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Cheap flights from Phoenix to Los Angeles from $50

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 to Los Angeles departing on 12/10. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:38 am - 8:42 pmPHX-ONT
9h 04m1 stop
Frontier Logo
10:43 pm - 6:50 pmONT-PHX
19h 07m1 stop
$99Frontier
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Tue, Oct 28 - Mon, Nov 3
Frontier Logo
6:01 am - 9:10 amPHX-ONT
3h 09m1 stop
Frontier Logo
8:00 am - 6:50 pmONT-PHX
9h 50m1 stop
$108Frontier
Find Deal
Thu, Oct 30 - Tue, Nov 4
Frontier Logo
8:20 am - 11:50 pmPHX-ONT
15h 30m1 stop
Frontier Logo
1:46 pm - 11:03 pmONT-PHX
8h 17m1 stop
$109Frontier
Find Deal
Sat, Nov 1 - Mon, Nov 3
Frontier Logo
9:17 am - 9:57 pmPHX-ONT
13h 40m1 stop
Frontier Logo
8:45 am - 5:01 pmONT-PHX
7h 16m1 stop
$114Frontier
Find Deal
Mon, Nov 10 - Tue, Nov 18
Frontier Logo
9:17 am - 9:57 pmPHX-ONT
13h 40m1 stop
Frontier Logo
10:43 pm - 11:44 pmONT-PHX
24h 01m1 stop
$118Frontier
Find Deal
Mon, Nov 10 - Sun, Nov 16
Multiple Airlines Logo
11:38 am - 8:42 pmPHX-ONT
10h 04m1 stop
Multiple Airlines Logo
10:43 pm - 10:23 pmONT-PHX
22h 40m2 stops
$126Multiple Airlines
Find Deal
Wed, Nov 5 - Mon, Nov 10
Multiple Airlines Logo
10:45 am - 10:05 pmPHX-ONT
11h 20m2 stops
Multiple Airlines Logo
8:00 am - 6:50 pmONT-PHX
10h 50m1 stop
$174Multiple Airlines
Find Deal
Fri, Oct 24 - Wed, Oct 29
Delta Logo
8:00 am - 10:47 pmPHX-ONT
15h 47m1 stop
Delta Logo
5:49 pm - 11:07 amONT-PHX
16h 18m1 stop
$205Delta
Find Deal
Sat, Dec 6 - Wed, Dec 10
Delta Logo
12:12 pm - 9:55 pmPHX-ONT
10h 43m2 stops
Delta Logo
6:40 am - 11:51 pmONT-PHX
16h 11m1 stop
$210Delta
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Sat, Dec 6 - Tue, Dec 9
Southwest Logo
6:45 pm - 7:00 pmPHX-ONT
1h 15mnonstop
Southwest Logo
8:30 am - 10:45 amONT-PHX
1h 15mnonstop
$224Southwest
Find Deal
Sat, Dec 13 - Tue, Dec 16

Frontier flights from Phoenix to Ontario

Our best Frontier deals on Phoenix to Ontario flight tickets
Frontier
Oct 23
PHX5:45 amPhoenix Sky Harbor Intl
6h 02m
1 stop
ONT11:47 amOntario
Oct 27
ONT5:15 pmOntario
6h 26m
1 stop
PHX11:41 pmPhoenix Sky Harbor Intl
$98
Find similar
Frontier
Oct 28
PHX11:38 amPhoenix Sky Harbor Intl
9h 04m
1 stop
ONT8:42 pmOntario
Nov 3
ONT10:43 pmOntario
19h 07m
1 stop
PHX6:50 pmPhoenix Sky Harbor Intl
$99
Find similar
Frontier
Oct 30
PHX6:01 amPhoenix Sky Harbor Intl
3h 09m
1 stop
ONT9:10 amOntario
Nov 4
ONT8:00 amOntario
9h 50m
1 stop
PHX6:50 pmPhoenix Sky Harbor Intl
$108
Find similar

