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ONT - PHX

Find cheap flights from Ontario to Phoenix Sky Harbor Airport from $25

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 Phoenix departing on 4/20. 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
0 bags
Sat 4/27
Sat 5/4

Search hundreds of travel sites at once for deals on flights to Phoenix Sky Harbor Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Phoenix, 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 Phoenix, as well as popular online travel agencies
In the last 7 days travelers have searched 46,342,885 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to Phoenix

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Phoenix 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 and deals for you by selecting your travel dates.
Choose your dates
8:48 pm - 10:08 pmONT-PHX
1h 20mnonstop
1:26 pm - 2:46 pmPHX-ONT
1h 20mnonstop
$48Frontier
Find Deal
Tue, Apr 16 - Wed, Apr 17
3:36 pm - 4:56 pmONT-PHX
1h 20mnonstop
1:26 pm - 2:46 pmPHX-ONT
1h 20mnonstop
$53Frontier
Find Deal
Wed, Apr 10 - Wed, Apr 17
10:50 pm - 12:16 amONT-PHX
1h 26mnonstop
8:50 pm - 10:09 pmPHX-ONT
1h 19mnonstop
$58Frontier
Find Deal
Wed, Apr 24 - Sun, Apr 28
10:57 pm - 12:23 amONT-PHX
1h 26mnonstop
8:36 pm - 9:55 pmPHX-ONT
1h 19mnonstop
$59Frontier
Find Deal
Sat, Apr 20 - Mon, Apr 22
3:36 pm - 4:56 pmONT-PHX
1h 20mnonstop
8:50 pm - 10:09 pmPHX-ONT
1h 19mnonstop
$63Frontier
Find Deal
Wed, Apr 17 - Sun, Apr 21
10:29 pm - 11:55 pmONT-PHX
1h 26mnonstop
8:50 pm - 10:09 pmPHX-ONT
1h 19mnonstop
$68Frontier
Find Deal
Fri, Apr 26 - Sun, Apr 28
5:40 pm - 7:03 pmONT-PHX
1h 23mnonstop
2:45 pm - 3:58 pmPHX-ONT
1h 13mnonstop
$69Frontier
Find Deal
Tue, Jun 25 - Sat, Jun 29
10:56 pm - 12:22 amONT-PHX
1h 26mnonstop
1:26 pm - 2:46 pmPHX-ONT
1h 20mnonstop
$70Frontier
Find Deal
Mon, Apr 15 - Wed, Apr 17
9:55 pm - 10:23 amONT-PHX
12h 28m1 stop
1:45 pm - 3:06 pmPHX-ONT
1h 21mnonstop
Mon, Apr 8 - Tue, Apr 9
10:59 pm - 10:35 amONT-PHX
11h 36m1 stop
3:40 pm - 4:59 pmPHX-ONT
1h 19mnonstop
Fri, Apr 26 - Sat, Apr 27

Flights from Ontario to Phoenix - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Phoenix 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 Phoenix Sky Harbor Airport?

The average price of all flights from Ontario to Phoenix Sky Harbor Intl Airport clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Phoenix Sky Harbor Airport 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 Phoenix Sky Harbor Airport. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

What is the cheapest month to fly from Ontario to Phoenix Sky Harbor Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Phoenix Sky Harbor Intl Airport, 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 Phoenix Sky Harbor Intl Airport is January, where tickets cost $177 on average. On the other hand, the most expensive months are March and May, where the average cost of tickets is $259 and $233 respectively.

How far in advance should I book a flight from Ontario to Phoenix Sky Harbor Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Phoenix Sky Harbor Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Phoenix Sky Harbor Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 36 days before departure.

Which airlines fly most frequently between Ontario and Phoenix Sky Harbor Airport?

The airlines most regularly connecting Ontario to Phoenix Sky Harbor Airport are Southwest (8 flights per day), American Airlines (3 flights per day), and Frontier (one flight per day).

Which airlines fly non-stop between Ontario and Phoenix Sky Harbor Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Ontario to Phoenix Sky Harbor Intl Airport.
There are 3 airlines that fly nonstop from Ontario to Phoenix Sky Harbor Intl Airport. They are: American Airlines, Frontier and Southwest. The cheapest price of all airlines flying this route was found with Frontier at $38 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between Ontario and Phoenix Sky Harbor Intl Airport per day?

Each day, there are between 10 and 16 nonstop flights that take off from Ontario and land in Phoenix Sky Harbor Intl Airport, with an average flight time of 1h 15m. The most common departure time is 6:00 pm and most flights take off in the morning. Each week, there are 94 flights. The most frequent day of departure is Monday, when 17% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between Ontario and Phoenix Sky Harbor Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Ontario to Phoenix Sky Harbor Airport take?

