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

United Airlines, Lufthansa, and British Airways can get you from St. Louis to Italy in just under 15h 25m. Your travel time can differ by up to 10h 01m. St. Louis and Italy are separated by a distance of 4898 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 Lufthansa ($265), United Airlines ($322), and Air Canada ($366).

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.

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).

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 - Milan Linate when deciding on the best route from St. Louis to Italy.

What are the most popular airlines that fly from St. Louis to Italy?

United Airlines, American Airlines and Delta are the most popular airlines when flying from St. Louis to Italy.

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

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.

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.

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.

$264+ Flights from St. Louis to Italy

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Cheap 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 January 2, 2026.

Wed 12/319:47 amSTL - NAP

2 stops17h 03mKLM

Fri 1/26:35 amNAP - STL

2 stops17h 24mKLM

Deal found 12/30

$2,223

Wed 12/313:50 pmSTL - NAP

1 stop19h 25mLufthansa

Fri 1/21:15 pmNAP - STL

2 stops17h 28mLufthansa

Deal found 12/30

$2,641

Wed 12/3111:05 amSTL - NAP

3 stops24h 10mMultiple Airlines

Fri 1/210:10 amNAP - STL

2 stops36h 19mMultiple Airlines

Deal found 12/30

$5,545

Best flights from St. Louis to Italy
Discover carefully curated flight deals from St. Louis to Italy that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 2, 2026.

