Which layover airport has the shortest connection time from Ontario to Philadelphia?

Chicago (ORD) has the shortest average layover time for this route: 1h 25m.

What is the cheapest airline that flies from Ontario to Philadelphia?

Frontier, Delta, and United Airlines are the most popular carriers operating from Ontario to Philadelphia

Which airport is the most popular layover for flights between Ontario and Philadelphia?

Denver (DEN) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Ontario to Philadelphia?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $257.

Which layover airport has the shortest travel time from Ontario to Philadelphia?

Flights connecting via Nashville (BNA) have the shortest average one-way travel time: 7h 20m.

What airlines fly to Philadelphia?

JetBlue, American Airlines and United Airlines are the top three most popular airlines that fly to Philadelphia from Ontario according to our data. JetBlue is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 9 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

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?

As of June 2026, there are 5 operators available to choose from 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.

$118 Cheap Flights from Ontario to Philadelphia in 2026

Q: What is the typical price of a round-trip flight between Ontario and Philadelphia?

Prices are currently low for flights on this route. Typical prices usually range from $306 to $484. The lowest price recently found on this route was $295.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Philadelphia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:47 pm - 10:30 am

ONT

PHL

12h 43m

1 stop

10:46 am - 7:48 pm

PHL

ONT

12h 02m

1 stop

$295Frontier

Wed, Aug 19 - Sat, Aug 22

8:17 am - 7:29 pm

ONT

PHL

8h 12m

1 stop

12:44 pm - 11:50 pm

PHL

ONT

14h 06m

1 stop

$297Frontier

Sat, Jul 11 - Tue, Jul 21

1:38 pm - 6:00 am

ONT

PHL

13h 22m

1 stop

12:44 pm - 11:50 pm

PHL

ONT

14h 06m

1 stop

$299Frontier

Wed, Jul 8 - Wed, Jul 22

2:55 pm - 5:36 am

ONT

PHL

11h 41m

1 stop

8:44 pm - 11:55 pm

PHL

ONT

30h 11m

1 stop

$300Frontier

Wed, Sep 16 - Tue, Oct 6

8:17 am - 1:01 am

ONT

PHL

13h 44m

1 stop

11:06 am - 3:54 pm

PHL

ONT

7h 48m

1 stop

$301Frontier

Thu, Jul 9 - Mon, Jul 13

11:52 am - 6:00 am

ONT

PHL

15h 08m

1 stop

11:06 am - 8:03 am

PHL

ONT

23h 57m

1 stop

$302Frontier

Mon, Jul 6 - Wed, Jul 8

11:52 am - 6:00 am

ONT

PHL

15h 08m

1 stop

12:44 pm - 10:04 am

PHL

ONT

24h 20m

1 stop

$303Frontier

Sat, Jul 18 - Sat, Jul 25

3:40 pm - 6:00 am

ONT

PHL

11h 20m

1 stop

12:44 pm - 11:50 pm

PHL

ONT

14h 06m

1 stop

$304Frontier

Sat, Jul 18 - Thu, Jul 23

3:40 pm - 6:00 am

ONT

PHL

11h 20m

1 stop

11:06 am - 3:54 pm

PHL

ONT

7h 48m

1 stop

$305Frontier

Fri, Jul 17 - Mon, Jul 20

8:17 am - 7:29 pm

ONT

PHL

8h 12m

1 stop

12:54 pm - 11:50 pm

PHL

ONT

13h 56m

1 stop

$306Frontier

Sat, Jul 11 - Fri, Jul 24

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Frontier flights from Ontario to Philadelphia

