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$254+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — NAP
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$507
(Mytrip)

One-way from

$254
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$1,188
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. 20% potential increase in price ($290 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/3. 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.
Sun 11/911:45 amSTL - FCO
1 stop13h 00mUnited Airlines
Fri 11/211:15 pmFCO - STL
2 stops32h 05mUnited Airlines
Deal found 7/3$484
This CheapOair deal was found by Cheapflights users on 7/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/229:15 amSTL - FCO
1 stop19h 30mMultiple Airlines
Fri 11/77:05 amFCO - STL
1 stop13h 50mMultiple Airlines
Deal found 7/2$502
This Mytrip deal was found by Cheapflights users on 7/3. 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 12/34:05 pmSTL - MXP
2 stops34h 50mMultiple Airlines
Sun 12/77:00 amMXP - STL
1 stop13h 55mMultiple Airlines
Deal found 7/3$507
This Booking.com deal was found by Cheapflights users on 7/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/229:15 amSTL - FCO
2 stops17h 00mAir Canada
Fri 11/71:35 pmFCO - STL
2 stops32h 54mAir Canada
Deal found 7/2$509
This CheapOair deal was found by Cheapflights users on 7/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:05 pmSTL - MXP
2 stops34h 50mAir Canada
Sun 12/71:05 pmMXP - STL
2 stops40h 27mAir Canada
Deal found 7/3$509
This Delta deal was found by Cheapflights users on 7/3. 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 11/97:20 amSTL - FCO
2 stops16h 45mDelta
Fri 11/219:20 amFCO - STL
2 stops21h 19mDelta
Deal found 7/3$511
This United Airlines deal was found by Cheapflights users on 7/2. 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 12/312:24 pmSTL - MXP
1 stop12h 06mUnited Airlines
Sun 12/71:05 pmMXP - STL
2 stops32h 15mUnited Airlines
Deal found 7/2$511
This Delta deal was found by Cheapflights users on 7/3. 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 11/66:00 amSTL - MXP
2 stops20h 45mDelta
Tue 11/1811:05 amMXP - STL
1 stop17h 54mDelta
Deal found 7/3$539
This KLM deal was found by Cheapflights users on 7/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:20 amSTL - MXP
2 stops19h 25mKLM
Tue 11/1811:05 amMXP - STL
1 stop17h 54mKLM
Deal found 7/2$558
This Ovago deal was found by Cheapflights users on 7/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:49 amSTL - MXP
1 stop12h 41mLufthansa
Tue 11/186:40 pmMXP - STL
1 stop26h 15mLufthansa
Deal found 7/1$560
This United Airlines deal was found by Cheapflights users on 7/2. 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 12/311:45 amSTL - LIN
2 stops19h 20mUnited Airlines
Sun 12/76:15 amLIN - STL
1 stop14h 40mUnited Airlines
Deal found 7/2$562
This Iberia deal was found by Cheapflights users on 7/2. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/165:52 pmSTL - FCO
1 stop31h 13mIberia
Thu 9/117:35 amFCO - STL
2 stops19h 41mIberia
Deal found 7/2$575

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 July 3, 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

Wed 12/3

4:05 pm-9:55 am

2 stops34h 50m

Milan Malpensa

Sun 12/7

7:00 am-1:55 pm

1 stop13h 55m

$507

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 12/3

4:05 pm-9:55 am

2 stops34h 50m

Milan Malpensa

Sun 12/7

1:05 pm-10:32 pm

2 stops40h 27m

$509

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 12/3

12:24 pm-7:30 am

1 stop12h 06m

Milan Malpensa

Sun 12/7

1:05 pm-2:20 pm

2 stops32h 15m

$511

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 8/19

1:30 pm-9:15 am

1 stop12h 45m

Rome Fiumicino

Thu 9/11

11:30 am-12:25 pm

2 stops31h 55m

$539

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 8/17

1:30 pm-9:15 am

1 stop12h 45m

Rome Fiumicino

Thu 9/11

2:30 pm-2:19 pm

2 stops30h 49m

$546

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 12/3

1:30 pm-9:05 am

1 stop12h 35m

Milan Malpensa

Sun 12/7

12:00 pm-4:40 pm

1 stop35h 40m

$549

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 10/1

1:30 pm-9:15 am

1 stop12h 45m

Rome Fiumicino

Wed 10/15

7:10 am-1:30 pm

1 stop13h 20m

$555

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Thu 11/6

11:49 am-7:30 am

1 stop12h 41m

Milan Malpensa

Tue 11/18

6:40 pm-1:55 pm

1 stop26h 15m

$560

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Wed 12/3

11:45 am-2:05 pm

2 stops19h 20m

Milan Linate

Sun 12/7

6:15 am-1:55 pm

1 stop14h 40m

$562

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sat 8/16

5:11 pm-7:35 am

1 stop31h 24m

Rome Fiumicino

Wed 9/10

11:35 am-7:07 pm

1 stop14h 32m

$566

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 $1,211). 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 July 3, 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.

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 July 3, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Austrian 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.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
809 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,306 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Air Canada ($326), American Airlines ($335), and United Airlines ($424).

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

    Most travelers choose Lambert-St Louis - Rome Fiumicino, Lambert-St Louis - Venice Marco Polo or Lambert-St Louis - Milan Malpensa 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 $1,211). 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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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$573Average$968FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$586Average$1,281FlexibilityNo cancel feeOn-time70%
DeltaCheapest$670Average$1,135FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$675Average$1,333FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$687Average$1,219FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$713Average$1,162FlexibilityNo cancel feeOn-time71%
IberiaCheapest$739Average$1,273FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$784Average$1,206FlexibilityNo cancel feeOn-time67%

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