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Cheap flights from Ontario to Philadelphia (ONT - PHL) from $90

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — PHL
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
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The best prices from Ontario to Philadelphia are usually found in September or January, booked 31 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Ontario to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Philadelphia (PHL). 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 June 6, 2024.

Popular in

December

Cheapest in

September

Round-trip from

$227

One-way from

$140
High demand for flights, 36% potential price rise
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Best time to find cheap flights, 21% potential price drop
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From Ontario to Philadelphia
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One-way flight from Ontario to Philadelphia
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What is the cheapest day to fly round-trip from Ontario to Philadelphia?

Monday is generally a great day to depart. Flying on this day could help you save up to 43%.

How far in advance should I book a flight from Ontario to Philadelphia?

Users have found that booking a flight from Ontario to Philadelphia at least 58 days early can save you up to 28% on average compared to booking a flight this week. If booking 58 days before your flight isn’t an option for you, users have found flights from Ontario to Philadelphia for as little as $380 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $494 for flights departing within the next 3 days.

What is the cheapest month to fly from Ontario to Philadelphia?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, October can be a great choice for travel to Philadelphia. Flights to Philadelphia from Ontario in October are about $410 on average during October, but can be found for as low as $158.

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

Unlike in the morning, when flights are generally more expensive, you can save up to 22% on flights from Ontario to Philadelphia by exploring options for tickets in the afternoon.

Cheap Ontario to Philadelphia flights in June & July 2024

Find cheap flight options from Ontario to Philadelphia specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
Check out some of the best flight deals from Ontario to Philadelphia in 2024. Check back regularly for other flight deals.
Mon 7/812:49 amONT - PHL
1 stop25h 49mFrontier
Tue 7/168:38 pmPHL - ONT
1 stop30h 01mFrontier
Deal found 6/6$195
Tue 7/912:59 amONT - PHL
1 stop25h 36mFrontier
Tue 7/168:38 pmPHL - ONT
1 stop13h 39mFrontier
Deal found 6/6$196
Wed 7/107:38 pmONT - PHL
1 stop7h 02mFrontier
Wed 7/2410:00 amPHL - ONT
1 stop10h 18mFrontier
Deal found 6/6$198
Tue 7/98:27 amONT - PHL
1 stop18h 11mFrontier
Mon 7/157:27 pmPHL - ONT
1 stop15h 00mFrontier
Deal found 6/6$199
Mon 6/109:36 pmONT - PHL
1 stop29h 00mFrontier
Tue 6/188:30 pmPHL - ONT
1 stop13h 32mFrontier
Deal found 6/5$200
Sun 6/3012:59 amONT - PHL
1 stop25h 27mFrontier
Sat 7/138:00 amPHL - ONT
1 stop26h 03mFrontier
Deal found 6/6$206
Sun 6/3012:59 amONT - PHL
1 stop25h 27mFrontier
Sat 7/138:00 amPHL - ONT
1 stop10h 36mFrontier
Deal found 6/6$207
Sat 6/159:44 amONT - PHL
1 stop16h 52mFrontier
Thu 6/208:30 pmPHL - ONT
1 stop30h 10mFrontier
Deal found 6/5$208
Mon 7/812:49 amONT - PHL
1 stop25h 49mFrontier
Sat 7/138:00 amPHL - ONT
1 stop26h 03mFrontier
Deal found 6/6$210

