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 Scandinavian Airlines ($559), British Airways ($562), and KLM ($571).

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 - Venice Marco Polo when deciding on the best route from St. Louis to Italy.

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

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

How far in advance should I book a flight from St. Louis to Italy?

Travelers have found it’s best to book a flight 40 days in advance to save up to 98% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 40 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Italy 1-2 weeks in advance for as low as $1,320, or $1,420 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to Italy?

February is one of the best times of the year to fly to Italy from St. Louis. Prices for February average $1,124 per person but you can even find prices for as low as $662. The most expensive prices can be found in the month of June. Opting for a February flight can save you 46% on your journey compared to booking in June

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.

$780+ Flights from St. Louis to Italy

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Cheap flight deals from St. Louis to Italy

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$701 (Scandinavian Airlines)
One-way from	$361 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$1,118

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. 22% potential increase in price ($322 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 3, 2025.

Thu 11/63:15 pmSTL - MXP

1 stop14h 35mUnited Airlines

Tue 11/1812:20 pmMXP - STL

2 stops34h 01mUnited Airlines

Deal found 4/1

$606

Thu 11/66:01 amSTL - MXP

2 stops19h 09mMultiple Airlines

Tue 11/1810:15 amMXP - STL

2 stops18h 26mMultiple Airlines

Deal found 4/1

$624

Mon 9/83:30 pmSTL - NAP

2 stops20h 15mScandinavian Airlines

Tue 9/167:35 pmNAP - STL

2 stops35h 04mScandinavian Airlines

Deal found 4/1

$626

Thu 11/610:30 amSTL - LIN

2 stops23h 30mUnited Airlines

Tue 11/186:15 amLIN - STL

2 stops16h 11mUnited Airlines

Deal found 4/1

$655

Thu 11/62:49 pmSTL - LIN

2 stops18h 01mAmerican Airlines

Tue 11/187:25 amLIN - STL

2 stops17h 52mAmerican Airlines

Deal found 4/1

$657

Tue 10/141:30 pmSTL - MXP

1 stop13h 30mAir Canada

Thu 10/2312:15 pmMXP - STL

2 stops33h 03mAir Canada

Deal found 4/1

$662

Thu 11/62:18 pmSTL - FLR

2 stops19h 02mDelta

Tue 11/186:35 amFLR - STL

2 stops23h 27mDelta

Deal found 3/31

$667

Mon 8/253:30 pmSTL - MXP

2 stops34h 05mScandinavian Airlines

Thu 9/49:15 amMXP - STL

2 stops18h 32mScandinavian Airlines

Deal found 3/31

$670

Thu 10/234:05 pmSTL - NAP

2 stops18h 50mUnited Airlines

Mon 11/32:10 pmNAP - STL

2 stops55h 08mUnited Airlines

Deal found 4/2

$692

Wed 10/153:30 pmSTL - LIN

1 stop13h 30mMultiple Airlines

Wed 10/2212:45 pmLIN - STL

2 stops33h 31mMultiple Airlines

Deal found 4/1

$711

Tue 9/2311:05 amSTL - FLR

2 stops22h 40mUnited Airlines

Tue 9/302:45 pmFLR - STL

2 stops36h 12mUnited Airlines

Deal found 4/2

$713

Tue 10/141:30 pmSTL - LIN

2 stops15h 50mAir Canada

Thu 10/237:05 amLIN - STL

2 stops15h 11mAir Canada

Deal found 4/1

$713

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 April 3, 2025.

