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$83+ Cheap flights from Philadelphia to Ontario (PHL - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ONT
jul. 30 — ago. 61
From?
To?
mar. 7/30
mar. 8/6
1 adult, Economy
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The best prices from Philadelphia to Ontario are usually found in April or August, booked 26 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Philadelphia to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 25, 2024.

Popular in

June

Cheapest in

April

Round-trip from

$161
(mytrip.com)

One-way from

$83
(mytrip.com)
High demand for flights, 17% potential price rise
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Best time to find cheap flights, 26% potential price drop
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From Philadelphia to Ontario
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One-way flight from Philadelphia to Ontario
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What is the cheapest day to fly round-trip from Philadelphia to Ontario?

Flights from Philadelphia to Ontario are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ontario.

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

Travelers have found it’s best to book a flight 18 days in advance to save up to 23% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 18 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Philadelphia to Ontario 1-2 weeks in advance for as low as $372, or $502 for flights within the next 24 hours.

What is the cheapest month to fly from Philadelphia to Ontario?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Ontario. Flights to Ontario from Philadelphia in September are about $373 on average during September, but can be found for as low as $157.

What is the cheapest time of day to fly from PHL to ONT?

It’s typically best to fly out from Philadelphia to Ontario in the evening. Doing so could potentially save you 33% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Philadelphia to Ontario flights in July & August 2024

Find cheap flight options from Philadelphia to Ontario specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on julio 25, 2024.
Listed are some of the best fares we've found on flights departing from Philadelphia to Ontario in 2024. For more flight deals, be sure to check back very soon.
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/318:30 pmPHL - ONT
1 stop13h 47mFrontier
jue. 9/196:06 pmONT - PHL
1 stop8h 29mFrontier
Deal found 7/24$164
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/318:30 pmPHL - ONT
1 stop13h 47mFrontier
sáb. 9/72:47 pmONT - PHL
1 stop12h 38mFrontier
Deal found 7/24$165
This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/1312:57 pmPHL - ONT
1 stop13h 32mFrontier
jue. 8/226:00 amONT - PHL
1 stop9h 23mFrontier
Deal found 7/25$166
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/218:29 pmPHL - ONT
1 stop13h 48mFrontier
mié. 8/286:00 amONT - PHL
1 stop8h 44mFrontier
Deal found 7/25$167
This Frontier deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/1312:57 pmPHL - ONT
1 stop13h 32mFrontier
jue. 8/226:00 amONT - PHL
1 stop9h 23mFrontier
Deal found 7/25$168
This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/318:30 pmPHL - ONT
1 stop30h 29mFrontier
dom. 9/152:45 pmONT - PHL
1 stop12h 15mFrontier
Deal found 7/25$169
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/178:30 pmPHL - ONT
1 stop13h 47mFrontier
mié. 8/216:00 amONT - PHL
1 stop8h 44mFrontier
Deal found 7/25$170
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/168:38 pmPHL - ONT
1 stop13h 39mFrontier
sáb. 8/246:31 pmONT - PHL
1 stop8h 07mFrontier
Deal found 7/24$172
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/178:30 pmPHL - ONT
1 stop13h 47mFrontier
jue. 8/226:00 amONT - PHL
1 stop9h 23mFrontier
Deal found 7/25$173

