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Cheap flights from Phoenix Sky Harbor Intl Airport to Los Angeles from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix Sky Harbor Intl Airport to Los Angeles departing on 10/15. 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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Find the cheapest flights from Phoenix Sky Harbor Intl Airport to Los Angeles

Cheap round-trip flights

Southwest Logo
7:40 pm - 8:50 pmPHX-ONT
1h 10mnonstop
Southwest Logo
5:20 am - 6:30 amONT-PHX
1h 10mnonstop
$97Southwest
Find Deal
Sat, Oct 18 - Mon, Oct 20
American Airlines Logo
7:41 am - 8:56 amPHX-ONT
1h 15mnonstop
American Airlines Logo
4:49 pm - 6:07 pmONT-PHX
1h 18mnonstop
$98American Airlines
Find Deal
Sat, Oct 18 - Mon, Oct 20
Southwest Logo
7:40 pm - 8:50 pmPHX-ONT
1h 10mnonstop
Southwest Logo
5:55 pm - 9:10 pmONT-PHX
3h 15m1 stop
$107Southwest
Find Deal
Sat, Oct 18 - Mon, Oct 20
Southwest Logo
5:50 am - 12:45 pmPHX-ONT
6h 55m2 stops
Southwest Logo
5:20 am - 6:30 amONT-PHX
1h 10mnonstop
$112Southwest
Find Deal
Sat, Oct 18 - Mon, Oct 20
Southwest Logo
6:25 am - 12:10 pmPHX-ONT
5h 45m1 stop
Southwest Logo
3:50 pm - 9:15 pmONT-PHX
5h 25m1 stop
$117Southwest
Find Deal
Mon, Oct 13 - Wed, Oct 15
Southwest Logo
5:50 am - 12:45 pmPHX-ONT
6h 55m2 stops
Southwest Logo
3:40 pm - 9:10 pmONT-PHX
5h 30m1 stop
$122Southwest
Find Deal
Sat, Oct 18 - Mon, Oct 20
Southwest Logo
7:40 am - 9:00 amPHX-ONT
1h 20mnonstop
Southwest Logo
5:20 am - 6:30 amONT-PHX
1h 10mnonstop
$134Southwest
Find Deal
Fri, Oct 17 - Mon, Oct 20
Frontier Logo
5:45 am - 9:10 amPHX-ONT
3h 25m1 stop
Frontier Logo
12:32 pm - 10:27 pmONT-PHX
9h 55m1 stop
$139Frontier
Find Deal
Thu, Oct 9 - Thu, Oct 9
Frontier Logo
5:45 am - 9:10 amPHX-ONT
3h 25m1 stop
Frontier Logo
11:53 am - 6:21 pmONT-PHX
6h 28m1 stop
$143Frontier
Find Deal
Thu, Oct 9 - Mon, Oct 13
American Airlines Logo
5:21 pm - 6:35 pmPHX-ONT
1h 14mnonstop
American Airlines Logo
7:27 pm - 8:47 pmONT-PHX
1h 20mnonstop
$158American Airlines
Find Deal
Wed, Oct 8 - Thu, Oct 16

American Airlines flights from Phoenix Sky Harbor Intl Airport to Ontario

Our best American Airlines deals on Phoenix Sky Harbor Intl Airport to Ontario flight tickets
American Airlines
Oct 18
PHX7:41 amPhoenix Sky Harbor Intl
1h 15m
ONT8:56 amOntario
Oct 20
ONT4:49 pmOntario
1h 18m
PHX6:07 pmPhoenix Sky Harbor Intl
$98
Find similar
American Airlines
Oct 8
PHX5:21 pmPhoenix Sky Harbor Intl
1h 14m
ONT6:35 pmOntario
Oct 16
ONT7:27 pmOntario
1h 20m
PHX8:47 pmPhoenix Sky Harbor Intl
$158
Find similar
American Airlines
Oct 4
PHX4:58 pmPhoenix Sky Harbor Intl
1h 18m
ONT6:16 pmOntario
Oct 27
ONT10:09 amOntario
1h 21m
PHX11:30 amPhoenix Sky Harbor Intl
$185
Find similar

Southwest flights from Phoenix Sky Harbor Intl Airport to Ontario

Our best Southwest deals on Phoenix Sky Harbor Intl Airport to Ontario flight tickets
Southwest
Oct 18
PHX7:40 pmPhoenix Sky Harbor Intl
1h 10m
ONT8:50 pmOntario
Oct 20
ONT5:20 amOntario
1h 10m
PHX6:30 amPhoenix Sky Harbor Intl
$97
Find similar
Southwest
Oct 18
PHX7:40 pmPhoenix Sky Harbor Intl
1h 10m
ONT8:50 pmOntario
Oct 20
ONT5:55 pmOntario
3h 15m
1 stop
PHX9:10 pmPhoenix Sky Harbor Intl
$107
Find similar
Southwest
Oct 18
PHX5:50 amPhoenix Sky Harbor Intl
6h 55m
2 stops
ONT12:45 pmOntario
Oct 20
ONT5:20 amOntario
1h 10m
PHX6:30 amPhoenix Sky Harbor Intl
$112
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix Sky Harbor Intl Airport to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 10/18

