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$330+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — NAP
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$607
(United Airlines)

One-way from

$330
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,136
Provider with most accurate pricing for Lambert-St Louis-Rome (ROM) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Rome (ROM) flights.
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From Lambert-St Louis to Italy
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One-way flight from Lambert-St Louis to Italy
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Highest demand for flights based on searches. 24% potential increase in price ($358 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 17, 2025.

This Delta deal was found by Cheapflights users on 4/17. 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.
Thu 11/67:20 amSTL - MXP
2 stops19h 25mDelta
Tue 11/1812:00 pmMXP - STL
2 stops27h 10mDelta
Deal found 4/17$594
This United Airlines deal was found by Cheapflights users on 4/17. 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 10/141:30 pmSTL - MXP
1 stop13h 30mUnited Airlines
Wed 10/2212:15 pmMXP - STL
2 stops33h 04mUnited Airlines
Deal found 4/17$607
This United Airlines deal was found by Cheapflights users on 4/17. 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 11/611:45 amSTL - LIN
2 stops22h 15mUnited Airlines
Tue 11/186:15 amLIN - STL
2 stops16h 11mUnited Airlines
Deal found 4/17$619
This American Airlines deal was found by Cheapflights users on 4/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:27 pmSTL - LIN
2 stops15h 48mAmerican Airlines
Wed 10/227:25 amLIN - STL
2 stops19h 36mAmerican Airlines
Deal found 4/17$663
This FlightHub deal was found by Cheapflights users on 4/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1412:28 pmSTL - LIN
2 stops13h 52mLufthansa
Wed 10/227:00 amLIN - STL
1 stop13h 30mLufthansa
Deal found 4/17$665
This Scandinavian Airlines deal was found by Cheapflights users on 4/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/253:30 pmSTL - MXP
2 stops34h 05mScandinavian Airlines
Thu 9/49:15 amMXP - STL
2 stops21h 24mScandinavian Airlines
Deal found 4/17$703
This United Airlines deal was found by Cheapflights users on 4/17. 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 10/141:30 pmSTL - VCE
1 stop13h 10mUnited Airlines
Wed 10/296:50 amVCE - STL
1 stop14h 05mUnited Airlines
Deal found 4/17$720
This Gotogate deal was found by Cheapflights users on 4/17. 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.
Wed 5/77:30 amSTL - VCE
1 stop19h 10mMultiple Airlines
Wed 5/1410:35 amVCE - STL
2 stops16h 23mMultiple Airlines
Deal found 4/17$750
This Air Canada deal was found by Cheapflights users on 4/17. 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.
Fri 5/97:30 amSTL - MXP
2 stops19h 25mAir Canada
Tue 5/1312:15 pmMXP - STL
1 stop14h 43mAir Canada
Deal found 4/17$774
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/71:30 pmSTL - NAP
2 stops20h 05mMultiple Airlines
Wed 5/149:35 amNAP - STL
2 stops17h 23mMultiple Airlines
Deal found 4/16$790
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/71:38 pmSTL - NAP
1 stop16h 22mAmerican Airlines
Wed 5/1412:00 pmNAP - STL
1 stop15h 58mAmerican Airlines
Deal found 4/16$795
This United deal was found by Cheapflights users on 4/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:30 pmSTL - FCO
1 stop31h 25mMultiple Airlines
Thu 9/2511:45 amFCO - STL
1 stop15h 12mMultiple Airlines
Deal found 4/17$815

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 April 17, 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

Tue 10/14

1:30 pm-10:00 am

1 stop13h 30m

Milan Malpensa

Wed 10/22

12:15 pm-2:19 pm

2 stops33h 04m

$607

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Tue 10/14

6:27 pm-5:15 pm

2 stops15h 48m

Milan Linate

Wed 10/22

7:25 am-8:01 pm

2 stops19h 36m

$663

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Tue 10/14

12:28 pm-9:20 am

2 stops13h 52m

Milan Linate

Wed 10/22

7:00 am-1:30 pm

1 stop13h 30m

$665

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Mon 8/25

3:30 pm-8:35 am

2 stops34h 05m

Milan Malpensa

Thu 9/4

9:15 am-11:39 pm

2 stops21h 24m

$703

St. LouisVenice

STL - VCE

STLVCE

Lambert-St Louis

Tue 10/14

1:30 pm-9:40 am

1 stop13h 10m

Venice Marco Polo

Wed 10/29

6:50 am-2:55 pm

1 stop14h 05m

$720

St. LouisVenice

STL - VCE

STLVCE

Lambert-St Louis

Wed 5/7

7:30 am-9:40 am

1 stop19h 10m

Venice Marco Polo

Wed 5/14

10:35 am-7:58 pm

2 stops16h 23m

$750

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Fri 5/9

7:30 am-9:55 am

2 stops19h 25m

Milan Malpensa

Tue 5/13

12:15 pm-7:58 pm

1 stop14h 43m

$774

St. LouisNaples

STL - NAP

STLNAP

Lambert-St Louis

Wed 5/7

1:30 pm-4:35 pm

2 stops20h 05m

Naples

Wed 5/14

9:35 am-7:58 pm

2 stops17h 23m

$790

St. LouisNaples

STL - NAP

STLNAP

Lambert-St Louis

Wed 5/7

1:38 pm-1:00 pm

1 stop16h 22m

Naples

Wed 5/14

12:00 pm-8:58 pm

1 stop15h 58m

$795

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 5/13

6:00 am-7:35 am

1 stop18h 35m

Rome Fiumicino

Wed 5/21

10:10 am-11:38 pm

2 stops20h 28m

$818

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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 $703). Flying from St. Louis to Italy in June is currently the most expensive (average of $1,273). 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 April 17, 2025.

When flying from St. Louis to Italy, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Italy by month

Plan your trip to Italy by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Italy ranges from 0.6 - 4.4 inches per month. November is typically the wettest month, when rainfall can reach 4.4 in. June is typically the driest time to visit Italy when rainfall is around 0.6 in.

Temperature in Italy by month

Plan your trip to Italy by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Italy, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

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 April 17, 2025.
Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from St. Louis to Italy. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
775 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 Aer Lingus ($510), United Airlines ($558), and Air Canada ($585).

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

    Most travelers choose Lambert-St Louis - Rome Fiumicino, Lambert-St Louis - Milan Malpensa or Lambert-St Louis - Naples when deciding on the best route 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 $703). Flying from St. Louis to Italy in June is currently the most expensive (average of $1,273). 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

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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.
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Top 9 airlines flying from St. Louis to Italy

Discover the top 9 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$573Average$1,074FlexibilityNo cancel feeOn-time75%
DeltaCheapest$670Average$1,170FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$672Average$1,113FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$675Average$1,336FlexibilityNo cancel feeOn-time76%
IberiaCheapest$681Average$1,060FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$688Average$1,228FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$705Average$1,408FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$720Average$1,179FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$861Average$1,168FlexibilityNo cancel feeOn-time77%

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