Philadelphia to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Philadelphia and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated julio 25, 2024.
Listed are some of the best fares we've found on flights departing from Philadelphia to Ontario in 2024. For more flight deals, be sure to check back very soon.
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/48:29 pmPHL - ONT
1 stop7h 22mFrontier
sáb. 9/78:05 pmONT - PHL
1 stop7h 20mFrontier
Deal found 7/24$161
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/48:29 pmPHL - ONT
1 stop7h 22mFrontier
jue. 9/56:06 pmONT - PHL
1 stop8h 29mFrontier
Deal found 7/24$162
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/58:15 amPHL - ONT
1 stop9h 15mFrontier
jue. 9/56:06 pmONT - PHL
1 stop8h 29mFrontier
Deal found 7/24$163
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/318:30 pmPHL - ONT
1 stop13h 47mFrontier
jue. 9/196:06 pmONT - PHL
1 stop8h 29mFrontier
Deal found 7/24$164
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/318:30 pmPHL - ONT
1 stop13h 47mFrontier
sáb. 9/72:47 pmONT - PHL
1 stop12h 38mFrontier
Deal found 7/24$165
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/312:57 pmPHL - ONT
1 stop13h 32mFrontier
jue. 9/56:06 pmONT - PHL
1 stop8h 29mFrontier
Deal found 7/24$166
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/17:03 pmPHL - ONT
1 stop7h 56mFrontier
sáb. 9/78:05 pmONT - PHL
1 stop7h 20mFrontier
Deal found 7/24$167
This Frontier deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/1312:57 pmPHL - ONT
1 stop13h 32mFrontier
jue. 8/226:00 amONT - PHL
1 stop9h 23mFrontier
Deal found 7/25$168
This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/318:30 pmPHL - ONT
1 stop30h 29mFrontier
dom. 9/152:45 pmONT - PHL
1 stop12h 15mFrontier
Deal found 7/25$169

Philadelphia to Ontario flights leaving soon

Find last-minute flight options from Philadelphia to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated julio 25, 2024.
Users seeking a last-minute flight from Philadelphia to Ontario should consider booking one of these fares. To prevent any unwanted surprises, users should verify their flight info before booking.
This Frontier deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/308:38 pmPHL - ONT
1 stop13h 39mFrontier
mié. 7/3110:30 pmONT - PHL
2 stops16h 43mFrontier
Deal found 7/25$219
This CheapOair deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/308:38 pmPHL - ONT
1 stop13h 39mFrontier
vie. 8/210:03 pmONT - PHL
1 stop28h 35mFrontier
Deal found 7/25$227
This CheapOair deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/308:38 pmPHL - ONT
1 stop13h 39mFrontier
mar. 8/68:27 amONT - PHL
1 stop25h 18mFrontier
Deal found 7/25$261
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/28:20 pmPHL - ONT
1 stop16h 21mFrontier
sáb. 8/246:31 pmONT - PHL
1 stop8h 07mFrontier
Deal found 7/24$262
This CheapOair deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/308:38 pmPHL - ONT
1 stop13h 39mFrontier
jue. 8/112:59 amONT - PHL
1 stop8h 22mFrontier
Deal found 7/25$267
This Frontier deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/308:38 pmPHL - ONT
1 stop13h 39mFrontier
mié. 7/3112:49 amONT - PHL
1 stop12h 59mFrontier
Deal found 7/25$281
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/3110:00 amPHL - ONT
1 stop10h 18mFrontier
mié. 7/3110:30 pmONT - PHL
1 stop29h 25mFrontier
Deal found 7/25$286
This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/21:26 pmPHL - ONT
1 stop13h 13mFrontier
mar. 8/68:27 amONT - PHL
1 stop25h 18mFrontier
Deal found 7/25$292
This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/308:38 pmPHL - ONT
1 stop13h 39mFrontier
mié. 8/77:30 pmONT - PHL
1 stop17h 46mFrontier
Deal found 7/25$301

One-way flights to Ontario from Philadelphia

Search for one-way flight options from Philadelphia to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated julio 25, 2024.
Some of the best available deals we've found on one-way flights from Philadelphia to Ontario. Those seeking round-trip flights from Philadelphia to Ontario should utilize the search form at the the top of the page.
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/123:08 pmPHL - ONT
1 stop8h 21mFrontier
Deal found 7/25$83
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/228:38 pmPHL - ONT
1 stop13h 39mFrontier
Deal found 7/24$86
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/1312:57 pmPHL - ONT
1 stop13h 32mFrontier
Deal found 7/25$87
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/318:30 pmPHL - ONT
1 stop13h 47mFrontier
Deal found 7/24$88
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/1312:57 pmPHL - ONT
1 stop13h 32mFrontier
Deal found 7/24$89
This Frontier deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/288:29 pmPHL - ONT
1 stop13h 48mFrontier
Deal found 7/25$90
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/21:50 pmPHL - ONT
1 stop12h 39mFrontier
Deal found 7/25$92
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/168:38 pmPHL - ONT
1 stop13h 39mFrontier
Deal found 7/25$94
This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/57:00 pmPHL - ONT
1 stop25h 16mFrontier
Deal found 7/25$95