7:40 pm-8:50 pm

Nonstop1h 10m

Ontario

Mon 10/20

5:20 am-6:30 am

Nonstop1h 10m

$97

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 10/18

7:41 am-8:56 am

Nonstop1h 15m

Ontario

Mon 10/20

4:49 pm-6:07 pm

Nonstop1h 18m

$98

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 10/18

7:40 pm-8:50 pm

Nonstop1h 10m

Ontario

Mon 10/20

5:55 pm-9:10 pm

1 stop3h 15m

$107

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 10/18

5:50 am-12:45 pm

2 stops6h 55m

Ontario

Mon 10/20

5:20 am-6:30 am

Nonstop1h 10m

$112

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Mon 10/13

6:25 am-12:10 pm

1 stop5h 45m

Ontario

Wed 10/15

3:50 pm-9:15 pm

1 stop5h 25m

$117

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 10/18

5:50 am-12:45 pm

2 stops6h 55m

Ontario

Mon 10/20

3:40 pm-9:10 pm

1 stop5h 30m

$122

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 10/17

7:40 am-9:00 am

Nonstop1h 20m

Ontario

Mon 10/20

5:20 am-6:30 am

Nonstop1h 10m

$134

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 10/9

5:45 am-9:10 am

1 stop3h 25m

Ontario

Thu 10/9

12:32 pm-10:27 pm

1 stop9h 55m

$139

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 10/9

5:45 am-9:10 am

1 stop3h 25m

Ontario

Mon 10/13

11:53 am-6:21 pm

1 stop6h 28m

$143

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 10/8

5:21 pm-6:35 pm

Nonstop1h 14m

Ontario

Thu 10/16

7:27 pm-8:47 pm

Nonstop1h 20m

$158

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport to Ontario

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

What is the cheapest month to fly to Ontario?

In general, August is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $175. If you aren’t able to travel during the month of August, then book flights to Ontario from Phoenix Sky Harbor Intl Airport during October instead. Flights to Ontario in October, while not as cheap as those in August, still average around $182.

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

The cheapest day to depart on your flight to Ontario is on a Saturday when prices can be found for as low as $244. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix Sky Harbor Intl Airport to Ontario for around $284.

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

At noon is the cheapest time of day to fly from Phoenix Sky Harbor Intl Airport to Ontario when you can find flight prices for as low as $245. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $262 on average. Flights to Ontario from Phoenix Sky Harbor Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Phoenix Sky Harbor Intl to Ontario flight route?

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

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

You are more likely to see cheaper flights to Ontario from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $236 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Phoenix Sky Harbor Intl Airport for as low as $97 on momondo.

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

There are 3 cabin classes available to choose from on Phoenix Sky Harbor Intl to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Phoenix Sky Harbor Intl Airport to Ontario flights?

No. A direct flight is the cheapest option for a flight between Phoenix Sky Harbor Intl Airport to Ontario.

How have Phoenix Sky Harbor Intl Airport to Ontario flight prices changed over time?

As of September 2025, prices for Phoenix Sky Harbor Intl Airport to Ontario flights are approximately 14% cheaper when compared to flights at the same time last year.

When to book flights from Phoenix Sky Harbor Intl Airport to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Phoenix Sky Harbor Intl Airport to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Phoenix Sky Harbor Intl Airport to Ontario (PHX to ONT) flight deals and tips

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

Best Price Found

$99

Fastest flight time

1h 10m

Direct flights

Every day

Airports in Ontario

1 airport
The best one-way flight to Ontario from Phoenix Sky Harbor Intl Airport in the past 72 hours is $99. The best round-trip flight deal from Phoenix Sky Harbor Intl Airport to Ontario found on momondo in the last 72 hours is $117.
The fastest flight from Phoenix Sky Harbor Intl Airport to Ontario takes 1h 10m
Direct flights go from Phoenix Sky Harbor Intl Airport to Ontario every day.
There is 1 airport near Ontario: Ontario (ONT)
Search flight deals

  • How far is Phoenix Sky Harbor Intl to Ontario by plane?

    Phoenix Sky Harbor Intl and Ontario are 327.4 mi apart from one another. Flights usually cover this in 1h 10m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Phoenix Sky Harbor Intl Airport to Ontario Airport?

    Prices for flights from Phoenix Sky Harbor Intl Airport to Ontario Airport were last updated today.

  • How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to Ontario Airport?

  • How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Phoenix Sky Harbor Intl Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Phoenix Sky Harbor Intl Airport to Ontario?

  • What is the most popular airline from Phoenix Sky Harbor Intl Airport to Ontario?

Best airlines flying from Phoenix Sky Harbor Intl Airport to Ontario

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to Ontario with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $56Free CancellationRating
5.8
3,174 reviews
Search Frontier flights
American AirlinesPriceFrom $97Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $106Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

  • Southwest Flights From Phoenix Sky Harbor Intl Airport to Ontario

    Southwest flies from Phoenix Sky Harbor Intl Airport to Ontario around 23 times per week, with 4,242 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Phoenix Sky Harbor Intl Airport to Ontario in the last 72 hours was $106 (round-trip), much lower than the average airfare cost of $264 for Southwest flights on this route.

  • American Airlines Flights From Phoenix Sky Harbor Intl Airport to Ontario

    American Airlines (7.2/10 from 10,000 reviews) operates around 19 flights from Phoenix Sky Harbor Intl Airport to Ontario in any given week. The average American Airlines airfare for this route is around $266, with deals from around $97 rare but found on momondo. Referenced prices are for round-trip Phoenix Sky Harbor Intl Airport to Ontario flight searches in the last 72 hours.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Phoenix.

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

Yes. momondo enables you to select and highlight flights to Ontario from Phoenix with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Phoenix.

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

Price alerts on flights to Ontario from Phoenix are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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