Wed 4/157:45 amSTL - MXP

1 stop22h 35mUnited Airlines

Thu 4/2312:20 pmMXP - STL

2 stops39h 48mUnited Airlines

Deal found 12/31

$471

Mon 2/96:40 pmSTL - BLQ

2 stops15h 25mLufthansa

Mon 2/1610:15 amBLQ - STL

2 stops18h 25mLufthansa

Deal found 1/1

$482

Wed 4/151:29 pmSTL - NAP

2 stops25h 26mBritish Airways

Thu 4/237:50 amNAP - STL

2 stops22h 58mBritish Airways

Deal found 1/1

$488

Wed 1/284:05 pmSTL - CTA

2 stops33h 00mAir Canada

Thu 3/129:10 amCTA - STL

2 stops36h 19mAir Canada

Deal found 12/31

$500

Thu 3/194:05 pmSTL - MXP

2 stops22h 40mMultiple Airlines

Tue 3/3112:20 pmMXP - STL

1 stop34h 04mMultiple Airlines

Deal found 1/2

$501

Mon 2/97:10 amSTL - MXP

1 stop18h 55mDelta

Tue 2/176:55 amMXP - STL

2 stops20h 48mDelta

Deal found 12/31

$502

Mon 1/269:59 amSTL - CTA

2 stops25h 31mKLM

Mon 3/163:25 pmCTA - STL

2 stops31h 07mKLM

Deal found 12/31

$558

Wed 3/1812:04 pmSTL - MXP

1 stop14h 01mScandinavian Airlines

Sun 3/2911:40 amMXP - STL

1 stop28h 25mScandinavian Airlines

Deal found 1/1

$577

Fri 5/111:44 amSTL - LIN

2 stops15h 11mAmerican Airlines

Wed 5/611:10 amLIN - STL

2 stops18h 04mAmerican Airlines

Deal found 12/31

$656

Tue 4/712:06 pmSTL - FCO

1 stop16h 59mFinnair

Tue 4/146:45 pmFCO - STL

2 stops30h 32mFinnair

Deal found 12/31

$657

Sat 2/2112:15 pmSTL - FLR

2 stops27h 25mLufthansa

Sun 3/16:30 amFLR - STL

1 stop14h 25mLufthansa

Deal found 12/31

$487

Sun 2/18:30 amSTL - FCO

1 stop17h 00mUnited Airlines

Mon 2/911:15 amFCO - STL

2 stops34h 15mUnited Airlines

Deal found 1/1

$488

Sat 2/212:25 pmSTL - FLR

2 stops14h 20mBritish Airways

Sun 3/112:40 pmFLR - STL

2 stops41h 24mBritish Airways

Deal found 12/31

$489

Thu 1/296:00 amSTL - FCO

1 stop21h 30mDelta

Tue 2/1012:40 pmFCO - STL

1 stop27h 13mDelta

Deal found 1/1

$508

Fri 3/204:05 pmSTL - LIN

2 stops20h 45mMultiple Airlines

Fri 3/272:55 pmLIN - STL

2 stops30h 34mMultiple Airlines

Deal found 1/1

$508

Fri 3/202:00 pmSTL - MXP

2 stops22h 20mBritish Airways

Mon 3/307:40 amMXP - STL

2 stops22h 18mBritish Airways

Deal found 1/1

$492

Wed 1/286:40 pmSTL - CTA

2 stops39h 55mLufthansa

Mon 3/1612:15 pmCTA - STL

2 stops35h 44mLufthansa

Deal found 12/31

$498

Wed 3/187:40 amSTL - MXP

2 stops19h 15mUnited Airlines

Sun 3/2912:20 pmMXP - STL

2 stops51h 15mUnited Airlines

Deal found 1/1

$499

Fri 1/306:57 pmSTL - FCO

1 stop32h 33mDelta

Sat 2/712:40 pmFCO - STL

1 stop30h 14mDelta

Deal found 1/1

$508

Thu 1/294:05 pmSTL - VRN

2 stops38h 45mAir Canada

Mon 2/22:35 pmVRN - STL

2 stops31h 54mAir Canada

Deal found 12/30

$563

Sun 1/2512:00 pmSTL - CTA

2 stops20h 00mKLM

Mon 3/163:25 pmCTA - STL

2 stops31h 07mKLM

Deal found 12/31

$574

Sat 2/147:41 amSTL - BLQ

2 stops21h 59mUnited Airlines

Sat 2/216:00 amBLQ - STL

2 stops23h 14mUnited Airlines

Deal found 12/30

$499

Mon 2/164:05 pmSTL - GOA

2 stops15h 35mMultiple Airlines

Mon 2/233:25 pmGOA - STL

2 stops55h 04mMultiple Airlines

Deal found 1/1

$558

Mon 1/263:45 pmSTL - CTA

2 stops24h 25mKLM

Sun 3/157:55 pmCTA - STL

2 stops26h 37mKLM

Deal found 12/31

$606

Thu 1/298:30 amSTL - FCO

1 stop17h 00mUnited Airlines

Sun 2/812:45 pmFCO - STL

1 stop33h 44mUnited Airlines

Deal found 1/1

$506

Fri 5/13:30 pmSTL - LIN

1 stop16h 10mLufthansa

Wed 5/66:50 amLIN - STL

2 stops16h 36mLufthansa

Deal found 12/31

$567

Thu 3/126:32 amSTL - VCE

2 stops21h 48mDelta

Wed 3/1812:20 pmVCE - STL

2 stops26h 45mDelta

Deal found 12/31

$597

Sat 1/249:59 amSTL - CTA

2 stops30h 11mMultiple Airlines

Mon 3/162:05 pmCTA - STL

2 stops32h 27mMultiple Airlines

Deal found 12/31

$608

Wed 2/119:57 amSTL - LIN

2 stops18h 58mUnited Airlines

Mon 2/166:15 amLIN - STL

2 stops21h 50mUnited Airlines

Deal found 1/1

$507

Thu 2/1910:37 amSTL - FLR

2 stops18h 08mBritish Airways

Wed 4/297:05 amFLR - STL

2 stops18h 22mBritish Airways

Deal found 12/30

$617

Last-minute flights from St. Louis to Italy
Discover last-minute flight deals from St. Louis to Italy. Data last updated January 2, 2026 and is based on user searches.

