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Cheap flights from Ontario to Philadelphia from $65

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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0 bags

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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 from Ontario to Philadelphia

The cheapest plane tickets from Ontario to Philadelphia found on KAYAK recently.
8:29 pm - 7:38 amONT-PHL
8h 09m1 stop
8:00 am - 7:09 pmPHL-ONT
14h 09m1 stop
$130Frontier
Find Deal
Sat, Feb 15 - Sat, Feb 22
8:29 pm - 7:38 amONT-PHL
8h 09m1 stop
7:34 pm - 9:31 amPHL-ONT
16h 57m1 stop
$131Frontier
Find Deal
Sat, Feb 15 - Sat, Feb 22
1:00 pm - 10:52 pmONT-PHL
6h 52m1 stop
5:40 am - 11:50 amPHL-ONT
9h 10m1 stop
$345Delta
Find Deal
Sat, Feb 8 - Wed, Feb 12
1:00 pm - 10:52 pmONT-PHL
6h 52m1 stop
3:55 pm - 10:52 pmPHL-ONT
9h 57m1 stop
$347Delta
Find Deal
Sat, Feb 8 - Wed, Feb 12
5:10 am - 3:44 pmONT-PHL
7h 34m1 stop
10:10 am - 8:51 pmPHL-ONT
13h 41m2 stops
$350United Airlines
Find Deal
Sat, Feb 8 - Wed, Feb 12
5:10 am - 5:35 pmONT-PHL
9h 25m2 stops
12:15 pm - 8:51 pmPHL-ONT
11h 36m2 stops
$355United Airlines
Find Deal
Sat, Feb 8 - Wed, Feb 12
9:32 am - 9:02 pmONT-PHL
8h 30m2 stops
1:50 pm - 8:59 pmPHL-ONT
10h 09m1 stop
$371American Airlines
Find Deal
Tue, Apr 1 - Sat, Apr 5
10:00 am - 10:58 pmONT-PHL
9h 58m2 stops
3:38 pm - 10:45 pmPHL-ONT
10h 07m2 stops
$376American Airlines
Find Deal
Sat, Feb 8 - Wed, Feb 12
5:30 am - 5:45 pmONT-PHL
9h 15m2 stops
2:20 pm - 8:05 pmPHL-ONT
8h 45m2 stops
$411Southwest
Find Deal
Wed, May 14 - Sat, Aug 23
9:20 am - 11:15 pmONT-PHL
10h 55m2 stops
6:25 am - 1:25 pmPHL-ONT
10h 00m2 stops
$421Southwest
Find Deal
Wed, Feb 19 - Wed, Feb 26
12:59 am - 11:39 amONT-PHL
7h 40m1 stop
$65Frontier
Find Deal
Wed, Feb 12
10:44 am - 6:52 amONT-PHL
17h 08m1 stop
$69Frontier
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Wed, May 7
1:00 pm - 12:49 amONT-PHL
8h 49m1 stop
$174Delta
Find Deal
Sat, Feb 8
10:56 am - 11:34 pmONT-PHL
9h 38m2 stops
$179American Airlines
Find Deal
Sat, Feb 8
7:00 am - 6:49 pmONT-PHL
8h 49m1 stop
$193Delta
Find Deal
Sat, Mar 15
5:05 am - 3:46 pmONT-PHL
7h 41m1 stop
$217United Airlines
Find Deal
Tue, Feb 25
5:05 am - 3:46 pmONT-PHL
7h 41m1 stop
$219United Airlines
Find Deal
Tue, Feb 25
8:40 am - 9:50 pmONT-PHL
10h 10m2 stops
$224Southwest
Find Deal
Wed, Mar 12
8:02 pm - 7:16 amONT-PHL
8h 14m1 stop
$229American Airlines
Find Deal
Sat, Jun 28
1:35 pm - 12:50 amONT-PHL
8h 15m2 stops
$254Southwest
Find Deal
Sun, Feb 16
6:45 am - 8:48 pmONT-PHL
11h 03m1 stop
9:53 pm - 9:40 amPHL-ONT
14h 47m1 stop
$564Frontier
Find Deal
Thu, Jan 23 - Sun, Jan 26
6:45 am - 8:48 pmONT-PHL
11h 03m1 stop
9:53 pm - 9:40 amPHL-ONT
14h 47m1 stop
$581Frontier
Find Deal
Thu, Jan 23 - Sun, Jan 26
6:45 am - 8:48 pmONT-PHL
11h 03m1 stop
9:53 pm - 9:40 amPHL-ONT
14h 47m1 stop
$756Frontier
Find Deal
Thu, Jan 23 - Sun, Jan 26
10:47 am - 5:20 pmONT-PHL
27h 33m1 stop
6:24 pm - 9:51 amPHL-ONT
18h 27m1 stop
$865United Airlines
Find Deal
Thu, Jan 23 - Mon, Jan 27
6:38 pm - 11:24 pmONT-PHL
25h 46m2 stops
6:24 pm - 6:04 pmPHL-ONT
26h 40m1 stop
$870United Airlines
Find Deal
Thu, Jan 23 - Mon, Jan 27
11:35 am - 9:00 pmONT-PHL
6h 25m1 stop
9:45 am - 3:40 pmPHL-ONT
8h 55m1 stop
$927Southwest
Find Deal
Sat, Jan 25 - Mon, Jan 27
8:10 am - 8:45 pmONT-PHL
9h 35m2 stops
2:45 pm - 10:20 pmPHL-ONT
10h 35m1 stop
$932Southwest
Find Deal
Sat, Jan 25 - Mon, Jan 27
7:05 am - 7:45 pmONT-PHL
9h 40m1 stop
6:40 pm - 11:53 pmPHL-ONT
8h 13m1 stop
$973Delta
Find Deal
Sat, Jan 25 - Mon, Jan 27
6:00 am - 10:59 pmONT-PHL
13h 59m2 stops
6:00 am - 3:25 pmPHL-ONT
12h 25m2 stops
$983Delta
Find Deal
Fri, Jan 24 - Mon, Jan 27
11:59 pm - 11:21 amONT-PHL
8h 22m1 stop
10:45 am - 6:37 pmPHL-ONT
10h 52m1 stop
$1,863American Airlines
Find Deal
Thu, Jan 23 - Wed, Jan 29

