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$598+ Cheap flights from St. Louis (STL) to Ciampino (CIA)

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CIA
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from St. Louis to Ciampino

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Ciampino (CIA). 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 28, 2025.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,324
(Mytrip)

One-way from

$598
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$906
Provider with most accurate pricing for Lambert-St Louis-Rome Ciampino flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Rome Ciampino flights.
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From Lambert-St Louis to Rome Ciampino
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One-way flight from Lambert-St Louis to Rome Ciampino
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Highest demand for flights based on searches. 25% potential increase in price ($364 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from St. Louis to Ciampino

Cheapest flights from St. Louis to Ciampino
Explore the most affordable flight options available from St. Louis to Ciampino. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 12/263:50 pmSTL - CIA
2 stops22h 55mMultiple Airlines
Tue 12/306:10 pmCIA - STL
2 stops26h 45mMultiple Airlines
Deal found 10/27$1,755
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 10/314:50 pmSTL - CIA
3 stops20h 10mMultiple Airlines
Sun 11/29:20 pmCIA - STL
3 stops33h 36mMultiple Airlines
Deal found 10/27$1,973

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Ciampino 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 October 28, 2025.
Use the filters below to find and compare flights from St. Louis to Rome Ciampino Airport that are best for you.

Fly from

St. Louis

Fly to

Ciampino

Route

Depart

Return

Price

St. LouisRome

STL - CIA

STLCIA

Lambert-St Louis

Thu 1/8

4:05 pm-8:50 pm

3 stops21h 45m

Rome Ciampino

Sat 1/17

8:00 pm-1:55 pm

2 stops24h 55m

$1,324

St. LouisRome

STL - CIA

STLCIA

Lambert-St Louis

Fri 12/26

3:50 pm-9:45 pm

2 stops22h 55m

Rome Ciampino

Tue 12/30

6:10 pm-1:55 pm

2 stops26h 45m

$1,755

St. LouisRome

STL - CIA

STLCIA

Lambert-St Louis

Fri 10/31

4:50 pm-7:00 pm

3 stops20h 10m

Rome Ciampino

Sun 11/2

9:20 pm-11:56 pm

3 stops33h 36m

$1,973

St. LouisRome

STL - CIA

STLCIA

Lambert-St Louis

Thu 4/9

10:42 am-10:35 am

3 stops40h 53m

$598

St. LouisRome

STL - CIA

STLCIA

Lambert-St Louis

Tue 12/30

10:48 am-9:15 pm

3 stops27h 27m

$607

St. LouisRome

STL - CIA

STLCIA

Lambert-St Louis

Sat 12/27

4:27 pm-9:45 am

3 stops58h 18m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

  • Most accurate provider: When it comes to deals on St. Louis-Rome Ciampino Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Rome Ciampino Airport flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from St. Louis-Rome Ciampino Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Rome Ciampino Airport flights, Cheapflights users trust AranGrant the most. AranGrant 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 Ciampino Airport 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 Ciampino

Have a flexible travel schedule? Discover the best time to fly to Ciampino 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.

Related info for your journey

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

    If you book a flight to Rome Ciampino 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 Ciampino per day from 0 different airlines.

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

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

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

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

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

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

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

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