Wed 1/283:50 pmSTL - NAP

1 stop19h 25mLufthansa

Wed 2/41:15 pmNAP - STL

2 stops17h 44mLufthansa

Deal found 12/30

$487

Wed 1/286:40 pmSTL - CTA

2 stops39h 55mLufthansa

Mon 3/1612:15 pmCTA - STL

2 stops35h 44mLufthansa

Deal found 12/31

$498

Wed 1/289:57 amSTL - VCE

2 stops19h 48mUnited Airlines

Wed 2/46:55 amVCE - STL

2 stops39h 34mUnited Airlines

Deal found 12/31

$500

Wed 1/284:05 pmSTL - CTA

2 stops33h 00mAir Canada

Thu 3/129:10 amCTA - STL

2 stops36h 19mAir Canada

Deal found 12/31

$500

Thu 1/298:30 amSTL - FCO

1 stop17h 00mUnited Airlines

Mon 2/911:15 amFCO - STL

2 stops34h 15mUnited Airlines

Deal found 1/1

$488

Fri 1/303:50 pmSTL - MXP

1 stop15h 05mLufthansa

Fri 2/69:10 amMXP - STL

2 stops20h 48mLufthansa

Deal found 12/31

$445

Fri 1/306:40 pmSTL - MXP

2 stops15h 00mMultiple Airlines

Fri 2/61:05 pmMXP - STL

2 stops32h 23mMultiple Airlines

Deal found 12/31

$470

Fri 1/306:40 pmSTL - LIN

2 stops17h 10mLufthansa

Fri 2/69:35 amLIN - STL

2 stops21h 24mLufthansa

Deal found 12/31

$486

Fri 1/304:05 pmSTL - FCO

2 stops58h 20mAir Canada

Mon 2/911:15 amFCO - STL

2 stops42h 43mAir Canada

Deal found 1/1

$495

Fri 1/306:40 pmSTL - FCO

2 stops33h 25mAir Canada

Sat 2/711:15 amFCO - STL

2 stops34h 15mAir Canada

Deal found 1/1

$496

Sat 1/3111:22 amSTL - FCO

1 stop13h 33mLufthansa

Sat 2/79:40 amFCO - STL

2 stops16h 47mLufthansa

Deal found 1/1

$487

Sat 1/318:05 amSTL - FCO

2 stops16h 50mUnited Airlines

Sat 2/711:15 amFCO - STL

2 stops34h 15mUnited Airlines

Deal found 1/1

$493

One-way flights from St. Louis to Italy
Search for one-way flight options from St. Louis to Italy. Find affordable one-way fares based on user searches. Data last updated January 2, 2026.

Fri 2/611:18 amSTL - FCO

3 stops40h 07mMultiple Airlines

Deal found 1/1

$264

Mon 4/201:29 pmSTL - NAP

2 stops17h 56mBritish Airways

Deal found 12/31

$267

Tue 5/197:30 amSTL - MXP

2 stops19h 50mAir Canada

Deal found 1/1

$272

Tue 5/195:30 pmSTL - LIN

2 stops13h 25mAir France

Deal found 12/31

$272

Tue 5/197:30 amSTL - LIN

2 stops21h 30mAir Canada

Deal found 12/31

$290

Mon 3/97:52 amSTL - FCO

2 stops35h 33mMultiple Airlines

Deal found 1/1

$296

Tue 3/104:51 pmSTL - FCO

3 stops50h 24mMultiple Airlines

Deal found 1/1

$313

Sun 3/2911:21 amSTL - VCE

3 stops50h 49mMultiple Airlines

Deal found 1/2

$382

Wed 3/1111:32 amSTL - FCO

3 stops24h 18mMultiple Airlines

Deal found 1/1

$395

Tue 2/171:11 pmSTL - VCE

2 stops16h 34mLufthansa

Deal found 1/1

$397

Mon 3/97:40 amSTL - FCO

1 stop18h 05mUnited Airlines

Deal found 1/1

$399

Tue 2/173:49 pmSTL - VCE

3 stops44h 06mMultiple Airlines

Deal found 1/1

$402

Find flight deals from St. Louis to Italy

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$438 (Kiwi.com)
One-way from	$264 (Kiwi.com)
Popular in	June
Cheapest in	November
Average price	$754

Provider with most accurate pricing for Lambert-St Louis-Rome (ROM) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Rome (ROM) flights.

