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Cheap flights from Ontario to Philadelphia from $64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Philadelphia departing on 2/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Philadelphia

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to Philadelphia that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to Philadelphia.

Cheap last minute flights

Planning a quick getaway from Ontario to Philadelphia? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Philadelphia, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ontario to Philadelphia

Find recent round-trip train or bus tickets from Ontario to Philadelphia.

All round-trip flight deals to Philadelphia

The cheapest plane tickets to Philadelphia found on KAYAK recently.
12:59 am - 11:39 amONT-PHL
7h 40m1 stop
8:00 am - 7:09 pmPHL-ONT
14h 09m1 stop
$128Frontier
Find Deal
Wed, Feb 12 - Sat, Feb 22
12:59 am - 6:39 pmONT-PHL
14h 40m1 stop
8:00 am - 7:09 pmPHL-ONT
14h 09m1 stop
$138Frontier
Find Deal
Fri, Feb 14 - Sat, Feb 22
12:48 pm - 11:59 pmONT-PHL
8h 11m1 stop
1:43 pm - 6:24 pmPHL-ONT
7h 41m1 stop
$371American Airlines
Find Deal
Mon, Jan 13 - Tue, Jan 14
12:48 pm - 11:59 pmONT-PHL
8h 11m1 stop
11:50 am - 6:24 pmPHL-ONT
9h 34m2 stops
$376American Airlines
Find Deal
Mon, Jan 13 - Tue, Jan 14
6:00 am - 5:28 pmONT-PHL
8h 28m1 stop
3:55 pm - 10:52 pmPHL-ONT
9h 57m1 stop
$381Delta
Find Deal
Fri, Jan 17 - Wed, Jan 22
1:00 pm - 12:49 amONT-PHL
8h 49m1 stop
5:40 am - 11:50 amPHL-ONT
9h 10m1 stop
$386Delta
Find Deal
Fri, Jan 10 - Sat, Jan 18
9:20 am - 9:05 pmONT-PHL
8h 45m2 stops
9:45 am - 5:00 pmPHL-ONT
10h 15m2 stops
$411Southwest
Find Deal
Mon, Jan 13 - Tue, Jan 14
5:10 am - 5:35 pmONT-PHL
9h 25m2 stops
10:10 am - 8:29 pmPHL-ONT
13h 19m2 stops
$416United Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
5:10 am - 5:00 pmONT-PHL
8h 50m1 stop
12:15 pm - 7:25 pmPHL-ONT
10h 10m2 stops
$431Southwest
Find Deal
Thu, Apr 10 - Sun, Apr 13
5:10 am - 5:35 pmONT-PHL
9h 25m2 stops
10:10 am - 8:52 pmPHL-ONT
13h 42m2 stops
$445United Airlines
Find Deal
Fri, Feb 7 - Fri, Feb 14
12:59 am - 11:39 amONT-PHL
7h 40m1 stop
$64Frontier
Find Deal
Wed, Feb 12
6:45 am - 8:48 pmONT-PHL
11h 03m1 stop
$74Frontier
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Thu, Jan 23
5:32 pm - 6:00 amONT-PHL
9h 28m1 stop
$84Frontier
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Mon, Jan 6
12:48 pm - 11:59 pmONT-PHL
8h 11m1 stop
$173American Airlines
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Tue, Jan 21
6:10 am - 4:05 pmONT-PHL
6h 55m1 stop
$178American Airlines
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Sun, Jan 19
7:05 am - 11:20 pmONT-PHL
13h 15m2 stops
$183Delta
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Sat, Jan 25
6:00 am - 5:28 pmONT-PHL
8h 28m1 stop
$198Delta
Find Deal
Mon, Jan 13
5:10 am - 5:35 pmONT-PHL
9h 25m2 stops
$207United Airlines
Find Deal
Tue, Jan 21
5:10 am - 3:44 pmONT-PHL
7h 34m1 stop
$223United Airlines
Find Deal
Tue, Jan 7
12:55 pm - 12:45 amONT-PHL
8h 50m2 stops
$448Southwest
Find Deal
Sat, Dec 28
10:19 pm - 6:00 amONT-PHL
28h 41m1 stop
7:45 am - 8:35 pmPHL-ONT
15h 50m1 stop
$248Frontier
Find Deal
Mon, Dec 23 - Thu, Feb 27
10:19 pm - 6:00 amONT-PHL
28h 41m1 stop
12:44 pm - 10:25 amPHL-ONT
24h 41m1 stop
$268Frontier
Find Deal
Mon, Dec 23 - Thu, Feb 27
10:31 pm - 6:00 amONT-PHL
28h 29m1 stop
7:30 am - 6:10 pmPHL-ONT
13h 40m1 stop
$303Frontier
Find Deal
Sun, Dec 22 - Sat, Jan 4
8:32 pm - 5:41 pmONT-PHL
18h 09m2 stops
6:32 pm - 10:49 amPHL-ONT
19h 17m1 stop
$958Alaska Airlines
Find Deal
Mon, Dec 23 - Mon, Jan 6
4:58 pm - 9:27 amONT-PHL
13h 29m2 stops
5:38 am - 10:46 amPHL-ONT
8h 08m1 stop
$977Delta
Find Deal
Sat, Dec 21 - Sun, Dec 29
8:32 pm - 5:41 pmONT-PHL
18h 09m2 stops
6:25 pm - 11:24 pmPHL-ONT
31h 59m1 stop
$982Alaska Airlines
Find Deal
Mon, Dec 23 - Thu, Feb 27
6:10 am - 4:19 pmONT-PHL
7h 09m1 stop
5:30 pm - 10:02 pmPHL-ONT
7h 32m1 stop
$1,001American Airlines
Find Deal
Fri, Dec 20 - Fri, Dec 20
5:30 am - 7:54 pmONT-PHL
11h 24m2 stops
6:58 pm - 12:28 amPHL-ONT
8h 30m1 stop
$1,011Delta
Find Deal
Fri, Dec 20 - Sun, Dec 22
6:00 am - 5:20 pmONT-PHL
8h 20m1 stop
6:35 am - 5:26 pmPHL-ONT
13h 51m2 stops
$1,041United Airlines
Find Deal
Sat, Dec 21 - Fri, Jan 3
1:57 pm - 5:33 amONT-PHL
12h 36m2 stops
6:15 am - 11:00 pmPHL-ONT
19h 45m2 stops
$1,055United Airlines
Find Deal
Sat, Dec 21 - Sun, Dec 29

