Ontario

$109+ Cheap flights from Cleveland to Ontario (CLE - 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
CLE — ONT
Jun 14 — Jun 211
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Cheap flight deals from Cleveland to Ontario

Cheapest flights from Cleveland to Ontario
Explore the most affordable flight options available from Cleveland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2026.

This Frontier deal was found by Cheapflights users on 5/11. 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.
Tue 6/28:59 am
CLE
-
ONT
1 stop9h 45m
Frontier
Wed 6/38:30 am
ONT
-
CLE
1 stop8h 11m
Frontier
Deal found 5/11$210
This Booking.com deal was found by Cheapflights users on 5/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:22 pm
CLE
-
ONT
1 stop26h 31m
Frontier
Tue 7/143:40 pm
ONT
-
CLE
1 stop12h 50m
Frontier
Deal found 5/11$222
This Frontier deal was found by Cheapflights users on 5/12. 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.
Sat 7/118:25 am
CLE
-
ONT
1 stop11h 05m
Frontier
Tue 7/143:40 pm
ONT
-
CLE
1 stop12h 50m
Frontier
Deal found 5/12$224
This Expedia deal was found by Cheapflights users on 5/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:07 pm
CLE
-
ONT
1 stop26h 25m
Frontier
Sun 6/146:00 am
ONT
-
CLE
1 stop26h 03m
Frontier
Deal found 5/11$230
This Booking.com deal was found by Cheapflights users on 5/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:28 pm
CLE
-
ONT
1 stop21h 16m
Frontier
Wed 6/31:39 pm
ONT
-
CLE
1 stop14h 53m
Frontier
Deal found 5/11$236
This CheapOair deal was found by Cheapflights users on 5/12. 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 6/49:28 pm
CLE
-
ONT
1 stop25h 04m
Frontier
Mon 6/86:00 am
ONT
-
CLE
1 stop26h 03m
Frontier
Deal found 5/12$238
This Mytrip deal was found by Cheapflights users on 5/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:07 pm
CLE
-
ONT
1 stop14h 57m
Frontier
Wed 5/274:39 pm
ONT
-
CLE
1 stop24h 54m
Frontier
Deal found 5/11$239
This Frontier deal was found by Cheapflights users on 5/12. 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 5/289:38 pm
CLE
-
ONT
1 stop13h 26m
Frontier
Tue 6/28:30 am
ONT
-
CLE
1 stop8h 11m
Frontier
Deal found 5/12$240
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:59 pm
CLE
-
ONT
1 stop18h 58m
Frontier
Sat 10/36:00 am
ONT
-
CLE
1 stop11h 54m
Frontier
Deal found 5/14$241
This Booking.com deal was found by Cheapflights users on 5/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:08 pm
CLE
-
ONT
1 stop14h 42m
Frontier
Tue 8/181:27 pm
ONT
-
CLE
1 stop14h 55m
Frontier
Deal found 5/12$242
This CheapOair deal was found by Cheapflights users on 5/12. 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 6/59:28 pm
CLE
-
ONT
1 stop25h 04m
Frontier
Mon 6/86:00 am
ONT
-
CLE
1 stop26h 03m
Frontier
Deal found 5/12$244
This CheapOair deal was found by Cheapflights users on 5/12. 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.
Sat 7/118:25 am
CLE
-
ONT
1 stop11h 05m
Frontier
Sat 7/1810:49 am
ONT
-
CLE
1 stop21h 09m
Frontier
Deal found 5/12$248

Find flight deals from Cleveland to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Cleveland (CLE) 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 May 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$210
(Frontier)

One-way from

$109
(Super.com)

Popular in

June

Cheapest in

August

Average price

$382
Provider with most accurate pricing for Cleveland Hopkins Intl-Ontario flight deals.
Provider most trusted by Cheapflights users for Cleveland Hopkins Intl-Ontario flights.
From Cleveland Hopkins Intl to Ontario
One-way flight from Cleveland Hopkins Intl to Ontario
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cleveland 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 May 15, 2026.
Use the filters below to find and compare flights from Cleveland to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Wed 6/3

8:59 am-7:32 pm

1 stop13h 33m

Ontario

Sun 6/14

6:00 am-11:03 am

1 stop26h 03m

$240

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Wed 6/3

8:59 am-3:44 pm

1 stop9h 45m

Ontario

Sun 6/7

3:30 pm-7:32 am

1 stop13h 02m

$250

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Mon 8/17

9:00 am-3:07 pm

1 stop9h 07m

Ontario

Fri 8/21

3:34 pm-7:22 am

1 stop12h 48m

$250

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Thu 7/2

5:35 am-10:40 am

1 stop8h 05m

Ontario

Tue 7/14

5:10 pm-9:10 am

2 stops13h 00m

$413

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Thu 9/24

5:55 pm-11:24 pm

1 stop8h 29m

Ontario

Mon 9/28

3:12 pm-5:11 am

1 stop10h 59m

$421

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Fri 8/14

2:42 pm-9:52 pm

1 stop10h 10m

Ontario

Tue 8/18

6:00 am-6:31 pm

2 stops9h 31m

$441

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Mon 6/15

4:28 pm-9:48 pm

1 stop8h 20m

Ontario

Fri 6/19

10:00 pm-10:49 am

1 stop9h 49m

$449

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Thu 9/24

7:15 am-6:01 pm

2 stops13h 46m

Ontario

Tue 9/29

10:59 pm-5:13 pm

2 stops15h 14m

$453

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Fri 9/25

4:25 pm-9:56 pm

1 stop8h 31m

Ontario

Tue 9/29

10:59 pm-5:13 pm

2 stops15h 14m

$465
Quickest round-trip

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Mon 6/29

5:35 am-10:40 am

1 stop8h 05m

Ontario

Mon 6/29

10:00 pm-10:49 am

1 stop9h 49m

$477

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

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

Compare providers for flights from Cleveland 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 Cleveland to Ontario in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy1 starTrust 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 Cleveland-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cleveland-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cleveland-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cleveland-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 Cleveland-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 Cleveland to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Cleveland to Ontario (average of $260). Flying from Cleveland to Ontario in June is currently the most expensive (average of $486). 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.

How much does it cost to fly round-trip from Cleveland to Ontario?

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 May 15, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Cleveland to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Boarding

8.1

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.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Boarding

8.1

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.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Boarding

8.1

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.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Boarding

8.1

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.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Boarding

8.1

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.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Boarding

8.1

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 Cleveland 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 Cleveland to Ontario?

    A quick flight from Cleveland to Ontario can take about 8h 05m. Frontier provides one of the quickest options available for as low as $413. Cleveland and Ontario are separated by a distance of 2002 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 Cleveland to Ontario round-trip?

    Currently priced at $167, Frontier will fly you from Cleveland to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $279 and $286, respectively. Users have found that Frontier is 56% cheaper than the other options available to this destination.

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

    $78 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Frontier and United Airlines, with prices starting from $85 and $139, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Cleveland to Ontario (average of $260). Flying from Cleveland to Ontario in June is currently the most expensive (average of $486). 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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Alternative routes for Cleveland to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Cleveland to Ontario

Discover the top 5 airlines that operate flights from Cleveland 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 May 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$167Average$283FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$279Average$476FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$286Average$466FlexibilityNo cancel feeOn-time71%
DeltaCheapest$296Average$446FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$361Average$455FlexibilityNo cancel feeOn-time69%

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