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$144+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PIT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 12, 2025.

Round-trip from

$289
(American Airlines)

One-way from

$144
(Alaska Airlines)

Popular in

February

Cheapest in

August

Average price

$455
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 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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 9/310:54 amONT - PIT
1 stop8h 44mAmerican Airlines
Sat 9/63:06 pmPIT - ONT
1 stop9h 18mAmerican Airlines
Deal found 6/11$289
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 8/211:15 pmONT - PIT
1 stop6h 28mUnited Airlines
Sat 8/238:55 amPIT - ONT
1 stop6h 37mUnited Airlines
Deal found 6/10$293
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/116:58 pmONT - PIT
1 stop8h 45mHawaiian Airlines
Thu 8/148:03 amPIT - ONT
1 stop9h 43mHawaiian Airlines
Deal found 6/10$297
This Southwest deal was found by Cheapflights users on 6/9. 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.
Sat 10/258:10 amONT - PIT
1 stop8h 45mSouthwest
Mon 10/276:00 pmPIT - ONT
1 stop7h 50mSouthwest
Deal found 6/9$318
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 9/23:04 pmONT - PIT
1 stop12h 44mAlaska Airlines
Fri 9/57:42 pmPIT - ONT
1 stop18h 02mAlaska Airlines
Deal found 6/10$328
This Frontier deal was found by Cheapflights users on 6/11. 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.
Sun 7/2712:59 amONT - PIT
1 stop12h 46mFrontier
Mon 8/115:40 pmPIT - ONT
1 stop9h 10mFrontier
Deal found 6/11$331
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 7/2810:05 pmONT - PIT
2 stops17h 09mDelta
Wed 8/134:31 pmPIT - ONT
1 stop8h 49mDelta
Deal found 6/11$337
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Fri 6/276:00 amONT - PIT
1 stop8h 43mMultiple Airlines
Sun 6/297:40 pmPIT - ONT
1 stop19h 12mMultiple Airlines
Deal found 6/11$390

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 12, 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

Wed 9/3

10:54 am-10:38 pm

1 stop8h 44m

Pittsburgh

Sat 9/6

3:06 pm-9:24 pm

1 stop9h 18m

$289

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Thu 8/21

1:15 pm-10:43 pm

1 stop6h 28m

Pittsburgh

Sat 8/23

8:55 am-12:32 pm

1 stop6h 37m

$293

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 8/11

6:58 pm-6:43 am

1 stop8h 45m

Pittsburgh

Thu 8/14

8:03 am-2:46 pm

1 stop9h 43m

$297

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 10/25

8:10 am-7:55 pm

1 stop8h 45m

Pittsburgh

Mon 10/27

6:00 pm-10:50 pm

1 stop7h 50m

$318

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 9/2

3:04 pm-6:48 am

1 stop12h 44m

Pittsburgh

Fri 9/5

7:42 pm-10:44 am

1 stop18h 02m

$328

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sun 7/27

12:59 am-4:45 pm

1 stop12h 46m

Pittsburgh

Mon 8/11

5:40 pm-11:50 pm

1 stop9h 10m

$331

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 7/28

10:05 pm-6:14 pm

2 stops17h 09m

Pittsburgh

Mon 8/11

4:31 pm-10:20 pm

1 stop8h 49m

$337

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Fri 6/27

6:00 am-5:43 pm

1 stop8h 43m

Pittsburgh

Sun 6/29

7:40 pm-11:52 am

1 stop19h 12m

$390

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 8/12

6:58 pm-6:43 am

1 stop8h 45m

$144

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 8/11

6:58 pm-6:43 am

1 stop8h 45m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 15 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 9, 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 12, 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 12, 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

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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?

    American Airlines, at $289, was found to be the cheapest airline from Ontario to Pittsburgh.Alternate airlines to your destination round-trip include United Airlines and Hawaiian Airlines. American Airlines is 35% 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $144. Hawaiian Airlines flights start at $149 while deals on Frontier start at $176 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
Monroeville
Washington
Steubenville
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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$207Average$323FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$467FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$306Average$466FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$312Average$437FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$342Average$439FlexibilityNo cancel feeOn-time63%

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