HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Florence

$415+ Cheap flights from Ontario (ONT) to Florence (FLR)

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FLR
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Florence 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.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Ontario to Florence

Cheapest flights from Ontario to Florence
Explore the most affordable flight options available from Ontario to Florence. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This United Airlines deal was found by Cheapflights users on 10/16. 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.
Thu 11/131:29 pmONT - FLR
2 stops18h 01mUnited Airlines
Mon 11/177:10 amFLR - ONT
2 stops19h 24mUnited Airlines
Deal found 10/16$547
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Fri 11/141:29 pmONT - FLR
2 stops18h 01mUnited Airlines
Fri 11/218:00 amFLR - ONT
2 stops18h 34mUnited Airlines
Deal found 10/14$548
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Wed 10/291:33 pmONT - FLR
2 stops18h 57mUnited Airlines
Wed 11/59:35 amFLR - ONT
2 stops21h 56mUnited Airlines
Deal found 10/15$559
This United deal was found by Cheapflights users on 10/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:29 pmONT - FLR
2 stops19h 01mMultiple Airlines
Mon 11/35:15 pmFLR - ONT
2 stops36h 29mMultiple Airlines
Deal found 10/16$611
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Thu 10/169:36 amONT - FLR
2 stops19h 29mUnited Airlines
Fri 11/218:00 amFLR - ONT
2 stops18h 34mUnited Airlines
Deal found 10/15$620
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Thu 11/65:05 amONT - FLR
2 stops26h 25mUnited Airlines
Sat 11/158:00 amFLR - ONT
2 stops23h 51mUnited Airlines
Deal found 10/15$657
This United deal was found by Cheapflights users on 10/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/131:29 pmONT - FLR
2 stops18h 01mMultiple Airlines
Wed 11/2610:20 amFLR - ONT
2 stops19h 24mMultiple Airlines
Deal found 10/15$737
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Wed 12/245:05 amONT - FLR
2 stops26h 25mUnited Airlines
Thu 1/88:00 amFLR - ONT
2 stops23h 53mUnited Airlines
Deal found 10/16$801
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Fri 11/75:05 amONT - FLR
2 stops26h 25mUnited Airlines
Fri 12/56:30 amFLR - ONT
3 stops25h 19mUnited Airlines
Deal found 10/15$813
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Wed 12/246:00 amONT - FLR
2 stops25h 30mUnited Airlines
Wed 1/76:30 amFLR - ONT
2 stops20h 13mUnited Airlines
Deal found 10/16$818
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Wed 11/191:33 pmONT - FLR
2 stops17h 57mUnited Airlines
Wed 11/266:30 amFLR - ONT
2 stops23h 14mUnited Airlines
Deal found 10/14$886
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Thu 12/255:05 amONT - FLR
2 stops26h 25mUnited Airlines
Thu 1/88:00 amFLR - ONT
2 stops23h 53mUnited Airlines
Deal found 10/16$895

Cheap flight deals from Ontario to Florence

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Florence (FLR). 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$543
(Delta)

One-way from

$415
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$660
Provider with most accurate pricing for Ontario-Florence Peretola flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Florence Peretola flights.
Search Deals
From Ontario to Florence Peretola
Search Deals
One-way flight from Ontario to Florence Peretola
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($240 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Florence 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 October 16, 2025.
Use the filters below to find and compare flights from Ontario to Florence that are best for you.

