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Pennsylvania

$85+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Ontario to Pennsylvania

Keep the following information in mind while searching for Ontario to Pennsylvania flight deals. Data was last updated September 11, 2025.

Round-trip from

$164
(CheapOair)

One-way from

$85
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$272
From Ontario to Pennsylvania
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One-way flight from Ontario to Pennsylvania
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Highest demand for flights based on searches. 10% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This CheapOair deal was found by Cheapflights users on 9/10. 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 9/248:59 pmONT - PHL
1 stop24h 58mFrontier
Sat 10/46:45 amPHL - ONT
1 stop27h 38mFrontier
Deal found 9/10$164
This CheapOair deal was found by Cheapflights users on 9/10. 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 11/126:53 amONT - PHL
1 stop18h 56mFrontier
Sun 11/167:00 amPHL - ONT
1 stop10h 45mFrontier
Deal found 9/10$165
This CheapOair deal was found by Cheapflights users on 9/10. 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.
Tue 9/238:59 pmONT - PHL
1 stop23h 44mFrontier
Fri 10/36:45 amPHL - ONT
1 stop16h 09mFrontier
Deal found 9/10$173
This CheapOair deal was found by Cheapflights users on 9/11. 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.
Thu 9/188:59 pmONT - PHL
1 stop24h 58mFrontier
Thu 9/258:10 amPHL - ONT
1 stop10h 19mFrontier
Deal found 9/11$180
This CheapOair deal was found by Cheapflights users on 9/9. 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.
Thu 9/258:59 pmONT - PHL
1 stop24h 58mFrontier
Sat 10/46:45 amPHL - ONT
1 stop27h 38mFrontier
Deal found 9/9$184
This CheapOair deal was found by Cheapflights users on 9/11. 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.
Thu 10/94:17 pmONT - PHL
1 stop30h 24mFrontier
Sun 10/1211:30 amPHL - ONT
1 stop23h 19mFrontier
Deal found 9/11$186
This CheapOair deal was found by Cheapflights users on 9/10. 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 10/306:53 amONT - PHL
1 stop18h 56mFrontier
Sun 11/28:00 amPHL - ONT
1 stop10h 22mFrontier
Deal found 9/10$192
This CheapOair deal was found by Cheapflights users on 9/10. 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 11/612:05 pmONT - PHL
1 stop13h 44mFrontier
Sun 11/910:48 pmPHL - ONT
1 stop11h 41mFrontier
Deal found 9/10$197
This CheapOair deal was found by Cheapflights users on 9/10. 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.
Tue 9/308:59 pmONT - PHL
1 stop23h 44mFrontier
Fri 10/36:45 amPHL - ONT
1 stop16h 09mFrontier
Deal found 9/10$198
This CheapOair deal was found by Cheapflights users on 9/11. 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.
Fri 10/314:05 pmONT - PHL
1 stop9h 44mFrontier
Sun 11/28:00 amPHL - ONT
1 stop10h 22mFrontier
Deal found 9/11$199
This CheapOair deal was found by Cheapflights users on 9/10. 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.
Fri 11/74:05 pmONT - PHL
1 stop9h 44mFrontier
Mon 11/106:19 amPHL - ONT
1 stop7h 51mFrontier
Deal found 9/10$205
This CheapOair deal was found by Cheapflights users on 9/11. 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 9/178:59 pmONT - PHL
1 stop24h 58mFrontier
Thu 9/258:10 amPHL - ONT
1 stop10h 19mFrontier
Deal found 9/11$207

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 September 11, 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

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 11/6

12:05 pm-4:49 am

1 stop13h 44m

Philadelphia

Tue 11/11

5:35 pm-11:50 pm

2 stops33h 15m

$210

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Fri 11/7

4:05 pm-4:49 am

1 stop9h 44m

Philadelphia

Sat 11/8

6:26 pm-11:10 am

2 stops19h 44m

$210

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 10/25

11:05 am-11:45 pm

1 stop9h 40m

Pittsburgh

Tue 10/28

1:10 pm-5:45 pm

1 stop7h 35m

$230

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 9/30

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Fri 10/3

6:35 pm-9:29 pm

Nonstop5h 54m

$232

OntarioWashington, D.C.

ONT - DCA

ONTDCA

Ontario

Sat 12/6

10:50 am-8:20 pm

1 stop6h 30m

Washington, D.C. Reagan-National

Tue 12/9

3:20 pm-10:05 pm

2 stops9h 45m

$232

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 10/8

5:30 am-3:30 pm

1 stop7h 00m

New York LaGuardia

Tue 10/14

6:05 am-1:30 pm

1 stop10h 25m

$233

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 9/27

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Tue 9/30

6:35 pm-9:29 pm

Nonstop5h 54m

$236

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sun 9/28

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Sat 10/4

6:35 pm-9:29 pm

Nonstop5h 54m

$242

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 9/27

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Fri 10/3

6:35 pm-9:29 pm

Nonstop5h 54m

$242

OntarioWashington, D.C.

ONT - DCA

ONTDCA

Ontario

Sat 9/27

8:59 pm-12:10 pm

1 stop12h 11m

Washington, D.C. Reagan-National

Tue 10/7

6:31 pm-11:50 pm

1 stop8h 19m

$243

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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, August is the cheapest month in which you can book a flight from Ontario to Pennsylvania (average of $236). Flying from Ontario to Pennsylvania in March is currently the most expensive (average of $295). 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 September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Pennsylvania as you normally would.

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 September 11, 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
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 JetBlue fly from Ontario to Pennsylvania in about 5h 22m. The time it takes to get you to your destination can typically vary by up to 8h 22m. The distance between Ontario and Pennsylvania is about 2422 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 $97. Southwest flights start at $100 while deals on Hawaiian Airlines start at $121 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, August is the cheapest month in which you can book a flight from Ontario to Pennsylvania (average of $236). Flying from Ontario to Pennsylvania in March is currently the most expensive (average of $295). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$88Average$160FlexibilityNo cancel feeOn-time65%
FrontierCheapest$149Average$243FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$286Average$533FlexibilityNo cancel feeOn-time69%
DeltaCheapest$296Average$460FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$306Average$464FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$306Average$523FlexibilityNo cancel feeOn-time71%

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