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Pennsylvania

$60+ Cheap flights from Ontario (ONT) to Pennsylvania

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Ontario to Pennsylvania

Cheapest flights from Ontario to Pennsylvania
Explore the most affordable flight options available from Ontario to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This CheapOair deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:00 amONT - PHL
1 stop20h 40mFrontier
Thu 1/17:10 amPHL - ONT
1 stop13h 12mFrontier
Deal found 12/10$184
This Trip.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:15 amONT - JFK
1 stop20h 15mFrontier
Sat 1/107:59 amJFK - ONT
1 stop9h 27mFrontier
Deal found 12/11$197
This CheapOair deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:45 amONT - LGA
1 stop12h 15mFrontier
Wed 1/710:55 pmLGA - ONT
1 stop28h 01mFrontier
Deal found 12/9$204
This Frontier deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:07 pmONT - JFK
1 stop8h 23mFrontier
Sat 1/107:59 amJFK - ONT
1 stop9h 27mFrontier
Deal found 12/9$207
This CheapOair deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:00 amONT - JFK
1 stop20h 30mFrontier
Sat 1/107:59 amJFK - ONT
1 stop26h 37mFrontier
Deal found 12/11$208
This Frontier deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:45 amONT - LGA
1 stop12h 15mFrontier
Sat 1/105:57 pmLGA - ONT
1 stop8h 17mFrontier
Deal found 12/9$227
This CheapOair deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:45 amONT - LGA
1 stop12h 15mFrontier
Mon 1/510:55 pmLGA - ONT
1 stop26h 17mFrontier
Deal found 12/8$228
This CheapOair deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:00 amONT - PHL
1 stop20h 40mFrontier
Mon 1/58:36 pmPHL - ONT
1 stop28h 36mFrontier
Deal found 12/10$228
This CheapOair deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:45 amONT - JFK
1 stop29h 35mFrontier
Wed 1/77:59 amJFK - ONT
1 stop26h 37mFrontier
Deal found 12/10$229
This Mytrip deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:15 amONT - JFK
1 stop20h 15mFrontier
Wed 12/176:59 amJFK - ONT
1 stop17h 18mFrontier
Deal found 12/10$233
This Frontier deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/153:20 pmONT - PHL
1 stop11h 11mFrontier
Thu 1/17:10 amPHL - ONT
1 stop13h 12mFrontier
Deal found 12/10$234
This CheapOair deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:00 amONT - JFK
1 stop20h 30mFrontier
Thu 1/16:59 amJFK - ONT
1 stop13h 23mFrontier
Deal found 12/11$234

Find flight deals from Ontario to Pennsylvania

Keep the following information in mind while searching for Ontario to Pennsylvania flight deals. Data was last updated December 12, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$172
(Kiwi.com)

One-way from

$60
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$562
Provider with most accurate pricing for Los Angeles-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Philadelphia flights.
Search Deals
From Ontario to Pennsylvania
Search Deals
One-way flight from Ontario to Pennsylvania
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Pennsylvania 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, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Ontario to Pennsylvania that are best for you.

Fly from

Ontario

Fly to

Pennsylvania

Route

Depart

Return

Price

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 2/3

6:30 am-4:10 pm

1 stop6h 40m

New York LaGuardia

Sun 2/8

2:00 pm-9:45 pm

1 stop10h 45m

$193

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 2/7

7:16 am-6:10 pm

1 stop7h 54m

New York LaGuardia

Tue 2/10

5:13 pm-10:48 pm

1 stop8h 35m

$193

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sun 2/1

9:45 am-10:30 pm

1 stop9h 45m

New York LaGuardia

Thu 2/5

7:20 am-3:30 pm

1 stop11h 10m

$193

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Mon 1/26

5:15 am-4:25 pm

1 stop8h 10m

New York LaGuardia

Fri 1/30

11:15 am-5:10 pm

1 stop8h 55m

$193

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 1/21

6:50 am-5:30 pm

1 stop7h 40m

New York LaGuardia

Fri 1/23

10:55 am-6:40 pm

1 stop10h 45m

$193

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Mon 1/26

6:30 am-5:50 pm

1 stop8h 20m

New York LaGuardia

Wed 2/4

2:30 pm-9:45 pm

2 stops10h 15m

$198

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 1/28

5:55 am-5:50 pm

2 stops8h 55m

New York LaGuardia

Sun 2/1

7:20 am-3:30 pm

1 stop11h 10m

$198

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 1/20

5:15 am-4:25 pm

1 stop8h 10m

New York LaGuardia

Tue 1/27

6:00 am-2:45 pm

2 stops11h 45m

$198

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Mon 1/26

11:59 pm-11:49 am

2 stops8h 50m

New York LaGuardia

Wed 2/4

10:09 am-6:20 pm

2 stops11h 11m

$203

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 1/16

8:32 am-2:00 pm

1 stop26h 28m

New York LaGuardia

Mon 1/19

10:55 pm-3:07 pm

1 stop19h 12m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Pennsylvania

What is the cheapest month to book a flight from Ontario to Pennsylvania?

Currently, July is the cheapest month in which you can book a flight from Ontario to Pennsylvania (average of $109). Flying from Ontario to Pennsylvania in December is currently the most expensive (average of $197). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to PA?

Find hourly flight availability from Ontario to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 13% on flights from Ontario to Pennsylvania by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Ontario to Pennsylvania?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Pennsylvania. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Pennsylvania flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Ontario to Pennsylvania?

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pennsylvania. Reviews last updated December 12, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Ontario to Pennsylvania. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,084 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Pennsylvania. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Pennsylvania?

    For a flight from Ontario to Pennsylvania, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How long is the flight from Ontario to Pennsylvania?

    Airlines like Frontier, Southwest, and American Airlines fly from Ontario to Pennsylvania in about 6h 40m. The time it takes to get you to your destination can typically vary by up to 20h 06m. The distance between Ontario and Pennsylvania is about 2417 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Ontario to Pennsylvania one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $71. Delta flights start at $138 while deals on American Airlines start at $153 one-way.

  • What are the most popular routes from Ontario to Pennsylvania?

    The most popular route from Ontario to Pennsylvania is Ontario - New York John F Kennedy Intl. You may also consider Ontario - Newark or Ontario - New York LaGuardia.

  • Can I find deals for flights from Ontario to Pennsylvania that include hotel bookings?

    Yes. In addition to deals on Ontario to Pennsylvania flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Pennsylvania?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Pennsylvania.

  • Can I find deals for business class flights from Ontario to Pennsylvania?

    Yes. Cheapflights offers flight deals from Ontario to Pennsylvania by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Pennsylvania?

    Currently, July is the cheapest month in which you can book a flight from Ontario to Pennsylvania (average of $109). Flying from Ontario to Pennsylvania in December is currently the most expensive (average of $197). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Ontario to Pennsylvania

Discover the top 6 airlines that operate flights from Ontario to Pennsylvania. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$88Average$160FlexibilityNo cancel feeOn-time65%
FrontierCheapest$140Average$249FlexibilityNo cancel feeOn-time62%
DeltaCheapest$296Average$437FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$300Average$456FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$306Average$453FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$310Average$489FlexibilityNo cancel feeOn-time69%

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