$539+ Cheap flights from Fiumicino (FCO) to St. Louis (STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
FCO — STL
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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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
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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
Cheapest
Best
Last-minute
One-way
Cheapest flights from Leonardo da Vinci/Fiumicino to St. LouisExplore 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 October 26, 2026.
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 October 26, 2026.
This Delta deal was found by Cheapflights users on 10/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:10 am -
2 stops20h 55m
Sat 12/1210:14 am -
1 stop16h 21m
Deal found 10/21![Delta logo]()
$854
This Delta deal was found by Cheapflights users on 10/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/810:10 am -
2 stops20h 55m
Tue 12/1510:06 am -
2 stops16h 14m
Deal found 10/24![Delta logo]()
$860
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:10 am -
2 stops24h 11m
Wed 11/112:21 pm -
2 stops17h 39m
Deal found 10/23![Delta logo]()
$861
This Delta deal was found by Cheapflights users on 10/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:10 am -
2 stops20h 44m
Tue 11/106:00 pm -
2 stops17h 25m
Deal found 10/22![Delta logo]()
$862
This KLM deal was found by Cheapflights users on 10/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:25 am -
1 stop14h 48m
Wed 11/2510:20 am -
1 stop16h 15m
Deal found 10/21![KLM logo]()
$881
This Icelandair deal was found by Cheapflights users on 10/21. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:25 am -
2 stops17h 50m
Wed 11/258:25 am -
2 stops22h 35m
Deal found 10/21![Multiple Airlines logo]()
$893
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 11/187:30 am -
2 stops17h 47m
Wed 11/254:25 pm -
2 stops15h 30m
Deal found 10/21![American Airlines logo]()
$918
Best flights from Leonardo da Vinci/Fiumicino to St. LouisDiscover carefully curated flight deals from Leonardo da Vinci/Fiumicino to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Leonardo da Vinci/Fiumicino to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Delta deal was found by Cheapflights users on 10/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:10 am -
2 stops20h 55m
Sat 12/127:03 am -
2 stops19h 32m
Deal found 10/21![Delta logo]()
$854
This KLM deal was found by Cheapflights users on 10/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:25 am -
1 stop14h 48m
Wed 11/2510:20 am -
1 stop16h 15m
Deal found 10/21![KLM logo]()
$881
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/1212:40 pm -
2 stops16h 00m
Sun 11/156:00 am -
1 stop18h 45m
Deal found 10/24![United Airlines logo]()
$980
This Delta deal was found by Cheapflights users on 10/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:10 am -
2 stops22h 32m
Wed 11/252:21 pm -
2 stops17h 39m
Deal found 10/21![Delta logo]()
$862
This Delta deal was found by Cheapflights users on 10/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:45 pm -
2 stops18h 20m
Tue 12/1510:06 am -
1 stop18h 14m
Deal found 10/24![Delta logo]()
$863
This Delta deal was found by Cheapflights users on 10/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:10 am -
2 stops20h 44m
Tue 11/1012:28 pm -
1 stop15h 02m
Deal found 10/22![Delta logo]()
$865
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:10 am -
2 stops17h 21m
Mon 11/3010:05 am -
1 stop15h 10m
Deal found 10/23![Delta logo]()
$865
Last-minute flights from Leonardo da Vinci/Fiumicino to St. LouisDiscover last-minute flight deals from Leonardo da Vinci/Fiumicino to St. Louis. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Leonardo da Vinci/Fiumicino to St. Louis. Data last updated October 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:10 am -
2 stops20h 44m
Tue 11/106:00 pm -
2 stops17h 25m
Deal found 10/22![Delta logo]()
$862
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:10 am -
2 stops24h 11m
Wed 11/112:21 pm -
2 stops17h 39m
Deal found 10/23![Delta logo]()
$861
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/1212:40 pm -
2 stops16h 00m
Sun 11/156:00 am -
1 stop18h 45m
Deal found 10/23![United Airlines logo]()
$980
This KLM deal was found by Cheapflights users on 10/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:25 am -
1 stop14h 48m
Wed 11/2510:20 am -
1 stop16h 15m
Deal found 10/21![KLM logo]()
$881
This Icelandair deal was found by Cheapflights users on 10/21. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:25 am -
2 stops17h 50m
Wed 11/258:25 am -
2 stops22h 35m
Deal found 10/21![Multiple Airlines logo]()
$893
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 11/187:30 am -
