Find Cheap Flights from Philadelphia to Ontario (PHL - ONT)

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Wed 12/13
Wed 12/20
Any month
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Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
December
Most popular time to fly
2%
expected price increase
Average Price:
$472
(avg. price over the last 2 weeks)
Good Deal:
$363
or less (round trip)

When to Book Flights from Philadelphia to Ontario

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $362 or less.
The cheapest flight from Philadelphia to Ontario was found 90 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 4% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Philadelphia to Ontario Flights

How long does a flight from Philadelphia to Ontario take?
An average nonstop flight takes 8h 37m, covering a distance of 2352 miles.
Which airlines provide the cheapest flights from Philadelphia to Ontario?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($238), Multiple Airlines ($286) and United ($354).
Do I need a passport to fly between Philadelphia and Ontario?
No.
What’s the cheapest day of the week to fly Philadelphia to Ontario?
For Philadelphia to Ontario, Sunday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Ontario back to Philadelphia, the best deals are generally found on Sunday, with Sunday being the most expensive.

Book cheap flights from Philadelphia to Ontario (round-trip)

Airports
Origin
Philadelphia
$238
only
$238
Destination
Ontario
$238
only
$238
Sun, Jan 7
PHL
ONT
15h 26m
Thu, Jan 11
ONT
PHL
23h 58m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCO
ATL
Excellent 10.0

Flight was on time and the crew was courteous and attentive.

The layover was a bit longer than I would have liked.

MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

LAS
SJC
Mediocre 3.3

Small, tight seats

PBI
TTN
Okay 4.0

The plane took off over an hr late due to lack of heat and the pilot had to reboot the system, once the plane finally took off the flught attendsnts then explained they would start the beverage service but were iut of most options and we could get ready to pay for what was left, maybe if they offered complimentary beverages at that point would've been a nice touch.

DEN
ABQ
Excellent 8.3

Flight was delayed so our seats were moved up

Delayed connecting flight

Tue, Jan 16
PHL
ONT
16h 23m
Thu, Jan 18
ONT
PHL
23h 58m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jan 31
PHL
ONT
8h 37m
Sat, Feb 3
ONT
PHL
6h 43m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52264 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
PEK
Good 6.0

a coach class seat is a chair of torture!!!!

SFO
HNL
Okay 4.3

on time

extremely cramped, overcrowded

EWR
IAH
Excellent 10.0

I find use my ticket yet ,my country it’s on chaos, @ this moment,i planning to use on the future,I know Kayak have great service ! Thank you I’ll let you know when I fly but I giving you 10 I always recommend people to book with you

IAD
BRU
Excellent 9.3

Loved the hindu vegetarian food. Incredibly tasty and I didn't expect it. No delays. All went smoothly.

Movie selection was weak.

IAH
IND
Excellent 8.6

Terrific Gate Team in Houston, who were extremely helpful with my current disability (my foot is in a walking boot). Gate agent immediately approached me once I got to the gate (via wheelchair) to see if I needed anything else. Then she took it upon herself to move my seat so that I had an empty row on the flight to prop my leg up on the flight, which was excellent customer service. She anticipated my needs & exceeded them. She signaled for me to board early, so I had enough time & space to get down the ramp. Gate agents like her are hard to find these days. I wish there were more agents like her. Flight to Indy- Plane were more spacious between the seats. My knees had 6”-8” between them & the seat in front of them. It was a new plane, so if this is the direction that United is going with their aircrafts, they will have lots of happy flyers.

It was recommended to download the United app for free inflight Enterainment once I purchased the inflight WiFi. After purchased, none of the movies or tv shows would play. It seemed like slow WiFi was making it impossible to utilize the Entertainment promoted by United.

Tue, Jan 9
PHL
ONT
15h 26m
Thu, Jan 18
ONT
PHL
23h 58m
Trip: 10 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
MCO
Excellent 10.0

Bought round trip tickets for a cheap price, was honestly expecting the worst but the seats were very comfortable & spacious. Crew was nice & helpful.

PVD
MCO
Mediocre 2.3

Not much.

