HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$64+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ONT
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pennsylvania to Ontario with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Pennsylvania to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Pennsylvania (USPA) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

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 November 21, 2024.

This CheapOair deal was found by Cheapflights users on 11/20. 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 12/186:40 amPHL - ONT
1 stop20h 19mFrontier
Tue 12/2412:59 amONT - PHL
1 stop25h 10mFrontier
Deal found 11/20$178
This Frontier deal was found by Cheapflights users on 11/19. 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.
Sun 12/87:59 amJFK - ONT
1 stop15h 00mFrontier
Fri 1/316:47 pmONT - JFK
1 stop8h 43mFrontier
Deal found 11/19$188
This Frontier deal was found by Cheapflights users on 11/20. 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 12/1110:00 pmLGA - ONT
1 stop12h 56mFrontier
Fri 12/1310:39 amONT - LGA
1 stop8h 21mFrontier
Deal found 11/20$188
This Trip.com deal was found by Cheapflights users on 11/20. 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 12/176:00 pmDCA - ONT
1 stop8h 59mFrontier
Thu 12/2612:59 amONT - DCA
1 stop8h 09mFrontier
Deal found 11/20$204
This Delta deal was found by Cheapflights users on 11/20. 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.
Fri 12/66:00 pmLGA - ONT
1 stop8h 16mDelta
Tue 12/1010:00 pmONT - LGA
1 stop7h 44mDelta
Deal found 11/20$276
This Delta deal was found by Cheapflights users on 11/20. 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.
Fri 12/66:48 pmEWR - ONT
1 stop8h 26mDelta
Tue 12/1010:00 pmONT - EWR
1 stop10h 03mDelta
Deal found 11/20$276
This American Airlines deal was found by Cheapflights users on 11/20. 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.
Fri 12/63:59 pmJFK - ONT
1 stop9h 14mAmerican Airlines
Tue 12/1010:42 amONT - JFK
1 stop7h 47mAmerican Airlines
Deal found 11/20$283
This Delta deal was found by Cheapflights users on 11/20. 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.
Wed 12/116:00 amPIT - ONT
1 stop8h 01mDelta
Tue 1/76:00 amONT - PIT
1 stop7h 40mDelta
Deal found 11/20$316
This CheapOair deal was found by Cheapflights users on 11/20. 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 12/2210:07 pmPIT - ONT
1 stop28h 52mFrontier
Wed 12/2512:59 amONT - PIT
1 stop17h 07mFrontier
Deal found 11/20$334
This Delta deal was found by Cheapflights users on 11/20. 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.
Wed 12/116:55 amIAD - ONT
1 stop8h 30mDelta
Sat 1/117:00 amONT - IAD
1 stop7h 02mDelta
Deal found 11/20$336
This Delta deal was found by Cheapflights users on 11/21. 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.
Wed 12/116:00 amDCA - ONT
1 stop8h 01mDelta
Tue 1/76:00 amONT - DCA
2 stops9h 57mDelta
Deal found 11/21$341
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Tue 12/107:45 amEWR - ONT
1 stop9h 48mUnited Airlines
Tue 12/176:10 amONT - EWR
1 stop8h 46mUnited Airlines
Deal found 11/20$343

Find flights from Pennsylvania to Ontario within your budget

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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 1/9

4:41 pm-9:39 am

1 stop19h 58m

Ontario

Wed 1/15

7:45 am-3:44 pm

1 stop28h 59m

$149

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Wed 12/18

6:40 am-11:59 pm

1 stop20h 19m

Ontario

Tue 12/24

12:59 am-5:09 am

1 stop25h 10m

$178

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 2/12

7:59 am-7:26 am

1 stop26h 27m

Ontario

Sun 2/16

10:34 am-6:30 am

1 stop16h 56m

$185

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 12/11

10:00 pm-7:56 am

1 stop12h 56m

Ontario

Fri 12/13

10:39 am-10:00 pm

1 stop8h 21m

$188

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 2/26

7:59 am-3:19 pm

1 stop10h 20m

Ontario

Tue 3/4

6:00 am-7:29 pm

1 stop10h 29m

$197

Washington, D.C.Ontario

DCA - ONT

DCAONT

Washington, D.C. Reagan-National

Wed 2/19

1:03 pm-12:09 am

1 stop14h 06m

Ontario

Sat 2/22

12:59 am-12:03 pm

1 stop8h 04m

$201

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mon 1/27

4:14 pm-10:16 pm

1 stop9h 02m

Ontario

Thu 1/30

10:56 am-9:03 pm

1 stop7h 07m

$214

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Sat 1/11

2:00 pm-9:57 pm

1 stop10h 57m

Ontario

Sat 1/18

6:00 am-4:26 pm

1 stop7h 26m

$242

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 2/5

11:30 am-8:13 pm

1 stop11h 43m

Ontario

Sun 2/9

6:00 am-5:59 pm

1 stop8h 59m

$245

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Fri 1/24

9:10 am-6:24 pm

2 stops12h 14m

Ontario

Sat 2/1

12:48 pm-10:59 pm

1 stop7h 11m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 60 results
1
2
3
...
6

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.

Travel insights for flights from Pennsylvania to Ontario

Get recent, data-driven insights about flights from Pennsylvania to Ontario including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Pennsylvania to Ontario (average of $236). Flying from Pennsylvania to Ontario in December is currently the most expensive (average of $298). 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 November 21, 2024.

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 November 21, 2024.
Read reviews from past customers who have flown Frontier, American Airlines and United Airlines from Pennsylvania to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,758 reviews
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.5
Good
3,396 reviews
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,015 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

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?

    $64 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Alaska Airlines, with prices starting from $119 and $128, 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, September is the cheapest month in which you can book a flight from Pennsylvania to Ontario (average of $236). Flying from Pennsylvania to Ontario in December is currently the most expensive (average of $298). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pennsylvania to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Dallas/Fort Worth to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
O'Hare Intl to Los Angeles flights
LaGuardia to Los Angeles flights
Seattle to Los Angeles flights
Seattle to Las Vegas flights
San Francisco to Los Angeles flights
Newark to Las Vegas flights
O'Hare Intl to Las Vegas flights
Newark to San Francisco flights
Atlanta to Las Vegas flights
Minneapolis to Las Vegas flights
Boston to Los Angeles flights
Los Angeles to Las Vegas flights
Hobby to Las Vegas flights
San Francisco to Las Vegas flights
Denver to Las Vegas flights
Los Angeles to San Francisco flights
LaGuardia to Las Vegas flights
Dulles Intl to Los Angeles flights
George Bush Intcntl to Las Vegas flights
Seattle to San Francisco flights
Dulles Intl to Las Vegas flights
Santa Ana to Las Vegas flights
Reagan-National to Los Angeles flights
Baltimore to Las Vegas flights
Burbank to Las Vegas flights
Newark to Santa Ana flights
Boston to Las Vegas flights
LaGuardia to San Francisco flights
Baltimore to Los Angeles flights
Detroit to Las Vegas flights
San Jose to Los Angeles flights
Oakland to Las Vegas flights
Los Angeles to San Jose flights
Seattle to Ontario flights
San Jose to Las Vegas flights
Ontario to San Francisco flights
Los Angeles to Oakland flights
Seattle to San Diego flights
Oakland to Los Angeles flights
John F Kennedy Intl to San Diego flights
Newark to Burbank flights
Love Field to Las Vegas flights
Oakland to Santa Ana flights
Portland to Los Angeles flights

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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$264FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$152Average$280FlexibilityNo cancel feeOn-time65%
DeltaCheapest$259Average$468FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$269Average$521FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$277Average$421FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$280Average$462FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines