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$360+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
FCO — STL
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Find cheap flights from Leonardo da Vinci/Fiumicino to St. Louis with Cheapflights

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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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$794
(Kiwi.com)

One-way from

$360
(Kiwi.com)

Popular in

October

Cheapest in

April

Average price

$1,272
Provider with most accurate pricing for Rome Fiumicino-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Rome Fiumicino-Lambert-St Louis flights.
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From Rome Fiumicino to Lambert-St Louis
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One-way flight from Rome Fiumicino to Lambert-St Louis
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Highest demand for flights based on searches. 7% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 octubre 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/127:05 amFCO - STL
1 stop13h 50mLufthansa
dom. 11/161:10 pmSTL - FCO
1 stop12h 20mLufthansa
Deal found 10/27$794
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/247:00 amFCO - STL
2 stops17h 39mLufthansa
lun. 12/112:31 pmSTL - FCO
1 stop12h 14mLufthansa
Deal found 10/27$798
This British Airways deal was found by Cheapflights users on 10/27. 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.
dom. 12/1411:00 amFCO - STL
1 stop16h 21mBritish Airways
vie. 1/92:54 pmSTL - FCO
2 stops14h 31mBritish Airways
Deal found 10/27$799
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/247:30 amFCO - STL
2 stops18h 57mAmerican Airlines
lun. 12/13:43 pmSTL - FCO
2 stops16h 12mAmerican Airlines
Deal found 10/27$808
This United Airlines deal was found by Cheapflights users on 10/27. 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.
jue. 11/271:30 pmFCO - STL
2 stops29h 58mUnited Airlines
lun. 12/15:24 pmSTL - FCO
1 stop31h 21mUnited Airlines
Deal found 10/27$820
This Air Canada deal was found by Cheapflights users on 10/27. 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.
mié. 11/127:05 amFCO - STL
2 stops39h 24mMultiple Airlines
dom. 11/166:30 amSTL - FCO
2 stops19h 25mMultiple Airlines
Deal found 10/27$821
This Finnair deal was found by Cheapflights users on 10/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2411:00 amFCO - STL
1 stop15h 30mMultiple Airlines
lun. 12/16:00 amSTL - FCO
1 stop20h 00mMultiple Airlines
Deal found 10/27$822
This Air Canada deal was found by Cheapflights users on 10/27. 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.
lun. 12/159:45 amFCO - STL
2 stops36h 44mAir Canada
jue. 1/84:05 pmSTL - FCO
2 stops34h 20mAir Canada
Deal found 10/27$825
This Air Canada deal was found by Cheapflights users on 10/27. 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.
sáb. 12/1310:55 amFCO - STL
2 stops35h 45mAir Canada
vie. 1/98:05 amSTL - FCO
2 stops18h 20mAir Canada
Deal found 10/27$826

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 octubre 28, 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

mié. 11/12

7:05 am-1:55 pm

1 stop13h 50m

Lambert-St Louis

dom. 11/16

1:10 pm-8:30 am

1 stop12h 20m

$794

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

dom. 12/14

1:10 pm-10:25 pm

1 stop16h 15m

Lambert-St Louis

vie. 1/9

6:44 pm-4:55 pm

2 stops15h 11m

$799

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

dom. 12/14

7:50 am-7:30 pm

2 stops18h 40m

Lambert-St Louis

sáb. 1/10

5:04 pm-5:35 pm

2 stops17h 31m

$810

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

lun. 12/15

9:45 am-7:17 pm

2 stops16h 32m

Lambert-St Louis

vie. 1/9

8:05 am-7:55 am

2 stops16h 50m

$820

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

jue. 11/27

1:30 pm-10:51 am

2 stops28h 21m

Lambert-St Louis

lun. 12/1

3:14 pm-7:45 am

1 stop33h 31m

$820

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

dom. 12/14

1:10 pm-2:23 pm

2 stops32h 13m

Lambert-St Louis

jue. 1/8

4:05 pm-9:25 am

2 stops34h 20m

$822

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

lun. 11/24

11:00 am-7:30 pm

1 stop15h 30m

Lambert-St Louis

lun. 12/1

6:00 am-9:00 am

1 stop20h 00m

$822

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

mar. 1/20

9:45 pm-10:33 pm

3 stops55h 48m

$360

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

sáb. 1/10

9:35 pm-7:50 am

3 stops41h 15m

$377

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

dom. 12/7

7:10 pm-9:52 am

2 stops21h 42m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 15 results
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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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Rome Fiumicino Airport-St. Louis flight deals on Cheapflights vs. eDreams >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 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 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.

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.

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

    For as low as $794, Lufthansa can have you in St. Louis from Rome Fiumicino Airport in 13h 50m. The distance between Rome Fiumicino Airport and St. Louis is about 5050 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
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Farmington
Festus

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