HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$485+ Cheap flights from Fiumicino (FCO) to St. Louis (STL)

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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
FCO — STL
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Discover tips and strategies to find the most affordable flight options for your journey from Leonardo da Vinci/Fiumicino (FCO) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$770
(United Airlines)

One-way from

$485
(Mytrip)

Popular in

December

Cheapest in

April

Average price

$786
Provider with most accurate pricing for Rome Fiumicino-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rome Fiumicino-Lambert-St Louis flights.
Search Deals
From Rome Fiumicino to Lambert-St Louis
Search Deals
One-way flight from Rome Fiumicino to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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

Cheapest flights from Leonardo da Vinci/Fiumicino to St. Louis
Explore the most affordable flight options available from Leonardo da Vinci/Fiumicino to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:00 amFCO - STL
2 stops33h 36mUnited Airlines
Mon 5/59:40 amSTL - FCO
2 stops15h 35mUnited Airlines
Deal found 4/15$770
This Air Canada deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/710:00 amFCO - STL
2 stops16h 58mAir Canada
Mon 5/197:30 amSTL - FCO
2 stops18h 45mAir Canada
Deal found 4/15$781
This lol.travel deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/610:30 amFCO - STL
1 stop17h 40mLufthansa
Mon 12/81:00 pmSTL - FCO
1 stop12h 30mLufthansa
Deal found 4/15$784
This Mytrip deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/112:25 pmFCO - STL
3 stops35h 20mMultiple Airlines
Mon 5/55:15 pmSTL - FCO
3 stops32h 35mMultiple Airlines
Deal found 4/15$961
This British Airways deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/911:05 amFCO - STL
1 stop16h 18mBritish Airways
Sat 7/128:01 pmSTL - FCO
2 stops15h 59mBritish Airways
Deal found 4/15$1,087
This Trip.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/911:05 amFCO - STL
1 stop16h 18mIberia
Sat 7/128:01 pmSTL - FCO
1 stop30h 09mIberia
Deal found 4/15$1,092
This Expedia deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/96:30 amFCO - STL
2 stops17h 15mKLM
Sat 7/125:40 pmSTL - FCO
2 stops22h 05mKLM
Deal found 4/15$1,269

Cheapflights Fare Finder

Customize your flight search to find flights from Leonardo da Vinci/Fiumicino to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 15, 2025.
Use the filters below to find and compare flights from Rome Fiumicino Airport to St. Louis that are best for you.

Fly from

Leonardo da Vinci/Fiumicino

Fly to

St. Louis

Route

Depart

Return

Price

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 5/1

10:00 am-12:36 pm

2 stops33h 36m

Lambert-St Louis

Mon 5/5

1:00 pm-1:05 pm

1 stop17h 05m

$770

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 5/7

10:00 am-7:58 pm

2 stops16h 58m

Lambert-St Louis

Mon 5/19

7:30 am-9:15 am

2 stops18h 45m

$781

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 5/1

12:25 pm-4:45 pm

3 stops35h 20m

Lambert-St Louis

Mon 5/5

5:15 pm-8:50 am

3 stops32h 35m

$961

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 7/9

11:05 am-8:23 pm

1 stop16h 18m

Lambert-St Louis

Sat 7/12

8:01 pm-7:00 pm

2 stops15h 59m

$1,087

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 7/9

11:05 am-8:23 pm

1 stop16h 18m

Lambert-St Louis

Sat 7/12

8:01 pm-9:10 am

1 stop30h 09m

$1,092

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 7/9

6:30 am-4:45 pm

2 stops17h 15m

Lambert-St Louis

Sat 7/12

5:40 pm-10:45 pm

2 stops22h 05m

$1,269

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Fri 5/30

6:15 am-2:54 pm

3 stops39h 39m

$485

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 5/7

7:30 am-9:52 pm

2 stops21h 22m

$567

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Mon 5/5

7:00 am-2:47 pm

2 stops38h 47m

$718

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Fri 8/22

10:20 am-6:33 pm

1 stop15h 13m

$756

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 13 results
1
2

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

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 Leonardo da Vinci/Fiumicino to St. Louis in April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 Rome Fiumicino Airport-St. Louis flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Rome Fiumicino Airport-St. Louis flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Rome Fiumicino Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rome Fiumicino Airport-St. Louis flights, Cheapflights users trust AranGrant the most. AranGrant 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 Rome Fiumicino Airport-St. Louis 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 Leonardo da Vinci/Fiumicino to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Leonardo da Vinci/Fiumicino 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 Rome Fiumicino Airport to St. Louis

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated April 15, 2025.
KLM
7.8
Good
1,323 reviews

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,323 reviews
KLM
7.8
Good
1,323 reviews

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Finnair
7.6
Good
1,269 reviews
KLM
7.8
Good
1,323 reviews

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
United Airlines
7.4
Good
8,658 reviews
KLM
7.8
Good
1,323 reviews

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Brussels Airlines
7.4
Good
345 reviews
KLM
7.8
Good
1,323 reviews

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Turkish Airlines
7.3
Good
3,760 reviews
KLM
7.8
Good
1,323 reviews

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

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

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Rome Fiumicino. On average, Lambert-St Louis has 0 inbound flights from Rome Fiumicino per day from 0 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    Cheapflights users have booked flights from Rome Fiumicino Airport to St. Louis round-trip from $770. Other airlines that can offer you cheap pricing are Air Canada, from $781, and British Airways, from $1,087. United Airlines is priced at 18% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Rome Fiumicino Airport to St. Louis one-way?

    One-way options have recently been found by users for as low as $567 on Aer Lingus. Other airlines that offer cheap prices include Turkish Airlines from $718 and Brussels Airlines from $756 one-way.

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

    Yes. In addition to deals on Leonardo da Vinci/Fiumicino to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

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

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

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

    Yes. Cheapflights offers flight deals from Leonardo da Vinci/Fiumicino to St. Louis 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 Rome Fiumicino Airport to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Rome Fiumicino Airport to St. Louis (average of $311). Flying from Rome Fiumicino Airport to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Rome Fiumicino Airport?

Book flights to Rome Fiumicino Airport if you plan to visit one of these locations
Fenton
Maryland Heights
Fairview Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Glencoe
Alton
Farmington
Chesterfield

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 Leonardo da Vinci/Fiumicino to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Leonardo da Vinci/Fiumicino to Kansas City flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.