In terms of precipitation, rainfall in Rome Ciampino Airport 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 Ciampino Airport when rainfall is around 0.6 in.

If weather is an important factor for your trip to Rome Ciampino Airport, 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).

How far in advance should I book a flight from St. Louis to Rome Ciampino Airport?

Travelers have found it’s best to book a flight 41 days in advance to save up to 139% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 41 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Rome Ciampino Airport 1-2 weeks in advance for as low as $1,320, or $1,570 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to Rome Ciampino Airport?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to Rome Ciampino Airport. Flights to Rome Ciampino Airport from St. Louis in February are about $1,066 on average during February, but can be found for as low as $659.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Rome Ciampino Airport as you normally would.

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.

$405+ Flights from St. Louis to Rome Ciampino Airport

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Cheap flight deals from St. Louis to Ciampino

Round-trip from	$1,417 (Mytrip)
One-way from	$405 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$1,303

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 ($360 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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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 July 29, 2025.

Wed 10/83:30 pmSTL - CIA

2 stops16h 30mMultiple Airlines

Tue 10/149:50 pmCIA - STL

2 stops22h 40mMultiple Airlines

Deal found 7/28

$1,417

Best flights from St. Louis to Ciampino
Discover carefully curated flight deals from St. Louis to Ciampino that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Wed 10/83:30 pmSTL - CIA

2 stops16h 30mMultiple Airlines

Tue 10/149:50 pmCIA - STL

2 stops22h 40mMultiple Airlines

Deal found 7/28

$1,417

Last-minute flights from St. Louis to Ciampino
Discover last-minute flight deals from St. Louis to Ciampino. Data last updated July 29, 2025 and is based on user searches.

Thu 7/318:15 amSTL - CIA

3 stops29h 55mMultiple Airlines

Sat 8/28:00 pmCIA - STL

3 stops30h 00mMultiple Airlines

Deal found 7/27

$1,690

One-way flights from St. Louis to Ciampino
Search for one-way flight options from St. Louis to Ciampino. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Mon 9/151:57 pmSTL - CIA

3 stops44h 48mMultiple Airlines

Deal found 7/28

$405

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Rome Ciampino Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisRome

STL - CIA

STLCIA

Lambert-St Louis

Wed 10/8

3:30 pm-3:00 pm

2 stops16h 30m

Rome Ciampino

Tue 10/14

9:50 pm-1:30 pm

2 stops22h 40m

$1,417

St. LouisRome

STL - CIA

STLCIA

Lambert-St Louis

Mon 9/15

1:57 pm-5:45 pm

3 stops44h 48m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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

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.

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$405+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from St. Louis to Ciampino

Cheapest flights from St. Louis to CiampinoExplore 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 July 29, 2025.

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 July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Rome Ciampino Airport that are best for you.

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.

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?

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

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

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

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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 July 29, 2025.