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

Lufthansa, KLM, and British Airways can get you from St. Louis to Rome Fiumicino Airport in just under 17h 31m. Your travel time can differ by up to 3h 39m. Airlines will cover a distance of 5050 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from St. Louis to Rome Fiumicino Airport is Iberia. Our recent data shows that you can find tickets from as low as $536 on this airline. Additional options worth looking into are United Airlines and KLM, starting at $549 and $555 round-trip. Iberia is priced at 46% lower than the current average price of a flight leaving 3 months from now.

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

If weather is an important factor for your trip to Rome Fiumicino Airport, 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 Fiumicino Airport?

Consider American Airlines, United Airlines or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to Rome Fiumicino Airport.

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

Most trusted provider : When it comes to deals on St. Louis-Rome Fiumicino Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Fiumicino Airport 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 Fiumicino?

Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Rome Fiumicino. You should not have trouble finding flights to Rome Fiumicino from Lambert-St Louis; the airport handles an average of 0 outbound flights to Rome Fiumicino per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the St. Louis airport to Rome Fiumicino. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

How can I find direct flights from St. Louis to Leonardo da Vinci/Fiumicino?

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

Can I find deals for business class flights from St. Louis to Leonardo da Vinci/Fiumicino?

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

$369+ Flights from St. Louis to Rome Fiumicino Airport

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

Airfare is below average for this route at the moment. St. Louis to Rome Fiumicino Airport flights typically cost between $697 and $910 in January. The cheapest round-trip price found within the last 3 days was $456 on KLM (Jan 21-Jan 28).

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Find cheap flights from St. Louis to Leonardo da Vinci/Fiumicino with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Lambert-St Louis to Rome Fiumicino are usually found in January or November, booked 45 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to Leonardo da Vinci/Fiumicino

Cheapest flights from St. Louis to Leonardo da Vinci/Fiumicino
Explore the most affordable flight options available from St. Louis to Leonardo da Vinci/Fiumicino. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

Tue 12/307:00 amSTL - FCO

1 stop20h 30mKLM

Wed 1/1412:45 pmFCO - STL

2 stops17h 54mKLM

Deal found 12/2

$479

Tue 12/306:05 amSTL - FCO

2 stops18h 50mDelta

Wed 1/1412:45 pmFCO - STL

2 stops17h 54mDelta

Deal found 12/2

$483

Fri 12/510:56 amSTL - FCO

2 stops40h 44mAer Lingus

Thu 12/1111:20 amFCO - STL

2 stops19h 18mAer Lingus

Deal found 12/3

$935

Tue 12/301:05 pmSTL - FCO

1 stop12h 25mLufthansa

Tue 1/66:45 pmFCO - STL

1 stop26h 10mLufthansa

Deal found 12/2

$1,038

Mon 12/84:49 pmSTL - FCO

2 stops34h 51mAer Lingus

Wed 12/1711:20 amFCO - STL

2 stops36h 27mAer Lingus

Deal found 12/3

$1,049

Tue 12/306:35 pmSTL - FCO

2 stops35h 05mMultiple Airlines

Tue 1/68:20 amFCO - STL

2 stops38h 09mMultiple Airlines

Deal found 12/2

$1,077

Thu 12/43:22 pmSTL - FCO

2 stops36h 23mAer Lingus

Tue 12/911:20 amFCO - STL

2 stops36h 30mAer Lingus

Deal found 12/3

$1,267

Best flights from St. Louis to Leonardo da Vinci/Fiumicino
Discover carefully curated flight deals from St. Louis to Leonardo da Vinci/Fiumicino that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2025.

