Cheap flights from Ontario (ONT) to Sky Harbor Intl (PHX) from $29

This is the cheapest one-way flight price, found on 9/28. Prices may vary by date and flight preferences.
ONT — PHX
Oct 3 — Oct 101

How to find the cheapest flight from Ontario (ONT) to Sky Harbor Intl (PHX)

All the information you need to plan the best ONT to PHX flight in 2023: compare Ontario to Sky Harbor Intl flight prices with the expected peak season, weather and rainfall in Sky Harbor Intl.

Popular in

October

Cheapest in

May

Round-trip from

$247

One-way from

$29
High demand for flights, 24% potential price rise
Best time to find cheap flights, 53% potential price drop
From Ontario to Phoenix Sky Harbor Intl
One-way flight from Ontario to Phoenix Sky Harbor Intl

ONT - PHX

Price

$247 - $489

PHX

Temperature

55.4 - 95 °F

PHX

Rainfall

0 - 1.1 inches

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

To save on the cost of your flight from Ontario to Phoenix Sky Harbor Intl Airport, book at least 60 days before your planned departure. Booking around this time can save you about 41% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $217 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $275.

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

Our data shows that January tends to be the cheapest month to fly to Phoenix Sky Harbor Intl Airport from Ontario. Users have commonly found prices around $212 for the month, but tickets can be as low as $117. Due to multiple factors, prepare for potentially higher prices in November.

When is the cheapest time to fly from Ontario to Phoenix Sky Harbor Intl Airport (ONT - PHX)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Phoenix Sky Harbor Intl Airport as you normally would.

Cheap American Airlines flights from Ontario to Sky Harbor Intl

Peruse some of the lowest-priced American Airlines flights we've found from Ontario to Phoenix. It's recommended that users confirm their flight details before booking.

Cheap Frontier flights from Ontario to Sky Harbor Intl

Have a look at some of the cheapest available Frontier flights departing from Ontario and landing in Phoenix. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap Ontario to Sky Harbor Intl flights in September & October 2023

The best prices found for ONT to PHX flights for September, October
These are some of the most attractive deals on flights from Ontario to Phoenix in 2023. Check back soon for alternative fares.

Ontario to Sky Harbor Intl 2023 flight deals

Cheap flights to Sky Harbor Intl from Ontario found for this year
These are some of the most attractive deals on flights from Ontario to Phoenix in 2023. Check back soon for alternative fares.

Non-stop flights to Sky Harbor Intl from Ontario

Save time with Ontario to Sky Harbor Intl direct flight deals
If you're seeking options on non-stop flights from Ontario to Phoenix, check out these fares. Search for alternative flights from Ontario to Phoenix by utilizing the search form above.

Ontario to Sky Harbor Intl flights leaving soon

Late deals on return flights to Sky Harbor Intl from Ontario, departing today and this week
Have a look at some of the last-minute flights available departing from Ontario to Phoenix. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Sky Harbor Intl from Ontario

The cheapest one-way flights from Ontario to Sky Harbor Intl
Some of the best available deals we've found on one-way flights from Ontario to Phoenix. Users can also find round-trip Ontario to Phoenix flights by using the search form above.

Find flights from Ontario to Sky Harbor Intl within your budget

Use the slider to find flights from Ontario to Sky Harbor Intl that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$53 - $157

