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$114+ Cheap flights from Fort Lauderdale to Ontario (FLL - 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
FLL — ONT
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
1 adult, Economy
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Cheap flight deals from Fort Lauderdale to Ontario

Cheapest flights from Fort Lauderdale to Ontario
Explore the most affordable flight options available from Fort Lauderdale to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:54 pm
FLL
-
ONT
2 stops28h 53m
Frontier
Sun 9/276:45 pm
ONT
-
FLL
1 stop14h 27m
Frontier
Deal found 7/29$270
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:15 pm
FLL
-
ONT
1 stop21h 17m
Frontier
Wed 8/2610:59 am
ONT
-
FLL
1 stop22h 21m
Frontier
Deal found 7/29$278
This CheapOair deal was found by Cheapflights users on 7/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:15 pm
FLL
-
ONT
1 stop8h 46m
Frontier
Tue 9/810:59 am
ONT
-
FLL
1 stop22h 13m
Frontier
Deal found 7/31$284
This CheapOair deal was found by Cheapflights users on 7/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:15 pm
FLL
-
ONT
1 stop21h 17m
Frontier
Wed 9/210:59 am
ONT
-
FLL
1 stop22h 21m
Frontier
Deal found 7/29$286
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/239:47 pm
FLL
-
ONT
2 stops21h 35m
Frontier
Fri 8/289:33 am
ONT
-
FLL
1 stop23h 47m
Frontier
Deal found 8/1$287
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:24 pm
FLL
-
ONT
2 stops24h 06m
Frontier
Mon 9/146:45 pm
ONT
-
FLL
1 stop14h 27m
Frontier
Deal found 8/1$298
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:24 pm
FLL
-
ONT
2 stops20h 40m
Frontier
Mon 9/216:45 pm
ONT
-
FLL
1 stop14h 27m
Frontier
Deal found 8/1$300
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:05 pm
FLL
-
ONT
1 stop28h 32m
Frontier
Sun 11/83:47 pm
ONT
-
FLL
1 stop17h 23m
Frontier
Deal found 7/31$301
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:58 am
FLL
-
ONT
1 stop24h 38m
Frontier
Tue 9/810:59 am
ONT
-
FLL
1 stop22h 13m
Frontier
Deal found 7/29$307

Find flight deals from Fort Lauderdale to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Fort Lauderdale (FLL) 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 August 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$270
(Kiwi.com)

One-way from

$114
(Kiwi.com)

Popular in

September

Cheapest in

March

Average price

$467
Provider with most accurate pricing for Fort Lauderdale-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Fort Lauderdale-Ontario flights.
Search Deals
From Fort Lauderdale to Ontario
Search Deals
One-way flight from Fort Lauderdale to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fort Lauderdale 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 August 3, 2026.
Use the filters below to find and compare flights from Fort Lauderdale to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Thu 9/10

6:29 pm-11:16 am

1 stop19h 47m

Ontario

Tue 9/15

12:12 pm-5:26 pm

1 stop26h 14m

$428

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Thu 10/22

6:59 pm-11:55 pm

1 stop7h 56m

Ontario

Mon 10/26

11:15 pm-10:00 am

1 stop7h 45m

$442

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Mon 10/5

6:44 pm-11:47 pm

1 stop8h 03m

Ontario

Mon 10/12

6:00 am-5:49 pm

1 stop8h 49m

$457

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Tue 8/25

2:35 pm-7:53 pm

1 stop8h 18m

Ontario

Sun 8/30

10:00 pm-11:05 am

1 stop10h 05m

$477

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Thu 10/22

5:00 pm-9:54 pm

1 stop7h 54m

Ontario

Sun 10/25

11:15 pm-10:01 am

1 stop7h 46m

$489
Quickest round-trip

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Thu 10/1

6:18 pm-10:24 pm

1 stop7h 06m

Ontario

Sun 10/4

10:00 pm-8:54 am

1 stop7h 54m

$489

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Wed 8/19

7:10 am-12:40 pm

2 stops8h 30m

Ontario

Fri 8/21

8:30 am-9:50 pm

2 stops10h 20m

$497

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Tue 9/22

7:10 am-2:05 pm

2 stops9h 55m

Ontario

Sun 9/27

8:10 pm-11:25 am

2 stops12h 15m

$506

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Fri 8/21

3:44 pm-9:52 pm

1 stop9h 08m

Ontario

Sun 8/30

10:00 pm-8:54 am

1 stop7h 54m

$527

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Sat 9/5

11:15 am-6:12 pm

1 stop9h 57m

Ontario

Mon 9/7

6:00 am-3:33 pm

1 stop6h 33m

$531

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from Fort Lauderdale 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 Fort Lauderdale to Ontario in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

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

Have a flexible travel schedule? Discover the best time to fly to Ontario from Fort Lauderdale 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 Fort Lauderdale to Ontario

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

Currently, March is the cheapest month in which you can book a flight from Fort Lauderdale to Ontario (average of $250). Flying from Fort Lauderdale to Ontario in September is currently the most expensive (average of $562). 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 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 August 3, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from Fort Lauderdale to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,224 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
Southwest
8.0
Very good
4,224 reviews
Southwest
8.0
Very good
4,224 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
United Airlines
7.4
Good
10,058 reviews
Southwest
8.0
Very good
4,224 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
American Airlines
7.1
Good
11,842 reviews
Southwest
8.0
Very good
4,224 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Related info for your journey

Find useful and relevant information for your journey from Fort Lauderdale to Ontario. 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 Fort Lauderdale to Ontario?

    A quick flight from Fort Lauderdale to Ontario can take about 7h 56m. Alaska Airlines provides one of the quickest options available for as low as $442. Fort Lauderdale and Ontario are separated by a distance of 2291 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 Fort Lauderdale to Ontario round-trip?

    United Airlines, at $192, was found to be the cheapest airline from Fort Lauderdale to Ontario.Alternate airlines to your destination round-trip include Southwest and American Airlines. These flights start at 52% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $100 on Frontier. Other airlines that offer cheap prices include United Airlines from $128 and Southwest from $131 one-way.

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

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

  • How can I find direct flights from Fort Lauderdale to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Fort Lauderdale 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 Fort Lauderdale to Ontario?

    Currently, March is the cheapest month in which you can book a flight from Fort Lauderdale to Ontario (average of $250). Flying from Fort Lauderdale to Ontario in September is currently the most expensive (average of $562). 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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Top 3 airlines flying from Fort Lauderdale to Ontario

Discover the top 3 airlines that operate flights from Fort Lauderdale to Ontario. 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 August 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$192Average$353FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$303Average$420FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$314Average$478FlexibilityNo cancel feeOn-time71%

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