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$100+ Cheap flights from Pennsylvania to Ontario (ONT)

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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ONT
يونيو 22 — يونيو 291
ح 6/22
ح 6/29
1 adult, Economy
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Cheap flight deals from Pennsylvania to Ontario

Keep the following information in mind while searching for Pennsylvania to Ontario flight deals. Data was last updated يونيو 17, 2025.

Round-trip from

$198
(Cheapflightsfares)

One-way from

$100
(Frontier)

Popular in

December

Cheapest in

September

Average price

$299
From Pennsylvania to Ontario
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One-way flight from Pennsylvania to Ontario
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Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Pennsylvania to Ontario

Cheapest flights from Pennsylvania to Ontario
Explore the most affordable flight options available from Pennsylvania to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on يونيو 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 6/307:19 amPHL - ONT
1 stop7h 33mFrontier
ج 7/47:36 pmONT - PHL
1 stop7h 13mFrontier
Deal found 6/15$198
This Frontier deal was found by Cheapflights users on 6/15. 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.
ن 6/305:40 pmPIT - ONT
1 stop9h 10mFrontier
خ 7/312:59 amONT - PIT
1 stop12h 41mFrontier
Deal found 6/15$200
This FlightHub deal was found by Cheapflights users on 6/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ر 7/26:00 pmDCA - ONT
1 stop8h 50mFrontier
ث 7/85:21 pmONT - DCA
1 stop25h 36mFrontier
Deal found 6/15$215
This JetBlue deal was found by Cheapflights users on 6/15. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ج 9/56:35 pmJFK - ONT
Nonstop5h 54mJetBlue
ن 9/1510:56 pmONT - JFK
Nonstop5h 22mJetBlue
Deal found 6/15$233
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
خ 8/146:30 amLGA - ONT
2 stops9h 10mSouthwest
ث 8/195:45 amONT - LGA
2 stops8h 35mSouthwest
Deal found 6/15$249
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ر 8/67:20 amJFK - ONT
1 stop7h 12mAmerican Airlines
ن 8/1111:59 pmONT - JFK
1 stop8h 53mAmerican Airlines
Deal found 6/14$253
This Cheapflightsfares deal was found by Cheapflights users on 6/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ج 6/206:59 amJFK - ONT
1 stop7h 53mFrontier
ر 7/27:36 pmONT - JFK
1 stop6h 54mFrontier
Deal found 6/15$257
This Frontier deal was found by Cheapflights users on 6/15. 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.
ج 6/207:30 amIAD - ONT
1 stop7h 22mFrontier
ث 6/245:13 pmONT - IAD
1 stop10h 17mFrontier
Deal found 6/15$259
This Trip.com deal was found by Cheapflights users on 6/15. 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.
ن 7/145:40 pmPIT - ONT
1 stop9h 10mMultiple Airlines
خ 7/176:00 amONT - PIT
1 stop9h 10mMultiple Airlines
Deal found 6/15$264
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 7/153:25 pmLGA - ONT
1 stop9h 46mUnited Airlines
ث 7/221:34 pmONT - LGA
1 stop7h 10mUnited Airlines
Deal found 6/16$267
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 9/163:00 pmJFK - ONT
1 stop10h 41mDelta
ن 9/2210:59 pmONT - JFK
1 stop7h 46mDelta
Deal found 6/16$267
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 7/156:05 amEWR - ONT
1 stop9h 27mUnited Airlines
ث 7/226:39 pmONT - EWR
1 stop7h 58mUnited Airlines
Deal found 6/16$267

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated يونيو 17, 2025.
Use the filters below to find and compare flights from Pennsylvania to Ontario that are best for you.

Fly from

Pennsylvania

Fly to

Ontario

Route

Depart

Return

Price

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

ن 6/30

7:19 am-11:52 am

1 stop7h 33m

Ontario

ج 7/4

7:36 pm-5:49 am

1 stop7h 13m

$198

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

ن 6/30

5:40 pm-11:50 pm

1 stop9h 10m

Ontario

خ 7/3

12:59 am-4:40 pm

1 stop12h 41m

$200

Washington, D.C.Ontario

DCA - ONT

DCAONT

Washington, D.C. Reagan-National

ر 7/2

6:00 pm-11:50 pm

1 stop8h 50m

Ontario

ث 7/8

5:21 pm-9:57 pm

1 stop25h 36m

$215

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

ج 9/5

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

ن 9/15

10:56 pm-7:18 am

Nonstop5h 22m

$233

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

خ 8/14

6:30 am-12:40 pm

2 stops9h 10m

Ontario

ث 8/19

5:45 am-5:20 pm

2 stops8h 35m

$249

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

ر 8/6

7:20 am-11:32 am

1 stop7h 12m

Ontario

ن 8/11

11:59 pm-11:52 am

1 stop8h 53m

$253

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

ج 7/4

1:10 pm-7:14 pm

1 stop9h 04m

Ontario

ر 7/30

7:22 pm-5:30 am

1 stop7h 08m

$262

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

ن 7/14

5:40 pm-11:50 pm

1 stop9h 10m

Ontario

خ 7/17

6:00 am-6:10 pm

1 stop9h 10m

$264

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

ث 7/15

3:25 pm-10:11 pm

1 stop9h 46m

Ontario

ث 7/22

1:34 pm-11:44 pm

1 stop7h 10m

$267

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

ث 9/16

12:25 pm-7:42 pm

1 stop10h 17m

Ontario

ر 9/24

12:00 pm-12:52 am

1 stop9h 52m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

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

Have a flexible travel schedule? Discover the best time to fly to Ontario from Pennsylvania 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 Pennsylvania to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Pennsylvania to Ontario (average of $246). Flying from Pennsylvania to Ontario in March is currently the most expensive (average of $328). 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 PA to ONT?

Find hourly flight availability from Pennsylvania to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated يونيو 17, 2025.

When flying from Pennsylvania to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated يونيو 17, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Pennsylvania to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,501 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,801 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Ontario. 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 into for flights to Ontario from Pennsylvania?

    Ontario (ONT) is the airport you will fly into if you book a flight from Pennsylvania to Ontario. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

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

    $100 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $134 and $134, respectively.

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

    Most travelers choose New York John F Kennedy Intl - Ontario, Newark - Ontario or New York LaGuardia - Ontario when deciding on the best route from Pennsylvania to Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania to Ontario 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 Pennsylvania to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Pennsylvania to Ontario (average of $246). Flying from Pennsylvania to Ontario in March is currently the most expensive (average of $328). 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 Pennsylvania to Ontario

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

Discover the top 6 airlines that operate flights from Pennsylvania to Ontario. 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 يونيو 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$264FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$152Average$193FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$268Average$487FlexibilityNo cancel feeOn-time71%
DeltaCheapest$280Average$471FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$303Average$420FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$305Average$457FlexibilityNo cancel feeOn-time69%

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