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Find Business Class Flights to Ontario - Compare and Save

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Cheap Business Class Flight Deals to Ontario

 
These are the cheapest deals for flights from the United States to Ontario currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. 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 business class round-trip flight deals to Ontario

Wed, Oct 21 - Wed, Oct 28
Frontier Logo
11:15 am - 2:03 pm
SEA
-
ONT
2h 48mnonstop
Frontier Logo
5:05 pm - 8:01 pm
ONT
-
SEA
2h 56mnonstop
$386Frontier
Sat, Sep 5 - Tue, Sep 8
Frontier Logo
8:56 pm - 8:03 am
SFO
-
ONT
11h 07m
1 stop
Frontier Logo
3:13 pm - 4:40 pm
ONT
-
SFO
1h 27mnonstop
$403Frontier
Thu, Aug 27 - Sat, Sep 5
Frontier Logo
11:54 am - 2:45 pm
SEA
-
ONT
2h 51mnonstop
Frontier Logo
4:49 pm - 7:38 pm
ONT
-
SEA
2h 49mnonstop
$406Frontier
Wed, Aug 19 - Sun, Aug 23
Frontier Logo
10:29 pm - 11:50 pm
DEN
-
ONT
2h 21mnonstop
Frontier Logo
3:40 pm - 9:05 am
ONT
-
DEN
16h 25m
1 stop
$419Frontier
Fri, Sep 25 - Sun, Sep 27
Alaska Airlines Logo
8:23 am - 11:16 am
SEA
-
ONT
2h 53mnonstop
Alaska Airlines Logo
6:02 am - 8:45 am
ONT
-
SEA
2h 43mnonstop
$577Alaska Airlines
Fri, Aug 14 - Wed, Aug 19
Alaska Airlines Logo
8:33 pm - 11:11 pm
SEA
-
ONT
2h 38mnonstop
Alaska Airlines Logo
6:02 am - 8:45 am
ONT
-
SEA
2h 43mnonstop
$602Alaska Airlines
Fri, Sep 4 - Mon, Sep 7
Alaska Airlines Logo
8:43 pm - 11:24 pm
SEA
-
ONT
2h 41mnonstop
Alaska Airlines Logo
6:02 am - 8:45 am
ONT
-
SEA
2h 43mnonstop
$612Alaska Airlines
Wed, Dec 2 - Wed, Jan 6
American Airlines Logo
6:00 am - 9:54 am
IAH
-
ONT
5h 54m
1 stop
American Airlines Logo
7:16 am - 5:05 pm
ONT
-
IAH
7h 49m
1 stop
$771American Airlines
Wed, Dec 2 - Fri, Jan 1
American Airlines Logo
5:00 am - 9:54 am
IAH
-
ONT
6h 54m
1 stop
American Airlines Logo
11:59 pm - 8:37 am
ONT
-
IAH
6h 38m
1 stop
$797American Airlines
Tue, Dec 1 - Thu, Jan 7
American Airlines Logo
2:30 pm - 6:20 pm
IAH
-
ONT
5h 50m
1 stop
American Airlines Logo
6:00 am - 1:52 pm
ONT
-
IAH
5h 52m
1 stop
$815American Airlines

When to book business class flights to Ontario

Are your dates flexible? We break down the daily and monthly prices for business class flights to Ontario, so you can find the best time to fly.
Average price per month
To calculate monthly average prices, KAYAK takes all prices for each month over the last year for business class flights to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all the values for each month.
Flight prices as travel date approaches
To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for business class flights to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.

FAQs for Ontario business class flights

  • How long is a flight to Ontario?

    Flights from Oakland1h 20m
    Flights from Las Vegas1h 08m
    Flights from New York John F Kennedy Intl Airport5h 43m
    Flights from Portland2h 24m
    Flights from Sacramento1h 21m
  • What is the most popular airline offering Business Class flights to Ontario?

    Among KAYAK users, American Airlines is the most popular airline offering Business Class seats on flights to Ontario.

  • Which airlines offer Business Class tickets on flights to Ontario?

    Traveling to Ontario and want to offer yourself a Business Class experience? Depending on the origin, the following airlines offer seats in Business Class: American Airlines, Alaska Airlines and Frontier.

  • How does KAYAK find such good deals on Business Class tickets to Ontario?