Where do I start. Ticket counter at check in is an abomination even if you did it online as they suggest. The airline groups together those needing check in and those dropping off bags which makes no sense at all. Results in a long process. Nickel and dime you until the savings from a traditional airline is non-existent. Seats are uncomfortable, crew is unpleasant. No wifi or entertainment. And baggage is always delayed. Pay the money for a regular airline.

MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

PBI
TTN
Okay 4.0

The plane took off over an hr late due to lack of heat and the pilot had to reboot the system, once the plane finally took off the flught attendsnts then explained they would start the beverage service but were iut of most options and we could get ready to pay for what was left, maybe if they offered complimentary beverages at that point would've been a nice touch.

MCO
ATL
Excellent 10.0

Flight was on time and the crew was courteous and attentive.

The layover was a bit longer than I would have liked.

Wed, May 9
PHL
ONT
17h 42m
Tue, May 22
ONT
PHL
25h 48m
Trip: 14 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
MCO
Excellent 10.0

Bought round trip tickets for a cheap price, was honestly expecting the worst but the seats were very comfortable & spacious. Crew was nice & helpful.

COS
PHX
Mediocre 2.0

6 hr delayed

DEN
ABQ
Excellent 8.3

Flight was delayed so our seats were moved up

Delayed connecting flight

ORD
RSW
Excellent 10.0

We had 3 kids with us and the flight was on time and the staff was very nice

MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

Sun, Feb 4
PHL
ONT
15h 26m
Fri, Feb 9
ONT
PHL
8h 57m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHX
COS
Good 6.0

5 hr delayed

LAS
SJC
Mediocre 3.3

Small, tight seats

COS
PHX
Mediocre 2.0

6 hr delayed

IAD
MCO
Excellent 10.0

Bought round trip tickets for a cheap price, was honestly expecting the worst but the seats were very comfortable & spacious. Crew was nice & helpful.

ATL
DEN
Excellent 10.0

My flight was great comfortable and quick the crew weee informal and courteous

No dislikes

Thu, Feb 1
PHL
ONT
8h 57m
Sat, Feb 3
ONT
PHL
6h 43m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52264 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
PEK
Good 6.0

a coach class seat is a chair of torture!!!!

SFO
HNL
Okay 4.3

on time

extremely cramped, overcrowded

IAD
BRU
Excellent 9.3

Loved the hindu vegetarian food. Incredibly tasty and I didn't expect it. No delays. All went smoothly.

Movie selection was weak.

EWR
CLT
Good 7.3

very comfortable seats, and plane landed early

no free entertainment for personal devices. screen was broken and controller did not work.

EWR
TPA
Excellent 8.0

Crew was very nice, plane was clean, seats were nice.

Wish there were TVs on the back of chairs.

Tue, Feb 20
PHL
ONT
15h 26m
Sat, Feb 24
ONT
PHL
10h 20m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHX
COS
Good 6.0

5 hr delayed

LAS
SJC
Mediocre 3.3

Small, tight seats

ORD
RSW
Excellent 10.0

We had 3 kids with us and the flight was on time and the staff was very nice

COS
PHX
Mediocre 2.0

6 hr delayed

ATL
DEN
Excellent 10.0

My flight was great comfortable and quick the crew weee informal and courteous

No dislikes

Tue, Mar 6
PHL
ONT
15h 08m
Wed, Mar 14
ONT
PHL
10h 38m
Trip: 8 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

ORD
RSW
Excellent 10.0

We had 3 kids with us and the flight was on time and the staff was very nice

PHX
COS
Good 6.0

5 hr delayed

LAS
SJC
Mediocre 3.3

Small, tight seats

PVD
MCO
Mediocre 2.3

Not much.

Where do I start. Ticket counter at check in is an abomination even if you did it online as they suggest. The airline groups together those needing check in and those dropping off bags which makes no sense at all. Results in a long process. Nickel and dime you until the savings from a traditional airline is non-existent. Seats are uncomfortable, crew is unpleasant. No wifi or entertainment. And baggage is always delayed. Pay the money for a regular airline.

