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 $616 on this airline. Additional options worth looking into are Delta and British Airways, starting at $631 and $633 round-trip. United Airlines is 31% 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 United Airlines. According to our data, you can fly for as low as $518. Users have also found prices from $521 and $531 on KLM and Air Canada, respectively.

What is the cheapest day to fly from Ontario to Rome?

Travelers seeking maximum savings on their Ontario to Rome flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Ontario to Rome?

Before booking your flight from Ontario to Rome check out the most popular airlines for this route: American Airlines, British Airways or Delta.

What is the cheapest day to fly round-trip from Ontario to Rome?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 37% when planning your travel around this day of the week.

How far in advance should I book a flight from Ontario to Rome?

To save up to 26% on this flight, we recommend booking at least 50 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Rome from $820 1-2 weeks out and tickets from $1,000 for flights departing within the next 72 hours.

What is the cheapest month to fly from Ontario to Rome?

Our data shows that February tends to be the cheapest month to fly to Rome from Ontario. Users have commonly found prices around $842 for the month, but tickets can be as low as $495. Due to multiple factors, prepare for potentially higher prices in June.

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.

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.

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.

$490+ Flights from Ontario to Rome

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Find cheap flights from Ontario to Rome with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheap flight deals from Ontario to Rome

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$616 (United Airlines)
One-way from	$518 (United Airlines)
Popular in	June
Cheapest in	December
Average price	$691

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. 24% potential increase in price ($291 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 abril 15, 2025.

mar. 12/96:32 amONT - FCO

2 stops17h 28mMultiple Airlines

jue. 12/181:10 pmFCO - ONT

2 stops19h 38mMultiple Airlines

Deal found 4/14

$490

lun. 11/1010:59 pmONT - FCO

1 stop26h 31mKLM

lun. 11/2412:45 pmFCO - ONT

1 stop18h 56mKLM

Deal found 4/14

$542

mar. 12/96:02 amONT - FCO

2 stops17h 28mUnited Airlines

jue. 12/189:45 amFCO - ONT

1 stop21h 41mUnited Airlines

Deal found 4/14

$545

mié. 10/2212:00 pmONT - FCO

1 stop15h 15mAir France

mié. 11/512:45 pmFCO - ONT

1 stop18h 56mAir France

Deal found 4/15

$590

sáb. 4/2610:15 pmONT - FCO

1 stop24h 20mDelta

vie. 5/911:35 amFCO - ONT

1 stop19h 54mDelta

Deal found 4/15

$631

mar. 4/227:00 amONT - FCO

1 stop16h 05mBritish Airways

mar. 5/610:00 amFCO - ONT

1 stop17h 36mBritish Airways

Deal found 4/15

$633

mar. 4/2210:54 amONT - FCO

1 stop36h 11mIberia

mar. 5/610:00 amFCO - ONT

1 stop17h 36mIberia

Deal found 4/15

$676

sáb. 8/168:37 amONT - FCO

1 stop14h 28mAmerican Airlines

sáb. 8/3012:10 pmFCO - ONT

1 stop16h 37mAmerican Airlines

Deal found 4/15

$751

mar. 7/225:05 amONT - FCO

2 stops21h 40mAir Canada

dom. 7/272:30 pmFCO - ONT

2 stops55h 02mAir Canada

Deal found 4/15

$996

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 abril 15, 2025.

