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

As of August 2026, 2 flights take off from Ontario and land in Phoenix each day. The most common flight departure time for this route is 1:00PM, with 50% of daily flights taking off in the afternoon.

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

The number of flights available between Ontario and Phoenix is 15 per week as of August 2026. The most frequent departure day is Tue, with 60% of weekly flights leaving on this day.

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

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

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.

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 August 2026, there are 4 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.

$59 Cheap Flights from Ontario to Phoenix in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Phoenix

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:15 pm - 4:35 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 20mnonstop

9:10 am - 10:35 amPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 25mnonstop

$117Southwest

Sat, Sep 5 - Sun, Sep 6

12:59 pm - 2:25 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 26mnonstop

6:04 pm - 7:15 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 11mnonstop

$118American Airlines

Sat, Sep 5 - Sun, Sep 6

5:50 am - 11:10 amONT Ontario-PHX Phoenix Sky Harbor Intl

5h 20m1 stop Las Vegas Harry Reid Intl

9:10 am - 10:35 amPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 25mnonstop

$127Southwest

Sat, Sep 5 - Sun, Sep 6

3:15 pm - 4:35 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 20mnonstop

9:15 am - 2:45 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

5h 30m1 stop San Jose

$127Southwest

Sat, Sep 5 - Sun, Sep 6

6:00 am - 1:17 pmONT Ontario-PHX Phoenix Sky Harbor Intl

7h 17m1 stop Denver Intl

4:48 pm - 11:50 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

7h 02m1 stop Denver Intl

$137Frontier

Tue, Sep 1 - Tue, Sep 1

6:00 am - 1:17 pmONT Ontario-PHX Phoenix Sky Harbor Intl

7h 17m1 stop Denver Intl

9:20 am - 6:16 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

8h 56m1 stop Dallas/Fort Worth

$141Frontier

Wed, Sep 2 - Wed, Sep 9

2:58 pm - 9:35 pmONT Ontario-PHX Phoenix Sky Harbor Intl

6h 37m1 stop Las Vegas Harry Reid Intl

6:30 am - 10:21 amPHX Phoenix Sky Harbor Intl-ONT Ontario

3h 51m1 stop Las Vegas Harry Reid Intl

$142Frontier

Mon, Oct 12 - Tue, Oct 13

5:00 am - 10:37 amONT Ontario-PHX Phoenix Sky Harbor Intl

5h 37m1 stop Denver Intl

3:19 pm - 8:53 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

5h 34m1 stop Denver Intl

$241United Airlines

Thu, Aug 27 - Thu, Aug 27

1:42 pm - 9:39 pmONT Ontario-PHX Phoenix Sky Harbor Intl

6h 57m1 stop Denver Intl

6:10 am - 12:15 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

7h 05m1 stop San Francisco

$259United Airlines

Thu, Dec 24 - Fri, Dec 25

4:27 pm - 11:31 amONT Ontario-PHX Phoenix Sky Harbor Intl

19h 04m2 stops Santa Rosa Sonoma County San Diego

8:00 am - 11:22 amPHX Phoenix Sky Harbor Intl-ONT Ontario

3h 22m1 stop Las Vegas Harry Reid Intl

$259Multiple Airlines

Fri, Sep 25 - Mon, Sep 28

Cheap last minute flights

Enter your travel dates to find the best prices.

4:09 pm - 11:27 amONT Ontario-PHX Phoenix Sky Harbor Intl

19h 18m1 stop Las Vegas Harry Reid Intl

11:21 am - 10:30 amPHX Phoenix Sky Harbor Intl-ONT Ontario

23h 09m1 stop Denver Intl

$256Frontier

Fri, Aug 7 - Tue, Sep 8

4:09 pm - 11:05 pmONT Ontario-PHX Phoenix Sky Harbor Intl

6h 56m1 stop Las Vegas Harry Reid Intl

4:49 pm - 11:50 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

7h 01m1 stop Denver Intl

$270Frontier

Sat, Aug 8 - Sat, Aug 15

6:00 am - 3:44 pmONT Ontario-PHX Phoenix Sky Harbor Intl

9h 44m1 stop Denver Intl

4:48 pm - 11:50 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

7h 02m1 stop Denver Intl

$270Frontier

Sat, Aug 8 - Wed, Aug 19

6:15 am - 7:38 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 23mnonstop

10:45 am - 12:03 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 18mnonstop