The duration of a nonstop flight to Phoenix Sky Harbor Airport from Ontario is typically 1h 20m. The journey crosses a distance of 324 miles.

What’s the earliest departure time from Ontario to Phoenix Sky Harbor Airport?

Early birds can take the earliest flight from Ontario at 5:25 am and will be landing in Phoenix Sky Harbor Intl Airport at 6:35 am.

What’s the latest departure time from Ontario to Phoenix Sky Harbor Airport?

If you prefer to fly at night, the latest flight from Ontario to Phoenix Sky Harbor Intl Airport jets off at 10:59 pm and lands at 12:25 am.

Good to know

Low season

July

High season

October

Cheapest flight

$25
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Ontario to Phoenix Sky Harbor Airport

When to book flights from Ontario to Phoenix

Are your dates flexible? Find out the best times to travel from Ontario to Phoenix 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 Ontario to Phoenix Sky Harbor Airport flights

  • Where can I park my vehicle at Ontario International Airport?

    Depending on how long your visit to Phoenix is, you can leave your car at the long-term Parking Lot 3, located between Lots 2 and 3 near Terminal 2 and 4. It’s the cheapest on-site parking lot suitable for extended stays and overnight parking.

  • Can I leave Ontario International Airport during a flight delay?

    If you’ve gone through TSA security screening, it’s advisable to stay within the terminal unless advised otherwise by the airport staff. Often delays are resolved quickly, plus there are numerous on-site restaurants and cafeterias where you can wait out the delay.

  • Which car rental companies are at Phoenix Sky Harbor Airport?

    Avis, Budget, Dollar, Thrifty, Enterprise, Hertz, National, and Alamo car rental companies. Their desks are at the Rental Car Center within the Phoenix airport building at 1805 E Sky Harbor Circle, between 16th and 24th St, south of Buckeye Road.

  • Is there a pick-up and drop-off zone at Phoenix Sky Harbor Airport?

    Yes. When ready for pick-up, you can wait on the curb outside the arrivals at Terminal 4 or utilize the free Cell Phone Waiting Lots located on the East and West ends of the airport.

  • What is the cheapest flight from Ontario to Phoenix Sky Harbor Intl Airport?

    In the last 3 days, the lowest price for a flight from Ontario to Phoenix Sky Harbor Intl Airport was $25 for a one-way ticket and $48 for a round-trip.

  • Do I need a passport to fly between Ontario and Phoenix Sky Harbor Airport?

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

  • Which airlines offer Wi-Fi service onboard planes from Ontario to Phoenix Sky Harbor Airport?

    American Airlines, JetBlue, Alaska Airlines, Delta, and Finnair offer inflight Wi-Fi service on the Ontario to Phoenix Sky Harbor Airport flight route.

  • Which aircraft models fly most regularly from Ontario to Phoenix Sky Harbor Airport?

    The Airbus A320neo is the aircraft model that flies most regularly on the Ontario to Phoenix Sky Harbor Airport flight route.

  • Which airline alliances offer flights from Ontario to Phoenix Sky Harbor Airport?

    oneworld is the only airline alliance operating flights between Ontario and Phoenix Sky Harbor Airport.

  • On which days can I fly direct from Ontario to Phoenix Sky Harbor Airport?

    There are nonstop flights from Ontario to Phoenix Sky Harbor Airport on a daily basis.

  • Which is the best airline for flights from Ontario to Phoenix, American Airlines or Frontier?

    The two airlines most popular with KAYAK users for flights from Ontario to Phoenix are American Airlines and Frontier. With an average price for the route of $270 and an overall rating of 7.3, American Airlines is the most popular choice. Frontier is also a great choice for the route, with an average price of $110 and an overall rating of 6.3.

  • How does KAYAK find such low prices on flights from Ontario to Phoenix Sky Harbor Airport?

    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 Phoenix Sky Harbor Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix Sky Harbor Airport 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 Phoenix Sky Harbor Airport?

    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 Phoenix Sky Harbor Airport with an airline and back to Ontario with another airline. Booking your flights between Ontario and PHX 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 Phoenix Sky Harbor Airport?

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

See more FAQs

Top tips for finding a cheap flight from ONT to Phoenix Sky Harbor Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $104 or less one-way and $187 or less round-trip.
  • As Southern California’s full-service airport, Ontario International Airport (ONT) is a favorite with business travelers wishing to escape the congestion at LAX airport. It’s also the airport with the newest amenities, such as spacious twin terminals that allow for fast curbside-to-gate transfers. Still, arriving 2h before your scheduled flight is advisable for a seamless check-in process.
  • You’ll be happy to know that Ontario International Airport welcomes traveling pets. They must be confined within their carriers for safety unless they’re at the Pet Relief zones in Terminals 2 near Gate 210 and Terminal 4 near Gate 410. Phoenix Sky Harbor International (PHX) has nine pet relief areas, most notably, the Paw Pad outside T3, Level 1, and the Bone Yard, west of T4, Level 1, just outside of Baggage Claim.
  • If you need a place to wait for your flight to Phoenix, you can do so in the Ontario USO Lounge inside the old terminal 1 administration building in front of Parking Lot F. Available too are ONT’s two new Aspire Premium Lounges in Terminal 2 and 4 that offer passengers a quiet space to relax and recharge before their flight. While admission fees are applicable, the two lounges are open to everyone irrespective of their travel class or airline.
  • Located in Terminal 2, across Gate 207 and Terminal 4 across Gate 407 at ONT are clean and secure nursing rooms for moms who need some privacy to pump or breastfeed. Phoenix Sky Harbor Airport has two Mamava nursing pods and breastfeeding stations located both pre-and post-security in each terminal. You can access the nursing pod with a code from the downloadable Mamava app.
  • While elevators, washrooms, hydration stations, and parking spaces at Ontario airport are accessible, passengers with disabilities are encouraged to communicate their special needs when making airline reservations through KAYAK. With prior reservation, ONT Skycap Company can provide Meet and Assist services to persons needing mobility assistance. There’re self-service wheelchairs available without pre-arrangement at PHX.
See more tips

Prefer to fly non-stop from Ontario to Phoenix Sky Harbor Airport?

Find which airlines fly direct from Ontario to Sky Harbor Intl, which days they fly and book direct flights.

Nonstop departures

Ontario to Phoenix Sky Harbor Intl

Monday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Tuesday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Wednesday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Thursday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Friday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Saturday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Sunday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

See more direct flights

Nonstop returns

Phoenix Sky Harbor Intl to Ontario

Monday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Tuesday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Wednesday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Thursday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Friday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Saturday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

Sunday

American Airlines, British Airways, Frontier, +1 more

American Airlines, British Airways, +2 more

See more direct flights
See more direct flights

Top airlines flying from Ontario to Phoenix

Need help choosing which airline to fly with from Ontario to Phoenix? 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 KAYAK reviews.
7.3
American AirlinesOverall score based on 15181 reviews
76boarding
73overall
72comfort
71entertainment
80crew
66food
Airline reviews

Flight From PHX to CVG was on time, very professional staff

Read more about American Airlines

Flight From PHX to CVG was on time, very professional staff

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

Flight attendants used to be nice to people. And any flight over 5 hours should have some kind of food other than tiny pretzels and one drink comped.

just overall disappointing, not a treat to travel these days....paying for Main Cabin Extra was not worth it.

The usual wait at Columbus once you land to get to an open gate (20 minutes) and then the usual 30 minutes for your luggage to appear.

American airlines put us on a connecting flight that only had 20 min layover. I made it by running down the concorce in Phoenix and was last one on the flight. Not acceptable!!!!!!!!!!!!!!!!!!!!!!!!!!!

Flight from PHL to PHX arrived 50 minutes early and a gate was available. First class flight attendant Stephanie was very friendly and polite. Sanitizing wipes should be provided with meals in addition to refresher towels.

Do a bit better with n first class offer some real food and pillows

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

We experienced an involuntary change of schedule. Had 1st class tickets from Fresno to Bonaire, put us in coach from Miami to Bonaire a few days later - terrible flight, try to get a refreshment , water or a meal and air. We will never be subject to that again. I'd rather fly another airline that honors 1st class. Adding insult to injury AA reimbursed my wife's ticket $106.66 for the change in seating, me nothing. Haven't heard back from Customer Service, don't expect to - it's only online, can't speak with a live person. So the difference between 1st class and coach for that portion of the flight is only $106.66? Really? I've flown Delta and United on the same route, will go back to one of them again.

I hope to avoid flying with them in the future. First flight got cancelled then got stuck with a 13 hour layover in Denver. The process was long and frustrating to many people.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

Terrible. Initially we were shocked by the outrageous baggage fees we needed to pay at check in for our so-called "discounted, economy flight" - we paid over $200 (!!) for one check-in and 2 carry-on bags - this felt like a real bait-and-switch" scam. Our flight from Phoenix to SFO was delayed by 4 hours. Multiple apparent causes (from needing to make space for other planes that were landing late to problem with cabins pressure system, and whatever...). After de-boarding and re-boarding we still waited at least an hour on a cramped, poorly ventilated plane before take-off. Seats were cramped, uncomfortable - did not recline at all. No water until we were flying for a while. No complimentary snacks. Upon arrival at SFO my luggage was sent upstairs to the check-in counter. The customer service person there refused to let me examine a bunch of bags that were sitting on a nearby cart because it was "behind the counter", rather made me wait until another attendant did an exhaustive and failed (?computer) search, came back and told me they were unable to locate my bag. I asked her to look on the cart, lo and behold, there was my bag just a few feet away! Missed my choir rehearsal that evening due to all of the delays. One more thing, a few days later my husband and I tested positive for Covid. Since we both are fully vaccinated, careful about masking and have never had Covid previously, we will never know, but suspect we may have acquired the infection during the prolonged wait on your poorly ventilated plane (person in the row in front of us was coughing). After registering a complaint, we received a measly $50 voucher for future flights. Needless to say we have no intention of flying with Frontier Airlines ever again.

