Pennsylvania

$83+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHL
Apr 16 — Apr 231
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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 March 17, 2026.

This Trip.com deal was found by Cheapflights users on 3/12. 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.
Tue 4/1412:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Sun 4/193:27 pm
PHL
-
ONT
1 stop11h 29m
Frontier
Deal found 3/12$196
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Fri 5/18:41 pm
PHL
-
ONT
1 stop30h 14m
Frontier
Deal found 3/13$200
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Sat 5/28:41 pm
PHL
-
ONT
1 stop13h 45m
Frontier
Deal found 3/13$204
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2412:59 am
ONT
-
DCA
1 stop9h 01m
Frontier
Sat 5/96:00 pm
DCA
-
ONT
1 stop8h 49m
Frontier
Deal found 3/12$206
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Sun 5/38:36 pm
PHL
-
ONT
1 stop13h 55m
Frontier
Deal found 3/13$207
This Vliegwinkel deal was found by Cheapflights users on 3/12. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:59 am
ONT
-
DCA
1 stop9h 01m
Frontier
Sat 5/96:00 pm
DCA
-
ONT
1 stop8h 49m
Frontier
Deal found 3/12$208
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Tue 5/58:35 pm
PHL
-
ONT
1 stop16h 30m
Frontier
Deal found 3/17$209
This Frontier deal was found by Cheapflights users on 3/17. 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.
Tue 4/217:44 pm
ONT
-
PHL
1 stop8h 06m
Frontier
Wed 4/298:00 am
PHL
-
ONT
1 stop13h 49m
Frontier
Deal found 3/17$210
This Expedia deal was found by Cheapflights users on 3/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:59 am
ONT
-
DCA
1 stop9h 01m
Frontier
Tue 4/281:59 pm
DCA
-
ONT
1 stop12h 56m
Frontier
Deal found 3/16$210
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:59 am
ONT
-
PHL
1 stop25h 36m
Frontier
Sat 4/258:41 pm
PHL
-
ONT
1 stop13h 45m
Frontier
Deal found 3/14$211
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:59 am
ONT
-
DCA
1 stop9h 01m
Frontier
Mon 4/201:59 pm
DCA
-
ONT
1 stop12h 56m
Frontier
Deal found 3/13$211
This Booking.com deal was found by Cheapflights users on 3/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Wed 4/298:00 am
PHL
-
ONT
1 stop13h 49m
Frontier
Deal found 3/16$212

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 March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$196
(Trip.com)

One-way from

$83
(Trip.com)

Popular in

December

Cheapest in

July

Average price

$515
Provider with most accurate pricing for Los Angeles Los Angeles-Philadelphia flight deals.
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-Philadelphia flights.
From Ontario to Pennsylvania
One-way flight from Ontario to Pennsylvania
Highest demand for flights based on searches. 19% potential increase in price ($103 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in March 2026

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 March 17, 2026.
Use the filters below to find and compare flights from Ontario to Pennsylvania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 4/25

1:20 pm-11:20 pm

1 stop7h 00m

New York LaGuardia

Wed 4/29

6:05 am-1:30 pm

1 stop10h 25m

$281
Quickest round-trip

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 5/26

10:00 pm-6:16 am

Nonstop5h 16m

New York John F Kennedy Intl

Fri 5/29

5:30 pm-8:45 pm

Nonstop6h 15m

$292

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Mon 5/18

11:25 pm-7:50 am

Nonstop5h 25m

New York John F Kennedy Intl

Sat 5/23

5:30 pm-8:45 pm

Nonstop6h 15m

$297

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 4/24

12:49 pm-11:41 pm

1 stop7h 52m

New York LaGuardia

Sat 5/2

4:00 pm-9:00 pm

1 stop8h 00m

$299

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 5/12

10:00 pm-10:46 am

1 stop9h 46m

New York LaGuardia

Tue 5/19

1:55 pm-11:34 pm

2 stops12h 39m

$306

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 4/18

5:30 am-3:50 pm

1 stop7h 20m

Pittsburgh

Sat 4/25

5:05 pm-8:45 pm

1 stop6h 40m

$317

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 4/14

12:40 pm-10:55 pm

1 stop7h 15m

Pittsburgh

Sat 4/18

3:25 pm-9:20 pm

1 stop8h 55m

$317

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 4/17

12:49 pm-11:41 pm

1 stop7h 52m

New York LaGuardia

Sat 4/25

12:00 pm-6:33 pm

1 stop9h 33m

$318

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 4/24

1:29 pm-11:59 pm

1 stop7h 30m

New York John F Kennedy Intl

Tue 4/28

6:20 am-11:36 am

1 stop8h 16m

$319

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Fri 4/10

11:55 pm-3:35 pm

1 stop12h 40m

New York LaGuardia

Mon 4/13

6:00 am-1:15 pm

1 stop10h 15m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $92). Flying from Ontario to Pennsylvania in March is currently the most expensive (average of $209). 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.

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 March 17, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Ontario to Pennsylvania. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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 JetBlue fly from Ontario to Pennsylvania in about 5h 16m. The time it takes to get you to your destination can typically vary by up to 8h 26m. 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 most popular routes from Ontario to Pennsylvania?

  • 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 $92). Flying from Ontario to Pennsylvania in March is currently the most expensive (average of $209). 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

Browse thousands of different options on Cheapflights for your next trip

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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.

Top 5 airlines flying from Ontario to Pennsylvania

Discover the top 5 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 March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$157Average$260FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$285Average$435FlexibilityNo cancel feeOn-time71%
DeltaCheapest$296Average$451FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$306Average$441FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$310Average$445FlexibilityNo cancel feeOn-time69%

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