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 41% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 4 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.

$388 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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8:20 pm - 10:08 am

FCO

ONT

22h 48m2 stops

3:09 pm - 9:55 pm

ONT

FCO

21h 46m2 stops

$620American Airlines

Mon, Jan 19 - Sun, Jan 25

8:00 pm - 6:45 pm

FCO

ONT

31h 45m2 stops

10:58 am - 4:55 pm

ONT

FCO

20h 57m2 stops

$623British Airways

Fri, Jan 16 - Fri, Jan 30

11:35 am - 10:30 pm

FCO

ONT

18h 55m1 stop

10:56 am - 10:35 am

ONT

FCO

15h 39m1 stop

$625Multiple Airlines

Fri, Mar 13 - Sun, Mar 22

11:35 am - 11:59 pm

FCO

ONT

20h 24m1 stop

10:56 am - 10:35 am

ONT

FCO

15h 39m1 stop

$633Multiple Airlines

Mon, Mar 9 - Mon, Mar 23

11:05 am - 8:31 am

FCO

ONT

30h 26m2 stops

3:05 pm - 7:15 pm

ONT

FCO

19h 10m2 stops

$650American Airlines

Thu, Apr 16 - Mon, Apr 20

7:20 am - 9:56 pm

FCO

ONT

23h 36m2 stops

12:55 pm - 3:55 pm

ONT

FCO

18h 00m2 stops

$661British Airways

Thu, Apr 23 - Mon, May 4

1:25 pm - 11:40 pm

FCO

ONT

19h 15m1 stop

11:01 am - 12:05 pm

ONT

FCO

16h 04m1 stop

$672Multiple Airlines

Thu, Apr 23 - Mon, May 4

11:05 am - 9:36 pm

FCO

ONT

19h 31m2 stops

6:00 am - 12:05 pm

ONT

FCO

21h 05m1 stop

$676Multiple Airlines

Thu, Apr 23 - Mon, May 4

1:35 pm - 10:53 pm

FCO

ONT

18h 18m2 stops

5:05 am - 7:55 am

ONT

FCO

17h 50m2 stops

$699United Airlines

Fri, Jan 16 - Thu, Jan 22

1:35 pm - 10:53 pm

FCO

ONT

18h 18m2 stops

1:53 pm - 5:55 pm

ONT

FCO

19h 02m2 stops

$703United Airlines

Fri, Feb 6 - Sun, Feb 8

American Airlines flights from Rome to Ontario

Our best American Airlines deals on Rome to Ontario flight tickets

American Airlines

Jan 19

FCO8:20 pmRome Fiumicino

22h 48m

2 stops

ONT10:08 amOntario

Jan 25

ONT3:09 pmOntario

21h 46m

2 stops

FCO9:55 pmRome Fiumicino

$620

Find similar

American Airlines

Apr 16

FCO11:05 amRome Fiumicino

30h 26m

2 stops

ONT8:31 amOntario

Apr 20

ONT3:05 pmOntario

19h 10m

2 stops

FCO7:15 pmRome Fiumicino

$650

Find similar

American Airlines

May 1

FCO1:25 pmRome Fiumicino

17h 31m

1 stop

ONT9:56 pmOntario

May 9

ONT12:55 pmOntario

14h 10m

1 stop

FCO12:05 pmRome Fiumicino

$866

Find similar

United Airlines flights from Rome to Ontario

Our best United Airlines deals on Rome to Ontario flight tickets

United Airlines

Jan 16

FCO1:35 pmRome Fiumicino

18h 18m

2 stops

ONT10:53 pmOntario

Feb 20

ONT5:00 amOntario

17h 45m

2 stops

FCO7:45 amRome Fiumicino

$699

Find similar

United Airlines

Feb 6

FCO1:35 pmRome Fiumicino

18h 18m

2 stops

ONT10:53 pmOntario

Feb 8

ONT1:53 pmOntario

19h 02m

2 stops

FCO5:55 pmRome Fiumicino

$703

Find similar

United Airlines

Jan 30

FCO1:35 pmRome Fiumicino

18h 18m

2 stops

ONT10:53 pmOntario

Feb 8

ONT1:53 pmOntario

19h 02m

2 stops

FCO5:55 pmRome Fiumicino

$704

Find similar

Fly from

Fly to

Route

Depart

Return

Price

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Mon 1/19

8:20 pm-10:08 am

2 stops22h 48m

Ontario

Sun 1/25

3:09 pm-9:55 pm

2 stops21h 46m

$620

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 1/16

8:00 pm-6:45 pm

2 stops31h 45m

Ontario

Fri 1/30

10:58 am-4:55 pm

2 stops20h 57m

$623

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 3/13

11:35 am-10:30 pm

1 stop18h 55m

Ontario

Sun 3/22

10:56 am-10:35 am

1 stop15h 39m

$625

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Mon 3/9

11:35 am-11:59 pm

1 stop20h 24m

Ontario

Mon 3/23

10:56 am-10:35 am

1 stop15h 39m

$633

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 4/16

11:05 am-8:31 am

2 stops30h 26m

Ontario

Mon 4/20

3:05 pm-7:15 pm

2 stops19h 10m

$650

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 4/23

7:20 am-9:56 pm

2 stops23h 36m

Ontario

Mon 5/4

12:55 pm-3:55 pm

2 stops18h 00m

$661

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 4/23

1:25 pm-11:40 pm

1 stop19h 15m

Ontario

Mon 5/4

11:01 am-12:05 pm

1 stop16h 04m

$672

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 4/23

11:05 am-9:36 pm

2 stops19h 31m

Ontario

Mon 5/4

6:00 am-12:05 pm

1 stop21h 05m

$676

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 1/16

1:35 pm-10:53 pm

2 stops18h 18m

Ontario

Thu 1/22

5:05 am-7:55 am

2 stops17h 50m

$699

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 2/6

1:35 pm-10:53 pm

2 stops18h 18m

Ontario

Sun 2/8

1:53 pm-5:55 pm

2 stops19h 02m

$703

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

Fastest flight time	17h 30m
Direct flights	None

The fastest flight from Rome to Ontario takes 17h 30m

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

Search flight deals

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 16h 21m.
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.