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$314+ Cheap flights from St. Louis (STL) to Rome (ROM)

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ROM
Mar 30 — Apr 61
Mon 3/30
Mon 4/6
1 adult, Economy
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Cheap flight deals from St. Louis to Rome

Cheapest flights from St. Louis to Rome
Explore the most affordable flight options available from St. Louis to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 28, 2026.

This FlightHub deal was found by Cheapflights users on 2/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:30 pm
STL
-
FCO
2 stops36h 10m
Scandinavian Airlines
Thu 9/179:40 am
FCO
-
STL
2 stops20h 57m
Scandinavian Airlines
Deal found 2/25$625
This FlightHub deal was found by Cheapflights users on 2/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:30 pm
STL
-
FCO
2 stops36h 10m
Scandinavian Airlines
Sat 9/1911:55 am
FCO
-
STL
2 stops39h 55m
Scandinavian Airlines
Deal found 2/25$655
This Cheapflightsfares deal was found by Cheapflights users on 2/25. 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.
Tue 8/186:49 pm
STL
-
FCO
2 stops20h 11m
Lufthansa
Tue 8/256:50 am
FCO
-
STL
1 stop13h 35m
Lufthansa
Deal found 2/25$658
This KAYAK deal was found by Cheapflights users on 2/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:42 pm
STL
-
FCO
2 stops33h 58m
Scandinavian Airlines
Wed 8/1911:55 am
FCO
-
STL
2 stops42h 42m
Scandinavian Airlines
Deal found 2/27$659
This FlightHub deal was found by Cheapflights users on 2/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:30 pm
STL
-
FCO
2 stops38h 35m
Scandinavian Airlines
Sat 9/124:35 pm
FCO
-
STL
2 stops35h 15m
Scandinavian Airlines
Deal found 2/25$685
This KAYAK deal was found by Cheapflights users on 2/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:42 pm
STL
-
FCO
2 stops36h 23m
Scandinavian Airlines
Thu 8/2011:55 am
FCO
-
STL
2 stops39h 55m
Scandinavian Airlines
Deal found 2/27$689
This oojo deal was found by Cheapflights users on 2/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:01 pm
STL
-
FCO
1 stop14h 19m
British Airways
Wed 8/191:30 pm
FCO
-
STL
1 stop17h 25m
British Airways
Deal found 2/24$691
This Gotogate deal was found by Cheapflights users on 2/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:10 pm
STL
-
FCO
1 stop14h 05m
Multiple Airlines
Mon 8/241:20 pm
FCO
-
STL
1 stop31h 05m
Multiple Airlines
Deal found 2/26$692
This United Airlines deal was found by Cheapflights users on 2/27. 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.
Sun 11/810:23 am
STL
-
FCO
2 stops23h 47m
United Airlines
Wed 11/187:05 am
FCO
-
STL
1 stop13h 50m
United Airlines
Deal found 2/27$693
This Mytrip deal was found by Cheapflights users on 2/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:40 pm
STL
-
CIA
3 stops23h 30m
Multiple Airlines
Tue 10/208:25 pm
CIA
-
STL
2 stops24h 35m
Multiple Airlines
Deal found 2/27$1,402
This Mytrip deal was found by Cheapflights users on 2/28. 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.
Fri 5/157:05 am
STL
-
CIA
3 stops31h 05m
Multiple Airlines
Fri 5/228:20 pm
CIA
-
STL
3 stops31h 05m
Multiple Airlines
Deal found 2/28$1,505
This Mytrip deal was found by Cheapflights users on 2/25. 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.
Wed 3/1111:28 am
STL
-
CIA
3 stops28h 22m
Multiple Airlines
Sat 3/146:55 am
CIA
-
STL
3 stops22h 56m
Multiple Airlines
Deal found 2/25$1,611

Find flight deals from St. Louis to Rome

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Rome (ROM). 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 February 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$625
(FlightHub)

One-way from

$314
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$540
Provider with most accurate pricing for Lambert-St Louis-Rome (ROM) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Rome (ROM) flights.
Search Deals
From Lambert-St Louis to Rome (ROM)
Search Deals
One-way flight from Lambert-St Louis to Rome (ROM)
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($397 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Rome 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 February 28, 2026.
Use the filters below to find and compare flights from St. Louis to Rome that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Tue 3/24