Fly from

Ontario

Fly to

Florence

Route

Depart

Return

Price

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Tue 1/6

6:45 am-11:20 am

2 stops19h 35m

Florence Peretola

Wed 3/18

6:50 am-9:14 pm

2 stops22h 24m

$543

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Thu 11/13

1:29 pm-4:30 pm

2 stops18h 01m

Florence Peretola

Mon 11/17

7:10 am-5:34 pm

2 stops19h 24m

$547

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Wed 10/29

1:33 pm-4:30 pm

2 stops18h 57m

Florence Peretola

Wed 11/5

9:35 am-10:31 pm

2 stops21h 56m

$559

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Tue 3/3

1:00 pm-4:30 pm

2 stops18h 30m

Florence Peretola

Thu 4/2

8:15 am-6:00 pm

2 stops18h 45m

$559

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Thu 10/30

1:29 pm-4:30 pm

2 stops19h 01m

Florence Peretola

Mon 11/3

5:15 pm-8:44 pm

2 stops36h 29m

$611

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Sat 1/10

1:20 pm-6:30 pm

2 stops20h 10m

Florence Peretola

Fri 5/1

8:15 am-8:17 pm

2 stops21h 02m

$647

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Mon 1/5

5:05 am-12:35 pm

2 stops22h 30m

Florence Peretola

Sun 1/11

2:15 pm-9:58 pm

2 stops40h 43m

$653

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Thu 11/6

5:05 am-4:30 pm

2 stops26h 25m

Florence Peretola

Sat 11/15

8:00 am-10:51 pm

2 stops23h 51m

$657

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Mon 3/30

5:00 am-12:55 pm

2 stops22h 55m

Florence Peretola

Mon 4/6

1:45 pm-8:17 pm

2 stops39h 32m

$736

OntarioFlorence

ONT - FLR

ONTFLR

Ontario

Tue 3/31

1:00 pm-4:45 pm

2 stops18h 45m

Florence Peretola

Mon 4/6

1:45 pm-8:17 pm

2 stops39h 32m

$736

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Ontario to Florence

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 Florence in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 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-Florence flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Florence flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Florence flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Florence 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-Florence 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 Florence

Have a flexible travel schedule? Discover the best time to fly to Florence 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 Florence

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

Currently, February is the cheapest month in which you can book a flight from Ontario to Florence (average of $414). Flying from Ontario to Florence in June is currently the most expensive (average of $673). 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.

Reviews of airlines servicing Florence

Get insights into the airlines that provide service to Florence. 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 Florence. Reviews last updated October 16, 2025.
Get a feel of what it's like to fly with United Airlines from Ontario to Florence 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
8,982 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,982 reviews
United Airlines
7.4
Good
8,982 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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

  • How long is the flight from Ontario to Florence?

    For as low as $547, Delta can have you in Florence from Ontario in 18h 01m. The distance from Ontario to Florence is about 6163 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Ontario to Florence round-trip?

    According to our current data, United Airlines ($557), offers the cheapest pricing from Ontario to Florence.

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

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

  • How can I find direct flights from Ontario to Florence?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Florence 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 Florence?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Florence (average of $414). Flying from Ontario to Florence in June is currently the most expensive (average of $673). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Florence

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Leonardo da Vinci/Fiumicino flights
San Francisco to Leonardo da Vinci/Fiumicino flights
Ontario to Leonardo da Vinci/Fiumicino flights
Santa Ana to Leonardo da Vinci/Fiumicino flights
Burbank to Leonardo da Vinci/Fiumicino flights
San Jose to Leonardo da Vinci/Fiumicino flights
Oakland to Leonardo da Vinci/Fiumicino flights
San Francisco to Florence flights
San Diego to Leonardo da Vinci/Fiumicino flights
Los Angeles to Ciampino flights
Los Angeles to Florence flights
Las Vegas to Leonardo da Vinci/Fiumicino flights
San Francisco to Ciampino flights
Sacramento to Leonardo da Vinci/Fiumicino flights
Long Beach to Leonardo da Vinci/Fiumicino flights
San Diego to Florence flights
Fresno to Leonardo da Vinci/Fiumicino flights
Reno to Leonardo da Vinci/Fiumicino flights
Santa Ana to Florence flights
Sacramento to Florence flights
San Luis Obispo to Leonardo da Vinci/Fiumicino flights
Santa Rosa to Leonardo da Vinci/Fiumicino flights
Santa Barbara to Leonardo da Vinci/Fiumicino flights
Las Vegas to Florence flights
Medford to Leonardo da Vinci/Fiumicino flights
San Francisco to Pisa flights
Palm Springs to Leonardo da Vinci/Fiumicino flights
Las Vegas to Ciampino flights
San Jose to Florence flights
Los Angeles to Pisa flights
Monterey to Leonardo da Vinci/Fiumicino flights
San Diego to Pisa flights
Santa Ana to Pisa flights
San Jose to Pisa flights
Sacramento to Pisa flights
Santa Barbara to Florence flights
Oakland to Florence flights
Medford to Florence flights
Burbank to Florence flights
Arcata to Leonardo da Vinci/Fiumicino flights
Monterey to Florence flights
Burbank to Pisa flights
Las Vegas to Pisa flights
Redding to Leonardo da Vinci/Fiumicino flights
Reno to Pisa flights
Oakland to Ciampino flights
Oakland to Pisa flights

Top airline flying from Ontario to Florence

Discover the top airline that operate flights from Ontario to Florence. 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$557Average$658FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.