$65+ Cheap flights from Ontario to Philadelphia (ONT - PHL)
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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Ontario to Philadelphia 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.The best prices from Ontario to Philadelphia are usually found in January or April, booked 14 days in advance, depart on a Tuesday or Wednesday and return on a Monday
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 January 21, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $130 (Frontier) |
One-way from | $65 (Frontier) |
Popular in | December |
Cheapest in | January |
Average price | $315 |
Find flight deals from Ontario to Philadelphia
Cheapest flights from Ontario to PhiladelphiaExplore the most affordable flight options available from Ontario to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
Explore the most affordable flight options available from Ontario to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
This Frontier deal was found by Cheapflights users on 1/20. 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.
This Delta deal was found by Cheapflights users on 1/21. 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.
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 1/20. 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.
This Southwest deal was found by Cheapflights users on 1/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 2,558,603 searches. Data last updated January 21, 2025.
Fly from
Fly to
Route
Depart
Return
Price
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Sat 2/15
8:29 pm-7:38 am
1 stop8h 09m
Philadelphia
Sat 2/22
8:00 am-7:09 pm
1 stop14h 09m
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Sat 2/8
1:00 pm-10:52 pm
1 stop6h 52m
Philadelphia
Wed 2/12
5:40 am-11:50 am
1 stop9h 10m
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Thu 2/13
12:50 pm-11:47 pm
1 stop7h 57m
Philadelphia
Sat 2/22
10:45 am-6:26 pm
2 stops10h 41m
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Sat 2/8
5:10 am-5:35 pm
2 stops9h 25m
Philadelphia
Wed 2/12
12:15 pm-8:51 pm
2 stops11h 36m
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Thu 2/13
10:55 am-11:10 pm
2 stops9h 15m
Philadelphia
Sat 2/22
2:00 pm-10:15 pm
2 stops11h 15m
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Wed 2/12
12:59 am-11:39 am
1 stop7h 40m
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Sat 2/8
1:00 pm-12:49 am
1 stop8h 49m
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Sat 2/8
10:56 am-11:34 pm
2 stops9h 38m
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Tue 2/25
5:05 am-3:46 pm
1 stop7h 41m
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Wed 3/12
8:40 am-9:50 pm
2 stops10h 10m
Compare providers for flights from Ontario to Philadelphia
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Philadelphia in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Philadelphia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
Travel insights for flights from Ontario to Philadelphia
Get recent, data-driven insights about flights from Ontario to Philadelphia including ideal travel times, pricing trends, and more.
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 January 17, 2025.
The best time to book flights from Ontario to Philadelphia is 14 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.
What is the cheapest month to book a flight from Ontario to Philadelphia?
Currently, August is the cheapest month in which you can book a flight from Ontario to Philadelphia (average of $236). Flying from Ontario to Philadelphia in March is currently the most expensive (average of $295). 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 ONT to PHL?
Find hourly flight availability from Ontario to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.
Unlike at noon, when flights are generally more expensive, you can save up to 29% on flights from Ontario to Philadelphia by exploring options for tickets in the afternoon.
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 December 16, 2024.
Travelers seeking maximum savings on their Ontario to Philadelphia flight should consider departing on Wednesday afternoons 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.
Rainfall in Philadelphia by month
Plan your trip to Philadelphia by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.
Temperature in Philadelphia by month
Plan your trip to Philadelphia by taking into account the average temperature totals by month.
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 January 21, 2025.
Read through reviews of airlines operating flights from Ontario to Philadelphia, such as United Airlines, Frontier and Delta. 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.
Crew
Entertainment
Overall
Boarding
Food
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Crew
Entertainment
Overall
Boarding
Food
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Crew
Entertainment
Overall
Boarding
Food
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Crew
Entertainment
Overall
Boarding
Food
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Crew
Entertainment
Overall
Boarding
Food
Comfort
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Crew
Entertainment
Overall
Boarding
Food
Comfort
Reviews
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.
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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.
Top 6 airlines flying from Ontario to Philadelphia
Discover the top 6 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 2,558,603 searches. Data last updated January 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$125 | Average$239 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$126 | Average$253 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$279 | Average$433 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$280 | Average$429 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$317 | Average$496 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$366 | Average$506 | FlexibilityNo cancel fee | On-time63% |