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Cheap flights from Philadelphia to Ontario (PHL - ONT) from $77

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 7/24. 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.
PHL — ONT
Jun 16 — Jun 231
From?
To?
Sun 6/16
Sun 6/23
1 adult, Economy
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The best prices from Philadelphia to Ontario are usually found in April or August, booked 20 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Philadelphia to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) 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 June 11, 2024.

Popular in

June

Cheapest in

April

Round-trip from

$238

One-way from

$77
High demand for flights, 21% potential price rise
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Best time to find cheap flights, 27% potential price drop
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From Philadelphia to Ontario
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One-way flight from Philadelphia to Ontario
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What is the cheapest day to fly round-trip from Philadelphia to Ontario?

Flights from Philadelphia to Ontario are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ontario.

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

Travelers have found it’s best to book a flight 55 days in advance to save up to 31% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 55 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Philadelphia to Ontario 1-2 weeks in advance for as low as $372, or $499 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Ontario. Flights to Ontario from Philadelphia in September are about $380 on average during September, but can be found for as low as $159.

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

It’s typically best to fly out from Philadelphia to Ontario in the evening. Doing so could potentially save you 39% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Philadelphia to Ontario flights in June & July 2024

Find cheap flight options from Philadelphia to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,080,152 searches. Prices were last updated on June 11, 2024.
Listed are some of the best fares we've found on flights departing from Philadelphia to Ontario in 2024. For more flight deals, be sure to check back very soon.
Tue 7/95:51 pmPHL - ONT
1 stop9h 08mFrontier
Tue 7/1610:30 pmONT - PHL
1 stop28h 10mFrontier
Deal found 6/9$206
Tue 7/95:51 pmPHL - ONT
1 stop9h 08mFrontier
Mon 7/1512:49 amONT - PHL
1 stop25h 49mFrontier
Deal found 6/9$207
Thu 7/45:51 pmPHL - ONT
1 stop8h 53mFrontier
Sun 7/1412:59 amONT - PHL
1 stop8h 23mFrontier
Deal found 6/9$211
Thu 7/45:51 pmPHL - ONT
1 stop15h 28mFrontier
Mon 7/157:19 amONT - PHL
1 stop18h 20mFrontier
Deal found 6/9$212
Wed 7/2410:00 amPHL - ONT
1 stop10h 18mFrontier
Wed 7/315:16 pmONT - PHL
1 stop9h 24mFrontier
Deal found 6/10$217
Mon 7/18:23 pmPHL - ONT
1 stop30h 36mFrontier
Fri 7/57:19 amONT - PHL
1 stop19h 01mFrontier
Deal found 6/10$220
Mon 7/18:23 pmPHL - ONT
1 stop30h 36mFrontier
Fri 7/57:19 amONT - PHL
1 stop19h 01mFrontier
Deal found 6/10$226
Mon 6/246:41 pmPHL - ONT
1 stop14h 33mFrontier
Mon 7/227:19 amONT - PHL
1 stop18h 20mFrontier
Deal found 6/10$227
Wed 7/108:34 pmPHL - ONT
1 stop30h 22mFrontier
Mon 7/157:19 amONT - PHL
1 stop18h 20mFrontier
Deal found 6/9$229

Philadelphia to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Philadelphia and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,080,152 searches. Data last updated June 11, 2024.
Listed are some of the best fares we've found on flights departing from Philadelphia to Ontario in 2024. For more flight deals, be sure to check back very soon.
Wed 8/146:38 pmPHL - ONT
1 stop14h 29mFrontier
Sat 8/176:57 amONT - PHL
1 stop7h 36mFrontier
Deal found 6/9$180
Sun 8/118:30 pmPHL - ONT
1 stop12h 49mFrontier
Sat 8/176:57 amONT - PHL
1 stop7h 36mFrontier
Deal found 6/9$189
Mon 8/510:29 amPHL - ONT
2 stops16h 20mFrontier
Wed 8/77:30 pmONT - PHL
1 stop7h 05mFrontier
Deal found 6/9$193
Mon 8/510:29 amPHL - ONT
2 stops16h 20mFrontier
Tue 8/67:16 pmONT - PHL
1 stop9h 36mFrontier
Deal found 6/9$194
Tue 7/95:51 pmPHL - ONT
1 stop9h 08mFrontier
Tue 7/1610:30 pmONT - PHL
1 stop28h 10mFrontier
Deal found 6/9$206
Tue 7/95:51 pmPHL - ONT
1 stop9h 08mFrontier
Mon 7/1512:49 amONT - PHL
1 stop25h 49mFrontier
Deal found 6/9$207
Thu 7/45:51 pmPHL - ONT
1 stop8h 53mFrontier
Sun 7/1412:59 amONT - PHL
1 stop8h 23mFrontier
Deal found 6/9$211
Thu 7/45:51 pmPHL - ONT
1 stop15h 28mFrontier
Mon 7/157:19 amONT - PHL
1 stop18h 20mFrontier
Deal found 6/9$212
Thu 8/18:30 pmPHL - ONT
1 stop12h 49mFrontier
Sat 8/246:57 amONT - PHL
1 stop7h 36mFrontier
Deal found 6/9$215