Mon 8/253:30 pmSTL - MXP

2 stops34h 05mScandinavian Airlines

Thu 9/49:15 amMXP - STL

2 stops18h 32mScandinavian Airlines

Deal found 4/1

$701

Tue 9/2311:05 amSTL - FLR

2 stops22h 40mUnited Airlines

Tue 9/302:45 pmFLR - STL

2 stops36h 12mUnited Airlines

Deal found 4/2

$713

Sun 4/133:30 pmSTL - FLR

1 stop14h 35mLufthansa

Tue 4/291:35 pmFLR - STL

2 stops16h 40mLufthansa

Deal found 4/2

$719

Sun 4/137:12 pmSTL - FLR

2 stops16h 48mDelta

Tue 4/296:25 amFLR - STL

2 stops18h 37mDelta

Deal found 4/2

$727

Tue 5/131:30 pmSTL - BLQ

2 stops26h 05mMultiple Airlines

Sun 5/186:05 amBLQ - STL

2 stops20h 53mMultiple Airlines

Deal found 4/1

$752

Tue 5/131:30 pmSTL - BLQ

2 stops16h 15mAir Canada

Sun 5/186:05 amBLQ - STL

2 stops20h 53mAir Canada

Deal found 3/31

$762

Mon 5/51:45 pmSTL - VCE

1 stop13h 10mBritish Airways

Thu 5/1512:15 pmVCE - STL

1 stop15h 43mBritish Airways

Deal found 4/2

$776

Wed 5/710:31 amSTL - NAP

1 stop19h 29mAmerican Airlines

Wed 5/143:00 pmNAP - STL

1 stop13h 52mAmerican Airlines

Deal found 4/2

$794

Wed 4/3012:46 pmSTL - FCO

1 stop15h 19mKLM

Wed 5/149:45 amFCO - STL

1 stop13h 50mKLM

Deal found 4/2

$812

Thu 5/810:31 amSTL - FCO

1 stop15h 39mIberia

Fri 5/1611:05 amFCO - STL

1 stop17h 47mIberia

Deal found 4/2

$846

Mon 9/15:40 pmSTL - FLR

2 stops22h 05mAir France

Sat 12/208:45 pmFLR - STL

2 stops31h 44mAir France

Deal found 4/2

$1,090

Tue 4/83:29 pmSTL - VCE

2 stops36h 56mAer Lingus

Sat 4/1912:10 pmVCE - STL

2 stops17h 02mAer Lingus

Deal found 4/2

$1,099

Last-minute flights from St. Louis to Italy
Discover last-minute flight deals from St. Louis to Italy. Data last updated April 3, 2025 and is based on user searches.

Tue 4/87:05 amSTL - VCE

1 stop21h 50mKLM

Sat 4/1911:20 amVCE - STL

1 stop14h 30mKLM

Deal found 4/1

$736

Tue 4/81:48 pmSTL - VCE

2 stops14h 57mMultiple Airlines

Sat 4/1911:20 amVCE - STL

1 stop14h 30mMultiple Airlines

Deal found 4/1

$753

Tue 4/88:00 amSTL - VCE

2 stops18h 05mUnited Airlines

Sat 4/192:50 pmVCE - STL

2 stops31h 57mUnited Airlines

Deal found 4/1

$756

Tue 4/83:29 pmSTL - VCE

2 stops36h 56mAer Lingus

Sat 4/1912:10 pmVCE - STL

2 stops17h 02mAer Lingus

Deal found 4/2

$1,099

Tue 4/82:03 pmSTL - VCE

1 stop12h 52mBritish Airways

Sat 4/1912:15 pmVCE - STL

1 stop15h 43mBritish Airways

Deal found 4/2

$1,322

Tue 4/87:05 amSTL - VCE

2 stops19h 15mDelta

Sat 4/1911:20 amVCE - STL

1 stop19h 16mDelta

Deal found 4/2

$1,333

Tue 4/81:12 pmSTL - VCE

2 stops21h 48mLufthansa

Fri 4/186:00 amVCE - STL

1 stop14h 30mLufthansa

Deal found 4/1

$2,977

Wed 4/912:00 pmSTL - FCO

1 stop14h 10mAmerican Airlines

Tue 4/2210:00 amFCO - STL

1 stop16h 29mAmerican Airlines

Deal found 4/3

$812

Wed 4/96:30 amSTL - FCO

2 stops19h 45mUnited Airlines

Tue 4/228:00 amFCO - STL

2 stops20h 48mUnited Airlines

Deal found 4/2

$825

Wed 4/91:05 pmSTL - FCO

1 stop15h 00mDelta

Tue 4/226:30 amFCO - STL

2 stops22h 06mDelta

Deal found 4/3

$826

Wed 4/95:35 pmSTL - FCO

1 stop31h 20mLufthansa

Sun 4/207:10 amFCO - STL

1 stop13h 20mLufthansa

Deal found 4/2

$2,942

Thu 4/105:45 amSTL - FCO

1 stop20h 25mBritish Airways

Tue 4/2210:00 amFCO - STL

1 stop16h 29mBritish Airways

Deal found 4/3

$872

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 April 3, 2025.

