Cheap flights from Ontario to Philadelphia (ONT - PHL)

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The best prices from Ontario to Philadelphia are usually found in August or September, booked 13 days in advance, depart on a Tuesday or Sunday and return on a Tuesday

How to find the cheapest flight from
Ontario (ONT) to Philadelphia (PHL)

All the information you need to plan the best ONT to PHL flight in 2021: compare Ontario to Philadelphia flight prices with the expected peak season, weather and rainfall in Philadelphia.
ONT - PHL
Price
$232 - $429
PHL
Temperature
33.8 - 78.8 °F
PHL
Precipitation
2.7 - 4.4 inches

Popular in

December

High demand for flights, 29% potential price rise

Cheapest in

August

Best time to find cheap flights, 24% potential price drop

Round-trip from

$232

From Ontario to Philadelphia

One-way from

$64

One-way flight from Ontario to Philadelphia

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
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 18 days early can save you up to 16% on average compared to booking a flight this week. If booking 18 days before your flight isn’t an option for you, users have found flights from Ontario to Philadelphia for as little as $249 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 $302 for flights departing within the next 3 days.

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 29%.

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, August can be a great choice for travel to Philadelphia. Flights to Philadelphia from Ontario in August are about $246 on average during August, but can be found for as low as $99.

When is the cheapest time to fly from Ontario to Philadelphia (ONT - PHL)?

Unlike in the morning, 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.

Cheap flights from Ontario to Philadelphia in October, November 2021

The best prices found for ONT to PHL flights for October, November
30 Oct - 2 Nov
$118pp
ONT
Ontario
Frontier
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Frontier
 
1 STOP
ONT
Ontario
3 Nov - 10 Nov
$128pp
ONT
Ontario
Frontier
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Frontier
 
1 STOP
ONT
Ontario
2 Nov - 9 Nov
$133pp
ONT
Ontario
Frontier
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Frontier
   
2 STOPS
ONT
Ontario

Ontario to Philadelphia 2021 flight deals

Cheap flights to Philadelphia from Ontario found for this year
30 Oct - 2 Nov
$118pp
ONT
Ontario
Frontier
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Frontier
 
1 STOP
ONT
Ontario
3 Nov - 10 Nov
$128pp
ONT
Ontario
Frontier
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Frontier
 
1 STOP
ONT
Ontario
2 Nov - 9 Nov
$133pp
ONT
Ontario
Frontier
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Frontier
   
2 STOPS
ONT
Ontario

Last minute flights from Ontario to Philadelphia

Late deals on round-trip flights to Philadelphia from Ontario, departing today and this week
30 Oct - 2 Nov
$118pp
ONT
Ontario
Frontier
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Frontier
 
1 STOP
ONT
Ontario
30 Oct - 6 Nov
$128pp
ONT
Ontario
Frontier
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Frontier
 
1 STOP
ONT
Ontario
27 Oct - 30 Oct
$138pp
ONT
Ontario
Frontier
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Frontier
   
2 STOPS
ONT
Ontario

One-way flights to Philadelphia from Ontario

The cheapest one-way flights from Ontario to Philadelphia
4:30 am - 5:27 pm
Frontier
1 Stop
9h 57m
ONT - PHL
Frontier
$64
CheapTickets.com
8:08 am - 12:56 am
Frontier
1 Stop
13h 48m
ONT - PHL
Frontier
$70
Orbitz
8:25 am - 12:56 am
Frontier
1 Stop
13h 31m
ONT - PHL
Frontier
$71
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ontario</span> to <span class="emphasized">Philadelphia</span> flights.

Flight FAQs

From Ontario to Philadelphia

Which airlines flying from Ontario to Philadelphia have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines, Frontier, and United Airlines flying from Ontario to Philadelphia have implemented new flexible cancellation policies.

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 $128, but on average you can expect to pay $151.

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.

How popular is this Ontario to Philadelphia flight route?

The Ontario to Philadelphia flight path was viewed by 34 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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 $128. Frontier is 58% cheaper than the average price of flights available within the next 90 days to this destination.

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: Major Airline, American Airlines or Alaska Airlines.

What are the cheapest flights from Ontario to Philadelphia?

While on average a flight from Ontario to Philadelphia is generally $631, our data shows the cheapest flight currently is $107. When looking at the most popular route, (Ontario - Philadelphia), you can expect to pay $128 for that flight.

COVID Restrictions

View COVID Travel Restrictions for Philadelphia, PA

Do I need a COVID test to fly to Philadelphia from Ontario?

Information is based on travel restrictions for travel to Philadelphia within the United States

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter Philadelphia.

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Philadelphia.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Philadelphia.

Do I need a test to fly back to Ontario from Philadelphia?

Returning to Ontario from Philadelphia

COVID-19 testing requirements
Visitors from Philadelphia must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.

Quarantine requirements
Visitors from Philadelphia are not required to quarantine after entering Ontario.

Hide COVID Travel Restrictions for Philadelphia, PA

Alternative routes for Ontario to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Philadelphia

Things to know before you go - useful duration and weather info for your trip from Ontario to Philadelphia.
Average temperature for October in Philadelphia
69.8 °F
Avg rainfall for October in Philadelphia
3.4 ″

Airports servicing Ontario

Airports servicing Philadelphia

Top 6 airlines flying from Ontario to Philadelphia

The chart below displays the airlines Cheapflights users traveling from Ontario to Philadelphia choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$113 $281 No cancel fee 62%
United Airlines
$130 $362 No cancel fee 69%
Alaska Airlines
$138 $298 No cancel fee 75%
Delta
$162 $385 No cancel fee N/A
American Airlines
$167 $469 No cancel fee 71%
Spirit Airlines
$184 $294 No cancel fee 65%
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