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

United Airlines and Air Canada can get you from St. Louis to Rome in just under 12h 20m. Your travel time can differ by up to 22h. The distance from St. Louis to Rome is about 5050 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from St. Louis to Rome round-trip?

According to our current data, Iberia ($536), United Airlines ($559), and Delta ($587) offers the cheapest pricing from St. Louis to Rome. You may be able to fly from St. Louis to Rome for 49% less than the average price by searching for these airlines.

In terms of precipitation, rainfall in Rome 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 Rome when rainfall is around 0.6 in.

If weather is an important factor for your trip to Rome, 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 airlines that fly from St. Louis to Rome?

When booking a flight from St. Louis to Rome, you may want to consider flying on American Airlines, United Airlines or Delta as they are the most popular for this route.

Most accurate provider : When it comes to deals on St. Louis-Rome flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Rome flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Rome flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Rome flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Rome flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from St. Louis to Rome?

If you book a flight to Rome 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. There are 0 flights from Lambert-St Louis to Rome per day from 8 different airlines.

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

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

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

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

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

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

$292+ Cheap Flights from St. Louis to Rome

Q: How much does it cost to fly round-trip from St. Louis to Rome?

Airfare is below average for this route at the moment. St. Louis to Rome flights typically cost between $766 and $1,104 in November. The cheapest round-trip price found within the last 3 days was $488 on Lufthansa (Nov 17-Nov 26).

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Cheapflights Tip: The best prices from Lambert-St Louis to Rome are usually found in February or November, booked 12 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Find flight deals from St. Louis to Rome

Cheapest flights from St. Louis to Rome
Explore the most affordable flight options available from St. Louis to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

Mon 11/176:43 pmSTL - FCO

2 stops21h 17mLufthansa

Wed 11/267:05 amFCO - STL

1 stop13h 50mLufthansa

Deal found 10/13

$488

Thu 11/134:05 pmSTL - FCO

2 stops14h 55mMultiple Airlines

Wed 11/267:05 amFCO - STL

1 stop13h 50mMultiple Airlines

Deal found 10/14

$522

Tue 11/114:05 pmSTL - FCO

1 stop11h 50mMultiple Airlines

Fri 11/217:05 amFCO - STL

1 stop13h 50mMultiple Airlines

Deal found 10/12

$526

Mon 11/174:05 pmSTL - FCO

1 stop12h 00mMultiple Airlines

Wed 11/267:05 amFCO - STL

1 stop13h 50mMultiple Airlines

Deal found 10/13

$528

Sun 11/98:25 amSTL - FCO

1 stop17h 05mUnited Airlines

Fri 11/211:15 pmFCO - STL

2 stops40h 30mUnited Airlines

Deal found 10/12

$532

Thu 11/274:05 pmSTL - FCO

2 stops33h 50mAir Canada

Wed 12/101:10 pmFCO - STL

2 stops30h 05mAir Canada

Deal found 10/14

$534

Thu 12/411:25 amSTL - FCO

1 stop13h 20mUnited Airlines

Tue 12/91:10 pmFCO - STL

2 stops33h 30mUnited Airlines

Deal found 10/14

$539

Thu 12/44:05 pmSTL - FCO

2 stops34h 20mAir Canada

Tue 12/91:10 pmFCO - STL

2 stops32h 15mAir Canada

Deal found 10/14

$541

Best flights from St. Louis to Rome
Discover carefully curated flight deals from St. Louis to Rome that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2025.

