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$80+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
FLL — ONT
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
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 March 23, 2026.

This Frontier deal was found by Cheapflights users on 3/19. 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.
Fri 4/176:24 pm
FLL
-
ONT
1 stop8h 34m
Frontier
Mon 4/208:26 am
ONT
-
FLL
1 stop7h 29m
Frontier
Deal found 3/19$160
This Frontier deal was found by Cheapflights users on 3/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/911:49 am
FLL
-
ONT
1 stop9h 56m
Frontier
Sun 4/127:40 pm
ONT
-
FLL
1 stop11h 14m
Frontier
Deal found 3/22$180
This CheapOair deal was found by Cheapflights users on 3/20. 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 4/231:06 pm
FLL
-
ONT
1 stop30h 32m
Frontier
Mon 4/278:26 am
ONT
-
FLL
1 stop8h 07m
Frontier
Deal found 3/20$184
This Frontier deal was found by Cheapflights users on 3/21. 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 4/911:49 am
FLL
-
ONT
1 stop9h 56m
Frontier
Fri 4/107:40 pm
ONT
-
FLL
1 stop13h 14m
Frontier
Deal found 3/21$200
This Frontier deal was found by Cheapflights users on 3/23. 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.
Fri 4/1010:49 am
FLL
-
ONT
1 stop10h 56m
Frontier
Sun 4/127:40 pm
ONT
-
FLL
1 stop11h 14m
Frontier
Deal found 3/23$202
This Orbitz deal was found by Cheapflights users on 3/21. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:06 pm
FLL
-
ONT
1 stop30h 32m
Frontier
Thu 5/78:06 pm
ONT
-
FLL
1 stop12h 53m
Frontier
Deal found 3/21$210
This CheapOair deal was found by Cheapflights users on 3/23. 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.
Wed 5/2712:54 pm
FLL
-
ONT
1 stop21h 41m
Frontier
Sun 5/318:06 pm
ONT
-
FLL
1 stop12h 53m
Frontier
Deal found 3/23$215
This Frontier deal was found by Cheapflights users on 3/23. 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.
Fri 4/310:49 am
FLL
-
ONT
1 stop10h 56m
Frontier
Sun 4/127:40 pm
ONT
-
FLL
1 stop11h 14m
Frontier
Deal found 3/23$225
This CheapOair deal was found by Cheapflights users on 3/19. 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.
Fri 5/2212:54 pm
FLL
-
ONT
1 stop22h 26m
Frontier
Tue 5/268:06 pm
ONT
-
FLL
1 stop12h 53m
Frontier
Deal found 3/19$230
This Frontier deal was found by Cheapflights users on 3/21. 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.
Mon 4/610:49 am
FLL
-
ONT
1 stop10h 51m
Frontier
Fri 4/107:40 pm
ONT
-
FLL
1 stop13h 14m
Frontier
Deal found 3/21$234

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 March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$160
(Frontier)

One-way from

$80
(Frontier)

Popular in

September

Cheapest in

July

Average price

$356
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 ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 23, 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

Tue 4/14

5:25 am-11:36 am

1 stop9h 11m

Ontario

Fri 4/24

10:15 pm-9:13 am

1 stop7h 58m

$411

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Sun 5/3

7:00 am-3:10 pm

1 stop11h 10m

Ontario

Tue 5/5

10:30 am-10:15 pm

2 stops8h 45m

$454

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Thu 7/23

5:00 am-8:55 am

1 stop6h 55m

Ontario

Sat 8/1

7:10 am-7:10 pm

2 stops9h 00m

$464

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Wed 4/8

7:36 am-12:38 pm

1 stop8h 02m

Ontario

Sat 4/11

5:10 am-5:55 pm

2 stops9h 45m

$504

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Wed 5/6

6:23 pm-9:45 am

1 stop18h 22m

Ontario

Sat 5/9

10:39 am-5:23 pm

1 stop27h 44m

$553
Quickest round-trip

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Fri 8/21

8:00 am-12:38 pm

1 stop7h 38m

Ontario

Tue 8/25

5:00 am-3:34 pm

1 stop7h 34m

$569

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Fri 8/21

8:00 am-12:38 pm

1 stop7h 38m

Ontario

Mon 8/24

5:00 am-3:34 pm

1 stop7h 34m

$569

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Fri 7/24

5:00 pm-9:55 pm

1 stop7h 55m

Ontario

Wed 7/29

1:18 pm-11:49 pm

1 stop7h 31m

$569

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Thu 7/2

8:00 am-12:47 pm

1 stop7h 47m

Ontario

Mon 7/6

1:18 pm-11:49 pm

1 stop7h 31m

$569

Fort LauderdaleOntario

FLL - ONT

FLLONT

Fort Lauderdale

Thu 4/9

4:20 pm-9:00 pm

1 stop7h 40m

Ontario

Thu 4/16

6:00 am-5:11 pm

1 stop8h 11m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust 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 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, October is the cheapest month in which you can book a flight from Fort Lauderdale to Ontario (average of $118). Flying from Fort Lauderdale to Ontario in July is currently the most expensive (average of $168). 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 March 23, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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
4,324 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,324 reviews
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,319 reviews
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,460 reviews
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,489 reviews
Southwest
8.0
Very good
4,324 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 8h 02m. Delta provides one of the quickest options available for as low as $504. 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 Delta and American Airlines. These flights start at 49% 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 Delta from $128 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, October is the cheapest month in which you can book a flight from Fort Lauderdale to Ontario (average of $118). Flying from Fort Lauderdale to Ontario in July is currently the most expensive (average of $168). 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 4 airlines flying from Fort Lauderdale to Ontario

Discover the top 4 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 March 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$192Average$353FlexibilityNo cancel feeOn-time69%
DeltaCheapest$257Average$344FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$298Average$407FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$303Average$420FlexibilityNo cancel feeOn-time63%

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