2 stops17h 47m
Wed 11/254:25 pm -
2 stops15h 30m
Deal found 10/21![American Airlines logo]()
$918
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:05 am -
1 stop13h 40m
Wed 11/253:40 pm -
1 stop14h 00m
Deal found 10/21![Lufthansa logo]()
$929
One-way flights from Leonardo da Vinci/Fiumicino to St. LouisSearch for one-way flight options from Leonardo da Vinci/Fiumicino to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Leonardo da Vinci/Fiumicino to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Tue 4/132:55 pm -
3 stops39h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Sun 2/147:55 pm -
3 stops59h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$543
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Mon 12/217:45 pm -
3 stops46h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$569
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Sun 2/282:35 pm -
3 stops40h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$574
This Expedia deal was found by Cheapflights users on 10/24. 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 4/1410:30 am -
2 stops18h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Finnair logo]()
$575
This British Airways deal was found by Cheapflights users on 10/21. 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.
Sun 2/281:00 pm -
1 stop15h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![British Airways logo]()
$591
This Expedia deal was found by Cheapflights users on 10/23. 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.
Sun 2/141:00 pm -
1 stop15h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![British Airways logo]()
$599
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 2/281:00 pm -
2 stops17h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![American Airlines logo]()
$600
This American Airlines deal was found by Cheapflights users on 10/24. 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.
Tue 4/137:35 am -
2 stops21h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![American Airlines logo]()
$610
This British Airways deal was found by Cheapflights users on 10/24. 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.
Sun 4/119:00 am -
1 stop17h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![British Airways logo]()
$616
Find 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 October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $854 (Delta) |
One-way from | $539 (Kiwi.com) |
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 7,457,451 searches. Data last updated October 26, 2026.
Use the filters below to find and compare flights from Rome Fiumicino Airport to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Sun 2/28
1:00 pm-9:09 pm
1 stop15h 09m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$591
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Sun 12/27
1:30 pm-9:07 am
1 stop26h 37m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$779
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Sat 12/5
10:10 am-12:05 am
2 stops20h 55m
Lambert-St Louis
Sat 12/12
7:03 am-9:35 am
2 stops19h 32m
$854
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Wed 11/18
6:10 am-9:42 pm
2 stops22h 32m
Lambert-St Louis
Wed 11/25
2:21 pm-3:00 pm
2 stops17h 39m
$862
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Tue 12/8
12:45 pm-12:05 am
2 stops18h 20m
Lambert-St Louis
Tue 12/15
10:06 am-11:20 am
1 stop18h 14m
$863
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Fri 11/6
10:10 am-11:54 pm
2 stops20h 44m
Lambert-St Louis
Tue 11/10
12:28 pm-10:30 am
1 stop15h 02m
$865
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Mon 11/23
6:10 am-4:31 pm
2 stops17h 21m
Lambert-St Louis
Mon 11/30
10:05 am-8:15 am
1 stop15h 10m
$865
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Wed 11/18
10:25 am-6:13 pm
1 stop14h 48m
Lambert-St Louis
Wed 11/25
10:20 am-9:35 am
1 stop16h 15m
$881
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Thu 11/12
12:40 pm-9:40 pm
2 stops16h 00m
Lambert-St Louis
Sun 11/15
6:00 am-7:45 am
1 stop18h 45m
$980
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Mon 11/2
11:25 am-7:25 pm
3 stops39h 00m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$1,478
Showing 1-10 of 11 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Rome Fiumicino Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rome Fiumicino Airport-St. Louis flight deals on Cheapflights vs. FlightHub >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 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 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.
FCO-STL
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Collinsville
Edwardsville
Glencoe
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