Thu 11/134:05 pmSTL - FCO

2 stops14h 55mMultiple Airlines

Wed 11/267:05 amFCO - STL

1 stop13h 50mMultiple Airlines

Deal found 10/14

$522

Thu 11/271:10 pmSTL - FCO

1 stop12h 20mUnited Airlines

Wed 12/101:10 pmFCO - STL

2 stops30h 05mUnited Airlines

Deal found 10/14

$532

Mon 2/164:05 pmSTL - FCO

2 stops34h 20mAir Canada

Mon 2/2311:15 amFCO - STL

2 stops40h 45mAir Canada

Deal found 10/12

$534

Mon 11/174:05 pmSTL - FCO

1 stop12h 00mMultiple Airlines

Wed 11/267:05 amFCO - STL

1 stop13h 50mMultiple Airlines

Deal found 10/12

$526

Sun 11/96:43 pmSTL - FCO

2 stops16h 32mUnited Airlines

Fri 11/211:15 pmFCO - STL

2 stops32h 09mUnited Airlines

Deal found 10/12

$538

Mon 1/196:40 pmSTL - FCO

2 stops31h 45mAir Canada

Thu 1/2912:50 pmFCO - STL

2 stops35h 53mAir Canada

Deal found 10/13

$539

Tue 1/2011:22 amSTL - FCO

1 stop13h 33mUnited Airlines

Thu 1/2912:50 pmFCO - STL

2 stops30h 39mUnited Airlines

Deal found 10/13

$539

Mon 1/197:00 amSTL - FCO

1 stop17h 55mMultiple Airlines

Thu 1/2912:50 pmFCO - STL

2 stops35h 53mMultiple Airlines

Deal found 10/13

$539

Thu 11/271:10 pmSTL - FCO

1 stop12h 20mUnited Airlines

Thu 12/410:55 amFCO - STL

2 stops35h 45mUnited Airlines

Deal found 10/13

$539

Mon 1/196:40 pmSTL - FCO

2 stops31h 45mUnited Airlines

Thu 1/2912:50 pmFCO - STL

2 stops30h 39mUnited Airlines

Deal found 10/13

$539

Fri 11/2811:05 amSTL - FCO

1 stop13h 40mUnited Airlines

Fri 12/57:05 amFCO - STL

1 stop13h 50mUnited Airlines

Deal found 10/14

$541

Last-minute flights from St. Louis to Rome
Discover last-minute flight deals from St. Louis to Rome. Data last updated October 14, 2025 and is based on user searches.

Sun 11/98:25 amSTL - FCO

1 stop17h 05mUnited Airlines

Fri 11/211:15 pmFCO - STL

2 stops40h 30mUnited Airlines

Deal found 10/12

$532

Tue 11/114:05 pmSTL - FCO

1 stop11h 50mMultiple Airlines

Fri 11/217:05 amFCO - STL

1 stop13h 50mMultiple Airlines

Deal found 10/12

$526

Thu 11/134:05 pmSTL - FCO

2 stops14h 55mMultiple Airlines

Wed 11/267:05 amFCO - STL

1 stop13h 50mMultiple Airlines

Deal found 10/14

$522

Thu 11/1311:49 amSTL - FCO

2 stops18h 36mLufthansa

Wed 11/267:10 pmFCO - STL

2 stops53h 29mLufthansa

Deal found 10/14

$539

Mon 11/176:43 pmSTL - FCO

2 stops21h 17mLufthansa

Wed 11/267:05 amFCO - STL

1 stop13h 50mLufthansa

Deal found 10/13

$488

Mon 11/174:05 pmSTL - FCO

1 stop12h 00mMultiple Airlines

Wed 11/267:05 amFCO - STL

1 stop13h 50mMultiple Airlines

Deal found 10/13

$528

Wed 11/266:30 amSTL - FCO

2 stops19h 25mUnited Airlines

Wed 12/37:05 amFCO - STL

1 stop13h 50mUnited Airlines

Deal found 10/12

$541

Thu 11/274:05 pmSTL - FCO

2 stops33h 50mAir Canada

Wed 12/101:10 pmFCO - STL

2 stops30h 05mAir Canada

Deal found 10/14

$534

One-way flights from St. Louis to Rome
Search for one-way flight options from St. Louis to Rome. Find affordable one-way fares based on user searches. Data last updated October 14, 2025.

Sun 1/185:06 pmSTL - FCO

3 stops44h 59mMultiple Airlines

Deal found 10/12

$376

Fri 1/26:35 pmSTL - FCO

2 stops16h 05mLufthansa

Deal found 10/12

$436

Sat 2/142:42 pmSTL - FCO

2 stops15h 48mAmerican Airlines

Deal found 10/13

$439

Tue 11/1112:31 pmSTL - FCO

1 stop12h 14mLufthansa

Deal found 10/13

$441

Sat 2/148:30 amSTL - FCO

1 stop17h 00mUnited Airlines

Deal found 10/13

$443

Sun 1/183:50 pmSTL - FCO

1 stop13h 50mLufthansa

Deal found 10/12

$453

Thu 10/308:41 amSTL - FCO

1 stop20h 04mIberia

Deal found 10/12

$530

Sun 1/183:50 pmSTL - CIA

3 stops21h 10mMultiple Airlines

Deal found 10/12

$530

Thu 10/3011:49 amSTL - FCO

1 stop17h 06mLufthansa

Deal found 10/13

$533

Cheap flight deals from St. Louis to Rome

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$488 (Kiwi.com)
One-way from	$376 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$906

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 Rome (ROM)

Search Deals

One-way flight from Lambert-St Louis to Rome (ROM)

Search Deals

Highest demand for flights based on searches. 25% potential increase in price ($358 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Thu 11/13