$418American Airlines

Mon, Aug 10 - Tue, Aug 11

5:50 am - 7:05 amONT Ontario-PHX Phoenix Sky Harbor Intl

1h 15mnonstop

10:00 am - 11:15 amPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 15mnonstop

$440Southwest

Sat, Aug 8 - Sat, Aug 15

10:49 am - 6:47 pmONT Ontario-PHX Phoenix Sky Harbor Intl

7h 58m1 stop Denver Intl

4:00 pm - 8:03 amPHX Phoenix Sky Harbor Intl-ONT Ontario

40h 03m2 stops Page Las Vegas Harry Reid Intl

$446Multiple Airlines

Sat, Aug 8 - Sun, Aug 9

2:55 pm - 8:00 pmONT Ontario-PHX Phoenix Sky Harbor Intl

5h 05m1 stop Las Vegas Harry Reid Intl

4:10 pm - 5:20 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 10mnonstop

$450Southwest

Sat, Aug 8 - Sat, Aug 15

12:59 pm - 2:25 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 26mnonstop

5:02 pm - 6:15 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 13mnonstop

$463American Airlines

Mon, Aug 10 - Wed, Aug 12

12:59 pm - 2:25 pmONT Ontario-PHX Phoenix Sky Harbor Intl

1h 26mnonstop

2:01 pm - 3:19 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

1h 18mnonstop

$463American Airlines

Sat, Aug 8 - Mon, Aug 10

4:09 pm - 11:05 pmONT Ontario-PHX Phoenix Sky Harbor Intl

6h 56m1 stop Las Vegas Harry Reid Intl

4:00 pm - 3:54 pmPHX Phoenix Sky Harbor Intl-ONT Ontario

23h 54m2 stops Page Las Vegas Harry Reid Intl

$464Multiple Airlines

Sun, Aug 9 - Sun, Aug 16

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Frontier flights from Ontario to Phoenix

