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Cheap flights from Pennsylvania to Los Angeles from $65

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Los Angeles departing on 11/20. 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
6:15 am - 4:33 pmPHL-ONT
13h 18m1 stop
Frontier Logo
6:15 am - 5:40 amONT-PHL
20h 25m1 stop
$130Frontier
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Mon, Dec 8 - Wed, Dec 17
Frontier Logo
6:00 am - 11:11 amPHL-ONT
8h 11m1 stop
Frontier Logo
12:58 am - 4:45 amONT-PHL
24h 47m1 stop
$134Frontier
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Thu, Nov 20 - Thu, Nov 27
Multiple Airlines Logo
6:00 am - 9:17 pmPHL-ONT
18h 17m2 stops
Multiple Airlines Logo
12:30 pm - 2:21 pmONT-PHL
22h 51m1 stop
$206Multiple Airlines
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Tue, Dec 2 - Tue, Dec 9
Multiple Airlines Logo
10:30 pm - 2:25 pmEWR-ONT
18h 55m2 stops
Multiple Airlines Logo
12:30 pm - 2:53 pmONT-EWR
23h 23m1 stop
$216Multiple Airlines
Find Deal
Fri, Dec 5 - Tue, Dec 9
Alaska Airlines Logo
4:00 pm - 10:37 pmJFK-ONT
9h 37m1 stop
Alaska Airlines Logo
6:00 am - 7:29 pmONT-JFK
10h 29m1 stop
$249Alaska Airlines
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Wed, Feb 18 - Tue, Feb 24
Alaska Airlines Logo
11:30 am - 6:33 pmJFK-ONT
10h 03m1 stop
Alaska Airlines Logo
6:00 am - 7:29 pmONT-JFK
10h 29m1 stop
$250Alaska Airlines
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Sat, Dec 6 - Tue, Dec 16
Delta Logo
7:00 am - 5:08 pmJFK-ONT
13h 08m1 stop
Delta Logo
6:40 am - 8:01 pmONT-JFK
10h 21m1 stop
$257Delta
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Sat, Dec 6 - Mon, Dec 8
Delta Logo
4:00 pm - 9:07 pmLGA-ONT
8h 07m1 stop
Delta Logo
10:20 pm - 10:48 amONT-LGA
9h 28m1 stop
$257Delta
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Tue, Feb 24 - Sat, Feb 28
American Airlines Logo
2:30 pm - 10:13 pmJFK-ONT
10h 43m2 stops
American Airlines Logo
7:30 pm - 6:30 amONT-JFK
8h 00m1 stop
$262American Airlines
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Thu, Jan 15 - Mon, Jan 19
American Airlines Logo
2:30 pm - 10:13 pmJFK-ONT
10h 43m2 stops
American Airlines Logo
11:59 pm - 1:59 pmONT-JFK
11h 00m2 stops
$267American Airlines
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Thu, Jan 15 - Mon, Jan 19

Alaska Airlines flights from Pennsylvania to Ontario

Our best Alaska Airlines deals on Pennsylvania to Ontario flight tickets
Alaska Airlines
Feb 18
JFK4:00 pmNew York John F Kennedy Intl
9h 37m
1 stop
ONT10:37 pmOntario
Feb 24
ONT6:00 amOntario
10h 29m
1 stop
JFK7:29 pmNew York John F Kennedy Intl
$249
Find similar
Alaska Airlines
Dec 6
JFK11:30 amNew York John F Kennedy Intl
10h 03m
1 stop
ONT6:33 pmOntario
Dec 16
ONT6:00 amOntario
10h 29m
1 stop
JFK7:29 pmNew York John F Kennedy Intl
$250
Find similar
Alaska Airlines
Jan 28
JFK11:30 amNew York John F Kennedy Intl
12h 06m
1 stop
ONT8:36 pmOntario
Feb 2
ONT6:00 amOntario
10h 28m
1 stop
JFK7:28 pmNew York John F Kennedy Intl
$253
Find similar