Philadelphia to Ontario flights leaving soon

Find last-minute flight options from Philadelphia to Ontario 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 3,080,152 searches. Data last updated June 11, 2024.
Users seeking a last-minute flight from Philadelphia to Ontario should consider booking one of these fares. To prevent any unwanted surprises, users should verify their flight info before booking.
Wed 6/198:27 pmPHL - ONT
1 stop17h 32mFrontier
Thu 7/47:33 pmONT - PHL
1 stop8h 05mFrontier
Deal found 6/10$233
Wed 6/198:27 pmPHL - ONT
1 stop30h 11mFrontier
Tue 7/25:26 pmONT - PHL
1 stop9h 59mFrontier
Deal found 6/10$253
Mon 6/178:23 pmPHL - ONT
1 stop14h 04mFrontier
Mon 7/18:46 pmONT - PHL
2 stops18h 19mFrontier
Deal found 6/10$254
Fri 6/218:30 pmPHL - ONT
1 stop30h 29mFrontier
Wed 7/3110:30 pmONT - PHL
1 stop29h 25mFrontier
Deal found 6/10$256
Wed 6/198:27 pmPHL - ONT
1 stop30h 11mFrontier
Mon 7/112:59 amONT - PHL
1 stop25h 37mFrontier
Deal found 6/10$259
Mon 6/176:41 pmPHL - ONT
1 stop14h 33mFrontier
Mon 7/112:54 pmONT - PHL
2 stops26h 11mFrontier
Deal found 6/10$261
Tue 6/185:51 pmPHL - ONT
1 stop9h 08mFrontier
Tue 7/210:31 pmONT - PHL
2 stops16h 08mFrontier
Deal found 6/10$262
Mon 6/176:41 pmPHL - ONT
1 stop14h 33mFrontier
Tue 6/1812:59 amONT - PHL
1 stop25h 34mFrontier
Deal found 6/10$265
Mon 6/176:41 pmPHL - ONT
1 stop14h 33mFrontier
Wed 7/310:55 pmONT - PHL
1 stop28h 43mFrontier
Deal found 6/10$268

One-way flights to Ontario from Philadelphia

Search for one-way flight options from Philadelphia to Ontario. 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 3,080,152 searches. Data last updated June 11, 2024.
Some of the best available deals we've found on one-way flights from Philadelphia to Ontario. Those seeking round-trip flights from Philadelphia to Ontario should utilize the search form at the the top of the page.
Wed 7/2410:00 amPHL - ONT
1 stop10h 18mFrontier
Deal found 6/10$77
Tue 8/68:38 pmPHL - ONT
1 stop13h 39mFrontier
Deal found 6/10$82
Sun 9/85:49 pmPHL - ONT
1 stop8h 50mFrontier
Deal found 6/10$88
Tue 7/98:38 pmPHL - ONT
1 stop13h 39mFrontier
Deal found 6/10$90
Tue 8/136:38 pmPHL - ONT
1 stop14h 29mFrontier
Deal found 6/10$93
Sat 8/316:38 pmPHL - ONT
1 stop14h 29mFrontier
Deal found 6/10$94
Wed 8/286:38 pmPHL - ONT
1 stop14h 29mFrontier
Deal found 6/10$96
Tue 9/176:38 pmPHL - ONT
1 stop14h 29mFrontier
Deal found 6/10$100
Sun 8/118:30 pmPHL - ONT
1 stop12h 49mFrontier
Deal found 6/10$102

Find flights from Philadelphia to Ontario within your budget

Customize your flight search to find flights from Philadelphia 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 3,080,152 searches. Data last updated June 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$154 - $329