Search Deals

From Lambert-St Louis to Italy

Search Deals

One-way flight from Lambert-St Louis to Italy

Search Deals

Highest demand for flights based on searches. 25% potential increase in price ($349 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($55 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 4/15

7:45 am-1:20 pm

1 stop22h 35m

Milan Malpensa

Thu 4/23

12:20 pm-9:08 pm

2 stops39h 48m

$471

St. LouisBologna

STL - BLQ

STLBLQ

Lambert-St Louis

Mon 2/9

6:40 pm-5:05 pm

2 stops15h 25m

Bologna Guglielmo Marconi

Mon 2/16

10:15 am-9:40 pm

2 stops18h 25m

$482

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Sat 2/21

12:15 pm-10:40 pm

2 stops27h 25m

Florence Peretola

Sun 3/1

6:30 am-1:55 pm

1 stop14h 25m

$487

St. LouisNaples

STL - NAP

STLNAP

Lambert-St Louis

Wed 4/15

1:29 pm-9:55 pm

2 stops25h 26m

Naples

Thu 4/23

7:50 am-11:48 pm

2 stops22h 58m

$488

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 2/1

8:30 am-8:30 am

1 stop17h 00m

Rome Fiumicino

Mon 2/9

11:15 am-2:30 pm

2 stops34h 15m

$488

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Sat 2/21

2:25 pm-11:45 am

2 stops14h 20m

Florence Peretola

Sun 3/1

12:40 pm-11:04 pm

2 stops41h 24m

$489

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Fri 3/20

2:00 pm-6:20 pm

2 stops22h 20m

Milan Malpensa

Mon 3/30

7:40 am-10:58 pm

2 stops22h 18m

$492

St. LouisCatania

STL - CTA

STLCTA

Lambert-St Louis

Wed 1/28

6:40 pm-5:35 pm

2 stops39h 55m

Catania Fontanarossa

Mon 3/16

12:15 pm-5:59 pm

2 stops35h 44m

$498

St. LouisMilan

STL - MXP

STLMXP

Lambert-St Louis

Wed 3/18

7:40 am-8:55 am

2 stops19h 15m

Milan Malpensa

Sun 3/29

12:20 pm-8:35 am

2 stops51h 15m

$499

St. LouisBologna

STL - BLQ

STLBLQ

Lambert-St Louis

Sat 2/14

7:41 am-12:40 pm

2 stops21h 59m

Bologna Guglielmo Marconi

Sat 2/21

6:00 am-10:14 pm

2 stops23h 14m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 60 results

...

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 $468). Flying from St. Louis to Italy in June is currently the most expensive (average of $1,009). 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.

Reviews of airlines servicing Italy

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.

Delta

7.9

Good

8,020 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,020 reviews

Delta

7.9

Good

8,020 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,134 reviews

Delta

7.9

Good

8,020 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,072 reviews

Delta

7.9

Good

8,020 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air Canada

7.1

Good

10,571 reviews

Delta

7.9

Good

8,020 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Lufthansa

6.8

Okay

7,675 reviews

Delta

7.9

Good

8,020 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

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, Lufthansa, and British Airways can get you from St. Louis to Italy in just under 15h 25m. Your travel time can differ by up to 10h 01m. St. Louis and Italy are separated by a distance of 4898 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 Lufthansa ($265), United Airlines ($322), and Air Canada ($366).
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 - Milan Linate 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 $468). Flying from St. Louis to Italy in June is currently the most expensive (average of $1,009). 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

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$472	Average$827	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$485	Average$1,066	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$493	Average$1,223	FlexibilityNo cancel fee	On-time76%
Delta	Cheapest$498	Average$1,132	FlexibilityNo cancel fee	On-timeN/A
Iberia	Cheapest$536	Average$1,273	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$555	Average$1,003	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$594	Average$1,054	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$705	Average$1,202	FlexibilityNo cancel fee	On-time67%

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$264+ 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Italy with Cheapflights

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Cheap flight deals from St. Louis to Italy

Cheapest flights from St. Louis to ItalyExplore 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 January 2, 2026.

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 January 2, 2026.

Find 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 January 2, 2026.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Italy that are best for you.

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.

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?

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 January 2, 2026.

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.

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.

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Alternative routes for St. Louis to Italy

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Top 8 airlines flying from St. Louis to Italy

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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 January 2, 2026.