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Pennsylvania

$64+ Cheap flights from Ontario (ONT) to Pennsylvania

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Ontario to Pennsylvania

Cheapest flights from Ontario to Pennsylvania
Explore the most affordable flight options available from Ontario to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/38:40 am
ONT
-
DCA
1 stop10h 19m
Frontier
Sat 3/76:00 pm
DCA
-
ONT
1 stop8h 59m
Frontier
Deal found 1/28$134
This Frontier deal was found by Cheapflights users on 1/28. 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.
Sat 2/216:00 am
ONT
-
DCA
1 stop7h 59m
Frontier
Wed 2/252:00 pm
DCA
-
ONT
1 stop10h 34m
Frontier
Deal found 1/28$148
This Trip.com deal was found by Cheapflights users on 1/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:00 am
ONT
-
DCA
1 stop7h 59m
Frontier
Tue 3/32:00 pm
DCA
-
ONT
1 stop10h 34m
Frontier
Deal found 1/29$153
This Frontier deal was found by Cheapflights users on 1/28. 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.
Mon 2/236:10 am
ONT
-
DCA
1 stop12h 49m
Frontier
Sat 2/282:00 pm
DCA
-
ONT
1 stop12h 59m
Frontier
Deal found 1/28$158
This Frontier deal was found by Cheapflights users on 1/27. 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.
Thu 2/192:08 pm
ONT
-
DCA
1 stop20h 07m
Frontier
Wed 2/258:00 am
DCA
-
ONT
1 stop16h 34m
Frontier
Deal found 1/27$160
This Frontier deal was found by Cheapflights users on 1/27. 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.
Sat 2/146:00 am
ONT
-
DCA
1 stop7h 59m
Frontier
Sat 2/282:00 pm
DCA
-
ONT
1 stop12h 59m
Frontier
Deal found 1/27$164
This CheapOair deal was found by Cheapflights users on 1/27. 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.
Thu 2/192:08 pm
ONT
-
DCA
1 stop20h 07m
Frontier
Tue 2/248:00 am
DCA
-
ONT
1 stop16h 34m
Frontier
Deal found 1/27$169
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/86:15 am
ONT
-
DCA
1 stop27h 47m
Frontier
Tue 3/108:00 am
DCA
-
ONT
1 stop18h 59m
Frontier
Deal found 1/28$173
This Mytrip deal was found by Cheapflights users on 1/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:08 pm
ONT
-
PHL
1 stop24h 47m
Frontier
Mon 2/235:47 pm
PHL
-
ONT
1 stop9h 12m
Frontier
Deal found 1/27$174
This Mytrip deal was found by Cheapflights users on 1/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:08 pm
ONT
-
DCA
1 stop19h 52m
Frontier
Mon 3/26:00 pm
DCA
-
ONT
1 stop8h 59m
Frontier
Deal found 1/27$174
This CheapOair deal was found by Cheapflights users on 1/27. 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.
Thu 4/308:26 am
ONT
-
PHL
1 stop12h 13m
Frontier
Mon 5/43:41 pm
PHL
-
ONT
1 stop10h 43m
Frontier
Deal found 1/27$180
This Trip.com deal was found by Cheapflights users on 1/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:08 pm
ONT
-
PHL
1 stop24h 47m
Frontier
Thu 2/266:00 am
PHL
-
ONT
1 stop11h 29m
Frontier
Deal found 1/27$185

Find flight deals from Ontario to Pennsylvania

Keep the following information in mind while searching for Ontario to Pennsylvania flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$134
(Kiwi.com)

One-way from

$64
(Trip.com)

Popular in

January

Cheapest in

August

Average price

$553
Provider with most accurate pricing for Los Angeles-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Philadelphia flights.
Search Deals
From Ontario to Pennsylvania
Search Deals
One-way flight from Ontario to Pennsylvania
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Pennsylvania 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 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Ontario to Pennsylvania that are best for you.

Fly from

Ontario

Fly to

Pennsylvania

Route

Depart

Return

Price

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 2/24

5:15 am-4:25 pm

1 stop8h 10m

New York LaGuardia

Tue 3/3

8:30 am-6:40 pm

2 stops13h 10m

$198

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Tue 4/21

11:55 pm-12:35 pm

1 stop9h 40m

New York LaGuardia

Tue 4/28

3:05 pm-10:10 pm

2 stops10h 05m

$198

OntarioWashington, D.C.

ONT - DCA

ONTDCA

Ontario

Sat 3/7

6:15 am-9:59 pm

1 stop12h 44m

Washington, D.C. Reagan-National

Tue 3/10

2:00 pm-1:28 pm

2 stops26h 28m

$212

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 4/30

8:26 am-11:39 pm

1 stop12h 13m

Philadelphia

Mon 5/4

3:41 pm-11:24 pm

1 stop10h 43m

$220

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Wed 3/4

8:40 am-4:37 pm

1 stop28h 57m

Philadelphia

Sun 3/8

8:25 pm-11:59 pm

1 stop30h 34m

$243

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 2/25

1:45 pm-10:58 pm

1 stop6h 13m

Pittsburgh

Wed 3/4

4:47 pm-9:59 pm

1 stop8h 12m

$257

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Wed 2/18

10:20 pm-8:48 am

1 stop7h 28m

New York LaGuardia

Thu 2/26

2:59 pm-9:05 pm

1 stop9h 06m

$257

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Mon 3/2

10:20 pm-10:48 am

1 stop9h 28m

New York LaGuardia

Fri 3/6

4:00 pm-9:05 pm

1 stop8h 05m

$257

OntarioNew York

ONT - LGA

ONTLGA

Ontario

Sat 2/14

6:00 am-5:12 pm

1 stop8h 12m

New York LaGuardia

Sat 2/28

6:35 am-12:07 pm

1 stop8h 32m

$257

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 2/17

5:00 pm-6:25 am

1 stop10h 25m

New York John F Kennedy Intl

Wed 2/18

4:05 pm-11:49 pm

1 stop10h 44m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Ontario 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Pennsylvania

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

Currently, July is the cheapest month in which you can book a flight from Ontario to Pennsylvania (average of $109). Flying from Ontario to Pennsylvania in January is currently the most expensive (average of $178). 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.

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. 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 Pennsylvania. Reviews last updated January 29, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Ontario to Pennsylvania. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

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

  • What airport do you fly from for flights from Ontario to Pennsylvania?

    For a flight from Ontario to Pennsylvania, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How long is the flight from Ontario to Pennsylvania?

    Airlines like Southwest, Frontier, and United Airlines fly from Ontario to Pennsylvania in about 6h 13m. The time it takes to get you to your destination can typically vary by up to 6h 31m. The distance between Ontario and Pennsylvania is about 2084 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Ontario to Pennsylvania?

    The most popular route from Ontario to Pennsylvania is Ontario - Newark. You may also consider Ontario - New York John F Kennedy Intl or Ontario - Washington, D.C. Dulles Intl.

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

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Ontario to Pennsylvania (average of $109). Flying from Ontario to Pennsylvania in January is currently the most expensive (average of $178). 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.

See more FAQs

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Alternative routes for Ontario to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ontario to Pennsylvania

Discover the top 5 airlines that operate flights from Ontario to Pennsylvania. 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 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$238FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$285Average$459FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$286Average$489FlexibilityNo cancel feeOn-time69%
DeltaCheapest$296Average$433FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$306Average$437FlexibilityNo cancel feeOn-time63%

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