$151 Cheap Delta flights Ontario (ONT) to Pittsburgh (PIT)

View $151 flight on Tue, Jan 20, 2026Opens in a new window

$151 Cheap Delta flights Ontario (ONT) to Pittsburgh (PIT)

Prices were available within the past 7 days and start at $151 for one-way flights and $301 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Feb 14 - Wed, Feb 18
ONT
Ontario
PIT
Pittsburgh
$301 Roundtrip, found 6 days ago
$301
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Feb 14 from Ontario to Pittsburgh, returning Wed, Feb 18, priced at $301 found 6 days ago

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

September is typically the cheapest month to fly

From $206 - $549 per traveler.

Alternative airports near Pittsburgh

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Pittsburgh Intl. PIT. Cheapest option available. Average driving time to city center is 23 minutes. Flights from $435
PIT
Pittsburgh Intl.
Cheapest
Average driving time to city center23 min
Flights from $435
Flights from Ontario (ONT) to Pittsburgh (PIT)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Pittsburgh Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
American Airlines
Distance
2083 mi
Average flight time
6 hours 10 mins

Frequently asked questions

How much is a Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Pittsburgh Intl. Airport (PIT)?
You'll discover affordable round-trip Delta Air Lines flights from $301 from ONT to PIT by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $151 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from ONT to PIT with Delta Air Lines?
January is one of the most affordable months to jet off to Pittsburgh with Delta Air Lines. You could also find great prices on one-way and round-trip tickets in February.
What is the cheapest time to book flights from Los Angeles - Ontario Intl. Airport (ONT) to Pittsburgh Intl. Airport (PIT) with Delta Air Lines?
Start searching one to three months ahead of your travel date to get cheap fares on Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT) to Pittsburgh Intl. Airport (PIT). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic journeys.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from Los Angeles - Ontario Intl. Airport (ONT) to Pittsburgh Intl. Airport (PIT)?
To find out if there's a direct journey from ONT to PIT with Delta Air Lines or another carrier, use our "Nonstop" filter when browsing for flights.
What is the earliest Delta Air Lines flight from ONT to PIT?
To find the earliest departures from ONT to PIT with Delta Air Lines, sort your results by "Morning" and "Early Morning." Choosing an early flight generally means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in Pittsburgh?
Take a Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Pittsburgh, and you'll probably come in to Pittsburgh Intl. Airport (PIT). This is the airline's main hub here.
Why fly with Delta Air Lines from ONT to PIT?
Delta Air Lines makes traveling from ONT to PIT more enjoyable with an excellent in-flight experience and a rewarding loyalty program. You even have the chance to collect points with Delta SkyMiles. Be sure to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Pittsburgh Intl. Airport (PIT)?
You can usually reschedule or cancel your flight, although there may be a charge if your booking was made over 24 hours ago. Need to keep your options open? Use Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge extra if you have to adjust your plans. To update your booking, head to "Trips," select your flight and click on "Manage Booking" for further information.

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*Available to One Key members.