What airlines fly to Pittsburgh?

Southwest, American Airlines and Delta are the top three most popular airlines that fly to Pittsburgh from Ontario according to our data. Southwest is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Pittsburgh. Keep in mind that there are 5 different airlines that fly to Pittsburgh on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to Pittsburgh?

United Airlines, Alaska Airlines, and Delta are the most popular carriers operating from Ontario to Pittsburgh

When did momondo last update prices for flights from Ontario Airport to Pittsburgh Airport?

Prices for flights from Ontario Airport to Pittsburgh Airport are updated daily.

How many operators does momondo search for flights from Ontario Airport to Pittsburgh Airport?

As of March 2026, there are 4 operators available to choose from for flights from Ontario Airport to Pittsburgh Airport.

How old do you have to be to fly from Ontario Airport to Pittsburgh Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Pittsburgh Airport.

What documentation or ID do you need to fly to Pittsburgh Airport?

The travel and health documents you'll need for your trip to Pittsburgh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Pittsburgh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$159 Cheap Flights from Ontario to Pittsburgh in 2026

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Find the cheapest flights from Ontario to Pittsburgh

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:34 pm - 10:50 pm

ONT

PIT

6h 16m

1 stop

5:55 pm - 10:31 pm

PIT

ONT

7h 36m

1 stop

$317United Airlines

Wed, Apr 1 - Wed, Apr 8

1:34 pm - 10:50 pm

ONT

PIT

6h 16m

1 stop

10:49 am - 5:47 pm

PIT

ONT

9h 58m

2 stops

$322United Airlines

Wed, Apr 1 - Wed, Apr 8

11:05 am - 11:00 pm

ONT

PIT

8h 55m

2 stops

6:05 am - 11:55 am

PIT

ONT

8h 50m

2 stops

$327Southwest

Wed, Apr 1 - Wed, Apr 8

2:39 pm - 12:33 am

ONT

PIT

6h 54m

1 stop

6:05 pm - 10:36 pm

PIT

ONT

7h 31m

1 stop

$328American Airlines

Fri, Apr 3 - Tue, Apr 7

6:00 am - 4:35 pm

ONT

PIT

7h 35m

1 stop

5:32 pm - 10:43 pm

PIT

ONT

8h 11m

1 stop

$334Delta

Sat, Apr 18 - Sat, Apr 25

11:55 pm - 10:05 am

ONT

PIT

7h 10m

1 stop

6:00 pm - 9:50 pm

PIT

ONT

6h 50m

1 stop

$335Southwest

Wed, Apr 1 - Wed, Apr 8

11:59 pm - 10:44 am

ONT

PIT

7h 45m

1 stop

3:30 pm - 9:07 pm

PIT

ONT

8h 37m

1 stop

$336American Airlines

Wed, Apr 8 - Sat, Apr 11

10:33 am - 6:28 pm

ONT

PIT

28h 55m

1 stop

7:17 pm - 9:45 am

PIT

ONT

17h 28m

1 stop

$337Alaska Airlines

Tue, Apr 14 - Wed, Apr 22

2:39 pm - 12:33 am

ONT

PIT

6h 54m

1 stop

10:55 am - 6:24 pm

PIT

ONT

10h 29m

2 stops

$345American Airlines

Fri, Apr 3 - Tue, Apr 7

10:15 pm - 9:15 am

ONT

PIT

8h 00m

1 stop

11:55 am - 6:33 pm

PIT

ONT

9h 38m

1 stop

$348Delta

Sat, Apr 18 - Sat, Apr 25

Delta flights from Ontario to Pittsburgh

Our best Delta deals on Ontario to Pittsburgh flight tickets

Delta

Apr 18

ONT6:00 amOntario

7h 35m

1 stop

PIT4:35 pmPittsburgh

Apr 25

PIT5:32 pmPittsburgh

8h 11m

1 stop

ONT10:43 pmOntario

$334

Delta

Apr 18

ONT10:15 pmOntario

8h 00m

1 stop

PIT9:15 amPittsburgh

Apr 25

PIT11:55 amPittsburgh

9h 38m

1 stop

ONT6:33 pmOntario

$348

Delta

Jun 2

ONT10:00 pmOntario

8h 02m

1 stop

PIT9:02 amPittsburgh

Jun 9

PIT5:35 pmPittsburgh

9h 09m

1 stop

ONT11:44 pmOntario

$357

Alaska Airlines flights from Ontario to Pittsburgh

Our best Alaska Airlines deals on Ontario to Pittsburgh flight tickets

Alaska Airlines

Apr 14

ONT10:33 amOntario

28h 55m

1 stop

PIT6:28 pmPittsburgh

Apr 22

PIT7:17 pmPittsburgh

17h 28m

1 stop

ONT9:45 amOntario

$337

Alaska Airlines

Apr 15

ONT6:00 amOntario

9h 28m

1 stop

PIT6:28 pmPittsburgh

Apr 21

PIT7:24 pmPittsburgh

17h 21m

1 stop

ONT9:45 amOntario

$383

Alaska Airlines

Apr 15

ONT6:00 amOntario

9h 28m

1 stop

PIT6:28 pmPittsburgh

Apr 20

PIT7:24 pmPittsburgh

17h 15m

1 stop

ONT9:39 amOntario

$413

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/1

1:34 pm-10:50 pm

1 stop6h 16m

Pittsburgh

Wed 4/8

5:55 pm-10:31 pm

1 stop7h 36m

$317

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/1

1:34 pm-10:50 pm

1 stop6h 16m

Pittsburgh

Wed 4/8

10:49 am-5:47 pm

2 stops9h 58m

$322

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/1

11:05 am-11:00 pm

2 stops8h 55m

Pittsburgh

Wed 4/8

6:05 am-11:55 am

2 stops8h 50m

$327

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Fri 4/3

2:39 pm-12:33 am

1 stop6h 54m

Pittsburgh

Tue 4/7

6:05 pm-10:36 pm

1 stop7h 31m

$328

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 4/18

6:00 am-4:35 pm

1 stop7h 35m

Pittsburgh

