$568+ Cheap flights from Rome (ROM) 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
ROM — STL
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Rome 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 Rome to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Rome to St. LouisExplore the most affordable flight options available from Rome to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from Rome to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This Delta deal was found by Cheapflights users on 9/16. 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.
Sun 11/1512:50 pm -
2 stops17h 28m
Fri 12/410:04 am -
2 stops16h 16m
Deal found 9/16![Delta logo]()
$848
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:30 am -
2 stops21h 05m
Sun 10/45:59 pm -
2 stops16h 31m
Deal found 9/15![Delta logo]()
$849
This British Airways deal was found by Cheapflights users on 9/16. 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.
Fri 11/131:10 pm -
1 stop27h 20m
Thu 12/39:50 am -
2 stops19h 30m
Deal found 9/16![British Airways logo]()
$851
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 11/121:10 pm -
1 stop17h 23m
Sun 11/155:29 pm -
2 stops17h 21m
Deal found 9/14![American Airlines logo]()
$853
This Flysmarter deal was found by Cheapflights users on 9/16. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1510:25 am -
1 stop14h 48m
Fri 12/42:33 pm -
1 stop13h 47m
Deal found 9/16![KLM logo]()
$857
This British Airways deal was found by Cheapflights users on 9/16. 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.
Thu 11/1211:00 am -
1 stop16h 26m
Sun 11/1512:58 pm -
1 stop14h 47m
Deal found 9/16![British Airways logo]()
$858
Best flights from Rome to St. LouisDiscover carefully curated flight deals from Rome to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Rome to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:30 am -
2 stops21h 05m
Sun 10/45:59 pm -
2 stops16h 31m
Deal found 9/15![Delta logo]()
$849
This British Airways deal was found by Cheapflights users on 9/16. 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.
Mon 11/1611:00 am -
1 stop16h 26m
Thu 12/35:29 pm -
2 stops16h 26m
Deal found 9/16![British Airways logo]()
$851
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 11/121:10 pm -
1 stop17h 23m
Sun 11/151:20 pm -
2 stops16h 00m
Deal found 9/16![American Airlines logo]()
$851
This KLM deal was found by Cheapflights users on 9/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:30 am -
2 stops17h 17m
Sun 10/410:05 am -
1 stop19h 35m
Deal found 9/15![KLM logo]()
$852
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:10 am -
2 stops23h 44m
Fri 11/611:20 am -
2 stops17h 10m
Deal found 9/15![Delta logo]()
$849
This British Airways deal was found by Cheapflights users on 9/15. 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.
Thu 11/1211:00 am -
1 stop16h 26m
Sun 11/155:29 pm -
2 stops17h 21m
Deal found 9/15![British Airways logo]()
$852
This Delta deal was found by Cheapflights users on 9/16. 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.
Sun 11/156:10 am -
2 stops24h 08m
Fri 12/410:18 am -
1 stop16h 17m
Deal found 9/16![Delta logo]()
$851
This Delta deal was found by Cheapflights users on 9/12. 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 10/2710:10 am -
2 stops19h 44m
Tue 11/311:20 am -
1 stop15h 55m
Deal found 9/12![Delta logo]()
$856
Last-minute flights from Rome to St. LouisDiscover last-minute flight deals from Rome to St. Louis. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Rome to St. Louis. Data last updated September 17, 2026 and is based on user searches.
This British Airways deal was found by Cheapflights users on 9/13. 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.
Sat 9/261:10 pm -
1 stop16h 32m
Tue 9/298:30 am -
1 stop20h 35m
Deal found 9/13![British Airways logo]()
$864
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:30 am -
2 stops21h 05m
Sun 10/45:59 pm -
2 stops16h 31m
Deal found 9/15![Delta logo]()
$849
This Iberia deal was found by Cheapflights users on 9/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:00 pm -
2 stops18h 43m
Sun 10/46:30 am -
1 stop17h 35m
Deal found 9/14![Iberia logo]()
$865
This Delta deal was found by Cheapflights users on 9/12. 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 10/276:10 am -
2 stops23h 44m
Tue 11/34:22 pm -
2 stops15h 38m
Deal found 9/12![Delta logo]()
$853
This Air France deal was found by Cheapflights users on 9/16. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:20 am -
2 stops17h 39m
Sat 11/710:47 am -
1 stop17h 33m
Deal found 9/16![Multiple Airlines logo]()
$868
One-way flights from Rome to St. LouisSearch for one-way flight options from Rome to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Rome to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 1/116:00 am -
3 stops25h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$568
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 1/121:30 pm -
3 stops58h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$589
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Thu 12/175:50 am -
3 stops32h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$596
This Thrive Travel deal was found by Cheapflights users on 9/15. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:30 am -
2 stops17h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$604
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 12/1611:10 am -
3 stops57h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$617
This Delta deal was found by Cheapflights users on 9/16. 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 1/116:10 am -
2 stops21h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$618
This Delta deal was found by Cheapflights users on 9/13. 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 12/166:10 am -
2 stops21h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Delta logo]()
$621
This Delta deal was found by Cheapflights users on 9/12. 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.
Thu 12/1710:10 am -
2 stops20h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Delta logo]()
$622
This Delta deal was found by Cheapflights users on 9/16. 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 1/161:30 pm -
1 stop17h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$625
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 1/1412:00 pm -
2 stops27h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![American Airlines logo]()
$632
Find flight deals from Rome to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Rome (ROM) 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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $848 (Delta) |
One-way from | $568 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Rome 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 September 17, 2026.
Use the filters below to find and compare flights from Rome to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Wed 1/13
6:10 am-11:39 pm
2 stops24h 29m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$618
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Mon 1/11
6:10 am-8:37 pm
2 stops21h 27m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$618
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Tue 1/12
6:10 am-6:01 pm
2 stops18h 51m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$618
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Sat 1/9
6:10 am-4:50 pm
2 stops17h 40m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$621
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Wed 12/16
6:10 am-8:32 pm
2 stops21h 22m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$621
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Fri 1/15
1:30 pm-11:39 pm
1 stop17h 09m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$625
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Sat 1/16
1:30 pm-11:39 pm
1 stop17h 09m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$625
Quickest round-trip
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Thu 12/17
10:25 am-6:13 pm
1 stop14h 48m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$629
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Thu 10/29
6:40 am-5:40 pm
3 stops41h 00m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$634
RomeSt. Louis
FCO Rome Fiumicino - STL Lambert-St Louis
FCOSTL
Rome Fiumicino
Tue 10/6
12:15 pm-11:43 pm
1 stop18h 28m
Lambert-St Louis
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$760
Showing 1-10 of 18 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Rome-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-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rome-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Rome-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-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 Rome to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Rome with our price prediction graph.
ROM-STL
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.
Cheapflights Insights
Everything you need to know about your flight from Rome to St. Louis
ROM-STL
FCO-STL
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Rome 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
Maryland Heights
Collinsville
Wentzville
Edwardsville
Glencoe
Chesterfield
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