4:05 pm-2:00 pm

2 stops14h 55m

Rome Fiumicino

Wed 11/26

7:05 am-1:55 pm

1 stop13h 50m

$522

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 11/17

4:05 pm-11:05 am

1 stop12h 00m

Rome Fiumicino

Wed 11/26

7:05 am-1:55 pm

1 stop13h 50m

$526

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Thu 11/27

1:10 pm-8:30 am

1 stop12h 20m

Rome Fiumicino

Wed 12/10

1:10 pm-12:15 pm

2 stops30h 05m

$532

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 2/16

4:05 pm-9:25 am

2 stops34h 20m

Rome Fiumicino

Mon 2/23

11:15 am-9:00 pm

2 stops40h 45m

$534

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 11/9

6:43 pm-6:15 pm

2 stops16h 32m

Rome Fiumicino

Fri 11/21

1:15 pm-2:24 pm

2 stops32h 09m

$538

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 1/19

6:40 pm-9:25 am

2 stops31h 45m

Rome Fiumicino

Thu 1/29

12:50 pm-5:43 pm

2 stops35h 53m

$539

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 1/20

11:22 am-7:55 am

1 stop13h 33m

Rome Fiumicino

Thu 1/29

12:50 pm-12:29 pm

2 stops30h 39m

$539

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 1/19

7:00 am-7:55 am

1 stop17h 55m

Rome Fiumicino

Thu 1/29

12:50 pm-5:43 pm

2 stops35h 53m

$539

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Thu 11/27

1:10 pm-8:30 am

1 stop12h 20m

Rome Fiumicino

Thu 12/4

10:55 am-3:40 pm

2 stops35h 45m

$539

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 1/19

6:40 pm-9:25 am

2 stops31h 45m

Rome Fiumicino

Thu 1/29

12:50 pm-12:29 pm

2 stops30h 39m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 18 results

Compare providers for flights from St. Louis to Rome

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Rome in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Rome flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Rome flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Rome flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Rome flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Rome flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Rome

Have a flexible travel schedule? Discover the best time to fly to Rome 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 Rome

How far ahead should I book a flight from St. Louis to Rome?

The best time to book flights from St. Louis to Rome is 10 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to Rome (average of $555). Flying from St. Louis to Rome 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 ROM?

When flying from St. Louis to Rome, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 36% versus a flight at noon.

How much does it cost to fly round-trip from St. Louis to Rome?

Reviews of airlines servicing Rome

Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from St. Louis to Rome. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,975 reviews

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.

Delta

8.0

Very good

7,975 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

United Airlines

7.4

Good

8,976 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

American Airlines

7.2

Good

11,042 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Air Canada

7.1

Good

10,297 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Iberia

7.0

Good

2,990 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Related info for your journey

What airport do you fly from for flights from St. Louis to Rome?
If you book a flight to Rome 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. There are 0 flights from Lambert-St Louis to Rome per day from 8 different airlines.
How long is the flight from St. Louis to Rome?
United Airlines and Air Canada can get you from St. Louis to Rome in just under 12h 20m. Your travel time can differ by up to 22h. The distance from St. Louis to Rome is about 5050 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from St. Louis to Rome round-trip?
According to our current data, Iberia ($536), United Airlines ($559), and Delta ($587) offers the cheapest pricing from St. Louis to Rome. You may be able to fly from St. Louis to Rome for 49% less than the average price by searching for these airlines.
Can I find deals for flights from St. Louis to Rome that include hotel bookings?
Yes. In addition to deals on St. Louis to Rome flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Rome?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Rome.
Can I find deals for business class flights from St. Louis to Rome?
Yes. Cheapflights offers flight deals from St. Louis to Rome 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 Rome?
Currently, August is the cheapest month in which you can book a flight from St. Louis to Rome (average of $555). Flying from St. Louis to Rome 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

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Top 8 airlines flying from St. Louis to Rome

Airline	Cheapest	Average	Flexibility	On-time
Iberia	Cheapest$536	Average$1,129	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$559	Average$1,157	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$587	Average$902	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$604	Average$1,082	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$665	Average$939	FlexibilityNo cancel fee	On-time71%
Lufthansa	Cheapest$671	Average$1,198	FlexibilityNo cancel fee	On-time76%
Air Canada	Cheapest$705	Average$1,167	FlexibilityNo cancel fee	On-time67%
British Airways	Cheapest$711	Average$1,213	FlexibilityNo cancel fee	On-time70%

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$292+ Cheap flights from St. Louis (STL) to Rome (ROM)

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Rome with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

Cheapflights Tip: The best prices from Lambert-St Louis to Rome are usually found in February or November, booked 12 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Find flight deals from St. Louis to Rome

Cheapest flights from St. Louis to RomeExplore the most affordable flight options available from St. Louis to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

Explore the most affordable flight options available from St. Louis to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

Cheap flight deals from St. Louis to Rome

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 Rome that are best for you.

Compare providers for flights from St. Louis to Rome

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Rome in October.

Best time to book a flight from St. Louis to Rome

Have a flexible travel schedule? Discover the best time to fly to Rome from St. Louis with our price prediction graph.

Cheapflights Insights

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

How far ahead should I book a flight from St. Louis to Rome?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Rome. Price data was last updated on October 10, 2025.

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

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

Find hourly flight availability from St. Louis to Rome. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 14, 2025.

How much does it cost to fly round-trip from St. Louis to Rome?

Reviews of airlines servicing Rome

Get insights into the airlines that provide service to Rome. 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 Rome. Reviews last updated October 14, 2025.

Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from St. Louis to Rome. Users can see the overall rating for each airline as well as how each is rated 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 Rome. 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 Rome?

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

What are the cheapest airlines flying from St. Louis to Rome round-trip?

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

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

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

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

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Alternative routes for St. Louis to Rome

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Top 8 airlines flying from St. Louis to Rome

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Cheapest flights from St. Louis to Rome
Explore the most affordable flight options available from St. Louis to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.