Italy

$226+ Cheap flights from St. Louis (STL) to Italy

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — NAP
Nov 26 — Dec 31
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Cheap flight deals from St. Louis to Italy

Keep the following information in mind while searching for St. Louis to Italy flight deals. Data was last updated October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$471
(Mytrip)

One-way from

$226
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$906
Provider with most accurate pricing for Lambert-St Louis-Rome (ROM) flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Rome (ROM) flights.
From Lambert-St Louis to Italy
One-way flight from Lambert-St Louis to Italy
Highest demand for flights based on searches. 25% potential increase in price ($364 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).
Average for round-trip flights in October 2025

Find flight deals from St. Louis to Italy

Cheapest flights from St. Louis to Italy
Explore the most affordable flight options available from St. Louis to Italy. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:50 amSTL - MXP
1 stop12h 40mUnited Airlines
Tue 12/161:05 pmMXP - STL
2 stops39h 35mUnited Airlines
Deal found 10/25$475
This Air Canada deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:05 pmSTL - MXP
2 stops34h 45mAir Canada
Sun 12/71:05 pmMXP - STL
2 stops32h 18mAir Canada
Deal found 10/25$503
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:50 pmSTL - MXP
1 stop12h 00mUnited Airlines
Sun 12/71:05 pmMXP - STL
2 stops32h 18mUnited Airlines
Deal found 10/25$507
This Expedia deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:43 pmSTL - LIN
2 stops17h 07mMultiple Airlines
Mon 12/17:35 pmLIN - STL
2 stops50h 54mMultiple Airlines
Deal found 10/26$517
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:13 pmSTL - LIN
2 stops18h 42mUnited Airlines
Tue 12/166:15 amLIN - STL
2 stops15h 10mUnited Airlines
Deal found 10/25$522
This Gotogate deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/283:50 pmSTL - BLQ
1 stop15h 00mMultiple Airlines
Wed 12/33:00 pmBLQ - STL
2 stops55h 29mMultiple Airlines
Deal found 10/26$527
This Gotogate deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/283:50 pmSTL - BLQ
1 stop15h 00mLufthansa
Wed 12/36:30 amBLQ - STL
1 stop14h 25mLufthansa
Deal found 10/26$530
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:25 amSTL - BLQ
2 stops25h 40mUnited Airlines
Wed 12/310:15 amBLQ - STL
2 stops16h 02mUnited Airlines
Deal found 10/26$531
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:50 amSTL - FCO
1 stop13h 05mUnited Airlines
Fri 12/121:10 pmFCO - STL
2 stops32h 15mUnited Airlines
Deal found 10/25$532
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:00 amSTL - MXP
1 stop20h 05mDelta
Fri 1/912:00 pmMXP - STL
2 stops18h 25mDelta
Deal found 10/26$533
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:50 pmSTL - LIN
1 stop15h 15mUnited Airlines
Sun 12/76:15 amLIN - STL
2 stops20h 02mUnited Airlines
Deal found 10/26$534
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:05 amSTL - LIN
2 stops22h 50mUnited Airlines
Tue 11/182:50 pmLIN - STL
2 stops31h 39mUnited Airlines
Deal found 10/25$535

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from St. Louis to Italy that are best for you.

Fly from

St. Louis

Fly to

Italy

Route

Depart

Return

Price

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Sun 2/8

4:05 pm-9:55 am

2 stops34h 50m

Milan Malpensa

Fri 2/20

2:40 pm-3:29 pm

2 stops31h 49m

$471

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Mon 2/9

6:40 pm-9:55 am

2 stops32h 15m

Milan Malpensa

Tue 2/17

1:05 pm-3:29 pm

2 stops33h 24m

$494

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Sun 2/8

4:05 pm-4:55 pm

2 stops17h 50m

Milan Linate

Fri 2/20

6:10 am-3:29 pm

2 stops40h 19m

$495

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 12/10

6:15 am-9:55 am

2 stops20h 40m

Milan Malpensa

Wed 12/17

9:45 am-9:40 pm

2 stops18h 55m

$502

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Tue 12/9

6:15 am-7:30 am

2 stops18h 15m

Milan Malpensa

Tue 12/16

9:45 am-9:40 pm

2 stops18h 55m

$502

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Mon 2/9

10:00 am-9:05 am

1 stop16h 05m

Milan Malpensa

Tue 2/17

11:05 am-9:04 am

1 stop28h 59m

$503

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Mon 2/9

6:35 am-10:35 am

2 stops21h 00m

Milan Malpensa

Tue 2/17

11:05 am-9:04 am

1 stop28h 59m

$507

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 12/3

3:50 pm-10:50 am

1 stop12h 00m

Milan Malpensa

Sun 12/7

1:05 pm-2:23 pm

2 stops32h 18m

$507

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Sun 2/8

6:40 pm-6:50 pm

2 stops17h 10m

Milan Linate

Fri 2/20

10:45 am-12:05 am

2 stops20h 20m

$508

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Wed 11/26

6:43 pm-6:50 pm

2 stops17h 07m

Milan Linate

Mon 12/1

7:35 pm-3:29 pm

2 stops50h 54m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis to Italy

Have a flexible travel schedule? Discover the best time to fly to Italy from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Italy

What is the cheapest month to book a flight from St. Louis to Italy?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Italy (average of $472). Flying from St. Louis to Italy in June is currently the most expensive (average of $1,010). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to IT?

Find hourly flight availability from St. Louis to Italy. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.

One of the essential ways to save on airfare from St. Louis to Italy is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 34% on airfare.

Reviews of airlines servicing Italy

Get insights into the airlines that provide service to Italy. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Italy. Reviews last updated October 27, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from St. Louis to Italy by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Italy. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from St. Louis to Italy?

    If you book a flight to Italy from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How long is the flight from St. Louis to Italy?

    United Airlines, Air Canada, and Lufthansa can get you from St. Louis to Italy in just under 12h 40m. Your travel time can differ by up to 19h 35m. St. Louis and Italy are separated by a distance of 4752 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from St. Louis to Italy one-way?

    The cheapest airlines for a one-way flight from St. Louis to Italy are British Airways ($235), United Airlines ($237), and Air Canada ($237).

  • What are the most popular routes from St. Louis to Italy?

  • Can I find deals for flights from St. Louis to Italy that include hotel bookings?

    Yes. In addition to deals on St. Louis to Italy flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Italy?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Italy.

  • Can I find deals for business class flights from St. Louis to Italy?

    Yes. Cheapflights offers flight deals from St. Louis to Italy by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Italy?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Italy (average of $472). Flying from St. Louis to Italy in June is currently the most expensive (average of $1,010). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Italy

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from St. Louis to Italy

Discover the top 8 airlines that operate flights from St. Louis to Italy. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$485Average$1,158FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$493Average$1,330FlexibilityNo cancel feeOn-time76%
IberiaCheapest$536Average$1,129FlexibilityNo cancel feeOn-time77%
KLMCheapest$566Average$1,009FlexibilityNo cancel feeOn-time75%
DeltaCheapest$587Average$1,111FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$619Average$1,080FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$672Average$984FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$705Average$1,208FlexibilityNo cancel feeOn-time67%

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