Delta flights from Phoenix to Ontario

Our best Delta deals on Phoenix to Ontario flight tickets
Delta
Dec 6
PHX8:00 amPhoenix Sky Harbor Intl
15h 47m
1 stop
ONT10:47 pmOntario
Dec 10
ONT5:49 pmOntario
16h 18m
1 stop
PHX11:07 amPhoenix Sky Harbor Intl
$205
Find similar
Delta
Dec 6
PHX12:12 pmPhoenix Sky Harbor Intl
10h 43m
2 stops
ONT9:55 pmOntario
Dec 9
ONT6:40 amOntario
16h 11m
1 stop
PHX11:51 pmPhoenix Sky Harbor Intl
$210
Find similar
Delta
Dec 6
PHX8:00 amPhoenix Sky Harbor Intl
14h 55m
2 stops
ONT9:55 pmOntario
Dec 12
ONT4:49 pmOntario
19h 55m
2 stops
PHX1:44 pmPhoenix Sky Harbor Intl
$216
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix 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 October 14, 2025.
Use the filters below to find and compare flights from Phoenix to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 10/28

11:38 am-8:42 pm

1 stop9h 04m

Ontario

Mon 11/3

10:43 pm-6:50 pm

1 stop19h 07m

$99

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 10/30

6:01 am-9:10 am

1 stop3h 09m

Ontario

Tue 11/4

8:00 am-6:50 pm

1 stop9h 50m

$108

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 11/1

8:20 am-11:50 pm

1 stop15h 30m

Ontario

Mon 11/3

1:46 pm-11:03 pm

1 stop8h 17m

$109

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Mon 11/10

9:17 am-9:57 pm

1 stop13h 40m

Ontario

Tue 11/18

8:45 am-5:01 pm

1 stop7h 16m

$114

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Mon 11/10

9:17 am-9:57 pm

1 stop13h 40m

Ontario

Sun 11/16

10:43 pm-11:44 pm

1 stop24h 01m

$118

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 11/5

11:38 am-8:42 pm

1 stop10h 04m

Ontario

Mon 11/10

10:43 pm-10:23 pm

2 stops22h 40m

$126

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 10/24

10:45 am-10:05 pm

2 stops11h 20m

Ontario

Wed 10/29

8:00 am-6:50 pm

1 stop10h 50m

$174

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 12/6

8:00 am-10:47 pm

1 stop15h 47m

Ontario

Wed 12/10

5:49 pm-11:07 am

1 stop16h 18m

$205

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 12/6

12:12 pm-9:55 pm

2 stops10h 43m

Ontario

Tue 12/9

6:40 am-11:51 pm

1 stop16h 11m

$210

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 12/13

6:45 pm-7:00 pm

Nonstop1h 15m

Ontario

Tue 12/16

8:30 am-10:45 am

Nonstop1h 15m

$224

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 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, September is the cheapest month to fly from Phoenix to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $158. If you aren’t able to travel during the month of September, then book flights to Ontario from Phoenix during August instead. Flights to Ontario in August, while not as cheap as those in September, still average around $175.

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 Sunday when prices can be found for as low as $250. 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 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 to Ontario when you can find flight prices for as low as $249. 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 afternoon when prices are $286 on average. Flights to Ontario from Phoenix in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Phoenix to Ontario flight route?

Fly from Phoenix Sky Harbor Intl to Ontario for the best Phoenix - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $237 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Phoenix for as low as $97 on momondo.

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

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

Cheap Phoenix to Ontario flight deals and tips

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

Fastest flight time

1h 10m

Direct flights

Every day

Airports in Ontario

1 airport
The fastest flight from Phoenix to Ontario takes 1h 10m
Direct flights go from Phoenix to Ontario every day.
There is 1 airport near Ontario: Ontario (ONT)
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  • How far is Phoenix to Ontario by plane?

    The distance between Phoenix and Ontario is about 322.9 mi. 1h 15m is a normal flight duration for this route.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phoenix 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.

Best airlines flying from Phoenix to Ontario

Compare and see reviews for airlines that fly from Phoenix to Ontario with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $68Free CancellationRating
5.8
3,136 reviews
Search Frontier flights
American AirlinesPriceFrom $97Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
SouthwestPriceFrom $99Free CancellationRating
8.0
4,235 reviews
Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Phoenix to Ontario. momondo saves you time and could save you money on your trip.

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?

momondo provides multiple filters to help you find the best flight to Ontario from Phoenix. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Phoenix and alert you when they change.

An easier way to manage your Ontario 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.
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