Fri 1/93:50 pmSTL - FCO

1 stop21h 10mLufthansa

Wed 1/1410:30 amFCO - STL

1 stop20h 29mLufthansa

Deal found 12/2

$448

Mon 3/24:05 pmSTL - FCO

1 stop12h 00mMultiple Airlines

Wed 3/117:05 amFCO - STL

1 stop13h 50mMultiple Airlines

Deal found 12/2

$448

Wed 1/219:59 amSTL - FCO

1 stop17h 31mKLM

Wed 1/2812:40 pmFCO - STL

1 stop17h 57mKLM

Deal found 12/3

$456

Wed 1/216:44 pmSTL - FCO

2 stops17h 36mBritish Airways

Wed 1/288:30 pmFCO - STL

2 stops28h 44mBritish Airways

Deal found 12/3

$457

Tue 3/311:46 amSTL - FCO

2 stops23h 09mFinnair

Tue 3/106:40 pmFCO - STL

2 stops33h 11mFinnair

Deal found 12/2

$463

Mon 3/22:24 pmSTL - FCO

2 stops16h 31mIberia

Wed 3/111:10 pmFCO - STL

1 stop15h 54mIberia

Deal found 12/2

$470

Sun 3/17:41 amSTL - FCO

2 stops17h 49mUnited Airlines

Fri 3/1312:20 pmFCO - STL

2 stops16h 39mUnited Airlines

Deal found 12/3

$476

Wed 1/2111:22 amSTL - FCO

1 stop13h 33mLufthansa

Wed 1/2810:30 amFCO - STL

1 stop20h 29mLufthansa

Deal found 12/2

$452

Tue 12/307:00 amSTL - FCO

1 stop20h 30mKLM

Wed 1/1412:45 pmFCO - STL

2 stops17h 54mKLM

Deal found 12/2

$479

Tue 3/37:41 amSTL - FCO

1 stop17h 04mUnited Airlines

Tue 3/109:45 amFCO - STL

1 stop19h 14mUnited Airlines

Deal found 12/2

$481

Last-minute flights from St. Louis to Leonardo da Vinci/Fiumicino
Discover last-minute flight deals from St. Louis to Leonardo da Vinci/Fiumicino. Data last updated December 4, 2025 and is based on user searches.

Tue 12/307:00 amSTL - FCO

1 stop20h 30mKLM

Wed 1/1412:45 pmFCO - STL

2 stops17h 54mKLM

Deal found 12/2

$479

Wed 1/72:54 pmSTL - FCO

2 stops24h 01mBritish Airways

Tue 1/138:25 pmFCO - STL

2 stops31h 50mBritish Airways

Deal found 12/2

$459

Fri 1/93:50 pmSTL - FCO

1 stop21h 10mLufthansa

Wed 1/1410:30 amFCO - STL

1 stop20h 29mLufthansa

Deal found 12/2

$448

Tue 1/136:46 pmSTL - FCO

2 stops17h 54mBritish Airways

Thu 1/225:50 pmFCO - STL

2 stops31h 24mBritish Airways

Deal found 12/3

$457

Tue 1/136:40 pmSTL - FCO

2 stops16h 35mLufthansa

Thu 1/2210:30 amFCO - STL

1 stop20h 29mLufthansa

Deal found 12/2

$461

Sat 1/174:05 pmSTL - FCO

2 stops34h 20mMultiple Airlines

Sat 1/243:00 pmFCO - STL

2 stops29h 55mMultiple Airlines

Deal found 12/3

$477

Wed 1/2111:22 amSTL - FCO

1 stop13h 33mLufthansa

Wed 1/2810:30 amFCO - STL

1 stop20h 29mLufthansa

Deal found 12/2

$452

Wed 1/219:59 amSTL - FCO

1 stop17h 31mKLM

Wed 1/2812:40 pmFCO - STL

1 stop17h 57mKLM

Deal found 12/3

$456

One-way flights from St. Louis to Leonardo da Vinci/Fiumicino
Search for one-way flight options from St. Louis to Leonardo da Vinci/Fiumicino. Find affordable one-way fares based on user searches. Data last updated December 4, 2025.

