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

Alaska Airlines and Frontier are the most popular carriers operating from Ontario to Pittsburgh

What airlines fly to Pittsburgh?

American Airlines, Breeze Airways and Delta are the top three most popular airlines that fly to Pittsburgh from Ontario according to our data. American Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Pittsburgh. Keep in mind that there are 7 different airlines that fly to Pittsburgh on a routine basis, so you have a few additional options to choose from.

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 January 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.

$96 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.

6:20 am - 7:04 pm

ONT

PIT

9h 44m

1 stop

7:59 pm - 12:20 am

PIT

ONT

7h 21m

1 stop

$201Frontier

Mon, Feb 2 - Mon, Feb 9

2:08 pm - 3:59 pm

ONT

PIT

22h 51m

1 stop

4:14 pm - 11:59 pm

PIT

ONT

10h 45m

1 stop

$210Frontier

Thu, Feb 19 - Mon, Feb 23

6:00 am - 3:59 pm

ONT

PIT

6h 59m

1 stop

4:14 pm - 11:59 pm

PIT

ONT

10h 45m

1 stop

$256Frontier

Fri, Feb 20 - Mon, Feb 23

6:59 pm - 7:01 am

ONT

PIT

9h 02m

1 stop

5:53 pm - 10:30 pm

PIT

ONT

7h 37m

1 stop

$257United Airlines

Sat, May 16 - Tue, May 19

6:20 am - 7:04 pm

ONT

PIT

9h 44m

1 stop

4:44 pm - 11:59 pm

PIT

ONT

10h 15m

1 stop

$259Frontier

Mon, Feb 9 - Fri, Feb 13

6:59 pm - 9:31 am

ONT

PIT

11h 32m

2 stops

5:53 pm - 10:30 pm

PIT

ONT

7h 37m

1 stop

$262United Airlines

Sat, May 16 - Tue, May 19

6:00 am - 3:59 pm

ONT

PIT

6h 59m

1 stop

4:14 pm - 11:59 pm

PIT

ONT

10h 45m

1 stop

$296Frontier

Fri, Feb 20 - Mon, Feb 23

12:02 pm - 6:35 pm

ONT

PIT

27h 33m

1 stop

7:31 pm - 11:32 pm

PIT

ONT

31h 01m

1 stop

$304Alaska Airlines

Tue, Feb 24 - Sun, Mar 1

3:26 pm - 6:21 pm

ONT

PIT

23h 55m

1 stop

7:17 pm - 9:45 am

PIT

ONT

17h 28m

1 stop

$310Alaska Airlines

Wed, Apr 22 - Sat, Apr 25

10:20 pm - 9:09 am

ONT

PIT

7h 49m

1 stop

5:05 pm - 11:49 pm

PIT

ONT

9h 44m

1 stop

$315Delta

Thu, Feb 26 - Mon, Mar 2

Frontier flights from Ontario to Pittsburgh

Our best Frontier deals on Ontario to Pittsburgh flight tickets

Frontier

Feb 2

ONT6:20 amOntario

9h 44m

1 stop

PIT7:04 pmPittsburgh

Feb 9

PIT7:59 pmPittsburgh

7h 21m

1 stop

ONT12:20 amOntario

$201

Frontier

Feb 19

ONT2:08 pmOntario

22h 51m

1 stop

PIT3:59 pmPittsburgh

Feb 23

PIT4:14 pmPittsburgh

10h 45m

1 stop

ONT11:59 pmOntario

$210

Frontier

Feb 20

ONT6:00 amOntario

6h 59m

1 stop

PIT3:59 pmPittsburgh

Feb 23

PIT4:14 pmPittsburgh

10h 45m

1 stop

ONT11:59 pmOntario

$256

United Airlines flights from Ontario to Pittsburgh

Our best United Airlines deals on Ontario to Pittsburgh flight tickets

United Airlines

May 16

ONT6:59 pmOntario

9h 02m

1 stop

PIT7:01 amPittsburgh

May 19

PIT5:53 pmPittsburgh

7h 37m

1 stop

ONT10:30 pmOntario

$257

United Airlines

May 16

ONT6:59 pmOntario

11h 32m

2 stops

PIT9:31 amPittsburgh

May 19

PIT5:53 pmPittsburgh

7h 37m

1 stop

ONT10:30 pmOntario

$262

United Airlines

Feb 20

ONT1:45 pmOntario

6h 12m

1 stop

PIT10:57 pmPittsburgh

Feb 23

PIT10:26 amPittsburgh

13h 24m

2 stops

ONT8:50 pmOntario

$320

Fly from

Fly to

Route

Depart

Return

Price

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 2/2

6:20 am-7:04 pm

1 stop9h 44m

