What airlines fly to Phoenix?

Frontier, Southwest and American Airlines are the top three most popular airlines that fly to Phoenix from Ontario according to our data. Frontier is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Phoenix. Keep in mind that there are 8 different airlines that fly to Phoenix on a routine basis, so you have a few additional options to choose from.

How many flights depart from Ontario to Phoenix on average per day?

As of February 2026, 10 flights take off from Ontario and land in Phoenix each day. The most common flight departure time for this route is 5:00PM, with 45% of daily flights taking off in the afternoon.

What is the cheapest airline that flies from Ontario to Phoenix?

Southwest, Alaska Airlines, and United Airlines are the most popular carriers operating from Ontario to Phoenix

How many flights depart from Ontario to Phoenix on average per week?

The number of flights available between Ontario and Phoenix is 74 per week as of February 2026. The most frequent departure day is Fri, with 20% of weekly flights leaving on this day.

When did momondo last update prices for flights from Ontario Airport to Phoenix?

Prices for flights from Ontario Airport to Phoenix are updated daily.

How many operators does momondo search for flights from Ontario Airport to Phoenix?

As of February 2026, there are 3 operators available to choose from for flights from Ontario Airport to Phoenix.

How old do you have to be to fly from Ontario Airport to Phoenix?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Phoenix.

What documentation or ID do you need to fly to Phoenix?

The travel and health documents you'll need for your trip to Phoenix may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Phoenix. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$58 Cheap Flights from Ontario to Phoenix in 2026

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Find the cheapest flights from Ontario to Phoenix