Sun 1/186:44 pmSTL - FCO

2 stops18h 11mBritish Airways

Deal found 12/4

$369

Sun 1/1812:44 pmSTL - FCO

1 stop12h 46mLufthansa

Deal found 12/2

$374

Sun 1/183:54 pmSTL - FCO

2 stops15h 36mAmerican Airlines

Deal found 12/2

$375

Sun 1/186:00 amSTL - FCO

1 stop21h 30mDelta

Deal found 12/4

$379

Fri 2/137:41 amSTL - FCO

2 stops18h 44mAir Canada

Deal found 12/2

$422

Fri 2/136:47 pmSTL - FCO

1 stop32h 43mKLM

Deal found 12/2

$636

Sun 1/187:04 amSTL - FCO

3 stops47h 46mMultiple Airlines

Deal found 12/4

$7,248

Fri 2/136:50 pmSTL - FCO

3 stops44h 20mMultiple Airlines

Deal found 12/2

$7,263

Find flight deals from St. Louis to Leonardo da Vinci/Fiumicino

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$447 (oojo)
One-way from	$369 (oojo)
Popular in	June
Cheapest in	January
Average price	$751

Provider with most accurate pricing for Lambert-St Louis-Rome Fiumicino flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Rome Fiumicino flights.

Search Deals

From Lambert-St Louis to Rome Fiumicino

Search Deals

One-way flight from Lambert-St Louis to Rome Fiumicino

Search Deals

Highest demand for flights based on searches. 27% potential increase in price ($372 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 December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Fri 1/9

3:50 pm-8:00 pm

1 stop21h 10m

Rome Fiumicino

Wed 1/14

10:30 am-11:59 pm

1 stop20h 29m

$448

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 3/2

4:05 pm-11:05 am

1 stop12h 00m

Rome Fiumicino

Wed 3/11

7:05 am-2:55 pm

1 stop13h 50m

$448

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 1/21

11:22 am-7:55 am

1 stop13h 33m

Rome Fiumicino

Wed 1/28

10:30 am-11:59 pm

1 stop20h 29m

$452

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 1/21

9:59 am-10:30 am

1 stop17h 31m

Rome Fiumicino

Wed 1/28

12:40 pm-11:37 pm

1 stop17h 57m

$456

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 1/21

6:44 pm-7:20 pm

2 stops17h 36m

Rome Fiumicino

Wed 1/28

8:30 pm-6:14 pm

2 stops28h 44m

$457

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 3/3

11:46 am-5:55 pm

2 stops23h 09m

Rome Fiumicino

Tue 3/10

6:40 pm-9:51 pm

2 stops33h 11m

$463

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 3/2

2:24 pm-1:55 pm

2 stops16h 31m

Rome Fiumicino

Wed 3/11

1:10 pm-11:04 pm

1 stop15h 54m

$470

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 3/1

7:41 am-8:30 am

2 stops17h 49m

Rome Fiumicino

Fri 3/13

12:20 pm-10:59 pm

2 stops16h 39m

$476

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 12/30

7:00 am-10:30 am

1 stop20h 30m

Rome Fiumicino

Wed 1/14

12:45 pm-11:39 pm

2 stops17h 54m

$479

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 3/3

7:41 am-7:45 am

1 stop17h 04m

Rome Fiumicino

Tue 3/10

9:45 am-10:59 pm

1 stop19h 14m

$481

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 15 results

Compare providers for flights from St. Louis to Leonardo da Vinci/Fiumicino

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Leonardo da Vinci/Fiumicino in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 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 Fiumicino Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Rome Fiumicino Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Rome Fiumicino Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Rome Fiumicino Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Fiumicino Airport 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 Leonardo da Vinci/Fiumicino

Have a flexible travel schedule? Discover the best time to fly to Leonardo da Vinci/Fiumicino 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 Fiumicino Airport

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

To ensure you get the cheapest price possible for a flight from St. Louis to Rome Fiumicino Airport, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Rome Fiumicino Airport (average of $465). Flying from St. Louis to Rome Fiumicino Airport 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.

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

It’s optimal to fly from St. Louis to Rome Fiumicino Airport in the evening. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the morning.