Sat 4/25

5:32 pm-10:43 pm

1 stop8h 11m

$334

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/1

11:55 pm-10:05 am

1 stop7h 10m

Pittsburgh

Wed 4/8

6:00 pm-9:50 pm

1 stop6h 50m

$335

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/8

11:59 pm-10:44 am

1 stop7h 45m

Pittsburgh

Sat 4/11

3:30 pm-9:07 pm

1 stop8h 37m

$336

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 4/14

10:33 am-6:28 pm

1 stop28h 55m

Pittsburgh

Wed 4/22

7:17 pm-9:45 am

1 stop17h 28m

$337

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Fri 4/3

2:39 pm-12:33 am

1 stop6h 54m

Pittsburgh

Tue 4/7

10:55 am-6:24 pm

2 stops10h 29m

$345

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 4/18

10:15 pm-9:15 am

1 stop8h 00m

Pittsburgh

Sat 4/25

11:55 am-6:33 pm

1 stop9h 38m

$348

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Pittsburgh

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Pittsburgh?

In general, February is the cheapest month to fly from Ontario to Pittsburgh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $304. The month of December is another great option to travel to Pittsburgh, with average flight prices from Ontario averaging around $341.

How far in advance should I book a flight to Pittsburgh?

You are more likely to see cheaper flights to Pittsburgh from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Pittsburgh for around $410 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Pittsburgh from Ontario for as low as $286 on momondo.

How have Ontario to Pittsburgh flight prices changed over time?

As of March 2026, prices for Ontario to Pittsburgh flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Pittsburgh

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Pittsburgh according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Pittsburgh (ONT to PIT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Pittsburgh

Fastest flight time	6h 15m
Direct flights	None

The fastest flight from Ontario to Pittsburgh takes 6h 15m

There are no direct flights from Ontario to Pittsburgh. There are no popular flight routes from Ontario to Pittsburgh.

Search flight deals

How far is Ontario to Pittsburgh by plane?
A flight from Ontario to Pittsburgh will travel around 2099.2 mi. In terms of flight time, this usually takes a little over 6h 15m.
When did momondo last update prices for flights from Ontario Airport to Pittsburgh Airport?
Prices for flights from Ontario Airport to Pittsburgh Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Pittsburgh Airport?
As of March 2026, there are 4 operators available to choose from for flights from Ontario Airport to Pittsburgh Airport.
How old do you have to be to fly from Ontario Airport to Pittsburgh Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Pittsburgh Airport.
What documentation or ID do you need to fly to Pittsburgh Airport?
The travel and health documents you'll need for your trip to Pittsburgh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Pittsburgh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Pittsburgh?
Based on momondo bookings for flights between Ontario and Pittsburgh, the leading airline is Southwest, making up 51% of the total bookings. Other popular airlines include American Airlines with 24%, United Airlines with 13%, and Delta with 12%.

Best airlines flying from Ontario to Pittsburgh

Compare and see reviews for airlines that fly from Ontario to Pittsburgh with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $285	Free Cancellation	Rating 7.1 11,403 reviews	Search American Airlines flights
United Airlines	PriceFrom $286	Free Cancellation	Rating 7.4 9,408 reviews	Search United Airlines flights
Delta	PriceFrom $296	Free Cancellation	Rating 7.9 8,272 reviews	Search Delta flights
Southwest	PriceFrom $306	Free Cancellation	Rating 8.0 4,313 reviews	Search Southwest flights

Washington

Monroeville

Wheeling

Butler

Canonsburg

New Castle

Triadelphia

West Mifflin

Belle Vernon

Steubenville

Coraopolis

Moon

Mars

Wexford

Cadiz

Chester

Bridgeport

Edgewood

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Pittsburgh?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Pittsburgh from Ontario.

Can I find flights from Ontario to Pittsburgh with flexible booking policies on momondo?

All flight searches from Ontario to Pittsburgh on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Pittsburgh?

Once you have performed a search for Ontario to Pittsburgh flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Pittsburgh right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Pittsburgh now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Pittsburgh and let you know when they change.