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$153+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PIT
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Pittsburgh are usually found in August or April, 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$300
(CheapOair)

One-way from

$155
(Frontier)

Popular in

February

Cheapest in

August

Average price

$444
Provider with most accurate pricing for Ontario-Pittsburgh flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Pittsburgh flights.
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From Ontario to Pittsburgh
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One-way flight from Ontario to Pittsburgh
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This CheapOair deal was found by Cheapflights users on 3/25. 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.
Thu 5/225:21 pmONT - PIT
1 stop20h 24mFrontier
Mon 5/265:40 pmPIT - ONT
1 stop20h 05mFrontier
Deal found 3/25$300
This Delta deal was found by Cheapflights users on 3/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/236:00 amONT - PIT
1 stop7h 44mDelta
Mon 4/285:39 pmPIT - ONT
1 stop9h 02mDelta
Deal found 3/24$343
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/237:25 pmONT - PIT
2 stops10h 53mAmerican Airlines
Mon 4/285:02 pmPIT - ONT
2 stops9h 48mAmerican Airlines
Deal found 3/24$353
This Southwest deal was found by Cheapflights users on 3/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/73:40 pmONT - PIT
1 stop6h 25mSouthwest
Sun 5/117:20 pmPIT - ONT
1 stop7h 25mSouthwest
Deal found 3/25$390
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/86:41 pmONT - PIT
1 stop7h 14mUnited Airlines
Sun 6/296:09 amPIT - ONT
1 stop9h 05mUnited Airlines
Deal found 3/25$417
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/86:00 amONT - PIT
1 stop9h 36mAlaska Airlines
Mon 4/147:36 pmPIT - ONT
1 stop18h 03mAlaska Airlines
Deal found 3/25$430

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 March 26, 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 6/5

5:21 pm-4:27 pm

1 stop20h 06m

Pittsburgh

Mon 6/9

5:22 pm-11:50 pm

1 stop9h 28m

$300

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 6/4

4:45 pm-6:45 am

1 stop11h 00m

Pittsburgh

Mon 6/9

5:22 pm-11:50 pm

1 stop9h 28m

$325

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/23

6:00 am-4:44 pm

1 stop7h 44m

Pittsburgh

Mon 4/28

5:39 pm-11:41 pm

1 stop9h 02m

$343

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/23

7:25 pm-9:18 am

2 stops10h 53m

Pittsburgh

Mon 4/28

5:02 pm-11:50 pm

2 stops9h 48m

$353

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 5/7

3:40 pm-1:05 am

1 stop6h 25m

Pittsburgh

Sun 5/11

7:20 pm-11:45 pm

1 stop7h 25m

$390

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sun 6/15

6:41 pm-4:55 am

1 stop7h 14m

Pittsburgh

Wed 6/18

7:00 am-12:31 pm

2 stops8h 31m

$415

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 6/10

7:20 pm-6:45 am

1 stop8h 25m

Pittsburgh

Tue 6/24

7:42 pm-12:13 am

1 stop31h 31m

$438

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/23

10:44 am-5:45 am

1 stop16h 01m

$153

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sun 6/1

12:59 am-4:27 pm

1 stop12h 28m

$155

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 6/4

7:20 pm-6:45 am

1 stop8h 25m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 14 results
1
2

Compare providers for flights from Ontario to Pittsburgh

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Pittsburgh in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Pittsburgh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Pittsburgh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Pittsburgh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Pittsburgh flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Pittsburgh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 21, 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 March 26, 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 March 26, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very good
9,789 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Hawaiian Airlines
7.9
Good
2,331 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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 $300, was found to be the cheapest airline from Ontario to Pittsburgh.Alternate airlines to your destination round-trip include Delta and American Airlines. Frontier is 34% 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 $155. Alaska Airlines flights start at $171 while deals on Delta start at $172 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

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Top 6 airlines flying from Ontario to Pittsburgh

Discover the top 6 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$75Average$187FlexibilityNo cancel feeOn-time65%
FrontierCheapest$148Average$323FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$312Average$448FlexibilityNo cancel feeOn-time71%
DeltaCheapest$313Average$443FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$342Average$560FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$346Average$445FlexibilityNo cancel feeOn-time63%
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