Frontier flights from Ontario to Philadelphia

Our best Frontier deals on Ontario to Philadelphia flight tickets
Frontier
Feb 12
ONT12:59 amOntario
7h 40m
1 stop
PHL11:39 amPhiladelphia
Feb 22
PHL8:00 amPhiladelphia
14h 09m
1 stop
ONT7:09 pmOntario
Frontier
Feb 14
ONT12:59 amOntario
14h 40m
1 stop
PHL6:39 pmPhiladelphia
Feb 22
PHL8:00 amPhiladelphia
14h 09m
1 stop
ONT7:09 pmOntario
Frontier
Feb 12
ONT12:59 amOntario
7h 40m
1 stop
PHL11:39 amPhiladelphia
Feb 24
PHL4:34 pmPhiladelphia
10h 25m
1 stop
ONT11:59 pmOntario

Delta flights from Ontario to Philadelphia

Our best Delta deals on Ontario to Philadelphia flight tickets
Delta
Dec 24
ONT12:55 pmOntario
8h 57m
1 stop
PHL12:52 amPhiladelphia
Jan 7
PHL6:55 amPhiladelphia
8h 31m
1 stop
ONT12:26 pmOntario
Delta
Jan 17
ONT6:00 amOntario
8h 28m
1 stop
PHL5:28 pmPhiladelphia
Jan 22
PHL3:55 pmPhiladelphia
9h 57m
1 stop
ONT10:52 pmOntario
Delta
Jan 10
ONT1:00 pmOntario
8h 49m
1 stop
PHL12:49 amPhiladelphia
Jan 18
PHL5:40 amPhiladelphia
9h 10m
1 stop
ONT11:50 amOntario

See travel insights to Philadelphia from

How to get the cheapest flight ticket from Ontario to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Ontario is in September. Flight prices, which tend to average around $272, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Philadelphia, with average flight prices from Ontario averaging around $293.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Ontario to Philadelphia is on a Tuesday. Travelers who choose to depart for Philadelphia on a Tuesday will often find tickets for as low as $362. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $522.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Ontario to Philadelphia in the evening for as low as $380. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the afternoon when prices are around $400.

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

Most flyers found that booking tickets 14 days in advance of their planned departure date is the best time to get cheap flights to Philadelphia. During this timeframe, flight prices are around $376. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Ontario for as low as $267 on momondo.

Can stopping save me money on Ontario to Philadelphia flights?

You could potentially save up to 33% on your flight if you consider stops on a Ontario to Philadelphia flight.

How have Ontario to Philadelphia flight prices changed over time?

As of December 2024, prices for Ontario to Philadelphia flights are approximately 24% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Philadelphia (ONT to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Philadelphia

Best Price Found

$64

Fastest flight time

6h 37m

Direct flights

None

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Ontario in the past 72 hours is $64. The best round-trip flight deal from Ontario to Philadelphia found on momondo in the last 72 hours is $128.
The fastest flight from Ontario to Philadelphia takes 6h 37m
There are no direct flights from Ontario to Philadelphia. Popular non-direct route for this connection is Ontario Airport - Philadelphia Airport.
There is 1 airport near Philadelphia: Philadelphia (PHL)

  • How far is Ontario to Philadelphia by plane?

    The distance between Ontario and Philadelphia is about 2355.5 mi. In terms of flight time, this usually takes a little over 6h 39m.

  • When did momondo last update prices for flights from Ontario Airport to Philadelphia Airport?

    Prices for flights from Ontario Airport to Philadelphia Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Philadelphia Airport?

  • How old do you have to be to fly from Ontario Airport to Philadelphia Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Philadelphia?


Best airlines flying from Ontario to Philadelphia

Compare and see reviews for airlines that fly from Ontario to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $125Free CancellationRating
6.3
8,119 reviews
Search Spirit Airlines flights
FrontierPriceFrom $125Free CancellationRating
6.1
3,479 reviews
Search Frontier flights
DeltaPriceFrom $279Free CancellationRating
8.0
8,604 reviews
Search Delta flights
American AirlinesPriceFrom $280Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $317Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights
SouthwestPriceFrom $366Free CancellationRating
8.1
4,848 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Philadelphia?

It is quick and easy to find Ontario to Philadelphia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Philadelphia that suits you.

Can I find flights from Ontario to Philadelphia with flexible booking policies on momondo?

All flight searches from Ontario to Philadelphia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Philadelphia?

momondo provides multiple filters to help you find the best flight to Philadelphia from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Philadelphia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Philadelphia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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