United Airlines flights from Ontario to Philadelphia

Our best United Airlines deals on Ontario to Philadelphia flight tickets
United Airlines
Feb 8
ONT5:10 amOntario
7h 34m
1 stop
PHL3:44 pmPhiladelphia
Feb 12
PHL10:10 amPhiladelphia
13h 41m
2 stops
ONT8:51 pmOntario
United Airlines
Feb 8
ONT5:10 amOntario
9h 25m
2 stops
PHL5:35 pmPhiladelphia
Feb 12
PHL12:15 pmPhiladelphia
11h 36m
2 stops
ONT8:51 pmOntario
United Airlines
Feb 19
ONT5:05 amOntario
9h 20m
2 stops
PHL5:25 pmPhiladelphia
Mar 4
PHL6:30 amPhiladelphia
9h 12m
2 stops
ONT12:42 pmOntario

Frontier flights from Ontario to Philadelphia

Our best Frontier deals on Ontario to Philadelphia flight tickets
Frontier
Feb 15
ONT8:29 pmOntario
8h 09m
1 stop
PHL7:38 amPhiladelphia
Feb 22
PHL8:00 amPhiladelphia
14h 09m
1 stop
ONT7:09 pmOntario
Frontier
Feb 15
ONT8:29 pmOntario
8h 09m
1 stop
PHL7:38 amPhiladelphia
Feb 22
PHL7:34 pmPhiladelphia
16h 57m
1 stop
ONT9:31 amOntario
Frontier
Mar 5
ONT2:43 pmOntario
12h 21m
1 stop
PHL6:04 amPhiladelphia
Mar 11
PHL6:49 amPhiladelphia
20h 20m
1 stop
ONT12:09 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 typical price of a round-trip flight between Ontario and Philadelphia?

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Ontario is in January. Flight prices, which tend to average around $315, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Philadelphia, with average flight prices from Ontario averaging around $323.

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 $446. 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 $607.

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?

You are more likely to see cheaper flights to Philadelphia from Ontario when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $377 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Ontario for as low as $357 on momondo.

How have Ontario to Philadelphia flight prices changed over time?

As of January 2025, prices for Ontario to Philadelphia flights are approximately 91% more expensive 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

$65

Fastest flight time

6h 32m

Direct flights

None

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Ontario in the past 72 hours is $65. The best round-trip flight deal from Ontario to Philadelphia found on momondo in the last 72 hours is $130.
The fastest flight from Ontario to Philadelphia takes 6h 32m
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 32m.

  • 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
8,115 reviews
Search Spirit Airlines flights
FrontierPriceFrom $126Free CancellationRating
6.0
3,443 reviews
Search Frontier flights
DeltaPriceFrom $279Free CancellationRating
8.0
8,521 reviews
Search Delta flights
American AirlinesPriceFrom $280Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $317Free CancellationRating
7.4
8,985 reviews
Search United Airlines flights
SouthwestPriceFrom $366Free CancellationRating
8.1
4,662 reviews
Search Southwest flights

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Rehoboth Beach
Cape May
Ocean City
Wildwood Crest
Reading
King of Prussia
Newark
Dover
Dewey Beach
Cherry Hill
North Wildwood
Lewes
Exton
New Castle
Vineland
Pottstown
West Chester
Essington
Havre de Grace

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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