Pittsburgh

Mon 2/9

7:59 pm-12:20 am

1 stop7h 21m

$201

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Thu 2/19

2:08 pm-3:59 pm

1 stop22h 51m

Pittsburgh

Mon 2/23

4:14 pm-11:59 pm

1 stop10h 45m

$210

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Fri 2/20

6:00 am-3:59 pm

1 stop6h 59m

Pittsburgh

Mon 2/23

4:14 pm-11:59 pm

1 stop10h 45m

$256

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 5/16

6:59 pm-7:01 am

1 stop9h 02m

Pittsburgh

Tue 5/19

5:53 pm-10:30 pm

1 stop7h 37m

$257

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 2/9

6:20 am-7:04 pm

1 stop9h 44m

Pittsburgh

Fri 2/13

4:44 pm-11:59 pm

1 stop10h 15m

$259

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 5/16

6:59 pm-9:31 am

2 stops11h 32m

Pittsburgh

Tue 5/19

5:53 pm-10:30 pm

1 stop7h 37m

$262

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Fri 2/20

6:00 am-3:59 pm

1 stop6h 59m

Pittsburgh

Mon 2/23

4:14 pm-11:59 pm

1 stop10h 45m

$296

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 2/24

12:02 pm-6:35 pm

1 stop27h 33m

Pittsburgh

Sun 3/1

7:31 pm-11:32 pm

1 stop31h 01m

$304

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/22

3:26 pm-6:21 pm

1 stop23h 55m

Pittsburgh

Sat 4/25

7:17 pm-9:45 am

1 stop17h 28m

$310

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Thu 2/26

10:20 pm-9:09 am

1 stop7h 49m

Pittsburgh

Mon 3/2

5:05 pm-11:49 pm

1 stop9h 44m

$315

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, December 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 $341. The month of January is another great option to travel to Pittsburgh, with average flight prices from Ontario averaging around $360.

What is the cheapest day to depart on your flight to Pittsburgh?

The cheapest day to depart on your flight to Pittsburgh is on a Wednesday when prices can be found for as low as $276. This is often the case because there is less demand to fly during this day of the week. Flights from Ontario to Pittsburgh on a Monday will generally be more expensive and average around $386. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 $418 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 January 2026, prices for Ontario to Pittsburgh flights are approximately 2% 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 50m
Direct flights	None

The fastest flight from Ontario to Pittsburgh takes 6h 50m

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 50m.
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 January 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 50% of the total bookings. Other popular airlines include American Airlines with 24%, United Airlines with 14%, 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
United Airlines	PriceFrom $286	Free Cancellation	Rating 7.4 9,191 reviews	Search United Airlines flights
Delta	PriceFrom $296	Free Cancellation	Rating 7.9 8,089 reviews	Search Delta flights
Southwest	PriceFrom $306	Free Cancellation	Rating 8.0 4,266 reviews	Search Southwest flights
American Airlines	PriceFrom $317	Free Cancellation	Rating 7.2 11,174 reviews	Search American Airlines flights

Washington

Monroeville

Wheeling

Canonsburg

Butler

Triadelphia

New Castle

West Mifflin

Belle Vernon

Steubenville

Coraopolis

Moon

Wexford

Mars

Freeport

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.