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Cheap flights from Phoenix 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 to Los Angeles departing on 10/9. 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 to Los Angeles

Cheap round-trip flights

American Airlines Logo
10:32 am - 11:56 amPHX-ONT
1h 24mnonstop
American Airlines Logo
1:10 pm - 2:31 pmONT-PHX
1h 21mnonstop
$97American Airlines
Find Deal
Sat, Sep 27 - Mon, Sep 29
Southwest Logo
9:35 pm - 10:45 pmPHX-ONT
1h 10mnonstop
Southwest Logo
5:55 pm - 9:10 pmONT-PHX
3h 15m1 stop
$107Southwest
Find Deal
Thu, Sep 25 - Thu, Oct 2
Southwest Logo
6:00 am - 12:00 pmPHX-ONT
6h 00m1 stop
Southwest Logo
5:55 pm - 9:10 pmONT-PHX
3h 15m1 stop
$117Southwest
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Thu, Sep 25 - Thu, Oct 2
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 23 - Thu, Oct 23
Frontier Logo
10:31 am - 2:00 pmPHX-ONT
3h 29m1 stop
Frontier Logo
7:30 pm - 10:42 pmONT-PHX
3h 12m1 stop
$142Frontier
Find Deal
Mon, Sep 8 - Sun, Sep 14
Frontier Logo
8:15 am - 11:43 amPHX-ONT
3h 28m1 stop
Frontier Logo
6:00 am - 9:36 amONT-PHX
3h 36m1 stop
$143Frontier
Find Deal
Fri, Sep 26 - Mon, Oct 6
Frontier Logo
6:00 am - 11:43 amPHX-ONT
5h 43m1 stop
Frontier Logo
8:00 am - 4:32 pmONT-PHX
8h 32m1 stop
$144Frontier
Find Deal
Fri, Sep 12 - Sat, Sep 13
Frontier Logo
7:40 am - 3:24 pmPHX-ONT
7h 44m1 stop
Frontier Logo
6:00 am - 9:36 amONT-PHX
3h 36m1 stop
$145Frontier
Find Deal
Sun, Sep 14 - Mon, Sep 15
Frontier Logo
5:45 am - 11:54 amPHX-ONT
6h 09m1 stop
Frontier Logo
6:44 pm - 11:41 pmONT-PHX
4h 57m1 stop
$146Frontier
Find Deal
Sun, Oct 12 - Sun, Oct 19
American Airlines Logo
2:43 pm - 4:05 pmPHX-ONT
1h 22mnonstop
American Airlines Logo
4:45 pm - 6:12 pmONT-PHX
1h 27mnonstop
$178American Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29

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
3h 25m
1 stop
ONT9:10 amOntario
Oct 23
ONT12:32 pmOntario
9h 55m
1 stop
PHX10:27 pmPhoenix Sky Harbor Intl
$139
Find similar
Frontier
Sep 8
PHX10:31 amPhoenix Sky Harbor Intl
3h 29m
1 stop
ONT2:00 pmOntario
Sep 14
ONT7:30 pmOntario
3h 12m
1 stop
PHX10:42 pmPhoenix Sky Harbor Intl
$142
Find similar
Frontier
Sep 26
PHX8:15 amPhoenix Sky Harbor Intl
3h 28m
1 stop
ONT11:43 amOntario
Oct 6
ONT6:00 amOntario
3h 36m
1 stop
PHX9:36 amPhoenix Sky Harbor Intl
$143
Find similar

American Airlines flights from Phoenix to Ontario

Our best American Airlines deals on Phoenix to Ontario flight tickets
American Airlines
Sep 27
PHX10:32 amPhoenix Sky Harbor Intl
1h 24m
ONT11:56 amOntario
Sep 29
ONT1:10 pmOntario
1h 21m
PHX2:31 pmPhoenix Sky Harbor Intl
$97
Find similar
American Airlines
Sep 26
PHX2:43 pmPhoenix Sky Harbor Intl
1h 22m
ONT4:05 pmOntario
Sep 29
ONT4:45 pmOntario
1h 27m
PHX6:12 pmPhoenix Sky Harbor Intl
$178
Find similar
American Airlines
Sep 23
PHX10:32 amPhoenix Sky Harbor Intl
1h 24m
ONT11:56 amOntario
Sep 30
ONT1:10 pmOntario
1h 21m
PHX2:31 pmPhoenix Sky Harbor Intl
$179
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 August 28, 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

Sat 9/27

10:32 am-11:56 am

Nonstop1h 24m

Ontario

Mon 9/29

1:10 pm-2:31 pm

Nonstop1h 21m

$97

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 9/25

9:35 pm-10:45 pm

Nonstop1h 10m

Ontario

Thu 10/2

5:55 pm-9:10 pm

1 stop3h 15m

$107

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 9/25

6:00 am-12:00 pm

1 stop6h 00m

Ontario

Thu 10/2

5:55 pm-9:10 pm

1 stop3h 15m

$117

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 10/23

5:45 am-9:10 am

1 stop3h 25m

Ontario

Thu 10/23

12:32 pm-10:27 pm

1 stop9h 55m

$139

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Mon 9/8

10:31 am-2:00 pm

1 stop3h 29m

Ontario

Sun 9/14

7:30 pm-10:42 pm

1 stop3h 12m

$142

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 9/26

8:15 am-11:43 am

1 stop3h 28m

Ontario

Mon 10/6

6:00 am-9:36 am

1 stop3h 36m

$143

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 9/12

6:00 am-11:43 am

1 stop5h 43m

Ontario

Sat 9/13

8:00 am-4:32 pm

1 stop8h 32m

$144

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sun 9/14

7:40 am-3:24 pm

1 stop7h 44m

Ontario

Mon 9/15

6:00 am-9:36 am

1 stop3h 36m

$145

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sun 10/12

5:45 am-11:54 am

1 stop6h 09m

Ontario

Sun 10/19

6:44 pm-11:41 pm

1 stop4h 57m

$146

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Fri 9/26

2:43 pm-4:05 pm

Nonstop1h 22m

Ontario

Mon 9/29

4:45 pm-6:12 pm

Nonstop1h 27m

$178

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, October 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 $191. If you aren’t able to travel during the month of October, then book flights to Ontario from Phoenix during September instead. Flights to Ontario in September, while not as cheap as those in October, still average around $201.

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 $241. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix to Ontario for around $285.

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 morning when prices are $270 on average. Flights to Ontario from Phoenix in the morning 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 $238 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 $91 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 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 $56Free CancellationRating
5.8
3,204 reviews
Search Frontier flights
SouthwestPriceFrom $107Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $123Free CancellationRating
7.2
10,000 reviews
Search American Airlines 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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