Tue, Dec 19
PHL
ONT
9h 43m
Fri, Dec 29
ONT
PHL
10h 09m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jun 13
PHL
ONT
17h 42m
Mon, Jun 18
ONT
PHL
7h 29m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHX
COS
Good 6.0

5 hr delayed

LAS
SJC
Mediocre 3.3

Small, tight seats

IAD
MCO
Excellent 10.0

Bought round trip tickets for a cheap price, was honestly expecting the worst but the seats were very comfortable & spacious. Crew was nice & helpful.

ORD
RSW
Excellent 10.0

We had 3 kids with us and the flight was on time and the staff was very nice

COS
PHX
Mediocre 2.0

6 hr delayed

Mon, Apr 9
PHL
ONT
17h 48m
Tue, Apr 17
ONT
PHL
17h 06m
Trip: 9 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCO
ATL
Excellent 10.0

Flight was on time and the crew was courteous and attentive.

The layover was a bit longer than I would have liked.

ATL
DEN
Excellent 10.0

My flight was great comfortable and quick the crew weee informal and courteous

No dislikes

MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

PVD
MCO
Mediocre 2.3

Not much.

Where do I start. Ticket counter at check in is an abomination even if you did it online as they suggest. The airline groups together those needing check in and those dropping off bags which makes no sense at all. Results in a long process. Nickel and dime you until the savings from a traditional airline is non-existent. Seats are uncomfortable, crew is unpleasant. No wifi or entertainment. And baggage is always delayed. Pay the money for a regular airline.

IAD
MCO
Excellent 10.0

Bought round trip tickets for a cheap price, was honestly expecting the worst but the seats were very comfortable & spacious. Crew was nice & helpful.

Wed, Apr 18
PHL
ONT
17h 48m
Sun, Apr 22
ONT
PHL
17h 06m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAD
LAS
Excellent 9.0

Some questions aren't relevant to my flight. The pilot negotiated turbulence, and we arrived early.

COS
PHX
Mediocre 2.0

6 hr delayed

PBI
TTN
Okay 4.0

The plane took off over an hr late due to lack of heat and the pilot had to reboot the system, once the plane finally took off the flught attendsnts then explained they would start the beverage service but were iut of most options and we could get ready to pay for what was left, maybe if they offered complimentary beverages at that point would've been a nice touch.

PHX
COS
Good 6.0

5 hr delayed

PVD
MCO
Mediocre 2.3

Not much.

Where do I start. Ticket counter at check in is an abomination even if you did it online as they suggest. The airline groups together those needing check in and those dropping off bags which makes no sense at all. Results in a long process. Nickel and dime you until the savings from a traditional airline is non-existent. Seats are uncomfortable, crew is unpleasant. No wifi or entertainment. And baggage is always delayed. Pay the money for a regular airline.

Sat, May 5
PHL
ONT
17h 42m
Thu, May 10
ONT
PHL
16h 50m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
ABQ
Excellent 8.3

Flight was delayed so our seats were moved up

Delayed connecting flight

MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

LAS
SJC
Mediocre 3.3

Small, tight seats

ORD
RSW
Excellent 10.0

We had 3 kids with us and the flight was on time and the staff was very nice

ATL
DEN
Excellent 10.0

My flight was great comfortable and quick the crew weee informal and courteous

No dislikes

Wed, May 9
PHL
ONT
17h 42m
Sun, Jun 3
ONT
PHL
16h 50m
Trip: 26 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
COS
PHX
Mediocre 2.0

6 hr delayed

ATL
DEN
Excellent 10.0

My flight was great comfortable and quick the crew weee informal and courteous

No dislikes

IAD
MCO
Excellent 10.0

Bought round trip tickets for a cheap price, was honestly expecting the worst but the seats were very comfortable & spacious. Crew was nice & helpful.

MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

MCO
ATL
Excellent 10.0

Flight was on time and the crew was courteous and attentive.

The layover was a bit longer than I would have liked.

Wed, May 23
PHL
ONT
17h 42m
Wed, May 30
ONT
PHL
7h 29m
Trip: 8 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PVD
MCO
Mediocre 2.3

Not much.

