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$63+ Cheap flights from Ohio to Ontario (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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — ONT
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Ohio to Ontario

Cheapest flights from Ohio to Ontario
Explore the most affordable flight options available from Ohio to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

This CheapOair deal was found by Cheapflights users on 12/24. 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 12/257:00 amCLE - ONT
1 stop13h 22mFrontier
Sat 1/107:00 amONT - CLE
1 stop25h 07mFrontier
Deal found 12/24$254
This CheapOair deal was found by Cheapflights users on 12/23. 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 12/316:00 pmCLE - ONT
1 stop26h 22mFrontier
Tue 1/67:52 amONT - CLE
1 stop28h 18mFrontier
Deal found 12/23$255
This Frontier deal was found by Cheapflights users on 12/24. 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.
Wed 12/314:25 pmCVG - ONT
1 stop10h 34mFrontier
Mon 1/128:31 amONT - CVG
1 stop12h 30mFrontier
Deal found 12/24$263
This Frontier deal was found by Cheapflights users on 12/24. 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.
Wed 12/314:25 pmCVG - ONT
1 stop10h 34mFrontier
Sun 1/118:31 amONT - CVG
1 stop12h 30mFrontier
Deal found 12/24$298
This Frontier deal was found by Cheapflights users on 12/24. 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 12/257:00 amCLE - ONT
1 stop13h 22mFrontier
Thu 1/16:07 pmONT - CLE
1 stop9h 53mFrontier
Deal found 12/24$304
This Frontier deal was found by Cheapflights users on 12/24. 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 12/258:20 pmCLE - ONT
1 stop6h 39mFrontier
Thu 1/810:18 pmONT - CLE
1 stop12h 52mFrontier
Deal found 12/24$312
This Frontier deal was found by Cheapflights users on 12/24. 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 12/276:00 pmCLE - ONT
1 stop8h 21mFrontier
Wed 12/316:45 amONT - CLE
1 stop13h 09mFrontier
Deal found 12/24$322
This CheapOair deal was found by Cheapflights users on 12/24. 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 12/2510:01 pmDTW - ONT
1 stop28h 58mFrontier
Wed 12/316:00 amONT - DTW
1 stop21h 54mFrontier
Deal found 12/24$323
This CheapOair deal was found by Cheapflights users on 12/24. 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 12/314:25 pmCVG - ONT
1 stop10h 34mFrontier
Sat 1/36:45 amONT - CVG
1 stop16h 23mFrontier
Deal found 12/24$329
This Frontier deal was found by Cheapflights users on 12/24. 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 12/258:20 pmCLE - ONT
1 stop6h 39mFrontier
Mon 1/56:00 pmONT - CLE
1 stop9h 40mFrontier
Deal found 12/24$333
This Frontier deal was found by Cheapflights users on 12/24. 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 12/265:13 pmCLE - ONT
1 stop9h 46mFrontier
Wed 12/316:45 amONT - CLE
1 stop13h 09mFrontier
Deal found 12/24$342
This Frontier deal was found by Cheapflights users on 12/24. 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 12/276:00 pmCLE - ONT
1 stop8h 21mFrontier
Mon 1/56:00 pmONT - CLE
1 stop9h 40mFrontier
Deal found 12/24$343

Find flight deals from Ohio to Ontario

Keep the following information in mind while searching for Ohio to Ontario flight deals. Data was last updated December 26, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$148
(Frontier)

One-way from

$63
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$429
Provider with most accurate pricing for Cleveland Hopkins Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cleveland Hopkins Intl-Los Angeles flights.
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From Ohio to Ontario
Search Deals
One-way flight from Ohio to Ontario
Search Deals
High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ohio 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 December 26, 2025.
Use the filters below to find and compare flights from Ohio to Ontario that are best for you.

Fly from

Ohio

Fly to

Ontario

Route

Depart

Return

Price

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Tue 2/10

7:20 am-1:52 pm

1 stop9h 32m

Ontario

Wed 2/18

7:17 pm-6:07 am

1 stop7h 50m

$148

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Tue 2/10

7:20 am-1:52 pm

1 stop9h 32m

Ontario

Mon 2/23

6:43 pm-6:07 am

1 stop8h 24m

$165

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Tue 1/20

5:09 pm-2:12 pm

1 stop24h 03m

Ontario

Tue 1/27

7:15 am-4:41 pm

1 stop6h 26m

$166

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 2/18

8:30 am-9:34 am

1 stop28h 04m

Ontario

Sat 2/21

6:00 am-11:55 pm

1 stop14h 55m

$166

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 1/26

1:45 pm-12:20 am

1 stop13h 35m

Ontario

Thu 1/29

11:04 am-11:58 pm

1 stop9h 54m

$182

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Mon 2/23

8:13 pm-11:59 pm

1 stop6h 46m

Ontario

Thu 2/26

6:05 am-7:23 pm

1 stop10h 18m

$182

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Mon 2/23

7:15 am-5:48 pm

1 stop13h 33m

Ontario

Thu 2/26

6:05 am-8:55 pm

1 stop11h 50m

$182

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Sun 2/8

9:15 am-7:32 pm

1 stop13h 17m

Ontario

Tue 2/24

3:22 pm-6:07 am

1 stop11h 45m

$200

ClevelandOntario

CLE - ONT

CLEONT

Cleveland Hopkins Intl

Sun 2/8

9:15 am-1:53 pm

1 stop7h 38m

Ontario

Wed 2/18

7:17 pm-6:07 am

1 stop7h 50m

$200

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 1/30

5:14 pm-12:20 am

1 stop10h 06m

Ontario

Wed 2/11

8:10 am-11:55 pm

1 stop12h 45m

$200

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 60 results
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Best time to book a flight from Ohio to Ontario

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

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

Currently, October is the cheapest month in which you can book a flight from Ohio to Ontario (average of $106). Flying from Ohio to Ontario in April is currently the most expensive (average of $166). 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 OH to ONT?

Find hourly flight availability from Ohio 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 December 26, 2025.

When flying from Ohio to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 26% versus a flight in the morning.

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

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

Travelers seeking maximum savings on their Ohio to Ontario flight should consider departing on Saturday 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.

Related info for your journey

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

  • What airport do you fly into for flights to Ontario from Ohio?

    Ontario (ONT) is the airport you will fly into if you book a flight from Ohio to Ontario. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

  • How long is the flight from Ohio to Ontario?

    A quick flight from Ohio to Ontario can take about 9h 28m. Frontier provides one of the quickest options available for as low as $309. There are 1873 mi between Ohio and Ontario. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $78. Frontier flights start at $85 while deals on Southwest start at $109 one-way.

  • What are the most popular routes from Ohio to Ontario?

    Most travelers choose Detroit Metropolitan Wayne County - Ontario, Cleveland Hopkins Intl - Ontario or Cincinnati Cinci./N. Kentucky - Ontario when deciding on the best route from Ohio to Ontario.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Ohio to Ontario (average of $106). Flying from Ohio to Ontario in April is currently the most expensive (average of $166). 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 Ohio to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ohio to Ontario

Discover the top 5 airlines that operate flights from Ohio 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 December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$258FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$228Average$428FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$428FlexibilityNo cancel feeOn-time71%
DeltaCheapest$254Average$393FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$279Average$439FlexibilityNo cancel feeOn-time63%

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