ONT - CLE

$135 Find Cheap Flights from Ontario to Cleveland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Cleveland departing on 7/16. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Cleveland

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

Cheap Flights from Ontario to Cleveland (ONT-CLE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Cleveland 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Cleveland

Mon, Jul 28 - Tue, Aug 12
Frontier Logo
12:59 am - 11:00 amONT-CLE
7h 01m1 stop
Frontier Logo
8:01 pm - 11:50 pmCLE-ONT
6h 49m1 stop
$256Frontier
Find Deal
Wed, Aug 13 - Mon, Aug 18
Frontier Logo
12:59 am - 11:00 amONT-CLE
7h 01m1 stop
Frontier Logo
7:50 pm - 11:50 pmCLE-ONT
7h 00m1 stop
$263Frontier
Find Deal
Wed, Aug 6 - Tue, Aug 12
Frontier Logo
12:59 am - 11:00 amONT-CLE
7h 01m1 stop
Frontier Logo
8:01 pm - 11:50 pmCLE-ONT
6h 49m1 stop
$266Frontier
Find Deal
Tue, Oct 21 - Sat, Oct 25
United Airlines Logo
7:02 am - 4:59 pmONT-CLE
6h 57m1 stop
United Airlines Logo
8:45 am - 12:51 pmCLE-ONT
7h 06m1 stop
$284United Airlines
Find Deal
Sat, Sep 6 - Mon, Sep 8
American Airlines Logo
12:46 pm - 11:37 pmONT-CLE
7h 51m1 stop
American Airlines Logo
4:34 pm - 9:24 pmCLE-ONT
7h 50m1 stop
$293American Airlines
Find Deal
Tue, Oct 21 - Sat, Oct 25
American Airlines Logo
10:55 am - 8:11 pmONT-CLE
6h 16m1 stop
American Airlines Logo
3:47 pm - 9:40 pmCLE-ONT
8h 53m2 stops
$294American Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 12
Delta Logo
7:05 am - 5:03 pmONT-CLE
6h 58m1 stop
Delta Logo
7:35 am - 12:14 pmCLE-ONT
7h 39m1 stop
$297Delta
Find Deal
Wed, Aug 6 - Mon, Aug 11
Delta Logo
7:05 am - 8:52 pmONT-CLE
10h 47m2 stops
Delta Logo
4:33 pm - 10:20 pmCLE-ONT
8h 47m1 stop
$302Delta
Find Deal
Tue, Jul 29 - Tue, Aug 12
Southwest Logo
1:00 pm - 10:15 pmONT-CLE
6h 15m1 stop
Southwest Logo
5:35 am - 11:35 amCLE-ONT
9h 00m1 stop
$334Southwest
Find Deal
Tue, Jul 29 - Tue, Aug 12
Southwest Logo
6:20 am - 6:35 pmONT-CLE
9h 15m2 stops
Southwest Logo
5:35 am - 11:35 amCLE-ONT
9h 00m1 stop
$339Southwest
Find Deal
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KAYAK's insights & trends for Ontario to Cleveland flights

Get data-powered insights and trends into flights from Ontario to Cleveland 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 Ontario to Cleveland?

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

Your flight ticket price will generally be cheaper if you fly to Cleveland on a Monday and more expensive on a Sunday. On your return trip to Ontario, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Cleveland, 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 Ontario to Cleveland is May, where tickets cost $239 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $501 and $466 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Cleveland, 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 Ontario to Cleveland, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$135
Best time to beat the crowds but there is an average 38% increase in price.
Most popular time to fly and prices are also 34% lower on average.
Flight from Ontario to Cleveland

When to book flights from Ontario to Cleveland

Are your dates flexible? Find out the best times to travel from Ontario to Cleveland 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 Ontario to Cleveland

  • What is the cheapest flight from Ontario to Cleveland?

    In the last 3 days, the lowest price for a flight from Ontario to Cleveland was $135 for a one-way ticket and $256 for a round-trip.

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

    No, a passport isn't needed to fly from Ontario to Cleveland. However, local authorities might ask for an official ID.

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

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

  • Which airline alliances offer flights from Ontario to Cleveland?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Cleveland are Southwest and Delta. With an average price for the route of $491 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 $718 and an overall rating of 8.0.

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

    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 Ontario to Cleveland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cleveland from Ontario 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 Ontario to Cleveland?

    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 Cleveland with an airline and back to Ontario with another airline. Booking your flights between Ontario and CLE 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 Ontario to Cleveland?

    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 Cleveland from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 5 airlines serving from Ontario to Cleveland

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Cleveland. 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 Ontario to Cleveland? 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 4287 reviews
7.1Food
8.0Comfort
7.6Entertainment
8.2Boarding
8.6Crew
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!

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

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

I had a wonderful flight, but the only thing that annoyed me was how crowded TSA was. I still believe airports and all planes work together to bunch everyone together to drive up cost.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

Delayed in taking off because no flight crew. The in seat entertainment was working properly.

The WiFi has been awful on my last few Delta Air Lines flights.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

The first flight was better in terms of the aircraft.

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Eventless. It was a good flight and good crew. Can’t complaint.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

We were delayed Al ost / hours after boarding so that maintenance had to add oil to the engines. Then the oil they grabbed had been left out in the Dallas record cold and was frozen. They had to go back to the hanger and grab some that was not frozen.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

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

The check in process was a mess for no reason. I spent an hour waiting in line trying to get them to print my boarding pass and as a result I missed my flight.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

Everything you need to know for your flight from Ontario to Cleveland

Information on your arrival and departure airports

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