Our best Frontier deals on Ontario to Phoenix flight tickets

Frontier

Sep 2

ONT6:00 amOntario

7h 17m

1 stop

PHX1:17 pmPhoenix Sky Harbor Intl

Sep 9

PHX9:20 amPhoenix Sky Harbor Intl

8h 56m

1 stop

ONT6:16 pmOntario

$141

Frontier

Aug 27

ONT3:40 pmOntario

7h 44m

1 stop

PHX11:24 pmPhoenix Sky Harbor Intl

Aug 31

PHX9:03 amPhoenix Sky Harbor Intl

7h 19m

1 stop

ONT4:22 pmOntario

$142

Frontier

Sep 17

ONT2:30 pmOntario

8h 17m

1 stop

PHX10:47 pmPhoenix Sky Harbor Intl

Sep 24

PHX8:00 amPhoenix Sky Harbor Intl

8h 59m

1 stop

ONT4:59 pmOntario

$143

American Airlines flights from Ontario to Phoenix

Our best American Airlines deals on Ontario to Phoenix flight tickets

American Airlines

Sep 5

ONT12:59 pmOntario

1h 26m

PHX2:25 pmPhoenix Sky Harbor Intl

Sep 6

PHX6:04 pmPhoenix Sky Harbor Intl

1h 11m

ONT7:15 pmOntario

$118

American Airlines

Sep 30

ONT1:04 pmOntario

1h 21m

PHX2:25 pmPhoenix Sky Harbor Intl

Oct 1

PHX9:26 pmPhoenix Sky Harbor Intl

1h 17m

ONT10:43 pmOntario

$151

American Airlines

Sep 5

ONT12:59 pmOntario

1h 26m

PHX2:25 pmPhoenix Sky Harbor Intl

Sep 6

PHX6:04 pmPhoenix Sky Harbor Intl

1h 11m

ONT7:15 pmOntario

$187

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Sat 9/5

3:15 pm-4:35 pm

Nonstop1h 20m

Phoenix Sky Harbor Intl

Sun 9/6

9:10 am-10:35 am

Nonstop1h 25m

$117

Quickest round-trip

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Sat 9/5

12:59 pm-2:25 pm

Nonstop1h 26m

Phoenix Sky Harbor Intl

Sun 9/6

6:04 pm-7:15 pm

Nonstop1h 11m

$118

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Sat 9/5

5:50 am-11:10 am

1 stop5h 20m

Phoenix Sky Harbor Intl

Sun 9/6

9:10 am-10:35 am

Nonstop1h 25m

$127

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Sat 9/5

3:15 pm-4:35 pm

Nonstop1h 20m

Phoenix Sky Harbor Intl

Sun 9/6

9:15 am-2:45 pm

1 stop5h 30m

$127

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Tue 9/1

6:00 am-1:17 pm

1 stop7h 17m

Phoenix Sky Harbor Intl

Tue 9/1

4:48 pm-11:50 pm

1 stop7h 02m

$137

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Wed 9/2

6:00 am-1:17 pm

1 stop7h 17m

Phoenix Sky Harbor Intl

Wed 9/9

9:20 am-6:16 pm

1 stop8h 56m

$141

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Mon 10/12

2:58 pm-9:35 pm

1 stop6h 37m

Phoenix Sky Harbor Intl

Tue 10/13

6:30 am-10:21 am

1 stop3h 51m

$142

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Thu 8/27

5:00 am-10:37 am

1 stop5h 37m

Phoenix Sky Harbor Intl

Thu 8/27

3:19 pm-8:53 pm

1 stop5h 34m

$241

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Thu 12/24

1:42 pm-9:39 pm

1 stop6h 57m

Phoenix Sky Harbor Intl

Fri 12/25

6:10 am-12:15 pm

1 stop7h 05m

$259

OntarioPhoenix

ONT Ontario - PHX Phoenix Sky Harbor Intl

ONTPHX

Ontario

Fri 9/25

4:27 pm-11:31 am

2 stops19h 04m

Phoenix Sky Harbor Intl

Mon 9/28

8:00 am-11:22 am

1 stop3h 22m

$259

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 typical price of a round-trip flight between Ontario and Phoenix?

Prices are currently low for flights on this route.

Typical prices usually range from $168 to $353.
The lowest price recently found on this route was $117.

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 October is also very affordable. Most momondo users find prices during this month for around $224.

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 $247. 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 $326.

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 $205. In the morning is when there is more demand to fly to Phoenix, so prices are often more expensive at around $298 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 from Ontario 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 $280 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 $201 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

Frequently asked questions about flying from Ontario to Phoenix

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 August 2026, there are 4 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 $72	Free Cancellation	Rating 5.6 2,723 reviews	Search Frontier flights
Southwest	PriceFrom $114	Free Cancellation	Rating 8.0 4,221 reviews	Search Southwest flights
American Airlines	PriceFrom $125	Free Cancellation	Rating 7.1 11,863 reviews	Search American Airlines flights
JetBlue	PriceFrom $228	Free Cancellation	Rating 7.1 3,024 reviews	Search JetBlue 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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Fly into one of these airports located in Phoenix

Phoenix-Mesa Gateway Airport

Cheap flights from Ontario to Phoenix from $59

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 9/5. 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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Frontier flights from Ontario to Phoenix

Our best Frontier deals on Ontario to Phoenix flight tickets

American Airlines flights from Ontario to Phoenix

Our best American Airlines deals on Ontario to Phoenix flight tickets

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How to get the cheapest flight ticket from Ontario to Phoenix

What is the typical price of a round-trip flight between Ontario and 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 from Ontario 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

Fastest flight time

Direct flights

Airports in Phoenix

Frequently asked questions about flying from Ontario to 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

Fly your favorite airline to Phoenix

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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Popular flights according to clicks in the last 7 days on momondo

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