How long is the flight from Ontario to Rome?

Departing from Ontario to Rome will take you 13h 26m. Ontario and Rome are separated by a distance of 6303 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Ontario to Rome round-trip?

Our cheapest airline available from Ontario to Rome is Delta. Our recent data shows that you can find tickets from as low as $479 on this airline. An additional option worth looking into is United Airlines, starting at $508. Delta is 49% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in Rome ranges from 0.6 - 4.4 inches per month. November is typically the wettest month, when rainfall can reach 4.4 in. June is typically the driest time to visit Rome when rainfall is around 0.6 in.

If weather is an important factor for your trip to Rome, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

What is the cheapest time of day to fly from ONT to ROM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Rome as you normally would.

Most accurate provider : When it comes to deals on Ontario-Rome flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Rome flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Rome flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Ontario-Rome flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Rome flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Ontario to Rome?

Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Rome. 2 airlines have flights from Ontario to Rome on a regular basis. Booking flights from Ontario to Rome should not be difficult; the airport handles an average of 0 outbound flights to Rome per day.

Can I find deals for flights from Ontario to Rome that include hotel bookings?

Yes. In addition to deals on Ontario to Rome flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Rome?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Rome.

Can I find deals for business class flights from Ontario to Rome?

Yes. Cheapflights offers flight deals from Ontario to Rome by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$343+ Cheap Flights from Ontario to Rome

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Cheap flight deals from Ontario to Rome

Cheapest

Best

Last-minute

One-way

Cheapest flights from Ontario to Rome
Explore the most affordable flight options available from Ontario to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.

Wed 11/251:29 pm -

1 stop13h 26m

Wed 12/92:10 pm -

2 stops28h 28m

Deal found 8/23

$746

Tue 11/1712:42 pm -

2 stops17h 38m

Tue 11/241:10 pm -

1 stop18h 26m

Deal found 8/23

$752

Wed 11/257:05 am -

1 stop16h 10m

Wed 12/910:25 am -

1 stop19h 34m

Deal found 8/26

$754

Mon 12/286:00 am -

2 stops32h 10m

Mon 1/112:10 pm -

2 stops41h 56m

Deal found 8/26

$760

Tue 11/247:00 am -

1 stop15h 45m

Tue 12/810:30 am -

2 stops18h 50m

Deal found 8/25

$763

Sun 11/85:00 am -

2 stops18h 55m

Tue 11/1711:15 am -

2 stops42h 36m

Deal found 8/24

$766

Mon 8/247:59 pm -

1 stop32h 16m

Tue 9/83:15 pm -

1 stop32h 01m

Deal found 8/23

$769

Mon 11/95:00 am -

2 stops18h 55m

Tue 11/1711:15 am -

2 stops42h 36m

Deal found 8/24

$771

Sun 11/87:00 am -

1 stop15h 45m

Thu 11/197:05 am -

2 stops22h 10m

Deal found 8/24

$776

Best flights from Ontario to Rome
Discover carefully curated flight deals from Ontario to Rome that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.

Mon 2/17:00 am -

1 stop19h 20m

Sun 2/216:10 am -

2 stops19h 02m

Deal found 8/26

$818

Sun 9/61:56 pm -

1 stop14h 44m

Mon 9/149:45 am -

1 stop22h 14m

Deal found 8/25

$908

Sun 10/1810:25 am -

2 stops20h 25m

Tue 11/38:30 pm -

2 stops31h 12m

Deal found 8/23

$992

Sun 10/111:52 pm -

1 stop14h 48m

Sat 10/243:40 pm -

1 stop16h 11m

Deal found 8/22

$908

Thu 9/179:52 am -

2 stops19h 33m

Mon 9/219:00 am -

2 stops23h 47m

Deal found 8/22

$982

Wed 9/231:56 pm -

1 stop14h 44m

Sat 10/103:40 pm -

1 stop16h 11m

Deal found 8/22

$908

Fri 10/92:22 pm -

1 stop36h 43m

Sun 11/17:50 am -

2 stops24h 56m

Deal found 8/25

$1,161

Thu 10/811:56 am -

2 stops20h 34m

Sun 10/186:30 am -

2 stops19h 42m

Deal found 8/24

$1,090

Thu 10/87:00 am -

2 stops30h 00m

Sun 10/1810:50 am -

2 stops43h 08m

Deal found 8/25

$1,089

Tue 9/298:03 am -

1 stop20h 37m

Sun 10/113:40 pm -

1 stop16h 11m

Deal found 8/25

$1,128

Last-minute flights from Ontario to Rome
Discover last-minute flight deals from Ontario to Rome. Data last updated August 26, 2026 and is based on user searches.