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

Reviews of airlines servicing Leonardo da Vinci/Fiumicino

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from St. Louis to Rome Fiumicino Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,011 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

8,011 reviews

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,064 reviews

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,047 reviews

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air Canada

7.1

Good

10,500 reviews

Delta

7.9

Good

8,011 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Lufthansa

6.8

Okay

7,613 reviews

Delta

7.9

Good

8,011 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 Rome Fiumicino?
Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Rome Fiumicino. You should not have trouble finding flights to Rome Fiumicino from Lambert-St Louis; the airport handles an average of 0 outbound flights to Rome Fiumicino per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the St. Louis airport to Rome Fiumicino. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.
How long is the flight from St. Louis to Rome Fiumicino Airport?
Lufthansa, KLM, and British Airways can get you from St. Louis to Rome Fiumicino Airport in just under 17h 31m. Your travel time can differ by up to 3h 39m. Airlines will cover a distance of 5050 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from St. Louis to Rome Fiumicino Airport round-trip?
Our cheapest airline available from St. Louis to Rome Fiumicino Airport is Iberia. Our recent data shows that you can find tickets from as low as $536 on this airline. Additional options worth looking into are United Airlines and KLM, starting at $549 and $555 round-trip. Iberia is priced at 46% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from St. Louis to Leonardo da Vinci/Fiumicino that include hotel bookings?
Yes. In addition to deals on St. Louis to Leonardo da Vinci/Fiumicino flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Leonardo da Vinci/Fiumicino?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Leonardo da Vinci/Fiumicino.
Can I find deals for business class flights from St. Louis to Leonardo da Vinci/Fiumicino?
Yes. Cheapflights offers flight deals from St. Louis to Leonardo da Vinci/Fiumicino 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 Fiumicino Airport?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Rome Fiumicino Airport (average of $465). Flying from St. Louis to Rome Fiumicino Airport 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

Fiumicino

Montepulciano

Santa Marinella

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Top 8 airlines flying from St. Louis to Leonardo da Vinci/Fiumicino

Airline	Cheapest	Average	Flexibility	On-time
Iberia	Cheapest$536	Average$1,273	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$549	Average$1,180	FlexibilityNo cancel fee	On-time69%
KLM	Cheapest$555	Average$983	FlexibilityNo cancel fee	On-time75%
Lufthansa	Cheapest$557	Average$987	FlexibilityNo cancel fee	On-time76%
Delta	Cheapest$587	Average$873	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$665	Average$939	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$705	Average$1,157	FlexibilityNo cancel fee	On-time67%
British Airways	Cheapest$711	Average$1,213	FlexibilityNo cancel fee	On-time70%

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$369+ Cheap flights from St. Louis (STL) to Fiumicino (FCO)

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Leonardo da Vinci/Fiumicino with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Lambert-St Louis to Rome Fiumicino are usually found in January or November, booked 45 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to Leonardo da Vinci/Fiumicino

Cheapest flights from St. Louis to Leonardo da Vinci/FiumicinoExplore the most affordable flight options available from St. Louis to Leonardo da Vinci/Fiumicino. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

Explore the most affordable flight options available from St. Louis to Leonardo da Vinci/Fiumicino. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.

Find flight deals from St. Louis to Leonardo da Vinci/Fiumicino

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 Fiumicino Airport that are best for you.

Compare providers for flights from St. Louis to Leonardo da Vinci/Fiumicino

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 Leonardo da Vinci/Fiumicino in December.

Best time to book a flight from St. Louis to Leonardo da Vinci/Fiumicino

Have a flexible travel schedule? Discover the best time to fly to Leonardo da Vinci/Fiumicino from St. Louis with our price prediction graph.

Cheapflights Insights

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

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

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

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

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

Reviews of airlines servicing Leonardo da Vinci/Fiumicino

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Leonardo da Vinci/Fiumicino. 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 Fiumicino?

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

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

Can I find deals for flights from St. Louis to Leonardo da Vinci/Fiumicino that include hotel bookings?

How can I find direct flights from St. Louis to Leonardo da Vinci/Fiumicino?

Can I find deals for business class flights from St. Louis to Leonardo da Vinci/Fiumicino?

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

Traveling to a place near Rome Fiumicino Airport?

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Alternative routes for St. Louis to Leonardo da Vinci/Fiumicino

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Top 8 airlines flying from St. Louis to Leonardo da Vinci/Fiumicino

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Cheapest flights from St. Louis to Leonardo da Vinci/Fiumicino
Explore the most affordable flight options available from St. Louis to Leonardo da Vinci/Fiumicino. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.