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

  • What is the best airline for business class flights to Ontario?

    The highest-rated airline by KAYAK users offering business class flights to Ontario is Southwest, with an overall rating of 8.0.

Top tips for finding business class flights to Ontario

  • Try flying direct if you’re looking to save, as direct business class tickets are cheaper on average.

Reviews of the top 5 airlines flying to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United States to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly business class 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 4242 reviews
8.1Boarding
7.0Food
8.6Crew
7.5Entertainment
8.0Comfort
Airline reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

2.0 MediocreIrene, Jun 2026
DEN - SFO
Read more Southwest reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

The flight in it self was good. The delays looking for pilots was unexpected.

Flight delayed due to ground hold. Republic airways did a great job.

Flight attendant was very poor in taking care or showing attention. I slept up front for a few and missed the snacks. She saw me many times, went by me many times and never once asked if I needed anything. The whole 2 hours flight. And this is to a Diamond member in first.

The team was wonderful. The entertainment screens were not working, so they recommended that we use the plane wifi to watch entertainment on our phones and none of the Delta entertainment links worked. Extremely frustrating process.

My service light was on 15 minutes before I had to get up and find a glass of ice. And I was in business class. The meals were not for either my wife and I. She did not eat the entire 10 hour flight and I managed a bowl of soup. I was expecting much more from business with what we paid.

My business class seat was inoperable and unable to recline for 10 hour flight.

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

Landed without a gate ready. Plane is extremely old and dirty.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

The tray table was broken and the food was terrible.

Awful - both legs. The check in was awful, getting on the plane required walking down a spiral staircase (dangerous), then taking a bus about 5 miles out from the terminal. The seat was broken (I was in business), there was no internet during the flight (both legs). The aircraft was very old. I saw rust in some place, tape holding things up in the bathroom. This was an unacceptable experience for such a long haul flight.

Flight cancelled instead of leaving Friday am now, maybe, leaving Sunday

Check in was chaotic with only one counter for business class and first class. The luggage conveyor belt at JFK airport was broken so the flight departure was delayed which made the flight stressful as I had a tight connection. Although the captain said they could make up the delay, they didn’t do so.

Lost of requested seat assignments. Lost my husband's meal choice

Staff were not attentive, wifi did not work, cut my head in the bathroom due to the position of the soap on the sink, had blood running down my face, told staff, they had no expression no sympathy, didn't even say "sorry", they said "oh we will have a look at that" about 10 mins later the purser brought me a bandaid, still no sorry.... Shocking

My food prefer was confirmed by email 2x and still the crew claim they had no pre-order. I taken ill while in India so I needed to avoid Indian sauces and spices, so the problem with the preorder was unacceptable. Additionally, is there a new rule to automatically not to disturb passengers? I would like this as an option. Lastly, for breakfast I needed to avoid Indian and I’m allergic to eggs.. therefore the only option was pancakes and guess what was not available!!!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

Food and drink service was very low quality. The flight attendants in business class must have been short some staff. Service was sluggish and not much English was spoken

Flight to Japan was was better across the board than the return to USA. Entertainment: Movie selection was old and not to my liking. Way too many woke choices. Not enough selections for sports or drama. Service: some of the crew were great. Not all. I paid for business class. a premium. Some of the crew thought they 'had' t do there job instead of wanting to serve and be polite. Food: Way to Japan was good. Way back to USA bad. Boarding: Wat out did not offer Business only; had to go thru general. If you pay for business, you should get business perks. Suggest you look for other than United for travel to Asia

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Mechanical delay > Crew Time out. No communication to passengers. Crew time out was positioned as a surprise (even though it must have been know at the time of boarding that the crew would time out.

I could not ask for more. Great service and experience.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Amazing I love American. I’ll never fly anyone else if I can help it.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

I really didn't like anything. Paid for my checked luggage online ($79) and then was told that I would have to paid another $79 for my carry on. Was not allowed to enter the terminal until 3 hours before my flight and when I finally was allowed to check my bag and enter, my flight was delayed 3 times. When I finally landed, we were all instructed to "run off the plane" as they had to do a quick turn around to Las Vegas. Me and several of my flying companions will never fly Frontier again.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

Everything you need to know for your flight to Ontario

Information on your arrival and departure airports