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

Southwest is the most popular carrier 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 46% 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 week?

The number of flights available between Ontario and Phoenix is 54 per week as of June 2026. The most frequent departure day is Thu, with 19% of weekly flights leaving on this day.

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

As of June 2026, 7 flights take off from Ontario and land in Phoenix each day. The most common flight departure time for this route is 1:00PM, with 40% of daily flights taking off in the afternoon.

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 June 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.

$55 Cheap Flights from Ontario to Phoenix in 2026

Q: 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 $235 to $412. The lowest price recently found on this route was $109.

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Find the cheapest flights from Ontario to Phoenix

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:35 pm - 5:50 pm

ONT

PHX

1h 15mnonstop

12:55 pm - 2:05 pm

PHX

ONT

1h 10mnonstop

$109Southwest

Tue, Jul 14 - Wed, Jul 22

12:59 pm - 2:25 pm

ONT

PHX

1h 26mnonstop

10:45 am - 12:03 pm

PHX

ONT

1h 18mnonstop

$117American Airlines

Sat, Aug 22 - Sat, Aug 29

3:30 pm - 7:40 pm

ONT

PHX

4h 10m

1 stop

8:00 am - 9:15 am

PHX

ONT

1h 15mnonstop

$119Southwest

Tue, Jul 14 - Wed, Jul 22

4:35 pm - 5:50 pm

ONT

PHX

1h 15mnonstop

4:35 pm - 10:10 pm

PHX

ONT

5h 35m

2 stops

$124Southwest

Tue, Jul 14 - Tue, Jul 21

1:15 pm - 5:40 pm

ONT

PHX

4h 25m

1 stop

12:55 pm - 2:05 pm

PHX

ONT

1h 10mnonstop

$127Southwest

Tue, Aug 18 - Tue, Sep 15

4:05 pm - 8:40 pm

ONT

PHX

4h 35m

1 stop

7:30 am - 2:55 pm

PHX

ONT

7h 25m

1 stop

$129Southwest

Tue, Jul 7 - Tue, Sep 15

1:25 pm - 7:55 pm

ONT

PHX

6h 30m

2 stops

12:30 pm - 1:40 pm

PHX

ONT

1h 10mnonstop

$132Southwest

Sat, Jul 18 - Sat, Jul 25

6:25 pm - 10:30 pm

ONT

PHX

4h 05m

1 stop

4:35 pm - 10:10 pm

PHX

ONT

5h 35m

2 stops

$134Southwest

Tue, Jul 14 - Tue, Jul 21

4:05 pm - 8:40 pm

ONT

PHX

4h 35m

1 stop

5:25 am - 10:50 am

PHX

ONT

5h 25m

1 stop

$137Southwest

Wed, Jul 15 - Wed, Jul 22

1:25 pm - 7:55 pm

ONT

PHX

6h 30m

2 stops

5:40 am - 8:40 am

PHX

ONT

3h 00m

1 stop

$142Southwest

Sat, Jul 18 - Sat, Jul 25

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Frontier flights from Ontario to Phoenix

