CLE - ONT

$98 Find Cheap Flights from Cleveland to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cleveland to Ontario departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cleveland to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cleveland to Ontario, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Cleveland to Ontario (CLE-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Cleveland to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Cleveland to Ontario

KAYAK's recommended round-trip deals from the most popular airlines that fly from Cleveland to Ontario.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
8:30 am - 12:08 pmCLE-ONT
6h 38m1 stop
Frontier Logo
12:59 am - 11:05 amONT-CLE
7h 06m1 stop
$196Frontier
Find Deal
Wed, May 14 - Mon, Jun 9
Frontier Logo
8:30 am - 12:08 pmCLE-ONT
6h 38m1 stop
Frontier Logo
12:59 am - 11:03 amONT-CLE
7h 04m1 stop
$198Frontier
Find Deal
Tue, May 13 - Mon, May 19
Frontier Logo
7:30 am - 8:51 pmCLE-ONT
16h 21m1 stop
Frontier Logo
12:59 am - 11:05 amONT-CLE
7h 06m1 stop
$201Frontier
Find Deal
Sat, Jun 7 - Mon, Jun 9
Delta Logo
6:00 am - 10:38 amCLE-ONT
7h 38m1 stop
Delta Logo
10:05 pm - 9:11 amONT-CLE
8h 06m1 stop
$307Delta
Find Deal
Tue, Jun 17 - Tue, Jun 17
Delta Logo
5:30 am - 12:17 pmCLE-ONT
9h 47m2 stops
Delta Logo
10:05 pm - 9:11 amONT-CLE
8h 06m1 stop
$312Delta
Find Deal
Tue, Jun 17 - Tue, Jun 17
American Airlines Logo
5:30 am - 11:50 amCLE-ONT
9h 20m2 stops
American Airlines Logo
12:55 pm - 12:39 amONT-CLE
8h 44m2 stops
$317American Airlines
Find Deal
Tue, Jun 3 - Wed, Jun 11
American Airlines Logo
5:38 pm - 11:43 pmCLE-ONT
9h 05m1 stop
American Airlines Logo
12:59 am - 1:35 pmONT-CLE
9h 36m1 stop
$325American Airlines
Find Deal
Wed, Jun 4 - Fri, Jun 6
United Airlines Logo
6:19 pm - 10:30 pmCLE-ONT
7h 11m1 stop
United Airlines Logo
7:00 am - 4:59 pmONT-CLE
6h 59m1 stop
$418United Airlines
Find Deal
Wed, Oct 1 - Sat, Oct 4
United Airlines Logo
7:00 am - 2:25 pmCLE-ONT
10h 25m1 stop
United Airlines Logo
6:08 am - 6:33 pmONT-CLE
9h 25m1 stop
$427United Airlines
Find Deal
Tue, May 13 - Tue, May 20
Southwest Logo
8:30 am - 3:25 pmCLE-ONT
9h 55m2 stops
Southwest Logo
10:45 am - 11:00 pmONT-CLE
9h 15m2 stops
$517Southwest
Find Deal
Fri, Jun 20 - Mon, Jun 23
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KAYAK's insights & trends for Cleveland to Ontario flights

Get data-powered insights and trends into flights from Cleveland to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Cleveland to Ontario?

The average price of all round-trip flights from Cleveland to Ontario clicked on KAYAK for each day over the last 12 months.

When flying from Cleveland to Ontario, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Cleveland, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cleveland to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Cleveland to Ontario is June, where tickets cost $288 (return) on average. On the other hand, the most expensive months are November and April, where the average cost of round-trip tickets is $421 and $395 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Cleveland to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Cleveland to Ontario, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonFebruary
High seasonMay
Cheapest flight$98
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Cleveland to Ontario

When to book flights from Cleveland to Ontario

Are your dates flexible? Find out the best times to travel from Cleveland to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Cleveland to Ontario

  • What is the cheapest flight from Cleveland to Ontario?

    In the last 3 days, the lowest price for a flight from Cleveland to Ontario was $98 for a one-way ticket and $196 for a round-trip.

  • Do I need a passport to fly between Cleveland and Ontario?

    A passport is not required to fly from Cleveland to Ontario.

  • Which airports will I be using when flying from Cleveland to Ontario?

    On your way to Ontario, you’ll fly out from Cleveland Hopkins Intl. You’ll be landing at Ontario.

  • Which aircraft models fly most regularly from Cleveland to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Cleveland to Ontario?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Cleveland and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Cleveland to Ontario, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Cleveland to Ontario are Southwest and Delta. With an average price for the route of $456 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $372 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Cleveland to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cleveland to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cleveland to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Cleveland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cleveland to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Cleveland with another airline. Booking your flights between Cleveland and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cleveland to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Cleveland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 5 airlines serving from Cleveland to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Cleveland to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cleveland to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4294 reviews
8.2Boarding
8.6Crew
7.1Food
7.6Entertainment
8.0Comfort
Airline reviews

It was a perfect flight in all aspects! Both legs!

10.0 ExcellentAnonymous, Apr 2025LGB - SMF
Read more Southwest reviews

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Everything was great except the food. The pretzels are really crappy.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

I will be flying again Southwest Airlines. Friendly crew, comfortable and affordable.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

Rough day of travel all the way around. Wrong info given to us multiple times and mistakes in their booking making our trip 10 hours longer than planned. I’m bummed because I fly Delta all the time and love them. Mistakes happen. Just bummed that this was a rare trip our whole family was traveling together.

A bit rush for transit. Food and entertainment are not available

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Boarding always seems a bit chaotic. Seat spacing could leave more for leg room.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

We arrived early and finally made it to our gate almost an hour after.

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

The service and food needs to improve to catch up with other international flights

Would have been good to have a meal since it was a 5.5 hour flight

We boarded after several delays due to mechanical failure and a gate change. The seat cushion in the exit row was very compressed and offered no cushion, making the four-hour journey reasonably uncomfortable. The WiFi worked for a few people, but for most, it did not, and you cannot get entertainment unless you can connect—American Airlines flights do not have seatback screens, and you must use your mobile phone.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

I chose the seats when booked the flight and paid for them. However after checking in I found we were assigned different seats!

Everything went as planned. Crew was great. Seats were still not that comfortable.

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

The plane was clean, the crew was friendly and helpful. It’s a low cost airline so there was no food, drinks or in flight entertainment but we didn’t expect any of these things. In the room for improvement department, they should install USB ports in seats to charge mobile devices.

I was surprised that all baggage, including carry on, were charged. Each additional bag went up in cost. Really disappointed in the additional costs.

Charges unexpected. For seat that didnt recline. Please reverse extra seat and carryon charge. Bad business that is a bait and switch.

I couldn’t check in because the app didn’t work. It took 3 Frontier employees at the counter to get me checked in. Flight left 3 hours after departure time

Stop changing gates at sfo. When you are elderly going back for it’s not fun.

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