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$84+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
CLE — ONT
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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The best prices from Cleveland Hopkins Intl to Ontario are usually found in May or February, booked 45 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap 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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$170
(CheapOair)

One-way from

$84
(Cheapflightsfares)

Popular in

November

Cheapest in

May

Average price

$394
Provider with most accurate pricing for Cleveland Hopkins Intl-Ontario flight deals.
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Provider most trusted by Cheapflights users for Cleveland Hopkins Intl-Ontario flights.
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From Cleveland Hopkins Intl to Ontario
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One-way flight from Cleveland Hopkins Intl to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 March 3, 2025.

This CheapOair deal was found by Cheapflights users on 3/3. 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 4/17:32 pmCLE - ONT
1 stop21h 55mFrontier
Mon 4/712:59 amONT - CLE
1 stop7h 00mFrontier
Deal found 3/3$170
This Delta deal was found by Cheapflights users on 3/3. 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 6/42:20 pmCLE - ONT
1 stop8h 09mDelta
Tue 6/1010:59 pmONT - CLE
1 stop7h 13mDelta
Deal found 3/3$331
This Southwest deal was found by Cheapflights users on 3/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:00 pmCLE - ONT
1 stop8h 05mSouthwest
Wed 8/276:20 amONT - CLE
2 stops8h 25mSouthwest
Deal found 3/2$362
This American Airlines deal was found by Cheapflights users on 3/2. 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.
Fri 4/118:00 amCLE - ONT
1 stop8h 49mAmerican Airlines
Sun 4/1310:40 pmONT - CLE
1 stop7h 03mAmerican Airlines
Deal found 3/2$399
This Expedia deal was found by Cheapflights users on 3/3. 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.
Tue 4/227:41 pmCLE - ONT
2 stops16h 35mMultiple Airlines
Mon 4/2812:59 amONT - CLE
1 stop7h 00mMultiple Airlines
Deal found 3/3$407
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Mon 3/244:25 pmCLE - ONT
1 stop8h 34mUnited Airlines
Thu 3/276:45 pmONT - CLE
1 stop7h 26mUnited Airlines
Deal found 3/2$431
This Alaska Airlines deal was found by Cheapflights users on 3/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/37:48 pmCLE - ONT
1 stop31h 11mAlaska Airlines
Tue 4/810:18 amONT - CLE
2 stops29h 30mAlaska Airlines
Deal found 3/2$518

Find flights from Cleveland to Ontario within your budget

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 March 3, 2025.

Fly from

Cleveland

Fly to

Ontario

Route

Depart

Return

Price

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Tue 4/1

7:32 pm-2:27 pm

1 stop21h 55m

Ontario

Mon 4/7

12:59 am-10:59 am

1 stop7h 00m

$170

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Wed 6/4

2:20 pm-7:29 pm

1 stop8h 09m

Ontario

Tue 6/10

10:59 pm-9:12 am

1 stop7h 13m

$331

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Wed 8/20

5:00 pm-10:05 pm

1 stop8h 05m

Ontario

Wed 8/27

6:20 am-5:45 pm

2 stops8h 25m

$362

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Fri 4/25

5:00 am-11:59 am

2 stops9h 59m

Ontario

Sat 4/26

6:00 am-4:17 pm

1 stop7h 17m

$385

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Tue 4/22

7:41 pm-9:16 am

2 stops16h 35m

Ontario

Mon 4/28

12:59 am-10:59 am

1 stop7h 00m

$407

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Mon 3/24

4:25 pm-9:59 pm

1 stop8h 34m

Ontario

Wed 3/26

5:05 am-3:07 pm

1 stop7h 02m

$431

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Thu 4/3

7:48 pm-11:59 pm

1 stop31h 11m

Ontario

Tue 4/8

10:18 am-6:48 pm

2 stops29h 30m

$518

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Tue 4/8

7:32 pm-11:59 pm

1 stop7h 27m

$84

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Tue 3/18

7:05 am-11:36 am

1 stop7h 31m

$166

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Sat 4/26

1:33 pm-9:58 pm

2 stops11h 25m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 13 results
1
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
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 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.

Travel insights for flights from Cleveland to Ontario

Get recent, data-driven insights about flights from Cleveland to Ontario including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Cleveland to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Cleveland to Ontario. Price data was last updated on February 28, 2025.

The best time to book flights from Cleveland to Ontario is 45 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 $246). Flying from Cleveland to Ontario in March is currently the most expensive (average of $313). 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.

What is the cheapest time of day to fly from CLE to ONT?

Find hourly flight availability from Cleveland to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 3, 2025.

One of the essential ways to save on airfare from Cleveland to Ontario is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 20% on airfare.

What is the cheapest day to fly from Cleveland to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Cleveland to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Cleveland to Ontario flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 March 3, 2025.
To help decide which airline to fly from Cleveland to Ontario, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,333 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,713 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,070 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines
7.4
Good
8,679 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Food

7.1

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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.

  • What are the cheapest airlines flying from Cleveland to Ontario round-trip?

    Currently priced at $170, 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 Delta and Southwest - these airlines can fly you to your destination from $336 and $357, respectively. Users have found that Frontier is 50% cheaper than the other options available to this destination.

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

    $84 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $166 and $177, 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 $246). Flying from Cleveland to Ontario in March is currently the most expensive (average of $313). 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.

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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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$160Average$260FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$308Average$442FlexibilityNo cancel feeOn-time71%
DeltaCheapest$311Average$416FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$314Average$472FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$344Average$451FlexibilityNo cancel feeOn-time63%
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