mar. 5/65:05 amONT - FCO

1 stop22h 15mUnited Airlines

vie. 5/2311:30 amFCO - ONT

2 stops43h 56mUnited Airlines

Deal found 4/14

$616

sáb. 4/2610:15 pmONT - FCO

1 stop24h 20mDelta

vie. 5/911:35 amFCO - ONT

1 stop32h 33mDelta

Deal found 4/15

$631

mar. 4/227:00 amONT - FCO

1 stop16h 05mBritish Airways

mar. 5/610:00 amFCO - ONT

1 stop17h 36mBritish Airways

Deal found 4/15

$633

lun. 4/217:00 amONT - FCO

1 stop16h 05mIberia

vie. 5/910:00 amFCO - ONT

1 stop22h 43mIberia

Deal found 4/15

$662

lun. 4/217:00 amONT - FCO

1 stop19h 05mKLM

lun. 5/59:45 amFCO - ONT

1 stop18h 43mKLM

Deal found 4/14

$665

sáb. 5/174:15 pmONT - FCO

3 stops32h 00mMultiple Airlines

jue. 5/2911:30 amFCO - ONT

2 stops18h 34mMultiple Airlines

Deal found 4/14

$929

sáb. 5/245:10 amONT - FCO

2 stops43h 05mAir Canada

mar. 6/311:30 amFCO - ONT

2 stops42h 34mAir Canada

Deal found 4/15

$1,171

Last-minute flights from Ontario to Rome
Discover last-minute flight deals from Ontario to Rome. Data last updated abril 15, 2025 and is based on user searches.

dom. 4/2012:10 amONT - FCO

1 stop46h 45mChina Airlines

lun. 5/511:00 amFCO - ONT

1 stop40h 00mChina Airlines

Deal found 4/14

$8,906

lun. 4/217:00 amONT - FCO

1 stop15h 35mDelta

jue. 5/19:45 amFCO - ONT

1 stop18h 43mDelta

Deal found 4/14

$639

lun. 4/211:20 pmONT - FCO

1 stop15h 00mUnited Airlines

mié. 4/3010:20 amFCO - ONT

2 stops20h 38mUnited Airlines

Deal found 4/14

$644

lun. 4/217:00 amONT - FCO

1 stop16h 05mIberia

vie. 5/910:00 amFCO - ONT

1 stop22h 43mIberia

Deal found 4/15

$662

lun. 4/217:00 amONT - FCO

1 stop19h 05mKLM

lun. 5/59:45 amFCO - ONT

1 stop18h 43mKLM

Deal found 4/14

$665

mar. 4/227:00 amONT - FCO

1 stop16h 05mBritish Airways

mar. 5/610:00 amFCO - ONT

1 stop17h 36mBritish Airways

Deal found 4/15

$633

mar. 4/227:05 amONT - FCO

2 stops18h 10mMultiple Airlines

mar. 5/611:30 amFCO - ONT

2 stops18h 23mMultiple Airlines

Deal found 4/15

$1,376

mar. 4/2210:54 amONT - FCO

1 stop36h 11mIberia

mar. 5/610:00 amFCO - ONT

1 stop17h 36mIberia

Deal found 4/15

$676

sáb. 4/2610:15 pmONT - FCO

1 stop24h 20mDelta

vie. 5/911:35 amFCO - ONT

1 stop19h 54mDelta

Deal found 4/15

$631

mar. 5/65:05 amONT - FCO

1 stop22h 15mUnited Airlines

vie. 5/2311:30 amFCO - ONT

2 stops43h 56mUnited Airlines

Deal found 4/14

$616

sáb. 5/174:15 pmONT - FCO

3 stops32h 00mMultiple Airlines

jue. 5/2911:30 amFCO - ONT

2 stops18h 34mMultiple Airlines

Deal found 4/14

$929

sáb. 5/245:10 amONT - FCO

2 stops43h 05mAir Canada

mar. 6/311:30 amFCO - ONT

2 stops42h 34mAir Canada

Deal found 4/15

$1,171

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 abril 15, 2025.

