$349 Find Cheap Flights from St. Louis to Italy

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Italy departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from St. Louis to Italy

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Rome
Rome2 stops$780
Milan
Milan1 stop$858
Florence
Florence2 stops$773
Naples
Naples1 stop$751
Palermo
Palermo2 stops$762
Catania
Catania1 stop$777
Bologna
Bologna2 stops$952
Olbia
Olbia1 stop$976
Pisa
Pisa2 stops$799
Cagliari
Cagliari2 stops$1,026
Turin
Turin2 stops$1,118
Genoa
Genoa2 stops$1,156
Verona
Verona1 stop$1,106
Rome
Rome2 stops$780
Milan
Milan1 stop$858
Florence
Florence2 stops$773
Naples
Naples1 stop$751
Palermo
Palermo2 stops$762
Catania
Catania1 stop$777
Bologna
Bologna2 stops$952
Olbia
Olbia1 stop$976
Pisa
Pisa2 stops$799
Cagliari
Cagliari2 stops$1,026
Turin
Turin2 stops$1,118
Genoa
Genoa2 stops$1,156
Verona
Verona1 stop$1,106

Book Cheap St. Louis to Italy Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Italy that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Italy

Mon, Aug 17 - Wed, Aug 26
United Airlines Logo
12:10 pm - 9:40 am
STL
-
NAP
14h 30m
1 stop
United Airlines Logo
6:00 am - 1:25 pm
NAP
-
STL
14h 25m
1 stop
$751United Airlines
Wed, Aug 12 - Thu, Aug 20
British Airways Logo
9:35 pm - 7:05 pm
STL
-
NAP
14h 30m
1 stop
British Airways Logo
3:00 pm - 12:14 am
NAP
-
STL
16h 14m
1 stop
$753British Airways
Mon, Aug 17 - Wed, Aug 26
Lufthansa Logo
12:59 pm - 12:15 pm
STL
-
NAP
16h 16m
2 stops
Lufthansa Logo
6:00 am - 1:25 pm
NAP
-
STL
14h 25m
1 stop
$754Lufthansa
Wed, Aug 12 - Thu, Aug 20
American Airlines Logo
8:07 pm - 7:05 pm
STL
-
NAP
15h 58m
2 stops
American Airlines Logo
3:00 pm - 12:14 am
NAP
-
STL
16h 14m
1 stop
$756American Airlines
Wed, Aug 12 - Thu, Aug 20
Lufthansa Logo
12:59 pm - 12:15 pm
STL
-
NAP
16h 16m
2 stops
Lufthansa Logo
1:15 pm - 10:59 pm
NAP
-
STL
16h 44m
2 stops
$758Lufthansa
Mon, Aug 17 - Wed, Aug 26
United Airlines Logo
7:00 am - 9:40 am
STL
-
NAP
19h 40m
3 stops
United Airlines Logo
6:00 am - 6:42 pm
NAP
-
STL
43h 42m
2 stops
$759United Airlines
Tue, Nov 10 - Wed, Nov 25
Delta Logo
9:45 am - 11:20 am
STL
-
FLR
18h 35m
2 stops
Delta Logo
6:30 am - 8:49 pm
FLR
-
STL
21h 19m
2 stops
$782Delta
Sun, Nov 8 - Wed, Nov 18
Air Canada Logo
4:15 pm - 8:55 am
STL
-
FCO
33h 40m
1 stop
Air Canada Logo
1:15 pm - 2:18 pm
FCO
-
STL
32h 03m
2 stops
$804Air Canada
Mon, Nov 9 - Wed, Nov 18
American Airlines Logo
2:50 pm - 12:50 pm
STL
-
FCO
15h 00m
2 stops
American Airlines Logo
7:50 am - 7:29 pm
FCO
-
STL
18h 39m
2 stops
$806American Airlines
Sun, Jul 26 - Tue, Aug 11
Air Canada Logo
12:10 pm - 12:20 pm
STL
-
NAP
17h 10m
2 stops
Air Canada Logo
11:25 am - 2:02 pm
NAP
-
STL
33h 37m
2 stops
$814Air Canada
Booking Insights

KAYAK's insights & trends for St. Louis to Italy flights

Get data-powered insights and trends into flights from St. Louis to Italy to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Italy?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Italy, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Italy is March, when tickets cost $441 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $676 and $614 respectively.

How far in advance should I book a flight from St. Louis to Italy?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Italy, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Italy, you should book around 6 weeks before departure, which saves you about 50% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$349
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from St. Louis to Rome Fiumicino Airport

FAQs - booking Italy flights

  • How does KAYAK find such low prices on flights from St. Louis to Italy?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Italy.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Italy?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Italy is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Italy?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Italy with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Italy?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Italy up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from St. Louis to Italy

 
Need help choosing which airline to fly with from St. Louis to Italy? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8399 reviews
7.2Food
8.5Crew
7.8Entertainment
7.8Comfort
8.1Boarding
Airline reviews

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

8.0 ExcellentAnonymous, Jun 2026
TPA - LGA
Read more Delta reviews

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

I felt scammed. The priced advertised was different than what I paid. I paid the whole some online. I then got a call 20 minutes later saying I need to paid 70 more person. She said the price online is not the guaranteed price.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

My pillow had a shoe print on it, when I asked if I can have another pillow, I was told “I’m sorry but it is one pillow per guest, do YOU want to turn it inside out” to which I responded , no thanks I will go without. This is generally not ok, but For the price tag I paid flying business this is absolutely unacceptable. Hopefully American Airlines can update their accommodations to bedding that is not tossed on the ground and stepped on, or at least have a couple of extra pillows in hand, incase someone had decided to step on the pillows for what ever reason

The flight from LA to Chicago was smooth and service was very good overall.

The flight from Dallas to Tokyo was not on Japan Airlines. It was on American Airlines. Very disappointed that we did not fly on Japan Airlines. Will not be using you liars again. I’ll just book direct from the airline next time. Wish you could make this right and has us fly on Japan Air when heading back home to the US.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

They made nearly everyone check their bag because the overhead bins are way too small. Extremely inconvenient

Delayed delayed. Poor professionalism. Our seats changed and we pay for them

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

Selected seats 5 months prior to date. Had email confirmation and seats were not honoured. Family did not sit together

Loved and was pleasantly surprised by the food!! Request Lufthansa to help transiting passengers at Munich (confusion whether to go thru passport control or not).

The flight was comfortable and the staff were helpful and friendly. However, we did not know we were flying PAL until we arrived in Canada, so it was a bit disconcerting. In addition, which port we were leaving from was confusing.

They did not let us board because one member needed a transit visa, which was not evident at the time of ticket purchase.

I was charge a baggage checking fee $68!! I volunteered to check my duffle bag which usually goes under my seat!

I did not like anything because the flight was cancelled yesterday and I did not get to arrive on time in Toronto as I was rebooked with another airline. This caused me to be really stressed out as I am an individual with back injury and to be forced to stay longer in an airport to accommodate a change of airline and the transfers associated with it Due to this I am probably not going to book through your website to eliminate this potentially chaos in the future

No food or entertainment for a short flight but satisfied with that.

shittiest airline in the hemisphere. To improve - start thinking you're flying people, not cattle

Easy boarding, inflight refreshments came on time and comfortable seat

It was good that our flight left early. It was a nice smooth flight and landing.

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

Never made it to Lufthansa because of Air Canadas negligence.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

Everything you need to know for your flight from St. Louis to Italy

Information on your arrival and departure airports