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$381+ Cheap flights from Fiumicino (FCO) to Ontario (ONT)

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
FCO — ONT
Jan 27 — Feb 31
Mon 1/27
Mon 2/3
1 adult, Economy
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Cheap flight deals from Leonardo da Vinci/Fiumicino to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Leonardo da Vinci/Fiumicino (FCO) to Ontario (ONT). 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 January 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$556
(British Airways)
Provider with most accurate pricing for Rome Fiumicino-Ontario flight deals.
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Provider most trusted by Cheapflights users for Rome Fiumicino-Ontario flights.
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From Rome Fiumicino to Ontario
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Find flight deals from Leonardo da Vinci/Fiumicino to Ontario

Cheapest flights from Leonardo da Vinci/Fiumicino to Ontario
Explore the most affordable flight options available from Leonardo da Vinci/Fiumicino to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 22, 2025.

This British Airways deal was found by Cheapflights users on 1/22. 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.
Tue 4/1510:00 amFCO - ONT
1 stop17h 29mBritish Airways
Sun 4/2712:50 pmONT - FCO
2 stops19h 10mBritish Airways
Deal found 1/22$558
This United Airlines deal was found by Cheapflights users on 1/22. 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.
Tue 2/188:25 amFCO - ONT
2 stops21h 15mUnited Airlines
Tue 2/256:00 amONT - FCO
2 stops17h 30mUnited Airlines
Deal found 1/22$566
This Delta deal was found by Cheapflights users on 1/22. 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.
Wed 2/126:10 amFCO - ONT
2 stops25h 42mDelta
Mon 4/282:36 pmONT - FCO
2 stops19h 29mDelta
Deal found 1/22$568
This KLM deal was found by Cheapflights users on 1/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3112:45 pmFCO - ONT
1 stop19h 07mKLM
Thu 2/67:05 amONT - FCO
1 stop18h 25mKLM
Deal found 1/22$573
This Iberia deal was found by Cheapflights users on 1/22. 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.
Thu 4/2410:00 amFCO - ONT
1 stop21h 11mIberia
Sat 5/37:00 amONT - FCO
1 stop16h 05mIberia
Deal found 1/22$636
This American Airlines deal was found by Cheapflights users on 1/22. 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 3/27:30 amFCO - ONT
2 stops25h 23mAmerican Airlines
Sun 3/1611:59 pmONT - FCO
1 stop27h 21mAmerican Airlines
Deal found 1/22$644
This oojo deal was found by Cheapflights users on 1/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1210:45 amFCO - ONT
1 stop39h 05mChina Airlines
Sun 4/2712:10 amONT - FCO
1 stop46h 45mChina Airlines
Deal found 1/22$7,743

Find flights from Leonardo da Vinci/Fiumicino to Ontario within your budget

Customize your flight search to find flights from Leonardo da Vinci/Fiumicino to Ontario 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 January 22, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Tue 4/15

10:00 am-6:29 pm

1 stop17h 29m

Ontario

Sun 4/27

12:50 pm-5:00 pm

2 stops19h 10m

$558

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Tue 2/18

8:25 am-8:40 pm

2 stops21h 15m

Ontario

Tue 2/25

6:00 am-8:30 am

2 stops17h 30m

$566

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Wed 2/12

6:10 am-10:52 pm

2 stops25h 42m

Ontario

Mon 4/28

2:36 pm-7:05 pm

2 stops19h 29m

$568

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Fri 2/7

12:45 pm-10:52 pm

1 stop19h 07m

Ontario

Tue 2/11

7:05 am-10:30 am

1 stop18h 25m

$573

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Thu 4/24

10:00 am-10:11 pm

1 stop21h 11m

Ontario

Sat 5/3

7:00 am-8:05 am

1 stop16h 05m

$636

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Sun 3/2

7:30 am-11:53 pm

2 stops25h 23m

Ontario

Sun 3/16

11:59 pm-11:20 am

1 stop27h 21m

$644

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Wed 2/12

10:45 am-4:50 pm

1 stop39h 05m

Ontario

Sun 4/27

12:10 am-7:55 am

1 stop46h 45m

$7,743

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Tue 5/20

7:05 pm-7:23 am

2 stops45h 18m

$381

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Tue 5/20

9:45 am-7:42 pm

1 stop18h 57m

$750

RomeOntario

FCO - ONT

FCOONT

Rome Fiumicino

Tue 4/8

9:45 am-10:39 pm

1 stop21h 54m

$752

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 15 results
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Compare providers for flights from Leonardo da Vinci/Fiumicino to Ontario

