$26 Find Cheap Flights from Ontario to Arizona

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 Arizona departing on 9/10. 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 Arizona

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

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Tucson
Tucson1 stop$160
Flagstaff
Flagstaff1 stop$286
Las Vegas
Las Vegasnonstop$46
Tucson
Tucson1 stop$160
Flagstaff
Flagstaff1 stop$286
Las Vegas
Las Vegasnonstop$46

Book Cheap Ontario to Arizona Plane Tickets

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

Recent round-trip flight deals from Ontario to Arizona

Sat, Sep 6 - Sat, Sep 6
Frontier Logo
8:00 am - 9:11 amONT-LAS
1h 11mnonstop
Frontier Logo
11:27 am - 12:43 pmLAS-ONT
1h 16mnonstop
$46Frontier
Find Deal
Sat, Sep 6 - Sat, Sep 6
Frontier Logo
8:00 am - 9:11 amONT-LAS
1h 11mnonstop
Frontier Logo
11:27 am - 12:43 pmLAS-ONT
1h 16mnonstop
$47Frontier
Find Deal
Tue, Sep 9 - Tue, Sep 16
Southwest Logo
3:35 pm - 4:55 pmONT-PHX
1h 20mnonstop
Southwest Logo
3:35 pm - 4:45 pmPHX-ONT
1h 10mnonstop
$77Southwest
Find Deal
Sat, Sep 6 - Tue, Sep 9
Southwest Logo
3:15 pm - 4:20 pmONT-LAS
1h 05mnonstop
Southwest Logo
9:00 am - 10:10 amLAS-ONT
1h 10mnonstop
$77Southwest
Find Deal
Tue, Sep 9 - Tue, Sep 16
American Airlines Logo
6:10 am - 7:27 amONT-PHX
1h 17mnonstop
American Airlines Logo
4:58 pm - 6:16 pmPHX-ONT
1h 18mnonstop
$91American Airlines
Find Deal
Fri, Sep 26 - Sat, Sep 27
American Airlines Logo
4:45 pm - 6:12 pmONT-PHX
1h 27mnonstop
American Airlines Logo
8:04 am - 9:21 amPHX-ONT
1h 17mnonstop
$121American Airlines
Find Deal
Tue, Oct 7 - Wed, Oct 15
Delta Logo
4:35 pm - 9:25 pmONT-TUS
4h 50m1 stop
Delta Logo
4:47 pm - 11:39 pmTUS-ONT
6h 52m1 stop
$197Delta
Find Deal
Tue, Oct 7 - Thu, Oct 9
Delta Logo
11:48 am - 9:25 pmONT-TUS
9h 37m2 stops
Delta Logo
4:47 pm - 11:39 pmTUS-ONT
6h 52m1 stop
$202Delta
Find Deal
Thu, Sep 4 - Wed, Oct 8
United Airlines Logo
1:15 pm - 8:18 pmONT-TUS
7h 03m1 stop
United Airlines Logo
7:15 am - 12:13 pmTUS-ONT
4h 58m1 stop
$287United Airlines
Find Deal
Sat, Feb 7 - Tue, Mar 31
United Airlines Logo
1:00 pm - 9:42 pmONT-TUS
7h 42m1 stop
United Airlines Logo
7:00 am - 12:33 pmTUS-ONT
5h 33m1 stop
$342United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Arizona flights

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

What is the cheapest Ontario to Arizona flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Arizona from Ontario found in the last 72 hours was to Phoenix, at $153 round-trip. The most popular route is from Ontario (ONT) to Phoenix Sky Harbor Intl Airport (PHX), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $153.

Can I save money by flying with a layover from Ontario to Arizona?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $363, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Arizona, 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 Arizona is August, when tickets cost $198 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $299 and $299 respectively.

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

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

If your flying dates are flexible, you should consider flying to Arizona on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Ontario to Arizona. For your return ticket, we recommend flying on a Saturday and avoiding Mondays for the best deals.

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

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 Arizona, 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 Arizona, you should book around 4 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$26
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Ontario to Las Vegas

FAQs - booking Arizona flights

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

    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 Arizona.

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

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

    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 from Ontario to Arizona with an airline and back with another airline.

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

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

  • What is the cheapest time of day to fly to Arizona?

    The cheapest time of day to fly to Arizona is generally in the afternoon, when round-trip flights cost $387 on average. Morning departures are around 3% more expensive than evening flights, on average. The most expensive time of day to fly to Arizona is generally in the morning, which is peak travel time and where the average cost of a ticket is $415.

Top tips for finding cheap flights to Arizona

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Las Vegas $71 one-way - $91 round-trip; Phoenix $140 one-way - $288 round-trip

Reviews of the top 3 airlines serving from Ontario to Arizona

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Arizona. 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 Arizona? 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 4244 reviews
8.6Crew
7.5Entertainment
7.0Food
8.1Boarding
8.0Comfort
Airline reviews

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

10.0 ExcellentJoseph, Aug 2025SFO - BWI
Read more Southwest reviews

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

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

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

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

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.

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I miss the screens they used to have for the long flights. I use a Kendal and it doesn’t work well with there WiFi. I tried my cell and the wifi was not good for it either this is the free wifi.

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

Took off on time and successfully avoided weather that looked to be a problem along the way

Very friendly and efficient and smooth boarding. We were even way early arriving at my destination. Thank you.

The trip was very smooth and they provided great customer service

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!

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

Flight was delayed one hour. Notification to the crowd waiting near the gate was terrible…announcements were unclear and very hard to hear and therefore understand. Frontier does NOT send texts to notify, only email. The reader board over the gate itself was NEVER updated to indicate the gate had been changed. It’s like a bunch of children are running things.

We’ve all seen the YouTube vids of out of control passengers. But this was an instance of a highly aggressive, bully flight attendant. Yelling in the face of a vet with PTSD who was texting their family. And no , we had not yet been instructed to put our phones in airplane mode. My suggestion is that you should pay whatever difference there is in order to avoid Frontier airlines. Additionally, after 3hrs trying to get customer service frontier offered a $25 voucher. I declined. This experience was so traumatic. To be verbally assaulted and abused by a flight attendant that has the power to say “boo” and I miss my flight ( which was to a family member’s funeral ). Frontier is unsafe and I cannot impress enough how much I discourage anyone ( esp those with any kind of disability like PTSD ) flying on Frontier.

We had to wait in line over an hour just to check our bags. It's a good thing we were so early to the airport. Only one clerk was working and the line was around the corner and down the hall. No good. I felt bad for her. Not sure how she kept her sanity with all the upset people. Then we get to our gate and there is no seating. Everyone was standing. Then I realize it is not a gate at all, we still have to be shuttled to our airplane. Ugh. Then we were late taking off and missed a window of opportunity before the airport runways were shut down for some reason. (not frontier's fault the runway shut down.) The seats on the airline are crammed and there is no cushion. Never had a tighter seating arrangement while flying. My 6' 4" husband was absolutely miserable the whole time with knees digging in to the seat in front of him. You think you are getting a good deal on a ticket, and then wham! I had to pay 75 dollars for our checked bags and 75 dollars for a carry on. No other airline does that!!! And also, there is a 40 pound weight limit on checked bags... Would have been cheaper flying with another airline, and I would have at least gotten a snack and drink. Was thankful for the tiny cup of water at least.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

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….

i was denied boarding, even though i had an assigned seat, checked in on line and was at airport early. Then they refused to fully refund the the fair and replacement fair because they claimed it was "no show/denied boarding". I will never fly this airline again

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

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

Information on your arrival and departure airports

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