dom. 7/136:00 amONT - FCO

1 stop22h 20mUnited Airlines

Deal found 4/14

$518

dom. 7/137:00 amONT - FCO

1 stop15h 35mKLM

Deal found 4/14

$521

dom. 4/271:35 pmONT - FCO

2 stops34h 40mAir Canada

Deal found 4/14

$531

dom. 4/207:00 amONT - FCO

1 stop16h 05mBritish Airways

Deal found 4/14

$533

dom. 4/2010:54 amONT - FCO

2 stops18h 01mIberia

Deal found 4/15

$666

lun. 5/1910:00 pmONT - FCO

1 stop24h 35mDelta

Deal found 4/14

$703

dom. 6/17:00 amONT - FCO

2 stops18h 15mMultiple Airlines

Deal found 4/14

$864

vie. 5/2311:59 pmONT - FCO

1 stop23h 06mAmerican Airlines

Deal found 4/14

$1,273

dom. 6/226:30 amONT - FCO

2 stops21h 10mWestJet

Deal found 4/14

$2,037

vie. 4/1812:10 amONT - FCO

1 stop46h 45mChina Airlines

Deal found 4/15

$4,962

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioRome

ONT - FCO

ONTFCO

Ontario

mar. 5/6

5:05 am-12:20 pm

1 stop22h 15m

Rome Fiumicino

vie. 5/23

11:30 am-10:26 pm

2 stops43h 56m

$616

OntarioRome

ONT - FCO

ONTFCO

Ontario

sáb. 4/26

10:15 pm-7:35 am

1 stop24h 20m

Rome Fiumicino

vie. 5/9

11:35 am-10:29 pm

1 stop19h 54m

$631

OntarioRome

ONT - FCO

ONTFCO

Ontario

mar. 4/22

7:00 am-8:05 am

1 stop16h 05m

Rome Fiumicino

mar. 5/6

10:00 am-6:36 pm

1 stop17h 36m

$633

OntarioRome

ONT - FCO

ONTFCO

Ontario

lun. 4/21

7:00 am-8:05 am

1 stop16h 05m

Rome Fiumicino

vie. 5/9

10:00 am-11:43 pm

1 stop22h 43m

$662

OntarioRome

ONT - FCO

ONTFCO

Ontario

lun. 4/21

7:00 am-11:05 am

1 stop19h 05m

Rome Fiumicino

lun. 5/5

9:45 am-7:28 pm

1 stop18h 43m

$665

OntarioRome

ONT - FCO

ONTFCO

Ontario

sáb. 5/17

4:15 pm-9:15 am

3 stops32h 00m

Rome Fiumicino

jue. 5/29

11:30 am-9:04 pm

2 stops18h 34m

$929

OntarioRome

ONT - FCO

ONTFCO

Ontario

sáb. 5/24

5:10 am-9:15 am

2 stops43h 05m

Rome Fiumicino

mar. 6/3

11:30 am-9:04 pm

2 stops42h 34m

$1,171

OntarioRome

ONT - FCO

ONTFCO

Ontario

dom. 7/13

6:00 am-1:20 pm

1 stop22h 20m

$518

OntarioRome

ONT - FCO

ONTFCO

Ontario

dom. 7/13

7:00 am-7:35 am

1 stop15h 35m

$521

OntarioRome

ONT - FCO

ONTFCO

Ontario

dom. 4/27

1:35 pm-9:15 am

2 stops34h 40m

$531

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 17 results

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 April.

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*2 stars
eDreams	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 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 $1,208). 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?

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

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

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

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

China Airlines

8.2

Very good

729 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

China Airlines

8.2

Very good

729 reviews

China Airlines

8.2

Very good

729 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

Delta

8.0

Very good

7,918 reviews

China Airlines

8.2

Very good

729 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

KLM

7.8

Good

1,323 reviews

China Airlines

8.2

Very good

729 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

United Airlines

7.4

Good

8,658 reviews

China Airlines

8.2

Very good

729 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

American Airlines

7.2

Good

10,000 reviews

China Airlines

8.2

Very good

729 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

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. 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 $616 on this airline. Additional options worth looking into are Delta and British Airways, starting at $631 and $633 round-trip. United Airlines is 31% 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 United Airlines. According to our data, you can fly for as low as $518. Users have also found prices from $521 and $531 on KLM and Air Canada, 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 $1,208). 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

Fiumicino

Gaeta

Ciampino

Montepulciano

Ponza

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Ontario to Rome

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$541	Average$1,126	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$556	Average$1,105	FlexibilityNo cancel fee	On-time69%
KLM	Cheapest$591	Average$1,064	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$859	Average$1,288	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$924	Average$1,118	FlexibilityNo cancel fee	On-time70%

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$490+ Cheap flights from Ontario (ONT) to Rome (ROM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. 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

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from Ontario to Rome

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 abril 15, 2025.

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 abril 15, 2025.

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 April.

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

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?

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 abril 15, 2025.

Rainfall in Rome by month

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

Temperature in Rome by month

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

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 abril 15, 2025.

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

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.

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Top 5 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 abril 15, 2025.