Thu 7/105:45 pmSTL - FCO

2 stops48h 10mMultiple Airlines

Deal found 4/2

$361

Mon 6/305:45 pmSTL - NAP

3 stops55h 20mMultiple Airlines

Deal found 4/2

$427

Tue 4/154:57 pmSTL - MXP

2 stops40h 23mMultiple Airlines

Deal found 4/1

$523

Tue 4/154:57 pmSTL - LIN

2 stops42h 33mMultiple Airlines

Deal found 4/1

$541

Sat 5/312:47 pmSTL - VCE

2 stops38h 13mScandinavian Airlines

Deal found 4/1

$559

Tue 9/304:52 pmSTL - FLR

2 stops22h 28mBritish Airways

Deal found 4/2

$562

Tue 9/3011:51 amSTL - FLR

2 stops14h 09mKLM

Deal found 4/2

$571

Sat 7/54:00 pmSTL - BLQ

2 stops41h 40mUnited Airlines

Deal found 4/2

$581

Sat 7/54:00 pmSTL - BLQ

2 stops42h 35mAir Canada

Deal found 4/1

$583

Sat 5/31:30 pmSTL - VCE

2 stops37h 10mAir Canada

Deal found 4/2

$600

Tue 9/303:15 pmSTL - FLR

3 stops39h 50mUnited Airlines

Deal found 4/2

$601

Tue 4/1510:40 amSTL - MXP

1 stop19h 40mUnited Airlines

Deal found 4/1

$602

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Sun 4/13

3:30 pm-1:05 pm

1 stop14h 35m

Florence Peretola

Tue 4/29

1:35 pm-11:15 pm

2 stops16h 40m

$719

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Sun 4/20

10:50 am-9:00 am

2 stops15h 10m

Florence Peretola

Tue 4/29

6:25 am-6:02 pm

2 stops18h 37m

$722

St. LouisFlorence

STL - FLR

STLFLR

Lambert-St Louis

Sun 4/20

3:30 pm-2:05 pm

1 stop15h 35m

Florence Peretola

Tue 4/29

10:30 am-9:48 pm

2 stops42h 18m

$729

St. LouisVenice

STL - VCE

STLVCE

Lambert-St Louis

Tue 4/8

7:05 am-11:55 am

1 stop21h 50m

Venice Marco Polo

Sat 4/19

11:20 am-6:50 pm

1 stop14h 30m

$736

St. LouisBologna

STL - BLQ

STLBLQ

Lambert-St Louis

Tue 5/13

1:30 pm-10:35 pm

2 stops26h 05m

Bologna Guglielmo Marconi

Sun 5/18

6:05 am-7:58 pm

2 stops20h 53m

$752

St. LouisVenice

STL - VCE

STLVCE

Lambert-St Louis

Tue 4/8

1:48 pm-11:45 am

2 stops14h 57m

Venice Marco Polo

Sat 4/19

11:20 am-6:50 pm

1 stop14h 30m

$753

St. LouisVenice

STL - VCE

STLVCE

Lambert-St Louis

Tue 4/8

8:00 am-9:05 am

2 stops18h 05m

Venice Marco Polo

Sat 4/19

2:50 pm-3:47 pm

2 stops31h 57m

$756

St. LouisBologna

STL - BLQ

STLBLQ

Lambert-St Louis

Tue 5/13

1:30 pm-12:45 pm

2 stops16h 15m

Bologna Guglielmo Marconi

Sun 5/18

6:05 am-7:58 pm

2 stops20h 53m

$762

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 4/20

3:30 pm-9:15 am

2 stops34h 45m

Rome Fiumicino

Tue 5/6

11:30 am-7:58 pm

1 stop15h 28m

$769

St. LouisVenice

STL - VCE

STLVCE

Lambert-St Louis

Mon 5/5

1:45 pm-9:55 am

1 stop13h 10m

Venice Marco Polo

Thu 5/15

12:15 pm-8:58 pm

1 stop15h 43m

$776

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 55 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 $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?

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

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

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

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

7,897 reviews

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

7,897 reviews

Delta

8.0

Very good

7,897 reviews

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

1,323 reviews

Delta

8.0

Very good

7,897 reviews

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

771 reviews

Delta

8.0

Very good

7,897 reviews

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

7.4

Good

1,427 reviews

Delta

8.0

Very good

7,897 reviews

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

8,619 reviews

Delta

8.0

Very good

7,897 reviews

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

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 Scandinavian Airlines ($559), British Airways ($562), and KLM ($571).
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 - Venice Marco Polo 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

Browse thousands of different options on Cheapflights for your next trip

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Naples Airport car rentals

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Top 8 airlines flying from St. Louis to Italy

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$573	Average$1,061	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$670	Average$1,152	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$672	Average$1,236	FlexibilityNo cancel fee	On-time70%
Lufthansa	Cheapest$675	Average$1,302	FlexibilityNo cancel fee	On-time76%
Iberia	Cheapest$681	Average$1,273	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$699	Average$1,273	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$705	Average$1,445	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$720	Average$1,221	FlexibilityNo cancel fee	On-time71%

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$361+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.

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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 3, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 April 3, 2025.

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 3, 2025.

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?

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 3, 2025.

Rainfall in Italy by month

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

Temperature in Italy by month

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

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 3, 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.

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?

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

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?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

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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 April 3, 2025.