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$106+ Cheap flights from Ontario to Pittsburgh (ONT - PIT)

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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PIT
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Pittsburgh are usually found in August or September, booked 20 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from Ontario to Pittsburgh

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Pittsburgh (PIT). 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 June 18, 2025.

Round-trip from

$210
(FlightHub)

One-way from

$106
(Frontier)

Popular in

February

Cheapest in

August

Average price

$461
From Ontario to Pittsburgh
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One-way flight from Ontario to Pittsburgh
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Highest demand for flights based on searches. 12% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Ontario to Pittsburgh

Cheapest flights from Ontario to Pittsburgh
Explore the most affordable flight options available from Ontario to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

This FlightHub deal was found by Cheapflights users on 6/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/265:21 pmONT - PIT
1 stop20h 19mFrontier
Mon 6/305:40 pmPIT - ONT
1 stop18h 21mFrontier
Deal found 6/16$210
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/33:04 pmONT - PIT
1 stop24h 38mAlaska Airlines
Sat 9/67:42 pmPIT - ONT
1 stop18h 02mAlaska Airlines
Deal found 6/16$289
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:10 amONT - PIT
1 stop8h 19mAmerican Airlines
Sat 9/611:53 amPIT - ONT
2 stops9h 18mAmerican Airlines
Deal found 6/16$294
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/110:05 pmONT - PIT
1 stop9h 29mDelta
Sat 7/55:35 amPIT - ONT
1 stop8h 03mDelta
Deal found 6/16$297
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:20 amONT - PIT
2 stops8h 25mSouthwest
Thu 9/185:00 pmPIT - ONT
2 stops8h 55mSouthwest
Deal found 6/15$337
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/151:34 pmONT - PIT
1 stop6h 32mUnited Airlines
Thu 8/216:22 amPIT - ONT
1 stop8h 51mUnited Airlines
Deal found 6/17$347
This Trip.com deal was found by Cheapflights users on 6/16. 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 7/176:00 amONT - PIT
1 stop9h 10mMultiple Airlines
Fri 7/255:40 pmPIT - ONT
1 stop9h 10mMultiple Airlines
Deal found 6/16$359

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Pittsburgh 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 June 18, 2025.
Use the filters below to find and compare flights from Ontario to Pittsburgh that are best for you.

Fly from

Ontario

Fly to

Pittsburgh

Route

Depart

Return

Price

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Thu 7/3

12:59 am-4:40 pm

1 stop12h 41m

Pittsburgh

Mon 7/7

5:40 pm-9:09 am

1 stop18h 29m

$210

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 9/3

3:04 pm-6:42 pm

1 stop24h 38m

Pittsburgh

Sat 9/6

7:42 pm-10:44 am

1 stop18h 02m

$289

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 9/3

6:10 am-5:29 pm

1 stop8h 19m

Pittsburgh

Sat 9/6

11:53 am-6:11 pm

2 stops9h 18m

$294

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 7/1

10:05 pm-10:34 am

1 stop9h 29m

Pittsburgh

Sat 7/5

5:35 am-10:38 am

1 stop8h 03m

$297

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 9/9

6:20 am-5:45 pm

2 stops8h 25m

Pittsburgh

Thu 9/18

5:00 pm-10:55 pm

2 stops8h 55m

$337

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Fri 8/15

1:34 pm-11:06 pm

1 stop6h 32m

Pittsburgh

Thu 8/21

6:22 am-12:13 pm

1 stop8h 51m

$347

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Thu 7/17

6:00 am-6:10 pm

1 stop9h 10m

Pittsburgh

Fri 7/25

5:40 pm-11:50 pm

1 stop9h 10m

$359

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sun 6/29

12:59 am-4:40 pm

1 stop12h 41m

$106

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 8/5

6:58 pm-6:43 am

1 stop8h 45m

$144

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 7/14

6:00 am-6:10 pm

1 stop9h 10m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 14 results
1
2

Best time to book a flight from Ontario to Pittsburgh

Have a flexible travel schedule? Discover the best time to fly to Pittsburgh 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 Pittsburgh

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Pittsburgh. Price data was last updated on June 13, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Pittsburgh, you should look to book at least 20 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Pittsburgh (average of $262). Flying from Ontario to Pittsburgh in November is currently the most expensive (average of $333). 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.

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

Find hourly flight availability from Ontario to Pittsburgh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 18, 2025.

One of the essential ways to save on airfare from Ontario to Pittsburgh is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 23% on airfare.

Rainfall in Pittsburgh by month

Plan your trip to Pittsburgh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Pittsburgh ranges from 2.3 - 4.3 inches per month. June is typically the wettest month, when rainfall can reach 4.3 in. October is typically the driest time to visit Pittsburgh when rainfall is around 2.3 in.

Temperature in Pittsburgh by month

Plan your trip to Pittsburgh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Pittsburgh, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Pittsburgh

Get insights into the airlines that provide service to Pittsburgh. 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 Pittsburgh. Reviews last updated June 18, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Ontario to Pittsburgh to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,964 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,507 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,810 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

  • What are the cheapest airlines flying from Ontario to Pittsburgh round-trip?

    Frontier, at $210, was found to be the cheapest airline from Ontario to Pittsburgh.Alternate airlines to your destination round-trip include Alaska Airlines and American Airlines. Frontier is 53% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Ontario to Pittsburgh one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $106. Alaska Airlines flights start at $144 while deals on American Airlines start at $164 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Pittsburgh 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 Pittsburgh?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Pittsburgh (average of $262). Flying from Ontario to Pittsburgh in November is currently the most expensive (average of $333). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Mars
Washington
Steubenville
Monroeville
Belle Vernon

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Alternative routes for Ontario to Pittsburgh

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 Pittsburgh

Discover the top 5 airlines that operate flights from Ontario to Pittsburgh. 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$207Average$323FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$467FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$292Average$436FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$306Average$466FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$330Average$438FlexibilityNo cancel feeOn-time63%

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