Rome

$368+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ROM
May 6 — May 131
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1. Tell us where you want to go

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Cheap flight deals from Ontario to Rome

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Rome (ROM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$505
(United Airlines)

One-way from

$368
(Gurufare)

Popular in

June

Cheapest in

December

Average price

$1,176
Provider with most accurate pricing for Ontario-Rome (ROM) flight deals.
Provider most trusted by Cheapflights users for Ontario-Rome (ROM) flights.
From Ontario to Rome (ROM)
One-way flight from Ontario to Rome (ROM)
Highest demand for flights based on searches. 24% potential increase in price ($291 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
Average for round-trip flights in May 2025

Find flight deals from Ontario to Rome

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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/131:35 pmONT - FCO
1 stop14h 45mUnited Airlines
Thu 11/139:45 amFCO - ONT
1 stop21h 41mUnited Airlines
Deal found 4/30$505
This Iberia deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/307:00 amONT - FCO
1 stop16h 05mIberia
Wed 5/710:00 amFCO - ONT
1 stop22h 43mIberia
Deal found 4/29$515
This Billigflug deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:00 amONT - FCO
1 stop18h 30mAir France
Wed 12/1012:45 pmFCO - ONT
1 stop18h 56mAir France
Deal found 4/30$527
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1810:59 pmONT - FCO
1 stop23h 36mDelta
Wed 11/1212:45 pmFCO - ONT
1 stop18h 56mDelta
Deal found 4/29$534
This lastminute.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2510:59 pmONT - FCO
1 stop26h 31mKLM
Tue 12/912:45 pmFCO - ONT
1 stop18h 56mKLM
Deal found 4/29$576
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/176:17 amONT - FCO
2 stops18h 33mAmerican Airlines
Mon 9/110:00 amFCO - ONT
1 stop17h 25mAmerican Airlines
Deal found 4/30$579
This British Airways deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:00 amONT - FCO
1 stop17h 05mBritish Airways
Mon 5/1210:00 amFCO - ONT
1 stop17h 36mBritish Airways
Deal found 4/30$635
This StudentUniverse deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:59 pmONT - FCO
2 stops27h 11mMultiple Airlines
Sat 11/158:20 pmFCO - ONT
2 stops26h 22mMultiple Airlines
Deal found 4/28$642
This Air Canada deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/306:28 pmONT - FCO
2 stops53h 47mAir Canada
Tue 7/2211:30 amFCO - ONT
2 stops38h 55mAir Canada
Deal found 4/29$828

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Rome that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Ontario to Rome that are best for you.

Fly from

Ontario

Fly to

Rome

Route

Depart

Return

Price

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 10/13

1:35 pm-1:20 pm

1 stop14h 45m

Rome Fiumicino

Thu 11/13

9:45 am-10:26 pm

1 stop21h 41m

$505

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 5/12

6:15 am-8:05 am

1 stop16h 50m

Rome Fiumicino

Thu 5/22

10:00 am-6:36 pm

1 stop17h 36m

$515

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 10/18

10:59 pm-7:35 am

1 stop23h 36m

Rome Fiumicino

Wed 11/12

12:45 pm-10:41 pm

1 stop18h 56m

$534

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sun 8/17

8:37 am-8:05 am

1 stop14h 28m

Rome Fiumicino

Mon 9/1

10:00 am-9:44 pm

1 stop20h 44m

$575

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sun 8/17

6:17 am-9:50 am

2 stops18h 33m

Rome Fiumicino

Mon 9/1

10:00 am-6:25 pm

1 stop17h 25m

$579

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 8/9

2:59 pm-6:15 pm

2 stops18h 16m

Rome Fiumicino

Tue 8/19

7:15 am-9:44 pm

2 stops23h 29m

$665

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 5/10

7:05 am-7:35 am

1 stop15h 30m

Rome Fiumicino

Fri 5/23

9:45 am-7:33 pm

1 stop18h 48m

$667

OntarioRome

ONT - FCO

ONTFCO

Ontario

Mon 6/30

6:28 pm-9:15 am

2 stops53h 47m

Rome Fiumicino

Tue 7/22

11:30 am-5:25 pm

2 stops38h 55m

$828

OntarioRome

ONT - FCO

ONTFCO

Ontario

Sat 8/16

7:00 am-11:05 am

1 stop19h 05m

Rome Fiumicino

Fri 8/29

11:35 am-10:29 pm

1 stop19h 54m

$924

OntarioRome

ONT - FCO

ONTFCO

Ontario

Wed 10/15

6:38 am-8:05 am

1 stop16h 27m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 18 results
1
2

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Ontario-Rome flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.
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

What is the cheapest month to book a flight from Ontario to Rome?

Currently, January is the cheapest month in which you can book a flight from Ontario to Rome (average of $644). Flying from Ontario to Rome in June is currently the most expensive (average of $1,178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Ontario to Rome. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

It’s optimal to fly from Ontario to Rome in the evening. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight in the morning.

Rainfall in Rome by month

Plan your trip to Rome by taking into account the average rainfall totals by month.

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.

Temperature in Rome by month

Plan your trip to Rome by taking into account the average temperature totals by month.

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).

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 May 1, 2025.
To help decide which airline to fly from Ontario to Rome, see what other customers have to say about Delta, KLM and Air France. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Rome. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • 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. 5 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.

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

    Our cheapest airline available from Ontario to Rome is United Airlines. Our recent data shows that you can find tickets from as low as $505 on this airline. Additional options worth looking into are British Airways and Delta, starting at $515 and $534 round-trip. United Airlines is 44% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Ontario to Rome one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as $368. Users have also found prices from $379 and $418 on Iberia and Delta, respectively.

  • 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.

  • What is the cheapest month to book a flight from Ontario to Rome?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Rome (average of $644). Flying from Ontario to Rome in June is currently the most expensive (average of $1,178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Fiumicino
Gaeta
Ciampino
Montepulciano
Ponza

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Top 5 airlines flying from Ontario to Rome

Discover the top 5 airlines that operate flights from Ontario to Rome. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$541Average$1,126FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$556Average$1,105FlexibilityNo cancel feeOn-time69%
KLMCheapest$591Average$1,064FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$859Average$1,288FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$924Average$1,118FlexibilityNo cancel feeOn-time70%

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