Our best Frontier deals on Ontario to Phoenix flight tickets

Frontier

Jul 4

ONT3:34 pmOntario

7h 26m

1 stop

PHX11:00 pmPhoenix Sky Harbor Intl

Jul 14

PHX9:58 pmPhoenix Sky Harbor Intl

10h 05m

1 stop

ONT8:03 amOntario

$160

Frontier

Jun 30

ONT3:34 pmOntario

21h 21m

1 stop

PHX12:55 pmPhoenix Sky Harbor Intl

Jul 3

PHX10:32 pmPhoenix Sky Harbor Intl

21h 19m

1 stop

ONT7:51 pmOntario

$164

Frontier

Jul 4

ONT11:58 amOntario

11h 02m

1 stop

PHX11:00 pmPhoenix Sky Harbor Intl

Jul 8

PHX4:48 pmPhoenix Sky Harbor Intl

7h 02m

1 stop

ONT11:50 pmOntario

$206

American Airlines flights from Ontario to Phoenix

Our best American Airlines deals on Ontario to Phoenix flight tickets

American Airlines

Aug 22

ONT12:59 pmOntario

1h 26m

PHX2:25 pmPhoenix Sky Harbor Intl

Aug 29

PHX10:45 amPhoenix Sky Harbor Intl

1h 18m

ONT12:03 pmOntario

$117

American Airlines

Nov 4

ONT7:30 pmOntario

1h 21m

PHX9:51 pmPhoenix Sky Harbor Intl

Nov 7

PHX9:45 pmPhoenix Sky Harbor Intl

1h 14m

ONT9:59 pmOntario

$145

American Airlines

Aug 8

ONT6:15 amOntario

1h 23m

PHX7:38 amPhoenix Sky Harbor Intl

Aug 10

PHX5:02 pmPhoenix Sky Harbor Intl

1h 13m

ONT6:15 pmOntario

$148

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 7/14

4:35 pm-5:50 pm

Nonstop1h 15m

Phoenix Sky Harbor Intl

Wed 7/22

12:55 pm-2:05 pm

Nonstop1h 10m

$109

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 8/22

12:59 pm-2:25 pm

Nonstop1h 26m

Phoenix Sky Harbor Intl

Sat 8/29

10:45 am-12:03 pm

Nonstop1h 18m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 7/14

3:30 pm-7:40 pm

1 stop4h 10m

Phoenix Sky Harbor Intl

Wed 7/22

8:00 am-9:15 am

Nonstop1h 15m

$119

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 7/14

4:35 pm-5:50 pm

Nonstop1h 15m

Phoenix Sky Harbor Intl

Tue 7/21

4:35 pm-10:10 pm

2 stops5h 35m

$124

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 8/18

1:15 pm-5:40 pm

1 stop4h 25m

Phoenix Sky Harbor Intl

Tue 9/15

12:55 pm-2:05 pm

Nonstop1h 10m

$127

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 7/7

4:05 pm-8:40 pm

1 stop4h 35m

Phoenix Sky Harbor Intl

Tue 9/15

7:30 am-2:55 pm

1 stop7h 25m

$129

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 7/18

1:25 pm-7:55 pm

2 stops6h 30m

Phoenix Sky Harbor Intl

Sat 7/25

12:30 pm-1:40 pm

Nonstop1h 10m

$132

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 7/14

6:25 pm-10:30 pm

1 stop4h 05m

Phoenix Sky Harbor Intl

Tue 7/21

4:35 pm-10:10 pm

2 stops5h 35m

$134

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 7/15

4:05 pm-8:40 pm

1 stop4h 35m

Phoenix Sky Harbor Intl

Wed 7/22

5:25 am-10:50 am

1 stop5h 25m

$137

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 7/18

1:25 pm-7:55 pm

2 stops6h 30m

Phoenix Sky Harbor Intl

Sat 7/25

5:40 am-8:40 am

1 stop3h 00m

$142

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?

What is the cheapest month to fly to Phoenix?

If you are unable to visit Phoenix during the month of January, then departing from Ontario during the month November is also very affordable. Most momondo users find prices during this month for around $49.

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 $232. 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 $320.

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 $190. In the afternoon 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 $269 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 $171 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 June 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 $78	Free Cancellation	Rating 5.6 2,877 reviews	Search Frontier flights
Southwest	PriceFrom $114	Free Cancellation	Rating 7.9 4,243 reviews	Search Southwest flights
American Airlines	PriceFrom $125	Free Cancellation	Rating 7.1 11,724 reviews	Search American Airlines flights
JetBlue	PriceFrom $228	Free Cancellation	Rating 7.1 2,989 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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Cheap flights from Ontario to Phoenix from $55

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 8/4. 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

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

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.

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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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