How long does it take to fly to Ontario?

Average flight duration from Pennsylvania to Ontario depends on which airport you fly into and out of. Flying from Pittsburgh to Los Angeles is 5h 08m on average, while flying from Philadelphia to Los Angeles is 5h 43m on average. Los Angeles is the most popular airport in Ontario.

What airlines fly to Ontario?

American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Ontario from Pennsylvania according to our data. American Airlines is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 9 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Pennsylvania to Ontario?

Frontier, Southwest, and Delta are the most popular carriers operating from Pennsylvania to Ontario

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?

As of March 2026, there are 6 operators available to choose from 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.

$79 Cheap Flights from Pennsylvania to Ontario in 2026

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Find the cheapest flights from Pennsylvania to Los Angeles

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 11:55 pm

DCA

ONT

18h 55m

1 stop

12:59 am - 1:00 pm

ONT

DCA

9h 01m

1 stop

$158Frontier

Di, Apr 14 - Fr, Apr 17

10:40 am - 7:32 pm

PHL

ONT

11h 52m

1 stop

4:39 pm - 5:10 am

ONT

PHL

9h 31m

1 stop

$160Frontier

Di, Mai 5 - Mi, Mai 6

11:30 am - 8:24 am

EWR

ONT

23h 54m

2 stops

7:44 pm - 6:57 am

ONT

EWR

8h 13m

1 stop

$230Multiple Airlines

Mi, Apr 22 - Mi, Apr 29

2:59 pm - 3:44 pm

EWR

ONT

27h 45m

1 stop

4:39 pm - 7:02 am

ONT

EWR

11h 23m

1 stop

$239Multiple Airlines

Di, Mai 5 - Di, Mai 12

3:05 pm - 10:10 pm

LGA

ONT

10h 05m

2 stops

9:30 am - 11:20 pm

ONT

LGA

10h 50m

1 stop

$247Southwest

Di, Apr 14 - Sa, Apr 18

6:00 am - 1:15 pm

LGA

ONT

10h 15m

1 stop

11:55 pm - 11:15 am

ONT

LGA

8h 20m

1 stop

$248Southwest

Mi, Apr 22 - Mi, Apr 29

7:49 am - 1:18 pm

JFK

ONT

8h 29m

1 stop

11:59 pm - 11:34 am

ONT

JFK

8h 35m

1 stop

$248American Airlines

Mi, Apr 22 - Mi, Apr 29

7:45 am - 5:15 pm

JFK

ONT

12h 30m

1 stop

12:49 pm - 12:48 am

ONT

JFK

8h 59m

1 stop

$257Delta

Di, Apr 14 - Mi, Apr 22

6:00 am - 11:36 am

LGA

ONT

8h 36m

1 stop

12:49 pm - 11:41 pm

ONT

LGA

7h 52m

1 stop

$257Delta

Mi, Apr 15 - Mi, Apr 22

5:20 pm - 10:36 pm

JFK

ONT

8h 16m

1 stop

11:59 pm - 11:34 am

ONT

JFK

8h 35m

1 stop

$261American Airlines

Di, Apr 7 - Mi, Apr 15

Southwest flights from Pennsylvania to Ontario

Our best Southwest deals on Pennsylvania to Ontario flight tickets

Southwest

Apr 14

LGA3:05 pmNew York LaGuardia

10h 05m

2 stops

ONT10:10 pmOntario

Apr 18

ONT9:30 amOntario

10h 50m

1 stop

LGA11:20 pmNew York LaGuardia

$247

Southwest

Apr 22

LGA6:00 amNew York LaGuardia

10h 15m

1 stop

ONT1:15 pmOntario

Apr 29

ONT11:55 pmOntario

8h 20m

1 stop

LGA11:15 amNew York LaGuardia

$248

Southwest

Apr 14

LGA3:05 pmNew York LaGuardia

10h 05m

2 stops

ONT10:10 pmOntario

Apr 18

ONT5:40 amOntario

13h 35m

2 stops

LGA10:15 pmNew York LaGuardia

$253

Frontier flights from Pennsylvania to Ontario

Our best Frontier deals on Pennsylvania to Ontario flight tickets

Frontier

Apr 14

DCA8:00 amWashington, D.C. Reagan-National

18h 55m

1 stop

ONT11:55 pmOntario

Apr 17

ONT12:59 amOntario

9h 01m

1 stop

DCA1:00 pmWashington, D.C. Reagan-National

$158

Frontier

Apr 25

PHL8:00 amPhiladelphia

13h 49m

1 stop

ONT6:49 pmOntario

Apr 28

ONT7:44 pmOntario

8h 06m

1 stop

PHL6:50 amPhiladelphia

$160

Frontier

Apr 25

PHL8:41 pmPhiladelphia

13h 45m

1 stop

ONT7:26 amOntario

May 2

ONT7:44 pmOntario

6h 41m

1 stop

PHL5:25 amPhiladelphia

$161

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Ontario

DCA - ONT

DCAONT

Washington, D.C. Reagan-National

Di 4/14

8:00 am-11:55 pm

1 stop18h 55m

Ontario

Fr 4/17

12:59 am-1:00 pm

1 stop9h 01m

$158

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Di 5/5

10:40 am-7:32 pm

1 stop11h 52m

Ontario

Mi 5/6

4:39 pm-5:10 am

1 stop9h 31m