Route

Depart

Return

Price

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Wed 7/24

1 stop10h 18m

Ontario

Tue 8/6

1 stop7h 47m

$154

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Thu 8/22

1 stop8h 50m

Ontario

Sun 9/15

1 stop7h 36m

$176

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Sat 9/14

1 stop7h 37m

Ontario

Sat 9/21

1 stop7h 14m

$178

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Tue 8/13

1 stop14h 29m

Ontario

Wed 8/21

1 stop7h 36m

$179

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Fri 9/13

1 stop13h 20m

Ontario

Sun 9/15

1 stop7h 36m

$180

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Wed 9/18

1 stop14h 29m

Ontario

Wed 9/25

1 stop9h 04m

$181

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Thu 9/12

1 stop14h 29m

Ontario

Mon 9/16

1 stop25h 48m

$182

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Tue 9/17

1 stop14h 29m

Ontario

Wed 9/25

1 stop9h 04m

$183

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Thu 6/27

1 stop8h 03m

Ontario

Sun 6/30

1 stop7h 33m

$329

Flights are sorted by cheapest first

Deals found on 6/10

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Ontario. Price data was last updated on May 31, 2024.
The best time to book flights from Philadelphia to Ontario is 20 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.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Ontario. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Philadelphia to Ontario flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Philadelphia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Philadelphia 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 Ontario by month

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

LAX

Temperature

57.2 - 73.4 °F

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 June 11, 2024.
Peruse reviews from past customers who have flown with Frontier, American Airlines and Delta from Philadelphia to Ontario to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,889 reviews

Boarding

8.3

Entertainment

7.8

Food

7.3

Overall

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
5,889 reviews
Southwest
8.2
Very good
5,889 reviews

Boarding

8.3

Entertainment

7.8

Food

7.3

Overall

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Alaska Airlines
8.1
Very good
9,267 reviews
Southwest
8.2
Very good
5,889 reviews

Boarding

8.3

Entertainment

7.8

Food

7.3

Overall

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Delta
8.0
Very good
10,277 reviews
Southwest
8.2
Very good
5,889 reviews

Boarding

8.3

Entertainment

7.8

Food

7.3

Overall

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Avianca
7.4
Good
3,544 reviews
Southwest
8.2
Very good
5,889 reviews

Boarding

8.3

Entertainment

7.8

Food

7.3

Overall

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

United Airlines
7.4
Good
10,629 reviews
Southwest
8.2
Very good
5,889 reviews

Boarding

8.3

Entertainment

7.8

Food

7.3

Overall

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Ontario. 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 Philadelphia to Ontario for under $200 on Cheapflights?

    Yes, there are multiple flights from Philadelphia to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $154, but on average you can expect to pay $184.

  • Are there last-minute flights available from Philadelphia to Ontario for under $300?

    There are currently 20+ open flights from Philadelphia to Ontario within the next 7 days for less than $300.

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

    Our cheapest airline available from Philadelphia to Ontario is Frontier. Our recent data shows that you can find tickets from as low as $154 on this airline. Users have found that Frontier is 58% cheaper than the other options available to this destination.

  • What does PHL to ONT mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Philadelphia Airport to Ontario Airport flight would often be abbreviated as a PHL to ONT flight.

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

    The amount of baggage you can bring on your Philadelphia to Ontario 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 Philadelphia to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Philadelphia to Ontario 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 Philadelphia to Ontario that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia 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.

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

    Many airlines flying from Philadelphia to Ontario 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 Philadelphia to Ontario?

    Yes, you can often find last-minute deals on Philadelphia to Ontario 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 Philadelphia to Ontario flight deals updated?

    The Philadelphia to Ontario flight deals you see on this page were last updated on 6/10.

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

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Philadelphia to Ontario.

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

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Ontario (average of $238). Flying from Philadelphia to Ontario in July is currently the most expensive (average of $318). 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 Philadelphia to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Philadelphia to Ontario

Discover the top 5 airlines that operate flights from Philadelphia 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 3,080,152 searches. Data last updated June 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$159Average$300FlexibilityNo cancel feeOn-time65%
FrontierCheapest$180Average$276FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$182Average$485FlexibilityNo cancel feeOn-time69%
DeltaCheapest$259Average$428FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$269Average$423FlexibilityNo cancel feeOn-time71%
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Houston to Phoenix flights
Memphis to Nashville flights
Hawaii to Japan flights
Seattle to Dallas flights
Denver to Detroit flights
Burbank to Las Vegas flights
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Texas to New York flights
Philadelphia to Coolangatta flights

Search flights from Philadelphia to Ontario by cabin class

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