Where do I start. Ticket counter at check in is an abomination even if you did it online as they suggest. The airline groups together those needing check in and those dropping off bags which makes no sense at all. Results in a long process. Nickel and dime you until the savings from a traditional airline is non-existent. Seats are uncomfortable, crew is unpleasant. No wifi or entertainment. And baggage is always delayed. Pay the money for a regular airline.

PBI
TTN
Okay 4.0

The plane took off over an hr late due to lack of heat and the pilot had to reboot the system, once the plane finally took off the flught attendsnts then explained they would start the beverage service but were iut of most options and we could get ready to pay for what was left, maybe if they offered complimentary beverages at that point would've been a nice touch.

IAD
LAS
Excellent 9.0

Some questions aren't relevant to my flight. The pilot negotiated turbulence, and we arrived early.

IAD
MCO
Excellent 10.0

Bought round trip tickets for a cheap price, was honestly expecting the worst but the seats were very comfortable & spacious. Crew was nice & helpful.

MCO
ATL
Excellent 10.0

Flight was on time and the crew was courteous and attentive.

The layover was a bit longer than I would have liked.

Tue, Mar 13
PHL
ONT
15h 08m
Tue, Mar 20
ONT
PHL
25h 43m
Trip: 8 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PBI
TTN
Okay 4.0

The plane took off over an hr late due to lack of heat and the pilot had to reboot the system, once the plane finally took off the flught attendsnts then explained they would start the beverage service but were iut of most options and we could get ready to pay for what was left, maybe if they offered complimentary beverages at that point would've been a nice touch.

MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

PHX
COS
Good 6.0

5 hr delayed

ATL
DEN
Excellent 10.0

My flight was great comfortable and quick the crew weee informal and courteous

No dislikes

DEN
ABQ
Excellent 8.3

Flight was delayed so our seats were moved up

Delayed connecting flight

Tue, Dec 19
PHL
ONT
15h 45m
Tue, Jan 16
ONT
PHL
23h 58m
Trip: 29 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHX
COS
Good 6.0

5 hr delayed

PBI
TTN
Okay 4.0

The plane took off over an hr late due to lack of heat and the pilot had to reboot the system, once the plane finally took off the flught attendsnts then explained they would start the beverage service but were iut of most options and we could get ready to pay for what was left, maybe if they offered complimentary beverages at that point would've been a nice touch.

MCO
ATL
Excellent 10.0

Flight was on time and the crew was courteous and attentive.

The layover was a bit longer than I would have liked.

IAD
LAS
Excellent 9.0

Some questions aren't relevant to my flight. The pilot negotiated turbulence, and we arrived early.

ORD
RSW
Excellent 10.0

We had 3 kids with us and the flight was on time and the staff was very nice

Mon, Jun 11
PHL
ONT
17h 42m
Sun, Jun 17
ONT
PHL
25h 48m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
RSW
Excellent 10.0

We had 3 kids with us and the flight was on time and the staff was very nice

IAD
MCO
Excellent 10.0

Bought round trip tickets for a cheap price, was honestly expecting the worst but the seats were very comfortable & spacious. Crew was nice & helpful.

IAD
LAS
Excellent 9.0

Some questions aren't relevant to my flight. The pilot negotiated turbulence, and we arrived early.

LAS
SJC
Mediocre 3.3

Small, tight seats

DEN
ABQ
Excellent 8.3

Flight was delayed so our seats were moved up

Delayed connecting flight

Thu, Dec 21
PHL
ONT
15h 45m
Fri, Dec 29
ONT
PHL
10h 09m
Trip: 9 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33242 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
COS
PHX
Mediocre 2.0

6 hr delayed

MCO
IAD
Mediocre 2.3

Nothing

There is no entertainment, no charger, the crew was rudo, no food and even no water, nothing good in this flight and was expensive

LAS
SJC
Mediocre 3.3

Small, tight seats

MCO
ATL
Excellent 10.0

Flight was on time and the crew was courteous and attentive.

The layover was a bit longer than I would have liked.

ATL
DEN
Excellent 10.0

My flight was great comfortable and quick the crew weee informal and courteous

No dislikes

Show more results
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We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.