$29 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 3/14. 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, 0 bags

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Arizona

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Tucson
Tucson1 stop$129
Flagstaff
Flagstaff1 stop$336
Las Vegas
Las Vegasnonstop$59
Tucson
Tucson1 stop$129
Flagstaff
Flagstaff1 stop$336
Las Vegas
Las Vegasnonstop$59

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.

Recent round-trip flight deals from Ontario to Arizona

Thu, Mar 5 - Mon, Mar 9
Frontier Logo
3:24 pm - 4:36 pm
ONT
-
LAS
1h 12mnonstop
Frontier Logo
2:28 pm - 3:37 pm
LAS
-
ONT
1h 09mnonstop
$59Frontier
Wed, Mar 11 - Thu, Mar 12
Frontier Logo
2:23 pm - 3:37 pm
ONT
-
LAS
1h 14mnonstop
Frontier Logo
12:00 pm - 1:11 pm
LAS
-
ONT
1h 11mnonstop
$60Frontier
Thu, Apr 16 - Mon, Apr 20
Frontier Logo
8:59 pm - 10:08 pm
ONT
-
LAS
1h 09mnonstop
Frontier Logo
6:59 pm - 8:04 pm
LAS
-
ONT
1h 05mnonstop
$61Frontier
Sun, Apr 19 - Wed, Apr 22
Frontier Logo
11:44 am - 12:59 pm
ONT
-
LAS
1h 15mnonstop
Frontier Logo
12:30 pm - 1:40 pm
LAS
-
ONT
1h 10mnonstop
$65Frontier
Mon, Apr 27 - Thu, Apr 30
Frontier Logo
8:59 pm - 10:08 pm
ONT
-
LAS
1h 09mnonstop
Frontier Logo
6:59 pm - 8:04 pm
LAS
-
ONT
1h 05mnonstop
$67Frontier
Sat, Mar 28 - Tue, Mar 31
Southwest Logo
4:35 pm - 10:35 pm
ONT
-
PHX
6h 00m
1 stop
Southwest Logo
4:25 pm - 10:15 pm
PHX
-
ONT
5h 50m
2 stops
$145Southwest
Wed, Mar 25 - Wed, Apr 1
Multiple Airlines Logo
2:23 pm - 8:18 pm
ONT
-
PHX
5h 55m
1 stop
Multiple Airlines Logo
12:18 pm - 9:00 pm
PHX
-
ONT
8h 42m
2 stops
$151Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
3:24 pm - 10:43 pm
ONT
-
PHX
6h 19m
1 stop
Multiple Airlines Logo
6:30 am - 1:11 pm
PHX
-
ONT
7h 41m
2 stops
$154Multiple Airlines
Mon, Mar 9 - Wed, Apr 8
American Airlines Logo
5:02 pm - 11:07 pm
ONT
-
FLG
6h 05m
1 stop
American Airlines Logo
11:41 am - 4:22 pm
FLG
-
ONT
4h 41m
1 stop
$336American Airlines
Fri, Mar 13 - Fri, Mar 20
American Airlines Logo
7:59 pm - 11:07 pm
ONT
-
FLG
3h 08m
1 stop
American Airlines Logo
4:50 pm - 10:07 pm
FLG
-
ONT
5h 17m
1 stop
$386American Airlines
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 $211 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 $211.

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 $288, 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 September, when tickets cost $151 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $319 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 Tuesday, 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 Wednesday and avoiding Sundays 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 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$29
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 4% 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 $352 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to Arizona is generally at night, which is peak travel time and where the average cost of a ticket is $412.

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 $95 one-way - $95 round-trip; Phoenix $186 one-way - $310 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 4280 reviews
8.0Comfort
7.0Food
8.1Boarding
7.5Entertainment
8.6Crew
Airline reviews

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

2.0 MediocreDavid, Feb 2026
SAN - LAS
Read more Southwest reviews

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

It would be nice to have some low carb options in the snacks.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

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

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

Boarding was organized and timely. Food was mediocre, especially for first class travel.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

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.

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

Information on your arrival and departure airports