£312 Cheap Flights from Pittsburgh (PIT) to Ontario (ONT)

View £312 flight on Mon, 25 Aug 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at £312 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Pittsburgh (PIT) to Ontario (ONT)

August is typically the cheapest month to fly

From £158 - £568 per traveller.

Graph displaying average flight prices per month

Flight from Pittsburgh to Ontario route information
Origin airport
Pittsburgh Intl.
Destination airport
Los Angeles - Ontario Intl.
Distance
3334 km

Compare flights from Pittsburgh to Ontario easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Pittsburgh to Ontario. Operating between them flights per day, 6 airlines cover the route. And fly direct, getting you to Los Angeles - Ontario Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Pittsburgh Intl. to Los Angeles - Ontario Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Pittsburgh Intl. (PIT) to Los Angeles - Ontario Intl. (ONT)

The easiest way to view the best deals on flights from Pittsburgh to Ontario today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Pittsburgh Intl. to Los Angeles - Ontario Intl. start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Pittsburgh and Ontario
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Pittsburgh to Ontario flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Pittsburgh Intl. to Los Angeles - Ontario Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from PIT to Ontario Airport?
The lowest price advertised for a round-trip journey from Pittsburgh Airport to Los Angeles - Ontario Intl. Airport (ONT) is . But you better get a move on. This figure is taken from fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from PIT to Ontario Airport?
This differs from airline to airline, as each has its own terms and conditions. Visit the Customer Service Portal, where you'll find simple instructions on how to cancel your flight online.
How do I find cheap flights from Pittsburgh Intl. Airport (PIT) to ONT that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PIT to ONT flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Pittsburgh Intl. Airport (PIT) to Los Angeles - Ontario Intl. Airport (ONT)?
Lasting around 6 hours and 28 minutes, the flight between PIT and ONT is a good opportunity to do some last-minute trip planning. How about using some of this time to organise your itinerary in Ontario?
How far is the flight from Pittsburgh Intl. Airport (PIT) to Los Angeles - Ontario Intl. Airport (ONT)?
The flight distance from Pittsburgh Airport to Ontario Airport is 3,400 kilometres. Bring along a drink, some snacks and a good movie. Keep yourself entertained and time will zip by.
Which airlines fly direct from Pittsburgh Intl. Airport (PIT) to Los Angeles - Ontario Intl. Airport (ONT)?
If you want to fly straight from PIT to Ontario Airport, you'll need to book a flight with at least one stop. Unfortunately, there are no airlines that fly directly between these airports.
Are Pittsburgh Intl. Airport (PIT) to ONT flight tickets cheaper when they're purchased at the last minute?
Flight prices always go up and down, so not always. While last-minute deals between PIT and Los Angeles - Ontario Intl. Airport (ONT) are possible, it also makes sense to monitor prices well before you fly. In fact, some carriers publicize their prices up to a year ahead of the departure date. Expedia is continuously updating the biggest bargains around, so keep checking back and be ready to pounce when the price is right.

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