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 Fiumicino Airport according to our data. ITA Airways is the first choice among our users, with 42% 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.

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

British Airways is the most popular carrier operating from Rome Fiumicino to Ontario

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

Prices for flights from Rome Fiumicino Airport to Ontario Airport are refreshed on a daily basis.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rome Fiumicino Airport to Ontario Airport.

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

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$433 Cheap Flights from Rome Fiumicino Airport to Ontario in 2025/26

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Find the cheapest flights from Rome Fiumicino Airport to Los Angeles

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:10 pm - 1:54 pm

FCO

ONT

33h 44m2 stops

7:00 am - 2:55 pm

ONT

FCO

23h 55m2 stops

$629American Airlines

Thu, Mar 5 - Mon, Mar 9

1:10 pm - 4:26 pm

FCO

ONT

36h 16m2 stops

2:47 pm - 7:35 pm

ONT

FCO

20h 48m2 stops

$630American Airlines

Thu, Mar 5 - Mon, Mar 9

12:00 pm - 2:18 pm

FCO

ONT

35h 18m2 stops

10:58 am - 2:55 pm

ONT

FCO

18h 57m2 stops

$639Multiple Airlines

Fri, Jan 23 - Fri, Feb 6

7:00 pm - 5:22 pm

FCO

ONT

31h 22m2 stops

3:09 pm - 5:35 pm

ONT

FCO

17h 26m2 stops

$641British Airways

Sat, Jan 31 - Sat, Feb 7

11:35 am - 10:30 pm

FCO

ONT

18h 55m1 stop

10:56 am - 10:35 am

ONT

FCO

15h 39m1 stop

$643Multiple Airlines

Thu, Mar 12 - Wed, Mar 18

6:10 am - 9:05 pm

FCO

ONT

23h 55m2 stops

10:30 pm - 10:30 am

ONT

FCO

27h 00m1 stop

$647Delta

Sat, Jan 31 - Sat, Feb 7

11:10 am - 10:49 pm

FCO

ONT

20h 39m2 stops

6:00 am - 10:35 am

ONT

FCO

20h 35m1 stop

$651American Airlines

Thu, Mar 5 - Mon, Mar 9

11:35 am - 10:48 pm

FCO

ONT

19h 13m1 stop

7:00 am - 12:05 pm

ONT

FCO

20h 05m1 stop

$785Iberia

Tue, Mar 24 - Mon, Mar 30

7:05 am - 10:53 pm

FCO

ONT

24h 48m2 stops

5:05 am - 7:55 am

ONT

FCO

17h 50m2 stops

$790United Airlines

Thu, Jan 15 - Sat, Jan 24

7:05 am - 5:43 pm

FCO

ONT

19h 38m2 stops

5:05 am - 9:25 am

ONT

FCO

19h 20m2 stops

$794United Airlines

Wed, Jan 14 - Fri, Jan 23

American Airlines flights from Rome Fiumicino Airport to Ontario

Our best American Airlines deals on Rome Fiumicino Airport to Ontario flight tickets

American Airlines

Mar 5

FCO1:10 pmRome Fiumicino

33h 44m

2 stops

ONT1:54 pmOntario

Mar 9

ONT7:00 amOntario

23h 55m

2 stops

FCO2:55 pmRome Fiumicino

$629

Find similar

American Airlines

Mar 5

FCO1:10 pmRome Fiumicino

36h 16m

2 stops

ONT4:26 pmOntario

Mar 9

ONT2:47 pmOntario

20h 48m

2 stops

FCO7:35 pmRome Fiumicino

$630

Find similar

American Airlines

Mar 5

FCO11:10 amRome Fiumicino

20h 39m

2 stops

ONT10:49 pmOntario

Mar 9

ONT6:00 amOntario

20h 35m

1 stop

FCO10:35 amRome Fiumicino

$651

Find similar

United Airlines flights from Rome Fiumicino Airport to Ontario

Our best United Airlines deals on Rome Fiumicino Airport to Ontario flight tickets

United Airlines

Jan 15

FCO7:05 amRome Fiumicino

24h 48m

2 stops

ONT10:53 pmOntario

Jan 24

ONT5:05 amOntario

17h 50m

2 stops

FCO7:55 amRome Fiumicino

$790

Find similar

United Airlines

Jan 14

FCO7:05 amRome Fiumicino

19h 38m

2 stops

ONT5:43 pmOntario

Jan 23

ONT5:05 amOntario

19h 20m

2 stops

FCO9:25 amRome Fiumicino

$794

Find similar

United Airlines

Jan 16

FCO7:00 amRome Fiumicino

19h 43m

2 stops

ONT5:43 pmOntario

Jan 24

ONT5:05 amOntario

17h 50m

2 stops

FCO7:55 amRome Fiumicino

$803

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Rome Fiumicino Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 3/5

1:10 pm-1:54 pm

2 stops33h 44m

Ontario

Mon 3/9

7:00 am-2:55 pm

2 stops23h 55m

$629

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 3/5

1:10 pm-4:26 pm

2 stops36h 16m

Ontario

Mon 3/9

2:47 pm-7:35 pm

2 stops20h 48m

$630

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 1/23

12:00 pm-2:18 pm

2 stops35h 18m

Ontario

Fri 2/6

10:58 am-2:55 pm

2 stops18h 57m

$639

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Sat 1/31

7:00 pm-5:22 pm

2 stops31h 22m

Ontario

Sat 2/7

3:09 pm-5:35 pm

2 stops17h 26m

$641

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 3/12

11:35 am-10:30 pm

1 stop18h 55m

Ontario

Wed 3/18

10:56 am-10:35 am

1 stop15h 39m

$643

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Sat 1/31

6:10 am-9:05 pm

2 stops23h 55m

Ontario

Sat 2/7

10:30 pm-10:30 am

1 stop27h 00m

$647

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 3/5

11:10 am-10:49 pm

2 stops20h 39m

Ontario

Mon 3/9

6:00 am-10:35 am

1 stop20h 35m

$651

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Tue 3/24

11:35 am-10:48 pm

1 stop19h 13m

Ontario

Mon 3/30

7:00 am-12:05 pm

1 stop20h 05m

$785

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 1/15

7:05 am-10:53 pm

2 stops24h 48m

Ontario

Sat 1/24

5:05 am-7:55 am

2 stops17h 50m

$790

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Wed 1/14

7:05 am-5:43 pm

2 stops19h 38m

Ontario

Fri 1/23

5:05 am-9:25 am

2 stops19h 20m

$794

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 Fiumicino Airport 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 Fiumicino Airport 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 Fiumicino Airport 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 Fiumicino Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Rome Fiumicino Airport to Ontario

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

Estimated round-trip price

Cheap Rome Fiumicino Airport to Ontario (FCO to ONT) flight deals and tips

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

Fastest flight time	16h 46m
Direct flights	None

The fastest flight from Rome Fiumicino Airport to Ontario takes 16h 46m

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

Search flight deals

How far is Rome Fiumicino to Ontario by plane?
There are 6304.8 mi between Rome Fiumicino and Ontario. By plane, this route typically takes 16h 46m.
When did momondo last update prices for flights from Rome Fiumicino Airport to Ontario Airport?
Prices for flights from Rome Fiumicino Airport to Ontario Airport are refreshed on a daily basis.
How old do you have to be to fly from Rome Fiumicino Airport to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rome Fiumicino Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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?

Yes. momondo enables you to select and highlight flights to Ontario from Rome with this policy.

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

momondo provides multiple filters to help you find the best flight to Ontario from Rome. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Rome to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.