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$380+ 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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ROM
feb. 4 — feb. 111
mar. 2/4
mar. 2/11
1 adult, Economy
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The best prices from Lambert-St Louis to Rome are usually found in February or November, booked 27 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Cheap 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 enero 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$707
(United Airlines)

One-way from

$380
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$966
Provider with most accurate pricing for Lambert-St Louis-Rome (ROM) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Rome (ROM) flights.
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From Lambert-St Louis to Rome (ROM)
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One-way flight from Lambert-St Louis to Rome (ROM)
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Highest demand for flights based on searches. 23% potential increase in price ($359 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find 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 enero 30, 2025.

This FlightHub deal was found by Cheapflights users on 1/29. 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.
lun. 11/103:30 pmSTL - FCO
2 stops36h 35mScandinavian Airlines
mié. 11/2611:55 amFCO - STL
2 stops42h 44mScandinavian Airlines
Deal found 1/29$611
This ITA Airways deal was found by Cheapflights users on 1/28. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2212:00 pmSTL - FCO
1 stop13h 15mMultiple Airlines
mié. 11/510:15 amFCO - STL
1 stop17h 39mMultiple Airlines
Deal found 1/28$672
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/228:25 amSTL - FCO
1 stop16h 50mUnited Airlines
mié. 11/57:05 amFCO - STL
2 stops15h 21mUnited Airlines
Deal found 1/28$689
This Air Canada deal was found by Cheapflights users on 1/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/224:05 pmSTL - FCO
2 stops34h 10mAir Canada
mié. 11/57:05 amFCO - STL
2 stops15h 21mAir Canada
Deal found 1/28$691
This Delta deal was found by Cheapflights users on 1/30. 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.
dom. 11/96:00 amSTL - FCO
1 stop21h 30mDelta
jue. 11/279:00 amFCO - STL
1 stop14h 47mDelta
Deal found 1/30$729
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/123:45 pmSTL - FCO
1 stop19h 05mLufthansa
mar. 2/186:45 pmFCO - STL
1 stop26h 10mLufthansa
Deal found 1/28$730
This KLM deal was found by Cheapflights users on 1/29. 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.
dom. 11/911:51 amSTL - FCO
2 stops14h 19mKLM
mié. 11/2612:45 pmFCO - STL
1 stop15h 02mKLM
Deal found 1/29$758
This Expedia deal was found by Cheapflights users on 1/30. 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.
jue. 2/272:10 pmSTL - FCO
2 stops25h 40mBritish Airways
jue. 3/61:10 pmFCO - STL
1 stop14h 41mBritish Airways
Deal found 1/30$787
This Ovago deal was found by Cheapflights users on 1/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/43:10 pmSTL - FCO
2 stops36h 45mAer Lingus
mar. 2/1111:35 amFCO - STL
2 stops17h 34mAer Lingus
Deal found 1/30$929
This American Airlines deal was found by Cheapflights users on 1/29. 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.
jue. 4/105:45 amSTL - FCO
1 stop20h 25mAmerican Airlines
mar. 4/2212:10 pmFCO - STL
1 stop14h 13mAmerican Airlines
Deal found 1/29$1,010
This Cheapflightsfares deal was found by Cheapflights users on 1/29. 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.
mié. 10/112:07 pmSTL - FCO
1 stop12h 58mIberia
mar. 10/1411:05 amFCO - STL
1 stop19h 20mIberia
Deal found 1/29$1,044
This oojo deal was found by Cheapflights users on 1/30. 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.
lun. 5/53:43 pmSTL - FCO
2 stops24h 47mTurkish Airlines
dom. 5/187:55 pmFCO - STL
2 stops25h 52mTurkish Airlines
Deal found 1/30$1,059