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:23 pm - 8:18 pm

ONT

PHX

5h 55m

1 stop

1:07 pm - 1:28 pm

PHX

ONT

24h 21m

1 stop

$148Frontier

Sat, Mar 28 - Mon, Mar 30

2:23 pm - 8:18 pm

ONT

PHX

5h 55m

1 stop

12:48 pm - 7:19 pm

PHX

ONT

6h 31m

1 stop

$151Frontier

Sat, Mar 28 - Sat, Apr 4

7:29 pm - 11:49 pm

ONT

PHX

4h 20m

1 stop

2:05 pm - 6:34 pm

PHX

ONT

4h 29m

1 stop

$153Frontier

Tue, May 5 - Tue, May 12

3:30 pm - 3:18 pm

ONT

PHX

23h 48m

1 stop

6:55 am - 1:11 pm

PHX

ONT

6h 16m

1 stop

$155Frontier

Mon, Mar 16 - Thu, Mar 19

9:53 am - 11:13 am

ONT

PHX

1h 20mnonstop

8:48 pm - 10:07 pm

PHX

ONT

1h 19mnonstop

$157American Airlines

Thu, Mar 26 - Thu, Apr 2

8:07 am - 3:18 pm

ONT

PHX

7h 11m

1 stop

11:33 am - 6:36 pm

PHX

ONT

7h 03m

1 stop

$158Frontier

Thu, Mar 26 - Sat, Mar 28

12:22 pm - 8:41 pm

ONT

PHX

8h 19m

1 stop

2:05 pm - 11:55 pm

PHX

ONT

9h 50m

2 stops

$159Frontier

Mon, May 4 - Wed, May 6

5:33 pm - 11:42 pm

ONT

PHX

6h 09m

1 stop

9:24 pm - 7:31 am

PHX

ONT

10h 07m

1 stop

$160Frontier

Fri, May 1 - Sun, May 3

10:27 pm - 9:48 am

ONT

PHX

11h 21m

1 stop

6:45 am - 8:07 pm

PHX

ONT

13h 22m

1 stop

$161Frontier

Thu, Apr 9 - Mon, Apr 13

6:20 am - 1:45 pm

ONT

PHX

7h 25m

1 stop

8:50 am - 11:56 pm

PHX

ONT

15h 06m

1 stop

$162Frontier

Thu, Apr 9 - Mon, Apr 13

Frontier flights from Ontario to Phoenix

Our best Frontier deals on Ontario to Phoenix flight tickets

Frontier

Mar 28

ONT2:23 pmOntario

5h 55m

1 stop

PHX8:18 pmPhoenix Sky Harbor Intl

Mar 30

PHX1:07 pmPhoenix Sky Harbor Intl

24h 21m

1 stop

ONT1:28 pmOntario

$148

Frontier

Mar 23

ONT3:30 pmOntario

23h 48m

1 stop

PHX3:18 pmPhoenix Sky Harbor Intl

Mar 30

PHX7:57 pmPhoenix Sky Harbor Intl

44h 00m

2 stops

ONT3:57 pmOntario

$151

Frontier

May 5

ONT7:29 pmOntario

4h 20m

1 stop

PHX11:49 pmPhoenix Sky Harbor Intl

May 12

PHX2:05 pmPhoenix Sky Harbor Intl

4h 29m

1 stop

ONT6:34 pmOntario

$153

Fly from

Fly to

Route

Depart

Return

Price

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 3/28

2:23 pm-8:18 pm

1 stop5h 55m

Phoenix Sky Harbor Intl

Mon 3/30

1:07 pm-1:28 pm

1 stop24h 21m

$148

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 3/28

2:23 pm-8:18 pm

1 stop5h 55m

Phoenix Sky Harbor Intl

Sat 4/4

12:48 pm-7:19 pm

1 stop6h 31m

$151

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 5/5

7:29 pm-11:49 pm

1 stop4h 20m

Phoenix Sky Harbor Intl

Tue 5/12

2:05 pm-6:34 pm

1 stop4h 29m

$153

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Mon 3/16

3:30 pm-3:18 pm

1 stop23h 48m

Phoenix Sky Harbor Intl

Thu 3/19

6:55 am-1:11 pm

1 stop6h 16m

$155

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 3/26

9:53 am-11:13 am

Nonstop1h 20m

Phoenix Sky Harbor Intl

Thu 4/2

8:48 pm-10:07 pm

Nonstop1h 19m

$157

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 3/26

8:07 am-3:18 pm

1 stop7h 11m

Phoenix Sky Harbor Intl

Sat 3/28

11:33 am-6:36 pm

1 stop7h 03m

$158

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Mon 5/4

12:22 pm-8:41 pm

1 stop8h 19m

Phoenix Sky Harbor Intl

Wed 5/6

2:05 pm-11:55 pm

2 stops9h 50m

$159

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Fri 5/1

5:33 pm-11:42 pm

1 stop6h 09m

Phoenix Sky Harbor Intl

Sun 5/3

9:24 pm-7:31 am

1 stop10h 07m

$160

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 4/9

10:27 pm-9:48 am

1 stop11h 21m

Phoenix Sky Harbor Intl

Mon 4/13

6:45 am-8:07 pm

1 stop13h 22m

$161

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 4/9

6:20 am-1:45 pm

1 stop7h 25m

Phoenix Sky Harbor Intl

Mon 4/13

8:50 am-11:56 pm

1 stop15h 06m

$162

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Phoenix

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Phoenix?

If you are unable to visit Phoenix during the month of September, then departing from Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $187.

What is the cheapest day to depart on your flight to Phoenix?

On average, the least expensive day to fly to Phoenix from Ontario is on a Friday. momondo users have found tickets for Friday departures for as low as $207. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $300.

What is the cheapest time of day to depart on your flight to Phoenix?

The cheapest time of day to fly to Phoenix is at noon when flights can be purchased for as low as $182. In the morning is when there is more demand to fly to Phoenix, so prices are often more expensive at around $274 per ticket.

What is the cheapest Ontario to Phoenix flight route?

Fly from Ontario to Phoenix Sky Harbor Intl for the best Ontario - Phoenix flight prices

How far in advance should I book a flight to Phoenix?

You are more likely to see cheaper flights to Phoenix from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix for around $255 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix from Ontario for as low as $134 on momondo.

What cabin class options are available on Ontario to Phoenix flights?

There are 4 cabin classes available to choose from on Ontario to Phoenix flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Ontario to Phoenix flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Phoenix

Fastest flight time	1h 15m
Direct flights	Every day
Airports in Phoenix	3 airports

The fastest flight from Ontario to Phoenix takes 1h 15m

Direct flights go from Ontario to Phoenix every day.

There are 3 airports in Phoenix. From Ontario there are direct flights to Phoenix Sky Harbor Intl (PHX).

Search flight deals

How far is Ontario to Phoenix by plane?
The straight-line distance from Ontario to Phoenix is 322.9 mi. By plane, this route typically takes 1h 15m.
When did momondo last update prices for flights from Ontario Airport to Phoenix?
Prices for flights from Ontario Airport to Phoenix are updated daily.
How many operators does momondo search for flights from Ontario Airport to Phoenix?
As of February 2026, there are 3 operators available to choose from for flights from Ontario Airport to Phoenix.
How old do you have to be to fly from Ontario Airport to Phoenix?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Phoenix.
What documentation or ID do you need to fly to Phoenix?
The travel and health documents you'll need for your trip to Phoenix may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Phoenix. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ontario to Phoenix

Compare and see reviews for airlines that fly from Ontario to Phoenix with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $78	Free Cancellation	Rating 5.7 3,041 reviews	Search Frontier flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,301 reviews	Search Southwest flights
American Airlines	PriceFrom $122	Free Cancellation	Rating 7.2 11,357 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Phoenix?

It is quick and easy to find Ontario to Phoenix flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Phoenix that suits you.

Can I find flights from Ontario to Phoenix with flexible booking policies on momondo?

Flights from Ontario to Phoenix with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Phoenix?

Once all potential Ontario to Phoenix flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Phoenix right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Phoenix flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Ontario to Phoenix from $58

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Phoenix departing on 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Ontario to Phoenix

What is the cheapest month to fly to Phoenix?

What is the cheapest day to depart on your flight to Phoenix?

What is the cheapest time of day to depart on your flight to Phoenix?

What is the cheapest Ontario to Phoenix flight route?

How far in advance should I book a flight to Phoenix?

What cabin class options are available on Ontario to Phoenix flights?

What is the cheapest airline that flies from Ontario to Phoenix?

What airlines fly to Phoenix?

How many flights depart from Ontario to Phoenix on average per day?

How many flights depart from Ontario to Phoenix on average per week?

Cheap Ontario to Phoenix flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Phoenix

Fastest flight time

Direct flights

Airports in Phoenix

Best airlines flying from Ontario to Phoenix

Compare and see reviews for airlines that fly from Ontario to Phoenix with momondo

Why use momondo?

An easier way to manage your Phoenix trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Fly into one of these airports located in Phoenix

Airports listed have a maximum distance of 25.4 mi from Phoenix

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