Cheap Flight Tickets from Ontario (ONT) to Rome (FCO), Starting at $774

Good to Know: Cheapest and Fastest ONT - FCO Flights

Useful information for finding best airline tickets from Ontario International to Leonardo da Vinci–Fiumicino on your next trip.

Cheapest Round Trip Flight

$774

DL Delta Airlines • 1 stop • 26h 48m

Nov 01 – Nov 17

The cheapest round trip flight from Ontario to Rome (ONT-FCO-ONT) is currently $774

🔍 Search Flights

Fastest Flight

25h 30m

The fastest nonstop flight from Ontario to Rome (ONT-FCO) takes 25h 30m

Top Airlines Flying from Ontario to Rome

Delta Airline, DL

Delta Airlines

Latest Flight Deals from Ontario (ONT) to Rome (FCO)

Compare and book low fare round-trip air tickets from Ontario to Rome. Ideal for travelers with confirmed return itineraries.

Nov 01 - Nov 17, Economy
DL
Ontario → Rome
26h 48m
7:07 AM - 8:15 AM • 1 stop
DL
Ontario → Rome
33h 46m
10:25 AM - 9:51 PM • 2 stops
$774
Delta Airlines
Nov 01 - Nov 17, Economy
DL
Ontario → Rome
31h 53m
7:07 AM - 11:20 AM • 1 stop
DL
Ontario → Rome
30h 44m
11:45 AM - 9:29 PM • 1 stop
$774
Delta Airlines
Nov 01 - Nov 17, Economy
DL
Ontario → Rome
26h 48m
7:07 AM - 8:15 AM • 1 stop
DL
Ontario → Rome
30h 44m
11:45 AM - 9:29 PM • 1 stop
$774
Delta Airlines
Nov 01 - Nov 17, Economy
DL
Ontario → Rome
31h 53m
7:07 AM - 11:20 AM • 1 stop
DL
Ontario → Rome
34h 17m
12:55 PM - 12:52 AM • 2 stops
$774
Delta Airlines
Oct 01 - Oct 21, Economy
DL
Ontario → Rome
30h 45m
7:05 AM - 10:50 AM • 1 stop
DL
Ontario → Rome
32h 25m
1:10 PM - 11:55 PM • 1 stop
$881
Delta Airlines
Oct 01 - Oct 21, Economy
DL
Ontario → Rome
25h 30m
7:05 AM - 7:35 AM • 1 stop
DL
Ontario → Rome
30h 10m
2:45 PM - 11:55 PM • 1 stop
$881
Delta Airlines

Fly from Ontario to Rome with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Ontario to Rome? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Ontario to Rome Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to FCO?
The most popular airline flying from Ontario to Rome are
Can I fly from ONT to FCO non-stop?
NO
Which airlines fly nonstop between Ontario and Rome?
The non-stop flights between Ontario and Rome are .
What’s the earliest departure time from ONT to FCO Airport?
The earliest flight leaves ONT at 7:05 am and lands in FCO - Leonardo da Vinci–Fiumicino
What are the airports in Rome?
FCO
Can I make changes to my Ontario to Rome flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to FCO?
Read the fare rules of the Ontario to Rome air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and Rome?
operate flights between Ontario and Rome
How long does a flight from Ontario to Rome take?
It takes approximately 13 hour to fly non-stop from ONT to FCO, which is 6321.21 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Rome (FCO) ?
In the past couple of days, the cheapest tickets to FCO from ONT were found on DL : USD 774
Do I need a passport to fly between ONT and FCO?
Yes
What’s the latest departure time from ONT to FCO ?
The last flight leaves ONT at 7:07 am

Ontario (ONT) to Rome (FCO): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport Leonardo da Vinci–Fiumicino , Rome, IT
Distance 6321 miles

More Flight Options for Ontario (ONT) and Rome (FCO)

Why Fareleaders for ONT to FCO Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Ontario to Rome flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on ONT to FCO flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Ontario to Rome flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Ontario (ONT) to Rome (FCO)
Terms and Conditions*