Our best Frontier deals on Ontario to Philadelphia flight tickets

Frontier

Aug 19

ONT6:47 pmOntario

12h 43m

1 stop

PHL10:30 amPhiladelphia

Aug 22

PHL10:46 amPhiladelphia

12h 02m

1 stop

ONT7:48 pmOntario

$295

Frontier

Jul 11

ONT8:17 amOntario

8h 12m

1 stop

PHL7:29 pmPhiladelphia

Jul 21

PHL12:44 pmPhiladelphia

14h 06m

1 stop

ONT11:50 pmOntario

$297

Frontier

Jul 8

ONT1:38 pmOntario

13h 22m

1 stop

PHL6:00 amPhiladelphia

Jul 22

PHL12:44 pmPhiladelphia

14h 06m

1 stop

ONT11:50 pmOntario

$299

Delta flights from Ontario to Philadelphia

Our best Delta deals on Ontario to Philadelphia flight tickets

Delta

Jul 4

ONT6:00 amOntario

8h 41m

1 stop

PHL5:41 pmPhiladelphia

Jul 25

PHL6:00 amPhiladelphia

7h 38m

1 stop

ONT10:38 amOntario

$359

Delta

Jul 4

ONT6:00 amOntario

8h 41m

1 stop

PHL5:41 pmPhiladelphia

Jul 28

PHL7:30 amPhiladelphia

7h 40m

1 stop

ONT12:10 pmOntario

$389

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Wed 8/19

6:47 pm-10:30 am

1 stop12h 43m

Philadelphia

Sat 8/22

10:46 am-7:48 pm

1 stop12h 02m

$295

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Sat 7/11

8:17 am-7:29 pm

1 stop8h 12m

Philadelphia

Tue 7/21

12:44 pm-11:50 pm

1 stop14h 06m

$297

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Wed 7/8

1:38 pm-6:00 am

1 stop13h 22m

Philadelphia

Wed 7/22

12:44 pm-11:50 pm

1 stop14h 06m

$299

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Wed 9/16

2:55 pm-5:36 am

1 stop11h 41m

Philadelphia

Tue 10/6

8:44 pm-11:55 pm

1 stop30h 11m

$300

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 7/9

8:17 am-1:01 am

1 stop13h 44m

Philadelphia

Mon 7/13

11:06 am-3:54 pm

1 stop7h 48m

$301

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Mon 7/6

11:52 am-6:00 am

1 stop15h 08m

Philadelphia

Wed 7/8

11:06 am-8:03 am

1 stop23h 57m

$302

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Sat 7/18

11:52 am-6:00 am

1 stop15h 08m

Philadelphia

Sat 7/25

12:44 pm-10:04 am

1 stop24h 20m

$303

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Sat 7/18

3:40 pm-6:00 am

1 stop11h 20m

Philadelphia

Thu 7/23

12:44 pm-11:50 pm

1 stop14h 06m

$304

Quickest round-trip

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Fri 7/17

3:40 pm-6:00 am

1 stop11h 20m

Philadelphia

Mon 7/20

11:06 am-3:54 pm

1 stop7h 48m

$305

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Sat 7/11

8:17 am-7:29 pm

1 stop8h 12m

Philadelphia

Fri 7/24

12:54 pm-11:50 pm

1 stop13h 56m

$306

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

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 September. Flight prices, which tend to average around $305, are often lower during this time because this is during the off-season. The month of July is another great option to travel to Philadelphia, with average flight prices from Ontario averaging around $363.

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

The cheapest day to depart from Ontario to Philadelphia is on a Saturday. Travelers who choose to depart for Philadelphia on a Saturday will often find tickets for as low as $453. 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 $568.

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 at noon. momondo users have found flights departing from Ontario to Philadelphia at noon for as low as $420. 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 morning when prices are around $518.

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

You are more likely to see cheaper flights to Philadelphia from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $418 when searching 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 $267 on momondo.

How have Ontario to Philadelphia flight prices changed over time?

As of June 2026, prices for Ontario to Philadelphia flights are approximately 45% 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

Fastest flight time	7h 56m
Direct flights	None

The fastest flight from Ontario to Philadelphia takes 7h 56m

There are no direct flights from Ontario to Philadelphia. There are no popular flight routes from Ontario to Philadelphia.

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Frequently asked questions about flying from Ontario to Philadelphia

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 7h 56m.
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?
As of June 2026, there are 5 operators available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from Ontario to Philadelphia is American Airlines, representing 49% of all bookings. The subsequent popular airlines are Frontier at 24%, Delta at 13%, and Southwest at 10%.

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
Frontier	PriceFrom $155	Free Cancellation	Rating 5.6 2,876 reviews	Search Frontier flights
Delta	PriceFrom $282	Free Cancellation	Rating 7.8 8,423 reviews	Search Delta flights
American Airlines	PriceFrom $300	Free Cancellation	Rating 7.1 11,722 reviews	Search American Airlines flights
United Airlines	PriceFrom $312	Free Cancellation	Rating 7.4 9,868 reviews	Search United Airlines flights
Southwest	PriceFrom $366	Free Cancellation	Rating 7.9 4,242 reviews	Search Southwest flights

Wildwood

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Dewey Beach

Reading

Dover

North Wildwood

Essington

Avalon

Lewes

New Castle

Stone Harbor

Vineland

Chester

Pottstown

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.