Find flights from St. Louis to Rome within your budget

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 enero 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

mié. 2/12

3:45 pm-5:50 pm

1 stop19h 05m

Rome Fiumicino

mar. 2/18

9:40 am-3:06 pm

2 stops36h 26m

$707

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

mié. 2/12

3:45 pm-5:50 pm

1 stop19h 05m

Rome Fiumicino

mar. 2/18

6:45 pm-1:55 pm

1 stop26h 10m

$730

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

dom. 3/30

6:50 am-10:05 am

2 stops20h 15m

Rome Fiumicino

mar. 4/8

12:20 pm-11:30 pm

2 stops18h 10m

$734

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

mié. 3/5

12:15 pm-12:05 am

3 stops28h 50m

Rome Fiumicino

mié. 3/12

6:05 am-11:45 am

3 stops35h 40m

$747

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

mié. 3/5

3:50 pm-8:50 am

2 stops34h 00m

Rome Fiumicino

mié. 3/12

11:15 am-3:06 pm

2 stops33h 51m

$750

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

jue. 2/27

2:10 pm-10:50 pm

2 stops25h 40m

Rome Fiumicino

jue. 3/6

1:10 pm-8:51 pm

1 stop14h 41m

$787

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

mar. 2/18

10:59 am-10:30 am

1 stop16h 31m

Rome Fiumicino

vie. 3/28

9:20 am-8:18 pm

1 stop16h 58m

$957

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

jue. 4/10

5:45 am-9:10 am

1 stop20h 25m

Rome Fiumicino

mar. 4/22

12:10 pm-7:23 pm

1 stop14h 13m

$1,010

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

lun. 5/5

3:43 pm-11:30 pm

2 stops24h 47m

Rome Fiumicino

dom. 5/18

7:55 pm-2:47 pm

2 stops25h 52m

$1,059

St. LouisRome

STL - FCO

STLFCO

Lambert-St Louis

vie. 3/14

7:10 pm-6:55 am

1 stop29h 45m

Rome Fiumicino

mié. 3/26

9:20 am-8:18 pm

1 stop16h 58m

$1,167

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 20 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 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.

Travel insights for flights from St. Louis to Rome

Get recent, data-driven insights about flights from St. Louis to Rome including ideal travel times, pricing trends, and more.

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 $644). Flying from St. Louis to Rome in June is currently the most expensive (average of $1,254). 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.

What is the cheapest time of day to fly from STL to ROM?

Find hourly flight availability from St. Louis to Rome. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 30, 2025.

When flying from St. Louis to Rome, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 9% versus a flight in the evening.

Rainfall in Rome by month

Plan your trip to Rome by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Rome ranges from 0.6 - 4.4 inches per month. November is typically the wettest month, when rainfall can reach 4.4 in. June is typically the driest time to visit Rome when rainfall is around 0.6 in.

Temperature in Rome by month

Plan your trip to Rome by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Rome, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

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 enero 30, 2025.
Read through reviews of airlines operating flights from St. Louis to Rome, such as Delta, KLM and Air France. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,450 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,335 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,475 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,906 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Turkish Airlines
7.3
Good
3,903 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 8 different airlines.

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

    According to our current data, United Airlines ($707), Lufthansa ($730), and Delta ($734) offers the cheapest pricing from St. Louis to Rome. You may be able to fly from St. Louis to Rome for 39% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from St. Louis to Rome one-way?

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as $410. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from St. Louis to Rome for a low price.

  • 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 $644). Flying from St. Louis to Rome in June is currently the most expensive (average of $1,254). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Fiumicino
Gaeta
Ciampino
Montepulciano
Ponza

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Top 8 airlines flying from St. Louis to Rome

Discover the top 8 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 enero 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$630Average$1,026FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$668Average$1,167FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$687Average$1,136FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$708Average$1,117FlexibilityNo cancel feeOn-time70%
DeltaCheapest$720Average$1,092FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$721Average$1,157FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$738Average$1,213FlexibilityNo cancel feeOn-time67%
KLMCheapest$800Average$1,171FlexibilityNo cancel feeOn-time75%
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