Ontario to Philadelphia 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Philadelphia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Check out some of the best flight deals from Ontario to Philadelphia in 2024. Check back regularly for other flight deals.
Wed 8/1412:49 amONT - PHL
1 stop25h 48mFrontier
Mon 8/268:34 pmPHL - ONT
1 stop18h 58mFrontier
Deal found 6/5$176
Wed 8/146:57 amONT - PHL
1 stop7h 36mFrontier
Mon 8/198:34 pmPHL - ONT
1 stop30h 05mFrontier
Deal found 6/5$177
Tue 9/1712:49 amONT - PHL
1 stop25h 48mFrontier
Tue 9/248:24 amPHL - ONT
1 stop7h 23mFrontier
Deal found 6/5$179
Sat 8/176:57 amONT - PHL
1 stop7h 36mFrontier
Fri 8/238:34 pmPHL - ONT
1 stop12h 56mFrontier
Deal found 6/6$180
Fri 8/3012:49 amONT - PHL
1 stop13h 59mFrontier
Mon 9/28:34 pmPHL - ONT
1 stop30h 05mFrontier
Deal found 6/6$181
Fri 8/308:27 pmONT - PHL
1 stop18h 21mFrontier
Mon 9/28:34 pmPHL - ONT
1 stop30h 05mFrontier
Deal found 6/4$182
Thu 9/2612:49 amONT - PHL
1 stop25h 48mFrontier
Mon 9/308:34 pmPHL - ONT
1 stop30h 05mFrontier
Deal found 6/4$184
Thu 9/55:30 pmONT - PHL
1 stop10h 19mFrontier
Tue 9/176:38 pmPHL - ONT
1 stop14h 29mFrontier
Deal found 6/4$188
Tue 8/65:16 pmONT - PHL
1 stop11h 36mFrontier
Tue 8/206:38 pmPHL - ONT
1 stop14h 29mFrontier
Deal found 6/6$189

Ontario to Philadelphia flights leaving soon

Find last-minute flight options from Ontario to Philadelphia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Check out these flights departing soon from Ontario to Philadelphia. To prevent any unwanted surprises, users should verify their flight info before booking.
Mon 6/109:36 pmONT - PHL
1 stop29h 00mFrontier
Tue 6/188:30 pmPHL - ONT
1 stop13h 32mFrontier
Deal found 6/5$200
Sat 6/159:44 amONT - PHL
1 stop16h 52mFrontier
Thu 6/208:30 pmPHL - ONT
1 stop30h 10mFrontier
Deal found 6/5$208
Fri 6/710:23 pmONT - PHL
1 stop28h 13mFrontier
Wed 6/1212:49 pmPHL - ONT
1 stop14h 00mFrontier
Deal found 6/5$213
Fri 6/710:23 pmONT - PHL
1 stop28h 13mFrontier
Fri 6/148:30 pmPHL - ONT
1 stop30h 19mFrontier
Deal found 6/5$233
Sat 6/159:44 amONT - PHL
1 stop16h 52mFrontier
Sat 6/298:50 amPHL - ONT
1 stop8h 19mFrontier
Deal found 6/5$238
Fri 6/1410:23 pmONT - PHL
1 stop28h 13mFrontier
Thu 6/208:30 pmPHL - ONT
1 stop30h 10mFrontier
Deal found 6/5$239
Sat 6/87:15 pmONT - PHL
1 stop7h 17mFrontier
Wed 6/128:27 pmPHL - ONT
1 stop30h 32mFrontier
Deal found 6/5$240
Fri 6/1412:44 amONT - PHL
1 stop25h 52mFrontier
Tue 6/188:30 pmPHL - ONT
1 stop13h 32mFrontier
Deal found 6/6$241
Sun 6/99:40 pmONT - PHL
1 stop29h 58mFrontier
Tue 6/118:30 pmPHL - ONT
1 stop30h 19mFrontier
Deal found 6/5$243

One-way flights to Philadelphia from Ontario

Search for one-way flight options from Ontario to Philadelphia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Users traveling one-way from Ontario to Philadelphia can select one of these great deals. Users can also find round-trip Ontario to Philadelphia flights by using the search form above.
Thu 9/56:57 amONT - PHL
1 stop7h 36mFrontier
Deal found 6/5$90
Wed 8/146:57 amONT - PHL
1 stop7h 36mFrontier
Deal found 6/5$94
Fri 9/612:49 amONT - PHL
1 stop13h 59mFrontier
Deal found 6/6$96
Wed 7/107:38 pmONT - PHL
1 stop7h 02mFrontier
Deal found 6/6$99
Mon 9/212:49 amONT - PHL
1 stop25h 48mFrontier
Deal found 6/5$100
Wed 6/128:03 amONT - PHL
1 stop18h 30mFrontier
Deal found 6/5$101
Fri 9/68:27 pmONT - PHL
1 stop18h 21mFrontier
Deal found 6/5$102
Mon 7/157:19 amONT - PHL
1 stop18h 20mFrontier
Deal found 6/6$109
Sun 6/3012:59 amONT - PHL
1 stop8h 19mFrontier
Deal found 6/5$110

