Which airport is the most popular layover for flights between Ontario and Rome?

Denver (DEN) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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

United Airlines and Delta are the most popular carriers operating from Ontario to Rome

Which layover airport offers the lowest fares from Ontario to Rome?

Flights via Denver (DEN) offer the lowest average round-trip price of $674.

Which layover airport has the shortest connection time from Ontario to Rome?

Denver (DEN) has the shortest average layover time for this route: 1h 14m.

Which layover airport has the shortest travel time from Ontario to Rome?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 13h 46m.

What airlines fly to Rome?

ITA Airways, Norse Atlantic Airways and United Airlines are the top three most popular airlines that fly to Rome from Ontario according to our data. ITA Airways is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Rome. Keep in mind that there are 20 different airlines that fly to Rome on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Ontario Airport to Rome refresh daily.

How many operators does momondo search for flights from Ontario Airport to Rome?

The number of operators available for flights from Ontario Airport to Rome is 3 as of February 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Rome.

What documentation or ID do you need to fly to Rome?

The necessary travel and health documents for your Rome trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$226 Cheap Flights from Ontario to Rome in 2026

Q: What is the typical price of a round-trip flight between Ontario and Rome?

Prices are currently low for flights on this route. Typical prices usually range from $697 to $883. The lowest price recently found on this route was $508.

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Find the cheapest flights from Ontario to Rome

