Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Ontario (ONT) to Pittsburgh (PIT)

How to find the cheapest flight from Ontario (ONT) to Pittsburgh (PIT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Pittsburgh (PIT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Pittsburgh (PIT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Ontario to Pittsburgh in September , October 2026

30 Sep - 26 Oct $ 426.00
ONT
Ontario
Frontier Airlines
2 STOPS
PIT
Pittsburgh
PIT
Pittsburgh
Frontier Airlines
2 STOPS
ONT
Ontario
Pick dates
30 Sep - 02 Oct $ 1,207.00
ONT
Ontario
Alaska Airlines
1 STOPS
PIT
Pittsburgh
PIT
Pittsburgh
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates
29 Sep - 02 Oct $ 1,211.00
ONT
Ontario
Alaska Airlines
1 STOPS
PIT
Pittsburgh
PIT
Pittsburgh
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates

Last minute flights from Ontario to Pittsburgh

28 Sep - 01 Oct $ 742.00
ONT
Ontario
Frontier Airlines
3 STOPS
PIT
Pittsburgh
PIT
Pittsburgh
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates
28 Sep - 30 Sep $ 1,193.00
ONT
Ontario
Alaska Airlines
1 STOPS
PIT
Pittsburgh
PIT
Pittsburgh
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates
28 Sep - 30 Sep $ 1,204.00
ONT
Ontario
United Airlines
1 STOPS
PIT
Pittsburgh
PIT
Pittsburgh
United Airlines
1 STOPS
ONT
Ontario
Pick dates

One-way flights to Pittsburgh from Ontario

6:15 AM - 10:23 AM
Allegiant Air
2 Stops
27h 35m
ONT - PIT
$ 212
Kiwi
Pick dates
6:32 PM - 10:30 AM
United Airlines
2 Stops
15h 37m
ONT - PIT
$ 484
Kiwi
Pick dates
1:24 PM - 5:37 PM
United Airlines
1 Stops
6h 20m
ONT - PIT
$ 585
Kiwi
Pick dates

How to find the cheapest flight from Ontario (ONT) to Pittsburgh (PIT)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Pittsburgh (PIT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Pittsburgh (PIT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.