Route

Depart

Return

Price

OntarioPhoenix Sky Harbor Intl

ONT - PHX

ONTPHX

Ontario

Thu 11/16

Nonstop1h 22m

Phoenix Sky Harbor Intl

Sat 11/18

Nonstop1h 16m

OntarioPhoenix Sky Harbor Intl

ONT - PHX

ONTPHX

Ontario

Sun 11/19

Nonstop1h 19m

Phoenix Sky Harbor Intl

Thu 11/23

Nonstop1h 15m

OntarioPhoenix Sky Harbor Intl

ONT - PHX

ONTPHX

Ontario

Thu 11/16

Nonstop1h 22m

Phoenix Sky Harbor Intl

Sun 11/19

Nonstop1h 17m

OntarioPhoenix Sky Harbor Intl

ONT - PHX

ONTPHX

Ontario

Sat 12/16

Nonstop1h 14m

Phoenix Sky Harbor Intl

Tue 12/19

Nonstop1h 24m

OntarioPhoenix Sky Harbor Intl

ONT - PHX

ONTPHX

Ontario

Fri 12/15

Nonstop1h 14m

Phoenix Sky Harbor Intl

Sat 12/16

Nonstop1h 21m

OntarioPhoenix Sky Harbor Intl

ONT - PHX

ONTPHX

Ontario

Thu 11/9

1 stop6h 55m

Phoenix Sky Harbor Intl

Thu 11/16

Nonstop1h 18m

OntarioPhoenix Sky Harbor Intl

ONT - PHX

ONTPHX

Ontario

Fri 11/17

Nonstop1h 19m

Phoenix Sky Harbor Intl

Sun 11/19

Nonstop1h 17m

OntarioPhoenix Sky Harbor Intl

ONT - PHX

ONTPHX

Ontario

Thu 10/12

1 stop13h 00m

Phoenix Sky Harbor Intl

Mon 10/16

1 stop4h 12m

OntarioPhoenix Sky Harbor Intl

ONT - PHX

ONTPHX

Ontario

Wed 10/25

Nonstop1h 18m

Phoenix Sky Harbor Intl

Wed 11/1

Nonstop1h 16m

Flights are sorted by cheapest first

Deals found on 9/28

Reviews of airlines servicing Sky Harbor Intl

To help decide which airline to fly from Ontario to Phoenix, see what other customers have to say about American Airlines, Frontier and Southwest. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,394 reviews

Crew

8.6

Boarding

8.3

Food

7.2

Comfort

8.0

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Had to cancel my flight. Hopefully since I bought flight insurance, I will be getting a refund! flights were on time and smooth other than that.

Alaska Airlines
8.1
Very good
1,394 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Crew

8.6

Boarding

8.3

Food

7.2

Comfort

8.0

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Had to cancel my flight. Hopefully since I bought flight insurance, I will be getting a refund! flights were on time and smooth other than that.

Southwest
7.6
Good
1,521 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Crew

8.6

Boarding

8.3

Food

7.2

Comfort

8.0

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Had to cancel my flight. Hopefully since I bought flight insurance, I will be getting a refund! flights were on time and smooth other than that.

United Airlines
7.4
Good
1,890 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Crew

8.6

Boarding

8.3

Food

7.2

Comfort

8.0

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Had to cancel my flight. Hopefully since I bought flight insurance, I will be getting a refund! flights were on time and smooth other than that.

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Crew

8.6

Boarding

8.3

Food

7.2

Comfort

8.0

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Had to cancel my flight. Hopefully since I bought flight insurance, I will be getting a refund! flights were on time and smooth other than that.

Volaris
6.5
Okay
532 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Crew

8.6

Boarding

8.3

Food

7.2

Comfort

8.0

Entertainment

7.2

Overall

8.1

Reviews

1 / 10

Had to cancel my flight. Hopefully since I bought flight insurance, I will be getting a refund! flights were on time and smooth other than that.

Related info for your journey

Useful info, stats and facts about Ontario to Sky Harbor Intl flights.

What airport do you fly from for flights from Ontario to Phoenix Sky Harbor Intl?

Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Phoenix Sky Harbor Intl from Ontario. Booking flights from Ontario (ONT) to Phoenix Sky Harbor Intl should be relatively easy as there are 8 daily outbound flights to Phoenix Sky Harbor Intl from 2 different airlines.

Can I find flights from Ontario to Phoenix Sky Harbor Intl Airport for under $100 on Cheapflights?