$160

NewarkOntario

EWR - ONT

EWRONT

Newark

Mi 4/22

11:30 am-8:24 am

2 stops23h 54m

Ontario

Mi 4/29

7:44 pm-6:57 am

1 stop8h 13m

$230

NewarkOntario

EWR - ONT

EWRONT

Newark

Di 5/5

2:59 pm-3:44 pm

1 stop27h 45m

Ontario

Di 5/12

4:39 pm-7:02 am

1 stop11h 23m

$239

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Di 4/14

3:05 pm-10:10 pm

2 stops10h 05m

Ontario

Sa 4/18

9:30 am-11:20 pm

1 stop10h 50m

$247

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mi 4/22

6:00 am-1:15 pm

1 stop10h 15m

Ontario

Mi 4/29

11:55 pm-11:15 am

1 stop8h 20m

$248

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Mi 4/22

7:49 am-1:18 pm

1 stop8h 29m

Ontario

Mi 4/29

11:59 pm-11:34 am

1 stop8h 35m

$248

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Di 4/14

7:45 am-5:15 pm

1 stop12h 30m

Ontario

Mi 4/22

12:49 pm-12:48 am

1 stop8h 59m

$257

Quickest round-trip

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mi 4/15

6:00 am-11:36 am

1 stop8h 36m

Ontario

Mi 4/22

12:49 pm-11:41 pm

1 stop7h 52m

$257

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Di 4/7

5:20 pm-10:36 pm

1 stop8h 16m

Ontario

Mi 4/15

11:59 pm-11:34 am

1 stop8h 35m

$261

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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

Prices

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Other information

What is the cheapest month to fly to Ontario?

In general, February 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 $374. If you aren’t able to travel during the month of February, then book flights to Ontario from Pennsylvania during October instead. Flights to Ontario in October, while not as cheap as those in February, still average around $375.

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 $419 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 $296 on momondo.

Can stopping save me money on Pennsylvania to Ontario flights?

You could potentially save up to 16% 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	5h 54m
Direct flights	Every day
Airports in Ontario	1 airport

The fastest flight from Pennsylvania to Ontario takes 5h 54m

Direct flights go from Pennsylvania to Ontario every day.

There is 1 airport in Ontario. From Pennsylvania there are direct flights to Ontario (ONT).

Search flight deals

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?
As of March 2026, there are 6 operators available to choose from 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
Frontier	PriceFrom $155	Free Cancellation	Rating 5.7 3,013 reviews	Search Frontier flights
Delta	PriceFrom $208	Free Cancellation	Rating 7.9 8,356 reviews	Search Delta flights
American Airlines	PriceFrom $286	Free Cancellation	Rating 7.1 11,520 reviews	Search American Airlines flights
United Airlines	PriceFrom $296	Free Cancellation	Rating 7.4 9,499 reviews	Search United Airlines flights
Southwest	PriceFrom $350	Free Cancellation	Rating 8.0 4,333 reviews	Search Southwest 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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Cheap flights from Pennsylvania to Los Angeles from $79

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 4/14. 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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How to get the cheapest flight ticket from Pennsylvania to Ontario

What is the cheapest month to fly to Ontario?

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

Can stopping save me money on Pennsylvania to Ontario flights?

What is the cheapest airline that flies from Pennsylvania to Ontario?

What airlines fly to Ontario?

How long does it take to fly to Ontario?

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

Direct flights

Airports in Ontario

Best airlines flying from Pennsylvania to Ontario

Compare and see reviews for airlines that fly from Pennsylvania to Ontario with momondo

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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