from

How to get the cheapest flight ticket from Milan 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

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 Friday when prices can be found for as low as $885. 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 $1,030. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

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

You could potentially save up to 14% on your flight if you consider stops on a Milan to St. Louis flight.

When to book flights from Milan to St. Louis

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

Cheap Milan to St. Louis (MIL to STL) flight deals and tips

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

Direct flights

None
There are no direct flights from Milan to St. Louis. There are no popular flight routes from Milan to St. Louis.
  • How far is Milan to Lambert-St Louis by plane?

    A flight from Milan to Lambert-St Louis will travel around 4775.8 mi. Flights usually cover this in 13h 30m, depending on flying conditions and air traffic around both airports.

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Milan to Lambert-St Louis Airport.

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

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Festus
Farmington
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

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

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

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

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

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

Once you have performed a search for Milan to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to St. Louis from Milan 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.

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1 adult
Mon 8/25
Mon 9/1

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