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One-way

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6:30 am - 7:55 am

ONT

FCO

16h 25m

1 stop

9:45 am - 10:26 pm

FCO

ONT

21h 41m

1 stop

$508United Airlines

Mon, Aug 10 - Tue, Aug 25

6:49 pm - 1:20 pm

ONT

FCO

33h 31m

1 stop

11:30 am - 10:26 pm

FCO

ONT

43h 56m

2 stops

$518United Airlines

Sat, Apr 11 - Thu, Apr 23

1:27 pm - 9:15 am

ONT

FCO

34h 48m

2 stops

11:30 am - 10:26 pm

FCO

ONT

43h 56m

2 stops

$521United Airlines

Sat, Apr 11 - Thu, Apr 23

6:49 pm - 1:20 pm

ONT

FCO

33h 31m

1 stop

12:25 pm - 10:26 pm

FCO

ONT

43h 01m

2 stops

$523United Airlines

Sat, Apr 18 - Tue, Apr 28

1:27 pm - 10:00 pm

ONT

FCO

47h 33m

2 stops

11:30 am - 10:26 pm

FCO

ONT

43h 56m

2 stops

$526United Airlines

Tue, Apr 7 - Thu, Apr 23

6:49 pm - 7:55 am

ONT

FCO

28h 06m

2 stops

12:25 pm - 10:26 pm

FCO

ONT

43h 01m

2 stops

$527United Airlines

Sat, Apr 18 - Tue, Apr 28

11:05 am - 10:00 pm

ONT

FCO

25h 55m

2 stops

12:25 pm - 10:26 pm

FCO

ONT

43h 01m

2 stops

$531United Airlines

Wed, Apr 8 - Wed, Apr 15

1:34 pm - 10:20 am

ONT

FCO

35h 46m

2 stops

11:30 am - 8:36 pm

FCO

ONT

42h 06m

2 stops

$532Air Canada

Sat, Apr 18 - Fri, May 1

6:49 pm - 10:00 pm

ONT

FCO

42h 11m

2 stops

11:30 am - 10:26 pm

FCO

ONT

43h 56m

2 stops

$536United Airlines

Sat, Apr 11 - Thu, Apr 23

10:25 pm - 7:35 am

ONT

FCO

24h 10m

1 stop

9:45 am - 6:33 pm

FCO

ONT

17h 48m

1 stop

$538Delta

Sat, Apr 11 - Tue, Apr 21

Delta flights from Ontario to Rome

Our best Delta deals on Ontario to Rome flight tickets

Delta

Apr 11

ONT10:25 pmOntario

24h 10m

1 stop

FCO7:35 amRome Fiumicino

Apr 23

FCO6:30 amRome Fiumicino

26h 14m

2 stops

ONT11:44 pmOntario

$538

Delta

Apr 21

ONT11:53 amOntario

22h 12m

2 stops

FCO7:05 pmRome Fiumicino

Apr 29

FCO9:45 amRome Fiumicino

17h 48m

1 stop

ONT6:33 pmOntario

$542

Delta

Apr 21

ONT2:20 pmOntario

18h 10m

2 stops

FCO5:30 pmRome Fiumicino

Apr 28

FCO10:10 amRome Fiumicino

34h 03m

2 stops

ONT11:13 amOntario

$547

Lufthansa flights from Ontario to Rome

Our best Lufthansa deals on Ontario to Rome flight tickets

Lufthansa

Apr 5

ONT11:05 amOntario

17h 15m

1 stop

FCO1:20 pmRome Fiumicino

Apr 21

FCO2:20 pmRome Fiumicino

15h 16m

1 stop

ONT8:36 pmOntario

$544

Lufthansa

Apr 5

ONT1:27 pmOntario

14h 53m

1 stop

FCO1:20 pmRome Fiumicino

Apr 21

FCO2:20 pmRome Fiumicino

15h 16m

1 stop

ONT8:36 pmOntario

$548

Lufthansa

Apr 15

ONT1:34 pmOntario

23h 26m

2 stops

FCO10:00 pmRome Fiumicino

Apr 23

FCO3:40 pmRome Fiumicino

16h 05m

1 stop

ONT10:45 pmOntario

$565

Fly from

Fly to

Route

Depart

Return

Price

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 8/10

6:30 am-7:55 am

1 stop16h 25m

Rome Fiumicino

Tue 8/25

9:45 am-10:26 pm

1 stop21h 41m

$508

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 4/11

6:49 pm-1:20 pm

1 stop33h 31m

Rome Fiumicino

Thu 4/23

11:30 am-10:26 pm

2 stops43h 56m

$518

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 4/11

1:27 pm-9:15 am

2 stops34h 48m

Rome Fiumicino

Thu 4/23

11:30 am-10:26 pm

2 stops43h 56m

$521

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 4/18

6:49 pm-1:20 pm

1 stop33h 31m

Rome Fiumicino

Tue 4/28

12:25 pm-10:26 pm

2 stops43h 01m

$523

OntarioRome

ONT - FCO

ONTFCO

Ontario

Tue 4/7

1:27 pm-10:00 pm

2 stops47h 33m

Rome Fiumicino

Thu 4/23

11:30 am-10:26 pm

2 stops43h 56m

$526

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 4/18

6:49 pm-7:55 am

2 stops28h 06m

Rome Fiumicino

Tue 4/28

12:25 pm-10:26 pm

2 stops43h 01m

$527

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 4/8

11:05 am-10:00 pm

2 stops25h 55m

Rome Fiumicino

Wed 4/15

12:25 pm-10:26 pm

2 stops43h 01m

$531

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 4/18

1:34 pm-10:20 am

2 stops35h 46m

Rome Fiumicino

Fri 5/1

11:30 am-8:36 pm

2 stops42h 06m

$532

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 4/11

6:49 pm-10:00 pm

2 stops42h 11m

Rome Fiumicino

Thu 4/23

11:30 am-10:26 pm

2 stops43h 56m

$536

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 4/11

10:25 pm-7:35 am

1 stop24h 10m

Rome Fiumicino

Tue 4/21

9:45 am-6:33 pm

1 stop17h 48m

$538

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 Ontario to Rome

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

Layovers

What is the typical price of a round-trip flight between Ontario and Rome?

What is the cheapest month to fly to Rome?

The cheapest month to fly to Rome from Ontario is in August. Flight prices, which tend to average around $570, are often lower during this time because this is during the off-season. If you aren’t able to travel to Rome during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $604.

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

The cheapest day to depart on your flight to Rome is on a Monday when prices can be found for as low as $714. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Rome on Sunday is $828.

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

At noon is the cheapest time of day to fly from Ontario to Rome when you can find flight prices for as low as $599. Flying to Rome at noon is an ideal time because this is during off-peak travel hours. Flights to Rome are more costly in the afternoon, with an average ticket price of $815. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Ontario to Rome flights?

You could potentially save up to 35% on your flight if you consider stops on a Ontario to Rome flight.

When to book flights from Ontario to Rome

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

Estimated round-trip price

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

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

Fastest flight time	14h 02m
Direct flights	None

The fastest flight from Ontario to Rome takes 14h 02m

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

Search flight deals

How far is Ontario to Rome by plane?
There are 6306.5 mi between Ontario and Rome. A reasonable flight in good conditions will take 14h 02m.
When did momondo last update prices for flights from Ontario Airport to Rome?
Prices for flights from Ontario Airport to Rome refresh daily.
How many operators does momondo search for flights from Ontario Airport to Rome?
The number of operators available for flights from Ontario Airport to Rome is 3 as of February 2026.
How old do you have to be to fly from Ontario Airport to Rome?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Rome.
What documentation or ID do you need to fly to Rome?
The necessary travel and health documents for your Rome trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Rome?
Based on momondo bookings for flights between Ontario and Rome, the leading airline is United Airlines, making up 55% of the total bookings. Other popular airlines include British Airways with 30% and Delta with 15%.

Best airlines flying from Ontario to Rome

Compare and see reviews for airlines that fly from Ontario to Rome with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $475	Free Cancellation	Rating 7.9 8,238 reviews	Search Delta flights
British Airways	PriceFrom $487	Free Cancellation	Rating 6.7 7,765 reviews	Search British Airways flights
United Airlines	PriceFrom $508	Free Cancellation	Rating 7.4 9,345 reviews	Search United Airlines flights

Fiumicino

Civitavecchia

Cassino

Ponza

Gaeta

Montepulciano

Pienza

Tivoli

Orvieto

Sperlonga

Chianciano Terme

Terracina

Saturnia

Santa Marinella

Ciampino

Sabaudia

Grosseto

Ascoli Piceno

Cortona

Orbetello

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Rome. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Rome from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Rome from Ontario.

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

If you are simply researching potential flights to Rome, momondo offers a useful price alert feature which will track prices for flights to Rome from Ontario and alert you when they change.

An easier way to manage your Rome trip

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Fly into one of these airports located in Rome

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Cheap flights from Ontario to Rome from $226

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Rome departing on 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Ontario to Rome

Our best Delta deals on Ontario to Rome flight tickets

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How to get the cheapest flight ticket from Ontario to Rome

What is the typical price of a round-trip flight between Ontario and Rome?

What is the cheapest month to fly to Rome?

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

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

Can stopping save me money on Ontario to Rome flights?

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

What airlines fly to Rome?

Which airport is the most popular layover for flights between Ontario and Rome?

Which layover airport offers the lowest fares from Ontario to Rome?

Which layover airport has the shortest travel time from Ontario to Rome?

Which layover airport has the shortest connection time from Ontario to Rome?

When to book flights from Ontario to Rome

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

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

Fastest flight time

Direct flights

Best airlines flying from Ontario to Rome

Compare and see reviews for airlines that fly from Ontario to Rome with momondo

Traveling to a place near Rome?

Why use momondo?

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

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

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

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

An easier way to manage your Rome trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Italy

Fly into one of these airports located in Rome

Airports listed have a maximum distance of 14.7 mi from Rome

Fly your favorite airline to Rome

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Rome

List of cabin classes available on flights landing in Rome. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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