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St. Louis

$507+ Cheap flights from Rome (ROM) 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
ROM — STL
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheap 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 November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$800
(Kiwi.com)

One-way from

$507
(Finnair)
Provider with most accurate pricing for Rome (ROM)-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Rome (ROM)-Lambert-St Louis flights.
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From Rome (ROM) to Lambert-St Louis
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One-way flight from Rome (ROM) to Lambert-St Louis
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Find flight deals from Rome to St. Louis

Cheapest flights from Rome to St. Louis
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 November 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/206:45 pmFCO - STL
1 stop26h 10mLufthansa
Fri 11/286:43 pmSTL - FCO
2 stops16h 32mLufthansa
Deal found 11/3$800
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Wed 11/197:05 amFCO - STL
1 stop13h 50mUnited Airlines
Sun 11/238:25 amSTL - FCO
1 stop17h 05mUnited Airlines
Deal found 11/3$805
This lol.travel deal was found by Cheapflights users on 11/3. 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.
Wed 11/197:05 amFCO - STL
2 stops17h 34mLufthansa
Sun 11/236:43 pmSTL - FCO
2 stops16h 12mLufthansa
Deal found 11/3$808
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/271:30 pmFCO - STL
2 stops28h 21mUnited Airlines
Mon 12/111:05 amSTL - FCO
1 stop13h 40mUnited Airlines
Deal found 11/2$811
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Sun 12/141:10 pmFCO - STL
2 stops32h 13mUnited Airlines
Fri 1/911:22 amSTL - FCO
1 stop13h 33mUnited Airlines
Deal found 11/3$819
This British Airways deal was found by Cheapflights users on 11/3. 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 12/141:10 pmFCO - STL
1 stop16h 15mBritish Airways
Sat 1/1012:06 pmSTL - FCO
2 stops17h 04mBritish Airways
Deal found 11/3$821
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Sat 11/159:45 amFCO - STL
2 stops19h 37mUnited Airlines
Tue 11/258:00 amSTL - FCO
1 stop16h 45mUnited Airlines
Deal found 11/3$829
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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.
Sun 12/1410:30 amFCO - STL
1 stop20h 12mLufthansa
Fri 1/911:22 amSTL - FCO
1 stop13h 33mLufthansa
Deal found 11/3$839

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 2,558,603 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from Rome to St. Louis that are best for you.

Fly from

Rome

Fly to

St. Louis

Route

Depart

Return

Price

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 11/20

6:45 pm-1:55 pm

1 stop26h 10m

Lambert-St Louis

Fri 11/28

6:43 pm-6:15 pm

2 stops16h 32m

$800

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 11/19

7:05 am-1:55 pm

1 stop13h 50m

Lambert-St Louis

Sun 11/23

8:25 am-8:30 am

1 stop17h 05m

$805

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 11/19

7:05 am-5:39 pm

2 stops17h 34m

Lambert-St Louis

Sun 11/23

6:43 pm-5:55 pm

2 stops16h 12m

$808

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 11/20

7:05 am-6:47 pm

2 stops18h 42m

Lambert-St Louis

Fri 11/28

11:05 am-10:55 am

2 stops16h 50m

$811

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Thu 11/27

1:30 pm-10:51 am

2 stops28h 21m

Lambert-St Louis

Mon 12/1

11:05 am-10:55 am

2 stops16h 50m

$811

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Sun 12/14

1:10 pm-2:23 pm

2 stops32h 13m

Lambert-St Louis

Fri 1/9

9:57 am-9:25 am

2 stops16h 28m

$819

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Sun 12/14

1:10 pm-3:40 pm

2 stops33h 30m

Lambert-St Louis

Fri 1/9

11:22 am-7:55 am

1 stop13h 33m

$819

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 4/15

10:30 am-11:24 pm

2 stops19h 54m

$507

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Wed 4/15

10:30 am-9:48 pm

2 stops18h 18m

$507

RomeSt. Louis

FCO - STL

FCOSTL

Rome Fiumicino

Tue 4/14

1:10 pm-9:11 pm

1 stop15h 01m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Compare providers for flights from Rome 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 Rome to St. Louis in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 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-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-St. Louis flight deals on Cheapflights vs. eDreams >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 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-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.
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
No data available for this route at this time. Please check back soon.

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 November 4, 2025.
Get a feel of what it's like to fly with British Airways from Rome to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,494 reviews

Crew

7.6

Entertainment

6.4

Boarding

6.9

Comfort

6.7

Food

6.3

Overall

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,494 reviews
British Airways
6.7
Okay
7,494 reviews

Crew

7.6

Entertainment

6.4

Boarding

6.9

Comfort

6.7

Food

6.3

Overall

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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.

  • What airport do you fly into for flights to St. Louis from Rome?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Rome. On average, Lambert-St Louis has 0 inbound flights from Rome 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 to St. Louis?

    A quick flight from Rome to St. Louis can take about 13h 50m. Lufthansa provides one of the quickest options available for as low as $805. The distance between Rome and St. Louis is about 5050 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Rome to St. Louis that include hotel bookings?

    Yes. In addition to deals on Rome to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rome to St. Louis?

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

  • Can I find deals for business class flights from Rome to St. Louis?

    Yes. Cheapflights offers flight deals from Rome 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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