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 Leonardo da Vinci/Fiumicino to Ontario in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice 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 Rome Fiumicino Airport-Ontario flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Rome Fiumicino Airport-Ontario flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Rome Fiumicino Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rome Fiumicino Airport-Ontario 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 Rome Fiumicino Airport-Ontario 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 Leonardo da Vinci/Fiumicino to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Leonardo da Vinci/Fiumicino 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.

Travel insights for flights from Leonardo da Vinci/Fiumicino to Ontario

Get recent, data-driven insights about flights from Leonardo da Vinci/Fiumicino to Ontario including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Rome Fiumicino Airport to Ontario (average of $246). Flying from Rome Fiumicino Airport to Ontario in March is currently the most expensive (average of $310). 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.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, 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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated January 22, 2025.
China Airlines
8.2
Very good
737 reviews

Crew

8.5

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.2

Boarding

8.3

Reviews

1 / 10

For the money it’s good value. Seat space rather small

China Airlines
8.2
Very good
737 reviews
China Airlines
8.2
Very good
737 reviews

Crew

8.5

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.2

Boarding

8.3

Reviews

1 / 10

For the money it’s good value. Seat space rather small

Delta
8.0
Very good
8,512 reviews
China Airlines
8.2
Very good
737 reviews

Crew

8.5

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.2

Boarding

8.3

Reviews

1 / 10

For the money it’s good value. Seat space rather small

KLM
7.8
Good
1,339 reviews
China Airlines
8.2
Very good
737 reviews

Crew

8.5

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.2

Boarding

8.3

Reviews

1 / 10

For the money it’s good value. Seat space rather small

United Airlines
7.4
Good
8,975 reviews
China Airlines
8.2
Very good
737 reviews

Crew

8.5

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.2

Boarding

8.3

Reviews

1 / 10

For the money it’s good value. Seat space rather small

American Airlines
7.2
Good
10,000 reviews
China Airlines
8.2
Very good
737 reviews

Crew

8.5

Comfort

8.0

Food

7.8

Entertainment

8.0

Overall

8.2

Boarding

8.3

Reviews

1 / 10

For the money it’s good value. Seat space rather small

Related info for your journey

Find useful and relevant information for your journey from Leonardo da Vinci/Fiumicino to Ontario. 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 into for flights to Ontario from Rome Fiumicino?

    If you book a flight to Ontario from Rome Fiumicino, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Rome Fiumicino to Ontario per day from 0 different airlines.

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

    According to our current data, British Airways ($556), United Airlines ($564), and Delta ($568) offers the cheapest pricing from Rome Fiumicino Airport to Ontario.

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

    $744 is the cheapest one-way deal found within the past few days, from KLM. You may also be able to find cheap deals on Delta and British Airways, with prices starting from $745 and $806, respectively.

  • Can I find deals for flights from Leonardo da Vinci/Fiumicino to Ontario that include hotel bookings?

    Yes. In addition to deals on Leonardo da Vinci/Fiumicino to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Leonardo da Vinci/Fiumicino to Ontario?

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

  • Can I find deals for business class flights from Leonardo da Vinci/Fiumicino to Ontario?

    Yes. Cheapflights offers flight deals from Leonardo da Vinci/Fiumicino to Ontario 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 Rome Fiumicino Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Rome Fiumicino Airport to Ontario (average of $246). Flying from Rome Fiumicino Airport to Ontario in March is currently the most expensive (average of $310). 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

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