Delta flights from Pennsylvania to Ontario

Our best Delta deals on Pennsylvania to Ontario flight tickets
Delta
Dec 6
JFK7:00 amNew York John F Kennedy Intl
13h 08m
1 stop
ONT5:08 pmOntario
Dec 8
ONT6:40 amOntario
10h 21m
1 stop
JFK8:01 pmNew York John F Kennedy Intl
$257
Find similar
Delta
Dec 4
LGA2:50 pmNew York LaGuardia
12h 08m
2 stops
ONT11:58 pmOntario
Dec 8
ONT10:25 pmOntario
9h 18m
1 stop
LGA10:43 amNew York LaGuardia
$262
Find similar
Delta
Dec 4
LGA1:56 pmNew York LaGuardia
13h 02m
2 stops
ONT11:58 pmOntario
Dec 8
ONT10:25 pmOntario
10h 37m
2 stops
LGA12:02 pmNew York LaGuardia
$267
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania 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 November 5, 2025.
Use the filters below to find and compare flights from Pennsylvania to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Mon 12/8

6:15 am-4:33 pm

1 stop13h 18m

Ontario

Wed 12/17

6:15 am-5:40 am

1 stop20h 25m

$130

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Thu 11/20

6:00 am-11:11 am

1 stop8h 11m

Ontario

Thu 11/27

12:58 am-4:45 am

1 stop24h 47m

$134

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Tue 12/2

6:00 am-9:17 pm

2 stops18h 17m

Ontario

Tue 12/9

12:30 pm-2:21 pm

1 stop22h 51m

$206

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 12/5

10:30 pm-2:25 pm

2 stops18h 55m

Ontario

Tue 12/9

12:30 pm-2:53 pm

1 stop23h 23m

$216

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 2/18

4:00 pm-10:37 pm

1 stop9h 37m

Ontario

Tue 2/24

6:00 am-7:29 pm

1 stop10h 29m

$249

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 12/6

11:30 am-6:33 pm

1 stop10h 03m

Ontario

Tue 12/16

6:00 am-7:29 pm

1 stop10h 29m

$250

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 12/6

7:00 am-5:08 pm

1 stop13h 08m

Ontario

Mon 12/8

6:40 am-8:01 pm

1 stop10h 21m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 2/24

4:00 pm-9:07 pm

1 stop8h 07m

Ontario

Sat 2/28

10:20 pm-10:48 am

1 stop9h 28m

$257

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Thu 1/15

2:30 pm-10:13 pm

2 stops10h 43m

Ontario

Mon 1/19

7:30 pm-6:30 am

1 stop8h 00m

$262

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Thu 1/15

2:30 pm-10:13 pm

2 stops10h 43m

Ontario

Mon 1/19

11:59 pm-1:59 pm

2 stops11h 00m

$267

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How to get the cheapest flight ticket from Pennsylvania 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, March is the cheapest month to fly from Pennsylvania to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $342. If you aren’t able to travel during the month of March, then book flights to Ontario from Pennsylvania during May instead. Flights to Ontario in May, while not as cheap as those in March, still average around $355.

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 Monday when prices can be found for as low as $330. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Pennsylvania to Ontario for around $416.

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

In the evening is the cheapest time of day to fly from Pennsylvania to Ontario when you can find flight prices for as low as $293. Flying to Ontario in the evening 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 $386 on average. Flights to Ontario from Pennsylvania in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Ontario from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $409 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Pennsylvania for as low as $307 on momondo.

Can stopping save me money on Pennsylvania to Ontario flights?

You could potentially save up to 6% on your flight if you consider stops on a Pennsylvania to Ontario flight.

Cheap Pennsylvania to Ontario flight deals and tips

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

Fastest flight time

6h 10m

Direct flights

Mon, Fri and Sat

Airports in Ontario

1 airport
The fastest flight from Pennsylvania to Ontario takes 6h 10m
Direct flights go from Pennsylvania to Ontario on Monday, Friday and Saturday. There are no airlines offering direct flights.
There is 1 airport near Ontario: Ontario (ONT)
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  • When did momondo last update prices for flights from Pennsylvania to Ontario Airport?

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Ontario Airport.

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

    The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Pennsylvania to Ontario

Compare and see reviews for airlines that fly from Pennsylvania to Ontario with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.8
3,115 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $166Free CancellationRating
6.3
8,113 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $296Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
SouthwestPriceFrom $303Free CancellationRating
8.0
4,239 reviews
Search Southwest flights
American AirlinesPriceFrom $306Free CancellationRating
7.2
11,039 reviews
Search American Airlines flights
DeltaPriceFrom $306Free CancellationRating
7.9
8,004 reviews
Search Delta flights

Why use momondo?

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

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

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

Yes. All flights to Ontario from Pennsylvania on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

I’m not ready to book a flight from Pennsylvania 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 Pennsylvania and alert you when they change.

An easier way to manage your Ontario trip

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