Find flights from Philadelphia to Ontario within your budget

Customize your flight search to find flights from Philadelphia to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated julio 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$161 - $426

Route

Depart

Return

Price

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

mié. 9/4

1 stop7h 22m

Ontario

sáb. 9/7

1 stop7h 20m

$161

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

mié. 9/4

1 stop7h 22m

Ontario

jue. 9/5

1 stop8h 29m

$162

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

jue. 9/5

1 stop9h 15m

Ontario

jue. 9/5

1 stop8h 29m

$163

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

sáb. 8/31

1 stop13h 47m

Ontario

jue. 9/19

1 stop8h 29m

$164

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

sáb. 8/31

1 stop13h 47m

Ontario

sáb. 9/7

1 stop12h 38m

$165

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

sáb. 8/24

2 stops9h 49m

Ontario

sáb. 8/31

1 stop8h 46m

$331

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

jue. 9/5

2 stops30h 16m

Ontario

mar. 9/10

1 stop10h 17m

$365

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

lun. 11/18

1 stop9h 51m

Ontario

lun. 11/25

1 stop9h 00m

$386

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

mar. 10/22

1 stop7h 47m

Ontario

jue. 10/31

1 stop6h 44m

$426

Flights are sorted by cheapest first

Deals found on 7/24

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Ontario. Price data was last updated on July 23, 2024.
The best time to book flights from Philadelphia to Ontario is 26 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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What is the cheapest day to fly from Philadelphia to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Ontario. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Philadelphia to Ontario flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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Best time to book a flight from Philadelphia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

57.2 - 73.4 °F

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated julio 25, 2024.
Peruse reviews from past customers who have flown with Delta, Frontier and United Airlines from Philadelphia to Ontario to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,365 reviews

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Alaska Airlines
8.1
Very good
9,365 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Delta
8.0
Very good
9,630 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

United Airlines
7.4
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

American Airlines
7.3
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Frontier
6.2
Okay
3,835 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Overall

8.1

Entertainment

7.2

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Philadelphia to Ontario for under $200 on Cheapflights?

    Yes, there are multiple flights from Philadelphia to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $161, but on average you can expect to pay $171.

  • Are there last-minute flights available from Philadelphia to Ontario for under $300?

    There are currently 20+ open flights from Philadelphia to Ontario within the next 7 days for less than $300.

  • What is the cheapest airline to fly from Philadelphia to Ontario round-trip?

    Our cheapest airline available from Philadelphia to Ontario is Frontier. Our recent data shows that you can find tickets from as low as $161 on this airline. Users have found that Frontier is 55% cheaper than the other options available to this destination.

  • What does PHL to ONT mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Philadelphia Airport to Ontario Airport flight would often be abbreviated as a PHL to ONT flight.

  • Can I find deals for flights from Philadelphia to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Philadelphia to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Philadelphia to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Philadelphia to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Philadelphia to Ontario that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Ontario.

  • Can I find deals for business class flights from Philadelphia to Ontario?

    Yes. Cheapflights offers flight deals from Philadelphia to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Philadelphia to Ontario that allow pets onboard?

    Many airlines flying from Philadelphia to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Philadelphia to Ontario?

    Yes, you can often find last-minute deals on Philadelphia to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Philadelphia to Ontario flight deals updated?

    The Philadelphia to Ontario flight deals you see on this page were last updated on 7/25.

  • What are the most popular airlines that fly from Philadelphia to Ontario?

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Philadelphia to Ontario.

  • What is the cheapest month to book a flight from Philadelphia to Ontario?

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Ontario (average of $237). Flying from Philadelphia to Ontario in July is currently the most expensive (average of $293). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 5 airlines flying from Philadelphia to Ontario

Discover the top 5 airlines that operate flights from Philadelphia to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated julio 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$159Average$289FlexibilityNo cancel feeOn-time65%
FrontierCheapest$168Average$267FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$182Average$481FlexibilityNo cancel feeOn-time69%
DeltaCheapest$259Average$409FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$269Average$408FlexibilityNo cancel feeOn-time71%
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Search flights from Philadelphia to Ontario by cabin class

Find flights from Philadelphia to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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