Wed 8/261:18 pm -

1 stop14h 02m

Sun 8/302:20 pm -

1 stop15h 33m

Deal found 8/26

$819

Fri 8/281:18 pm -

2 stops33h 37m

Thu 9/107:10 am -

2 stops20h 01m

Deal found 8/26

$850

Fri 8/281:18 pm -

1 stop14h 02m

Fri 9/116:50 am -

2 stops22h 11m

Deal found 8/23

$853

Mon 8/316:20 am -

1 stop18h 50m

Wed 9/99:45 am -

1 stop19h 39m

Deal found 8/26

$818

Tue 9/81:56 pm -

1 stop14h 44m

Tue 9/226:50 am -

2 stops22h 11m

Deal found 8/24

$846

Tue 9/151:56 pm -

1 stop14h 44m

Tue 9/298:00 am -

2 stops18h 41m

Deal found 8/24

$847

Tue 9/156:08 am -

1 stop22h 32m

Tue 9/296:50 am -

3 stops22h 41m

Deal found 8/25

$857

Sun 9/207:13 pm -

1 stop33h 27m

Wed 9/3011:30 am -

2 stops57h 48m

Deal found 8/25

$849

Mon 9/219:01 am -

1 stop19h 39m

Wed 10/71:20 pm -

2 stops18h 31m

Deal found 8/23

$842

Wed 9/231:18 pm -

1 stop14h 02m

Wed 10/72:20 pm -

1 stop15h 38m

Deal found 8/22

$851

One-way flights from Ontario to Rome
Search for one-way flight options from Ontario to Rome. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.

Mon 1/257:00 am -

2 stops22h 55m

Deal found 8/26

$343

Tue 12/17:00 am -

1 stop16h 15m

Deal found 8/24

$346

Mon 1/256:53 pm -

3 stops53h 02m

Deal found 8/25

$350

Sat 2/201:00 pm -

2 stops34h 55m

Deal found 8/23

$352

Sun 2/1411:20 am -

2 stops21h 40m

Deal found 8/25

$354

Tue 11/245:00 am -

2 stops20h 55m

Deal found 8/26

$355

Sat 10/316:25 am -

3 stops32h 35m

Deal found 8/22

$365

Mon 10/55:44 pm -

3 stops42h 11m

Deal found 8/22

$367

Sun 1/175:00 am -

3 stops42h 30m

Deal found 8/22

$368

Sat 11/2811:59 pm -

1 stop25h 46m

Deal found 8/24

$381

Thu 2/1812:00 pm -

1 stop14h 20m

Deal found 8/23

$393

Thu 12/37:05 am -

1 stop16h 10m

Deal found 8/25

$396

Find flight deals from Ontario to Rome

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$746 (Kissandfly.com)
One-way from	$343 (American Airlines)
Popular in	June
Cheapest in	January
Average price	$722

Provider with most accurate pricing for Ontario-Rome (ROM) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ontario-Rome (ROM) flights.

Search Deals

From Ontario to Rome (ROM)

Search Deals

One-way flight from Ontario to Rome (ROM)

Search Deals

Highest demand for flights based on searches. 22% potential increase in price ($281 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($68 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Mon 2/1

7:00 am-11:20 am

1 stop19h 20m

Rome Fiumicino

Sun 2/21

6:10 am-4:12 pm

2 stops19h 02m

$818

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Sun 9/6

1:56 pm-1:40 pm

1 stop14h 44m

Rome Fiumicino

Mon 9/14

9:45 am-10:59 pm

1 stop22h 14m

$908

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Sun 10/11

1:52 pm-1:40 pm

1 stop14h 48m

Rome Fiumicino

Sat 10/24

3:40 pm-10:51 pm

1 stop16h 11m

$908

Quickest round-trip

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Wed 9/23

1:56 pm-1:40 pm

1 stop14h 44m

Rome Fiumicino

Sat 10/10

3:40 pm-10:51 pm

1 stop16h 11m

$908

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Thu 9/17

9:52 am-2:25 pm

2 stops19h 33m

Rome Fiumicino

Mon 9/21

9:00 am-11:47 pm

2 stops23h 47m

$982

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Sun 10/18

10:25 am-3:50 pm

2 stops20h 25m

Rome Fiumicino

Tue 11/3

8:30 pm-6:42 pm

2 stops31h 12m

$992

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Thu 10/8

7:00 am-10:00 pm

2 stops30h 00m

Rome Fiumicino

Sun 10/18

10:50 am-8:58 pm

2 stops43h 08m

$1,089

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Thu 10/8

11:56 am-5:30 pm

2 stops20h 34m

Rome Fiumicino

Sun 10/18

6:30 am-5:12 pm

2 stops19h 42m

$1,090

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Tue 9/29

8:03 am-1:40 pm

1 stop20h 37m

Rome Fiumicino

Sun 10/11

3:40 pm-10:51 pm

1 stop16h 11m

$1,128

OntarioRome

ONT Ontario - FCO Rome Fiumicino

ONTFCO

Ontario

Fri 10/9

2:22 pm-12:05 pm

1 stop36h 43m

Rome Fiumicino

Sun 11/1

7:50 am-12:46 am

2 stops24h 56m

$1,161

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/26

Showing 1-10 of 20 resultsSorted by cheapest first

Compare providers for flights from Ontario to Rome

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Rome in August.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Ontario-Rome flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Rome flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Rome flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Ontario-Rome flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Rome flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Rome

Have a flexible travel schedule? Discover the best time to fly to Rome from Ontario with our price prediction graph.

