$312 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 10/4. 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$736
Milan
Milan1 stop$791
Florence
Florence2 stops$763
Naples
Naples1 stop$861
Palermo
Palermo2 stops$770
Catania
Catania2 stops$959
Bologna
Bologna2 stops$942
Olbia
Olbia2 stops$981
Pisa
Pisa1 stop$889
Cagliari
Cagliari2 stops$997
Turin
Turin2 stops$921
Genoa
Genoa2 stops$1,048
Verona
Verona1 stop$1,075
Rome
Rome2 stops$736
Milan
Milan1 stop$791
Florence
Florence2 stops$763
Naples
Naples1 stop$861
Palermo
Palermo2 stops$770
Catania
Catania2 stops$959
Bologna
Bologna2 stops$942
Olbia
Olbia2 stops$981
Pisa
Pisa1 stop$889
Cagliari
Cagliari2 stops$997
Turin
Turin2 stops$921
Genoa
Genoa2 stops$1,048
Verona
Verona1 stop$1,075

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

Sun, Aug 9 - Tue, Aug 25
Air Canada Logo
1:13 pm - 11:45 am
STL
-
FCO
15h 32m
2 stops
Air Canada Logo
11:30 am - 6:42 pm
FCO
-
STL
14h 12m
1 stop
$736Air Canada
Tue, Nov 10 - Wed, Nov 25
Lufthansa Logo
7:04 pm - 4:30 pm
STL
-
FLR
14h 26m
2 stops
Lufthansa Logo
6:30 am - 1:45 pm
FLR
-
STL
14h 15m
1 stop
$763Lufthansa
Sun, Nov 8 - Wed, Nov 18
United Airlines Logo
8:40 am - 8:30 am
STL
-
FCO
16h 50m
1 stop
United Airlines Logo
1:15 pm - 12:40 pm
FCO
-
STL
30h 25m
2 stops
$769United Airlines
Sun, Nov 8 - Wed, Nov 18
United Airlines Logo
8:40 am - 8:30 am
STL
-
FCO
16h 50m
1 stop
United Airlines Logo
1:15 pm - 12:40 pm
FCO
-
STL
30h 25m
2 stops
$770United Airlines
Tue, Nov 10 - Wed, Nov 25
Lufthansa Logo
2:00 pm - 4:30 pm
STL
-
FLR
19h 30m
2 stops
Lufthansa Logo
6:30 am - 4:56 pm
FLR
-
STL
17h 26m
2 stops
$771Lufthansa
Tue, Dec 1 - Tue, Dec 15
American Airlines Logo
6:45 pm - 7:45 pm
STL
-
MXP
18h 00m
2 stops
American Airlines Logo
10:20 am - 7:30 pm
MXP
-
STL
16h 10m
2 stops
$831American Airlines
Sun, Dec 13 - Fri, Dec 18
Delta Logo
9:00 am - 9:50 am
STL
-
MXP
17h 50m
2 stops
Delta Logo
12:00 pm - 11:18 pm
MXP
-
STL
18h 18m
2 stops
$835Delta
Sun, Dec 13 - Fri, Dec 18
Delta Logo
2:18 pm - 1:55 pm
STL
-
LIN
16h 37m
2 stops
Delta Logo
6:30 am - 11:18 pm
LIN
-
STL
23h 48m
2 stops
$842Delta
Sun, Aug 9 - Tue, Aug 25
British Airways Logo
9:40 pm - 6:30 pm
STL
-
LIN
13h 50m
1 stop
British Airways Logo
7:25 am - 7:30 pm
LIN
-
STL
19h 05m
1 stop
$873British Airways
Mon, Oct 5 - Mon, Oct 12
American Airlines Logo
10:14 am - 11:30 am
STL
-
PSA
18h 16m
2 stops
American Airlines Logo
8:55 pm - 8:08 pm
PSA
-
STL
30h 13m
2 stops
$901American Airlines
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 3 weeks before departure, which saves you about 50% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$312
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from St. Louis to Naples

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.
7.8
DeltaOverall score based on 8445 reviews
7.8Entertainment
7.2Food
8.5Crew
7.8Comfort
8.1Boarding
Airline reviews

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

10.0 ExcellentPaula, Jun 2026
STL - ATL
Read more Delta reviews

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

This is the first time I've been disappointed with Delta. I was called by Delta to see if I would volunteer to change flights since my original flight home was overbooked. I accepted. The modified booking only provided me a 35 minute layover - when you subtract the fact that boarding closes for a flight 15 minutes early, that gave me 20 minutes to run for one end of the airport to the other. I barely made it. On the 2.5 hour flight to Tampa, the crew repeatedly let us know over the intercom that they cannot serve drinks or snacks due to safety/turbulence. I would have accepted this reason if they did not CONTINUALLY SERVE DRINKS AND COOKED FOOD to First class. If safety is the excuse then the entire plane should be strapped in for safety. On top of this the air conditioning vents were not working correctly and the plane was uncomfortably warm. I love Delta and am a loyal Delta traveler, and I have never had an experience like this. I don't know if there's a disconnect between availability among third-party sites like KAYAK and the airlines or what, but when overbooking causes issues like this for travelers it should be reviewed and changes to the booking process should be made. I blame BOTH KAYAK and Delta for this terrible experience.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

Fine not above and beyond as I had a connection that was delayed due to maintenance

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Flight was canceled 12 hours before take-off due to “weather”

We were told our seats were switched which put us in row 1 instead of 12. We were not able to keep our personal items with us. This caused us not to be able to have our gum to pop our ears and we weren’t able to get our iPads out due to the seat belt sign never turning off.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

Good but I don’t received my bags yet is been 5days still no update

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

Flight was diverted to bologna due to fog sfter circuling hours in air

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

Friendlier staff who are nice to the elderly who need assistance

Service was great. Flight was delayed an hour which made our connection very tight and stressful. But we fortunately made it.