Find flights from Ontario to Philadelphia within your budget

Customize your flight search to find flights from Ontario to Philadelphia 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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$176 - $280

Route

Depart

Return

Price

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Wed 8/14

1 stop25h 48m

Philadelphia

Mon 8/26

1 stop18h 58m

$176

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Wed 8/14

1 stop7h 36m

Philadelphia

Mon 8/19

1 stop30h 05m

$177

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Tue 9/17

1 stop25h 48m

Philadelphia

Tue 9/24

1 stop7h 23m

$179

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Wed 9/4

1 stop7h 36m

Philadelphia

Thu 9/5

1 stop14h 29m

$180

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Wed 9/4

1 stop14h 19m

Philadelphia

Sun 9/8

1 stop23h 03m

$181

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Fri 8/30

1 stop18h 21m

Philadelphia

Mon 9/2

1 stop30h 05m

$182

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 9/26

1 stop25h 48m

Philadelphia

Mon 9/30

1 stop30h 05m

$184

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 9/5

1 stop10h 19m

Philadelphia

Tue 9/17

1 stop14h 29m

$188

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Fri 6/21

1 stop7h 33m

Philadelphia

Mon 6/24

1 stop6h 56m

$280

Flights are sorted by cheapest first

Deals found on 6/5

How far ahead should I book a flight from Ontario to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Philadelphia. Price data was last updated on May 31, 2024.
The best time to book flights from Ontario to Philadelphia is 31 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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What is the cheapest day to fly from Ontario to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Philadelphia. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Philadelphia flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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Best time to book a flight from Ontario to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia 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.

Temperature and rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature and rainfall totals by month.

PHL

Temperature

33.8 - 78.8 °F

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July 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 January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated June 6, 2024.
Read through reviews of airlines operating flights from Ontario to Philadelphia, such as Frontier, Delta and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Food

7.3

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.2
Very good
5,918 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Food

7.3

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.1
Very good
9,222 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Food

7.3

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
10,368 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Food

7.3

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
10,696 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Food

7.3

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.3
Good
14,227 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Food

7.3

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.8

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

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

  • Can I find flights from Ontario to Philadelphia for under $200 on Cheapflights?

    Yes, there are multiple flights from Ontario to Philadelphia for under $200. The cheapest flight booked recently is on Frontier for just $176, but on average you can expect to pay $192.

  • Are there last-minute flights available from Ontario to Philadelphia for under $200?

    There are currently 20+ open flights from Ontario to Philadelphia within the next 7 days for less than $200.

  • What is the cheapest airline to fly from Ontario to Philadelphia round-trip?

    Cheapflights users have booked flights from Ontario to Philadelphia round-trip from $176. Frontier is 54% cheaper than the average price of flights available within the next 90 days to this destination.

  • What does ONT to PHL mean?

    ONT stands for Ontario Airport, while PHL stands for Philadelphia Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Ontario to Philadelphia that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Philadelphia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Philadelphia with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Philadelphia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Ontario to Philadelphia that allow pets onboard?

    Many airlines flying from Ontario to Philadelphia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Philadelphia?

    Yes, you can often find last-minute deals on Ontario to Philadelphia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Philadelphia flight deals updated?

    The Ontario to Philadelphia flight deals you see on this page were last updated on 6/6.

  • What are the most popular airlines that fly from Ontario to Philadelphia?

    Before booking your flight from Ontario to Philadelphia check out the most popular airlines for this route: American Airlines, Delta or Frontier.

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Philadelphia (average of $227). Flying from Ontario to Philadelphia in July 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

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Alternative routes for Ontario to Philadelphia
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Ontario to Philadelphia

Discover the top 5 airlines that operate flights from Ontario to Philadelphia. 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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$132Average$258FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$167Average$289FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$284Average$447FlexibilityNo cancel feeOn-time71%
DeltaCheapest$297Average$564FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$321Average$544FlexibilityNo cancel feeOn-time69%
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Search flights from Ontario to Philadelphia by cabin class

Find flights from Ontario to Philadelphia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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