Delayed...attendants checked every single bag and item for sizes before boarding.

Plane was clean but they do not allow bag drop until 1 hour before flight. Just encouraging late fees and other issues. The worst I have experienced. Total hostage situation, pay or you miss your flight.

I dunno. Depressing, uncomfortable (I’m poor), but on time and efficient.

The flight was delayed and I had to cancel because I would have missed my connection and there were no other flights for the next two days. They also lost my bag!!

My first time to fly Frontier and loved it! Boarding was super easy as we only had personal items. Crew was helpful and funny and the plane was clean. Pilot was also great at landing the plane smoothly.

late late late late no accountability no refund no adjustment no reasonable solution

I was scheduled for heart Surgery. Frontier Airlines does not have live phone support everything is thru chat. During my chat I guess I was asking too many questions, and the rep disconnected our session with a "Thank you for choosing Frontier Airlines. I quickly responded for a second time that I was not finished, and he disconnected. All he was capable of was to copy and paste from a script and the website. Never again with the budget airlines. I'll pay one or two hundred dollars more to get better service and experience. Our Taxi driver told us we made a mistake with them He had a client that had his flight canceled 3x and he rented a car and drove back home. Many stories like this if you do a search online.

Book cheap flights from Ontario to Phoenix

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Phoenix found on KAYAK in the last 72 hours.
4/20Sat
nonstopFrontier
1h 26mONT-PHX
$25
4/13Sat
nonstopFrontier
1h 26mONT-PHX
$29
4/22Mon
1 stop
11h 36mONT-PHX
$52
5/29Wed
1 stop
16h 46mONT-PHX
$58
4/13Sat
nonstopAmerican Airlines
1h 14mONT-PHX
$115
4/30Tue
2 stopsAlaska Airlines
9h 53mONT-PHX
$161
4/30Tue
3 stopsSouthwest
11h 15mONT-PHX
$168
4/3Wed
nonstopAmerican Airlines
1h 18mONT-PHX
$211
4/20Sat
2 stopsAlaska Airlines
16h 20mONT-PHX
$212
4/2Tue
nonstopSouthwest
1h 15mONT-PHX
$230

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Last minute flights from Ontario to Phoenix

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Phoenix that are departing in the next 10 days.
4/2Tue
multi-stopFrontier
11h 09mONT-PHX
4/9Tue
nonstopFrontier
1h 21mPHX-ONT
$97
3/29Fri
nonstopFrontier
1h 20mONT-PHX
3/31Sun
nonstopFrontier
1h 21mPHX-ONT
$119
4/2Tue
multi-stop
12h 15mONT-PHX
4/9Tue
multi-stop
7h 28mPHX-ONT
$122
4/2Tue
multi-stop
12h 15mONT-PHX
4/5Fri
multi-stop
11h 05mPHX-ONT
$147
4/2Tue
nonstopAmerican Airlines
1h 18mONT-PHX
4/9Tue
nonstopAmerican Airlines
1h 16mPHX-ONT
$325
3/30Sat
nonstopAmerican Airlines
1h 18mONT-PHX
5/30Thu
nonstopAmerican Airlines
1h 22mPHX-ONT
$484
4/2Tue
multi-stopUnited Airlines
10h 16mONT-PHX
4/3Wed
multi-stopUnited Airlines
15h 39mPHX-ONT
$765
3/31Sun
multi-stopUnited Airlines
17h 30mONT-PHX
4/7Sun
multi-stopUnited Airlines
17h 49mPHX-ONT
$766
4/2Tue
multi-stopAlaska Airlines
17h 38mONT-PHX
4/9Tue
multi-stopAlaska Airlines
10h 37mPHX-ONT
$798
4/2Tue
multi-stopAlaska Airlines
17h 38mONT-PHX
4/9Tue
multi-stopAlaska Airlines
13h 04mPHX-ONT
$818

Search by stops

Search by airline

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Ontario - Phoenix Sky Harbor Airport Flights

Departure:

Ontario (ONT)United States

Destination:

Phoenix Sky Harbor Airport (PHX)United States

Return flight deals:

Phoenix Sky Harbor Airport - Ontario

Cabin classes:

$453
$1,416
$1,288
$63