6:32 am-6:55 am

1 stop18h 23m

Rome Fiumicino

Tue 3/31

6:30 am-8:42 pm

2 stops21h 12m

$797

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 4/26

8:21 am-2:20 pm

2 stops22h 59m

Rome Fiumicino

Sat 5/9

11:30 am-12:41 pm

2 stops32h 11m

$842

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Fri 4/24

9:10 am-7:55 am

1 stop15h 45m

Rome Fiumicino

Tue 5/5

11:30 am-8:25 pm

1 stop15h 55m

$845

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 4/22

11:42 am-7:35 am

1 stop12h 53m

Rome Fiumicino

Sat 5/9

9:45 am-6:00 pm

1 stop15h 15m

$867

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Thu 4/23

7:45 am-7:55 am

1 stop17h 10m

Rome Fiumicino

Sun 5/10

9:45 am-4:39 pm

1 stop13h 54m

$912

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Mon 5/11

1:00 pm-9:15 am

1 stop13h 15m

Rome Fiumicino

Mon 5/18

6:50 am-8:05 pm

2 stops20h 15m

$929

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sun 4/19

9:10 am-7:55 am

1 stop15h 45m

Rome Fiumicino

Sat 4/25

1:20 pm-1:25 pm

1 stop31h 05m

$950

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Wed 4/15

11:42 am-7:35 am

1 stop12h 53m

Rome Fiumicino

Mon 5/4

9:45 am-5:44 pm

1 stop14h 59m

$993

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Sat 4/11

3:15 pm-7:55 am

1 stop33h 40m

Rome Fiumicino

Sat 4/18

10:00 am-1:25 pm

1 stop34h 25m

$994

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

Fri 5/1

6:54 pm-9:15 am

2 stops31h 21m

Rome Fiumicino

Sun 5/10

6:50 am-8:05 pm

2 stops20h 15m

$1,005

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Showing 1-10 of 36 resultsSorted by cheapest first
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4

Compare providers for flights from St. Louis to Rome

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 St. Louis to Rome in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice 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 St. Louis-Rome flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Rome flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Rome flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Rome 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 St. Louis-Rome 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 St. Louis to Rome

Have a flexible travel schedule? Discover the best time to fly to Rome from St. Louis 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 St. Louis to Rome

How far ahead should I book a flight from St. Louis to Rome?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Rome. Price data was last updated on February 20, 2026.

The best time to book flights from St. Louis to Rome is 29 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from St. Louis to Rome?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Rome (average of $455). Flying from St. Louis to Rome in June is currently the most expensive (average of $1,007). 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.

How much does it cost to fly round-trip from St. Louis to Rome?

Reviews of airlines servicing Rome

Get insights into the airlines that provide service to Rome. 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 Rome. Reviews last updated February 28, 2026.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from St. Louis to Rome. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,244 reviews
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,362 reviews
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,367 reviews
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,757 reviews
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,772 reviews
Delta
7.9
Good
8,244 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Rome. 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 from for flights from St. Louis to Rome?

    If you book a flight to Rome from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Rome per day from 7 different airlines.

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

    Delta and United Airlines can get you from St. Louis to Rome in just under 18h 23m. Your travel time can differ by up to 4h 36m. The distance from St. Louis to Rome is about 5050 mi. This flight may include one or multiple stops.

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

    According to our current data, British Airways ($472), Lufthansa ($506), and KLM ($506) offers the cheapest pricing from St. Louis to Rome. You may be able to fly from St. Louis to Rome for 48% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Rome 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 St. Louis to Rome?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Rome (average of $455). Flying from St. Louis to Rome in June is currently the most expensive (average of $1,007). 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?

Book flights to Rome if you plan to visit one of these locations
Fiumicino
Montepulciano
Santa Marinella

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Rome

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

Top 7 airlines flying from St. Louis to Rome

Discover the top 7 airlines that operate flights from St. Louis to Rome. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$472Average$1,185FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$506Average$987FlexibilityNo cancel feeOn-time76%
KLMCheapest$506Average$983FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$549Average$1,032FlexibilityNo cancel feeOn-time69%
DeltaCheapest$555Average$871FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$665Average$936FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$705Average$1,173FlexibilityNo cancel feeOn-time67%

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