ONT-ROM

ONT-FCO

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Rome

ONT-ROM

ONT-FCO

How much does it cost to fly round-trip from Ontario to Rome?

Airfare is typical for this route at the moment.

Ontario to Rome flights typically cost between $594 and $752 in November.
The cheapest round-trip price found within the last 5 days was $746 on Lufthansa (Nov 25-Dec 9).

Reviews of airlines servicing Rome

Get a feel of what it's like to fly with United Airlines and British Airways from Ontario to Rome by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,123 reviews

Reviews

1 / 20

4.0

Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

United Airlines

7.4

Good

10,123 reviews

United Airlines

7.4

Good

10,123 reviews

Reviews

1 / 20

4.0

Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

British Airways

6.7

Okay

8,194 reviews

United Airlines

7.4

Good

10,123 reviews

Reviews

1 / 20

4.0

Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

What airport do you fly from for flights from Ontario to Rome?
Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Rome. 2 airlines have flights from Ontario to Rome on a regular basis. Booking flights from Ontario to Rome should not be difficult; the airport handles an average of 0 outbound flights to Rome per day.
How long is the flight from Ontario to Rome?
Departing from Ontario to Rome will take you 13h 26m. Ontario and Rome are separated by a distance of 6303 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Ontario to Rome round-trip?
Our cheapest airline available from Ontario to Rome is Delta. Our recent data shows that you can find tickets from as low as $479 on this airline. An additional option worth looking into is United Airlines, starting at $508. Delta is 49% cheaper than the average price of flights available within the next 90 days to this destination.
Can I find deals for flights from Ontario to Rome that include hotel bookings?
Yes. In addition to deals on Ontario to Rome flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Rome?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Rome.
Can I find deals for business class flights from Ontario to Rome?
Yes. Cheapflights offers flight deals from Ontario to Rome by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Fiumicino

Civitavecchia

Montepulciano

Santa Marinella

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Alternative routes for Ontario to Rome

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Top 2 airlines flying from Ontario to Rome

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$479	Average$859	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$508	Average$727	FlexibilityNo cancel fee	On-time69%

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$343+ Cheap flights from Ontario (ONT) to Rome (ROM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Rome with Cheapflights

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Cheap flight deals from Ontario to Rome

Cheapest flights from Ontario to RomeExplore the most affordable flight options available from Ontario to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.

Explore the most affordable flight options available from Ontario to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.

Best flights from Ontario to RomeDiscover carefully curated flight deals from Ontario to Rome that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.

Discover carefully curated flight deals from Ontario to Rome that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.

Last-minute flights from Ontario to RomeDiscover last-minute flight deals from Ontario to Rome. Data last updated August 26, 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Rome. Data last updated August 26, 2026 and is based on user searches.

One-way flights from Ontario to RomeSearch for one-way flight options from Ontario to Rome. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.

Search for one-way flight options from Ontario to Rome. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.

Find flight deals from Ontario to Rome

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Compare providers for flights from Ontario to Rome

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Rome in August.

Best time to book a flight from Ontario to Rome

Have a flexible travel schedule? Discover the best time to fly to Rome from Ontario with our price prediction graph.

Cheapflights Insights

How much does it cost to fly round-trip from Ontario to Rome?

Airfare is typical for this route at the moment.

Ontario to Rome flights typically cost between $594 and $752 in November.The cheapest round-trip price found within the last 5 days was $746 on Lufthansa (Nov 25-Dec 9).

Reviews of airlines servicing Rome

Get insights into the airlines that provide service to Rome. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Rome. Reviews last updated August 26, 2026.

Get a feel of what it's like to fly with United Airlines and British Airways from Ontario to Rome by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Ontario to Rome?

How long is the flight from Ontario to Rome?

What are the cheapest airlines flying from Ontario to Rome round-trip?

Can I find deals for flights from Ontario to Rome that include hotel bookings?

How can I find direct flights from Ontario to Rome?

Can I find deals for business class flights from Ontario to Rome?

Traveling to a place near Rome?

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Alternative routes for Ontario to Rome

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Rome by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Ontario to Rome by cabin class

Find flights from Ontario to Rome, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and Rome flights

Browse other Ontario and Rome flight options. Last updated on August 26, 2026.

Other flights from Ontario

Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on August 26, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Other flights to Rome

Explore flights to Rome departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 26, 2026.

Top 2 airlines flying from Ontario to Rome

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Cheapest flights from Ontario to Rome
Explore the most affordable flight options available from Ontario to Rome. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.

Best flights from Ontario to Rome
Discover carefully curated flight deals from Ontario to Rome that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.

Last-minute flights from Ontario to Rome
Discover last-minute flight deals from Ontario to Rome. Data last updated August 26, 2026 and is based on user searches.

One-way flights from Ontario to Rome
Search for one-way flight options from Ontario to Rome. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.

Ontario to Rome flights typically cost between $594 and $752 in November.
The cheapest round-trip price found within the last 5 days was $746 on Lufthansa (Nov 25-Dec 9).