What is the cheapest airline that flies from Rome to Ontario?

Iberia, British Airways, and American Airlines are the most popular carriers operating from Rome to Ontario

What airlines fly to Ontario?

ITA Airways, Norse Atlantic Airways and British Airways are the top three most popular airlines that fly to Ontario from Rome according to our data. ITA Airways is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 5 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Rome to Ontario Airport?

Prices for flights from Rome to Ontario Airport refresh daily.

How old do you have to be to fly from Rome to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rome to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$394 Cheap Flights from Rome to Ontario in 2025/26

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Find the cheapest flights from Rome to Los Angeles

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Cheap round-trip flights

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11:00 am - 10:23 pmFCO-ONT

20h 23m1 stop

10:47 am - 10:45 amONT-FCO

14h 58m1 stop

$645Multiple Airlines

Find Deal

Fri, Nov 21 - Fri, Dec 5

11:00 am - 10:23 pmFCO-ONT

20h 23m1 stop

10:47 am - 10:45 amONT-FCO

14h 58m1 stop

$647Multiple Airlines

Find Deal

Fri, Nov 21 - Fri, Dec 5

1:10 pm - 5:55 pmFCO-ONT

37h 45m2 stops

6:46 am - 9:00 amONT-FCO

17h 14m2 stops

$656American Airlines

Find Deal

Fri, Feb 27 - Tue, Mar 3

8:35 am - 5:51 pmFCO-ONT

42h 16m2 stops

6:46 am - 9:00 amONT-FCO

17h 14m2 stops

$668American Airlines

Find Deal

Fri, Feb 27 - Tue, Mar 3

11:00 am - 11:57 pmFCO-ONT

21h 57m1 stop

7:00 am - 10:45 amONT-FCO

18h 45m1 stop

$734Iberia

Find Deal

Fri, Nov 21 - Fri, Dec 5

11:00 am - 10:23 pmFCO-ONT

20h 23m1 stop

10:38 am - 10:45 amONT-FCO

15h 07m1 stop

$736British Airways

Find Deal

Sun, Nov 23 - Sun, Nov 30

9:45 am - 10:31 pmFCO-ONT

20h 46m1 stop

7:00 am - 7:45 amONT-FCO

15h 45m1 stop

$746United Airlines

Find Deal

Fri, Oct 31 - Mon, Nov 10

1:35 pm - 10:53 pmFCO-ONT

18h 18m2 stops

5:05 am - 9:25 amONT-FCO

19h 20m2 stops

$762United Airlines

Find Deal

Fri, Jan 16 - Fri, Jan 23

11:00 am - 10:23 pmFCO-ONT

20h 23m1 stop

10:47 am - 10:45 amONT-FCO

14h 58m1 stop

$767British Airways

Find Deal

Fri, Nov 21 - Fri, Dec 5

4:20 pm - 11:53 amFCO-ONT

28h 33m2 stops

6:10 am - 10:45 amONT-FCO

19h 35m1 stop

$782Iberia

Find Deal

Wed, Nov 5 - Sun, Nov 9

American Airlines flights from Rome to Ontario

Our best American Airlines deals on Rome to Ontario flight tickets

American Airlines

Feb 27

FCO1:10 pmRome Fiumicino

37h 45m

2 stops

ONT5:55 pmOntario

Mar 3

ONT6:46 amOntario

17h 14m

2 stops

FCO9:00 amRome Fiumicino

$656

Find similar

American Airlines

Feb 27

FCO8:35 amRome Fiumicino

42h 16m

2 stops

ONT5:51 pmOntario

Mar 3

ONT6:46 amOntario

17h 14m

2 stops

FCO9:00 amRome Fiumicino

$668

Find similar

American Airlines

Dec 4

FCO1:10 pmRome Fiumicino

18h 09m

1 stop

ONT10:19 pmOntario

Dec 11

ONT10:47 amOntario

14h 58m

1 stop

FCO10:45 amRome Fiumicino

$674

Find similar

Iberia flights from Rome to Ontario

Our best Iberia deals on Rome to Ontario flight tickets

Iberia

Nov 21

FCO11:00 amRome Fiumicino

21h 57m

1 stop

ONT11:57 pmOntario

Dec 5

ONT7:00 amOntario

18h 45m

1 stop

FCO10:45 amRome Fiumicino

$734

Find similar

Iberia

Nov 5

FCO4:20 pmRome Fiumicino

28h 33m

2 stops

ONT11:53 amOntario

Nov 9

ONT6:10 amOntario

19h 35m

1 stop

FCO10:45 amRome Fiumicino

$782

Find similar

Iberia

Dec 24

FCO1:10 pmRome Fiumicino

31h 43m

1 stop

ONT11:53 amOntario

Dec 31

ONT10:47 amOntario

14h 58m

1 stop

FCO10:45 amRome Fiumicino

$997

Find similar

Fly from

Fly to

Route

Depart

Return

Price

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 11/21

11:00 am-10:23 pm

1 stop20h 23m

Ontario

Fri 12/5

10:47 am-10:45 am

1 stop14h 58m

$645

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 11/21

11:00 am-10:23 pm

1 stop20h 23m

Ontario

Fri 12/5

10:47 am-10:45 am

1 stop14h 58m

$647

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 2/27

1:10 pm-5:55 pm

2 stops37h 45m

Ontario

Tue 3/3

6:46 am-9:00 am

2 stops17h 14m

$656

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 2/27

8:35 am-5:51 pm

2 stops42h 16m

Ontario

Tue 3/3

6:46 am-9:00 am

2 stops17h 14m

$668

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 11/21

11:00 am-11:57 pm

1 stop21h 57m

Ontario

Fri 12/5

7:00 am-10:45 am

1 stop18h 45m

$734

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Sun 11/23

11:00 am-10:23 pm

1 stop20h 23m

Ontario

Sun 11/30

10:38 am-10:45 am

1 stop15h 07m

$736

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 10/31

9:45 am-10:31 pm

1 stop20h 46m

Ontario

Mon 11/10

7:00 am-7:45 am

1 stop15h 45m

$746

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 1/16

1:35 pm-10:53 pm

2 stops18h 18m

Ontario

Fri 1/23

5:05 am-9:25 am

2 stops19h 20m

$762

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 11/21

11:00 am-10:23 pm

1 stop20h 23m

Ontario

Fri 12/5

10:47 am-10:45 am

1 stop14h 58m

$767

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Wed 11/5

4:20 pm-11:53 am

2 stops28h 33m

Ontario

Sun 11/9

6:10 am-10:45 am

1 stop19h 35m

$782

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Rome to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $769. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Rome to Ontario for around $800.

What is the cheapest time of day to depart on your flight to Ontario?

In the morning is the cheapest time of day to fly from Rome to Ontario when you can find flight prices for as low as $777. Flying to Ontario in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $827 on average. Flights to Ontario from Rome at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Rome to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Rome to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Rome to Ontario (ROM to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rome to Ontario

Direct flights	None

There are no direct flights from Rome to Ontario. There are no popular flight routes from Rome to Ontario.

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How far is Rome to Ontario by plane?
A flight from Rome to Ontario will travel around 6306.5 mi. A reasonable flight in good conditions will take 17h 31m.
When did momondo last update prices for flights from Rome to Ontario Airport?
Prices for flights from Rome to Ontario Airport refresh daily.
How old do you have to be to fly from Rome to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rome to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Rome to Ontario?

It is quick and easy to find Rome to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

Can I find flights from Rome to Ontario with flexible booking policies on momondo?

Flights from Rome to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Rome to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Rome to Ontario.

I’m not ready to book a flight from Rome to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Rome to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.