CA $319 Cheap Flights from Ontario (ONT) to Pittsburgh (PIT)

View CA $319 flight on Sun, Jul 26, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Pittsburgh International Airport (PIT)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Ontario (ONT) to Pittsburgh (PIT)

Prices were available within the past 7 days and start at CA $319 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How do I find cheap flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.)?
To find a cheap flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.)?
There are approximately 40 connecting flights per day from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.). Some common connection points include Portland Intl. (PDX), Seattle - Tacoma Intl. (SEA), and Denver Intl. (DEN).
What is the earliest flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.)?
The earliest flight from Los Angeles - Ontario Intl. (ONT) to Pittsburgh, PA (PIT-Pittsburgh Intl.) (PIT) typically departs at approximately 1:00 AM local time. This service is operated by American Airlines and is seasonal, active only in August. An early departure like this can help you maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.)?
If you're flying from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.), you'll typically find the most flights on a Friday, with around 36 flights available. This gives you plenty of options to choose from. Major airlines on this route include Southwest Airlines, American Airlines, and Alaska Airlines. Flight schedules are consistent throughout the week, with Friday offering only slightly more flights than other days.
What are the most popular departure times for flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.)?
The most popular departure times for flights from Los Angeles - Ontario Intl. (ONT) to Pittsburgh Intl. (PIT) are in the early morning, between 6am and 9am. About 34% of passengers prefer this time window. Many major carriers, including Southwest Airlines, United Airlines and American Airlines, offer flights during this window. This timing works well for travelers who want to arrive at their destination early in the day.
How long does it take to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.)?
A flight from ONT to PIT with a layover takes around 7 hours 50 minutes, with the route covering approximately 2,084 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.)?
Select the "Business class" and "First class" filters when looking for ONT to PIT flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.) flight with Expedia?
It's easy to earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Pittsburgh from Los Angeles - Ontario Intl. (ONT)?
From Los Angeles - Ontario Intl. (ONT), you can fly directly into Pittsburgh Intl. (PIT) to reach Pittsburgh. Some flights may connect through major hubs like Denver Intl. (DEN), Sky Harbor Intl. (PHX), Portland Intl. (PDX) before reaching Pittsburgh. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.) at the last minute?
Typically, booking a last minute flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.) flight and hotel package?
Securing a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.)?
If you booked your Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Pittsburgh, PA (PIT-Pittsburgh Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Pittsburgh Intl.
Distance
3334 km

Book with confidence

Los Angeles to Pittsburgh Flights

The easy way to book your flights from Ontario to Pittsburgh 

With Expedia, it’s simple to find and book flights to Pittsburgh from Ontario whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 1 airlines that cover this route. There are nonstop flights to Pittsburgh Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario to Pittsburgh today, tomorrow, or this week.  

 

Save dollars with cheap flights from Los Angeles - Ontario Intl., ONT to Pittsburgh Intl., PIT 

Sort your search results by price to find great deals on your flight from Ontario to Pittsburgh—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Pittsburgh from Ontario currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Pittsburgh  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Pittsburgh from Ontario 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Pittsburgh with Expedia today.

Los Angeles to Pittsburgh Flights

Explore a world of travel with Expedia

*Available to Expedia members.