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Cheap flights from Phoenix to Los Angeles 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 Phoenix to Los Angeles departing on 2/17. 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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0 bags

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Find the cheapest flights from Phoenix to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:04 pm - 1:52 pm
PHX
-
ONT
18h 48m
1 stop
Frontier Logo
2:06 pm - 1:55 pm
ONT
-
PHX
22h 49m
1 stop
$110Frontier
Tue, Feb 10 - Tue, Feb 17
American Airlines Logo
3:48 pm - 4:05 pm
PHX
-
ONT
1h 17mnonstop
American Airlines Logo
12:18 pm - 2:41 pm
ONT
-
PHX
1h 23mnonstop
$117American Airlines
Tue, Feb 10 - Tue, Feb 17
Frontier Logo
7:06 pm - 11:59 pm
PHX
-
ONT
5h 53m
1 stop
Frontier Logo
3:22 pm - 6:54 pm
ONT
-
PHX
26h 32m
1 stop
$118Frontier
Sat, Feb 21 - Tue, Feb 24
Frontier Logo
9:59 pm - 1:34 pm
PHX
-
ONT
16h 35m
1 stop
Frontier Logo
6:43 pm - 6:54 pm
ONT
-
PHX
23h 11m
1 stop
$122Frontier
Fri, Feb 6 - Mon, Feb 16
Southwest Logo
3:10 pm - 5:10 pm
PHX
-
ONT
3h 00m
1 stop
Southwest Logo
5:30 am - 7:45 am
ONT
-
PHX
1h 15mnonstop
$123Southwest
Tue, Feb 10 - Tue, Feb 17
Southwest Logo
11:20 am - 2:55 pm
PHX
-
ONT
4h 35m
1 stop
Southwest Logo
5:45 pm - 8:00 pm
ONT
-
PHX
1h 15mnonstop
$127Southwest
Wed, Feb 18 - Wed, Feb 18
Frontier Logo
8:30 am - 3:07 pm
PHX
-
ONT
7h 37m
1 stop
Frontier Logo
8:36 am - 5:19 pm
ONT
-
PHX
7h 43m
1 stop
$128Frontier
Wed, Feb 4 - Tue, Feb 10
Frontier Logo
2:06 pm - 6:40 pm
PHX
-
ONT
5h 34m
1 stop
Frontier Logo
8:36 am - 5:19 pm
ONT
-
PHX
7h 43m
1 stop
$129Frontier
Sat, Feb 7 - Tue, Feb 10
Frontier Logo
10:32 pm - 1:11 pm
PHX
-
ONT
15h 39m
1 stop
Frontier Logo
8:35 am - 5:19 pm
ONT
-
PHX
7h 44m
1 stop
$131Frontier
Sun, Feb 22 - Tue, Feb 24
Frontier Logo
9:47 pm - 7:26 am
PHX
-
ONT
10h 39m
1 stop
Frontier Logo
2:06 pm - 8:50 am
ONT
-
PHX
17h 44m
1 stop
$133Frontier
Fri, Feb 20 - Sat, Feb 28

Southwest flights from Phoenix to Ontario

Our best Southwest deals on Phoenix to Ontario flight tickets
Southwest
Feb 10
PHX3:10 pmPhoenix Sky Harbor Intl
3h 00m
1 stop
ONT5:10 pmOntario
Feb 17
ONT5:30 amOntario
1h 15m
PHX7:45 amPhoenix Sky Harbor Intl
$123
Southwest
Feb 18
PHX11:20 amPhoenix Sky Harbor Intl
4h 35m
1 stop
ONT2:55 pmOntario
Feb 18
ONT5:45 pmOntario
1h 15m
PHX8:00 pmPhoenix Sky Harbor Intl
$127
Southwest
Feb 18
PHX7:00 amPhoenix Sky Harbor Intl
4h 05m
1 stop
ONT10:05 amOntario
Feb 18
ONT4:40 pmOntario
4h 40m
1 stop
PHX10:20 pmPhoenix Sky Harbor Intl
$137

Frontier flights from Phoenix to Ontario

Our best Frontier deals on Phoenix to Ontario flight tickets
Frontier
Feb 10
PHX8:04 pmPhoenix Sky Harbor Intl
18h 48m
1 stop
ONT1:52 pmOntario
Feb 17
ONT2:06 pmOntario
22h 49m
1 stop
PHX1:55 pmPhoenix Sky Harbor Intl
$110
Frontier
Feb 21
PHX7:06 pmPhoenix Sky Harbor Intl
5h 53m
1 stop
ONT11:59 pmOntario
Feb 24
ONT3:22 pmOntario
26h 32m
1 stop
PHX6:54 pmPhoenix Sky Harbor Intl
$118
Frontier
Feb 6
PHX9:59 pmPhoenix Sky Harbor Intl
16h 35m
1 stop
ONT1:34 pmOntario
Feb 16
ONT6:43 pmOntario
23h 11m
1 stop
PHX6:54 pmPhoenix Sky Harbor Intl
$122

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 January 16, 2026.
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 2/10

8:04 pm-1:52 pm

1 stop18h 48m

Ontario

Tue 2/17

2:06 pm-1:55 pm

1 stop22h 49m

$110

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 2/10

3:48 pm-4:05 pm

Nonstop1h 17m

Ontario

Tue 2/17

12:18 pm-2:41 pm

Nonstop1h 23m

$117

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 2/21

7:06 pm-11:59 pm

1 stop5h 53m

Ontario

Tue 2/24

3:22 pm-6:54 pm

1 stop26h 32m

$118

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 2/6

9:59 pm-1:34 pm

1 stop16h 35m

Ontario

Mon 2/16

6:43 pm-6:54 pm

1 stop23h 11m

$122

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 2/10

3:10 pm-5:10 pm

1 stop3h 00m

Ontario

Tue 2/17

5:30 am-7:45 am

Nonstop1h 15m

$123

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 2/18

11:20 am-2:55 pm

1 stop4h 35m

Ontario

Wed 2/18

5:45 pm-8:00 pm

Nonstop1h 15m

$127

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 2/4

8:30 am-3:07 pm

1 stop7h 37m

Ontario

Tue 2/10

8:36 am-5:19 pm

1 stop7h 43m

$128

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 2/7

2:06 pm-6:40 pm

1 stop5h 34m

Ontario

Tue 2/10

8:36 am-5:19 pm

1 stop7h 43m

$129

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sun 2/22

10:32 pm-1:11 pm

1 stop15h 39m

Ontario

Tue 2/24

8:35 am-5:19 pm

1 stop7h 44m

$131

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 2/20

9:47 pm-7:26 am

1 stop10h 39m

Ontario

Sat 2/28

2:06 pm-8:50 am

1 stop17h 44m

$133

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 Wednesday when prices can be found for as low as $224. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix to Ontario for around $335.

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

In the morning is the cheapest time of day to fly from Phoenix to Ontario when you can find flight prices for as low as $260. Flying to Ontario in the morning 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 evening when prices are $304 on average. Flights to Ontario from Phoenix in the evening 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 $243 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 $120 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 in Ontario. From Phoenix there are direct flights to Ontario (ONT).
Search flight deals

  • How far is Phoenix to Ontario by plane?

    The distance between Phoenix and Ontario is about 322.9 mi. 1h 10m 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 $78Free CancellationRating
5.7
3,057 reviews
Search Frontier flights
American AirlinesPriceFrom $97Free CancellationRating
7.2
11,135 reviews
Search American Airlines flights
SouthwestPriceFrom $97Free CancellationRating
8.0
4,258 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

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