Yes, there are multiple flights from Ontario to Phoenix Sky Harbor Intl Airport for under $100. The cheapest flight booked recently is on Frontier for just $53, but on average you can expect to pay $71.

Are there nonstop flights from Ontario to Phoenix Sky Harbor Intl Airport for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Ontario to Phoenix Sky Harbor Intl Airport under $100. A good price for a nonstop flight from Ontario to Phoenix Sky Harbor Intl Airport is less than $96.

Are there last-minute flights available from Ontario to Phoenix Sky Harbor Intl Airport for under $100?

There are currently 20+ open flights from Ontario to Phoenix Sky Harbor Intl Airport within the next 7 days for less than $100.

What days are nonstop flights available from Ontario to Phoenix Sky Harbor Intl Airport?

Nonstop flights can be found on the following days: Sunday, Monday, Thursday, Friday, Saturday.

How many flights depart from Ontario to Phoenix Sky Harbor Intl Airport on average per day?

Per day, 8 flights depart from Ontario to Phoenix Sky Harbor Intl Airport on average.
Early Morning (Midnight to 6am) - 13% of flight departures
Morning (6am - Noon) - 38% of flight departures
Afternoon (Noon - 6pm) - 38% of flight departures
Evening (6pm - Midnight) - 13% of flight departures

How long is the flight from Ontario to Phoenix Sky Harbor Intl Airport?

Departing from Ontario to Phoenix Sky Harbor Intl Airport will take you 1h 22m. Ontario and Phoenix Sky Harbor Intl Airport are separated by a distance of 326 mi. Generally, flights for this route are nonstop.

What is the cheapest airline to fly from Ontario to Phoenix Sky Harbor Intl Airport round-trip?

Currently priced at $53, Frontier will fly you from Ontario to Phoenix Sky Harbor Intl Airport and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Frontier is 78% cheaper than the average price of flights available within the next 90 days to this destination.

What are the most reliable airlines from Ontario to Phoenix Sky Harbor Intl Airport?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ontario to Phoenix Sky Harbor Intl Airport on time: Envoy Air (100%), SkyWest Airlines (92%), Southwest (84%).

What are the cheapest flights from Ontario to Phoenix Sky Harbor Intl Airport?

On average you can expect to pay $646 for a flight from Ontario to Phoenix Sky Harbor Intl Airport. The cheapest flight overall is $87 while the most popular route, (Ontario - Phoenix Sky Harbor Intl) is currently priced at $57.

What does ONT to PHX mean?

ONT stands for Ontario Airport, while PHX stands for Phoenix Sky Harbor Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

Alternative routes for Ontario to Sky Harbor Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Ontario to Sky Harbor Intl

The chart below displays the airlines Cheapflights users traveling from Ontario to Sky Harbor Intl choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$138FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapest$179Average$291FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Hourly flight availability from Ontario to Sky Harbor Intl

See what time of day planes typically take off from Ontario to Sky Harbor Intl
28%of flight departuresEarly morningMidnight to 6 am
30%of flight departuresMorning6 am to noon
14%of flight departuresAfternoonNoon to 6 pm
28%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Ontario to Sky Harbor Intl

See how many times per day planes take to the skies headed from Ontario to Sky Harbor Intl
Sunday9daily flights
Monday10daily flights
Tuesday9daily flights
Wednesday7daily flights
Thursday10daily flights
Friday10daily flights
Saturday7daily flights

Fly with Cheapflights

What makes Cheapflights the go-to destination for all your flight needs

How does Cheapflights help users find flights from Ontario to Sky Harbor Intl?

Deals for Ontario to Sky Harbor Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Sky Harbor Intl?

Cheapflights simply makes it quick and affordable to book flights from Ontario to Sky Harbor Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to Sky Harbor Intl with no change fees?

Need flexible booking options for your flight to Sky Harbor Intl from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Sky Harbor Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which essentially offers users the ability to be notified when flight prices change. Track prices for your flight to Sky Harbor Intl from Ontario today and book when you’re ready!

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