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

I appreciate the fact that the flight took off and landed on time What I didn’t like they never offer a snack eg nuts/cookies/chips

Air Canada seems to be understaffed which caused delays at every point of the flight—delays at departure, delays in the air (circling), delay after landing, delays at the gate before disembarking. Horrible experience. And my son, who departed Toronto today, experienced delays because the passport scanning system was down and was told that he would not be able to board his flight. Toronto airport is a mess!!!!

Never made it to Lufthansa because of Air Canadas negligence.

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

Boarding and flight update was fantastic as I experienced about a 10-15 delayed for both flights. The food served onboard was great; the service of the flight attendants was excellent.

Complete mess. Our reservation was mistakenly cancelled. After almost missing the connection and walking all over the Munich airport, the Service desk got involved and we were run to our flight. Not all 4 of us in Business and not seated together as originally booked. This was the worst treatment I have ever had. And I travel a lot. 1K million miler.

The flight was delayed more than 1.5 hours. Phone calls to united did not satisfy our need to get to Chicago to met family for fight to europe. I was told the flight was booked thru luftansa and united could not make adjustments. When call luftansa they were unaware of the significant delay on the united flight out of mci. They would not authorize a flight change. We went to the airport, as if we would be flying as scheduled, United checked us in, as if our flight would leave as scheduled. We took our bag to be checked to the baggage drop and the agent their confirmed our flight was significantly delayed. She worked for 30 min to get us on another flight. We ended up flying to Denver then to Munich. The rest of the family that flew to Chicago for our meet up and flight to Europe ended up flying to Munich alone. We meet up in Munich for our last leg to luxembourg. In luxembourg we learned on bag was scheduled on our delayed flight. The flight was canceled and we did not receive the bag in lux. We filed a lost back claim. Now 3 days later we STILL do not have the bag. It is apparently in luxembourg and they maybe tried to deliver, however the names on the door of the air b&b do not match the name on the baggage claim so the French speaking delivery person called no one could understand him so he took the bag and left. My brother, traveling with me under a different reservation , has been without essentials for 3 days. One or all of us has stayed "home" each day waiting on the bag. Today was my turn. Delivery window was 10:30 to 2:30. No attempt to knock or ring bell. After the hang up call, my brother called me and told me to check the door. There was nothing there. No sign of attempted delivery, no delivery man, nothing. Being unable to change clothes and having family members take turns waiting on a bag that never comes has ruined this family vacation. Thanks United/Luftansa

The flight left an hour late and no explanation. Food was basically a few snacks out of bags and tiny cup of soda. Crew was pretty friendly.

The The check in process was terrible on both ends. It was not clear if we should use the United, Lufthansa, or Aragrant number. It took over an hour to check in on the front end – and then at return the Lufthansa online check in failed multiple times and only after two calls to their phone number could we accomplish the task. The link to the Kayak site provided no access for check in. This difficulty and ambiguity on both ends will affect our interest in using Kayak for foreign travel in the future.

Lufhtansa has and can do better. The food was inedible. No individual light for reading.

You lost my bag then waiting on the phone for 30 mins for customer service just to be directed to call another number

Boarding staff, crew and food needs a lot of improvement!! It was awful Aircraft was old with minimal legspace

Someone switched seats in business class so they could sit together and we were left apart (3). Very disappointing. Staff did nothing

Worst airline in the world. They downgraded me from business class to economy with no compensation.

The airline was efficient and accommodating to work with though there was a delay. Appreciate the service and smooth experience!

Flight attendant kept banging her cart into my aisle seat. Hard. Couldn’t lean seat back. Should be warned of limitations when booking seat

Flight delay of 4 1/2 hours with no reason for over 3 hours. Missed our connection in Rome & had to pay for an additional flight.

Our flight from ORD was cancelled and BA rebooked is on a flight that originated before the time that they booked us on it. They did not realize we were already arrived in Chicago. Then American Airlines helped us get checked in to the new flight (the one BA assigned to us) which flight we did take although it was delayed about 2 hours, and our assigned seats that we paid for - on the original flight- were lost we did at least get to sit together. It was not too painful for all the changes and we made it to the UK alright though all in all with all the delays and cancellations the flight took about 20 hours to get us here.

though there was space in the cabin they asked us to check in our trolleys. As a result lots of things arrived damaged in Larnaca. They were fragile. When we asked the attendants why that.....they said talk to the captain!!! Unbelievable!

I mentioned in advance that I am gluten free, however, they did not have any options on the plane for me. That was disappointing. Otherwise, the flight was totally fine.

The flight was delayed for several hours. After many hours of waiting, they said it was delayed until the next day. This is completely understandable, as the staff had to wait on Boeing to approve the plane. However, the staff said hotel and meal vouchers would be issued via email (they never were). An hour after leaving the airport, our flight was cancelled.

Boarding ,checking in was easy and quick . Comfort was not good.

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

Information on your arrival and departure airports