How many flights depart from Ontario to Pittsburgh on average per week?

The number of flights available between Ontario and Pittsburgh is 4 per week as of December 2025. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.

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

Delta, American Airlines, and Alaska Airlines 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 December 2025, 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.

$74 Cheap Flights from Ontario to Pittsburgh in 2025/26

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Find the cheapest flights from Ontario to Pittsburgh

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Cheap round-trip flights

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6:00 am - 3:19 pm

ONT

PIT

6h 19m1 stop

4:14 pm - 11:59 pm

PIT

ONT

10h 45m1 stop

$217Frontier

Fri, Feb 27 - Mon, Mar 2

6:00 am - 4:42 pm

ONT

PIT

7h 42m1 stop

5:32 pm - 11:58 pm

PIT

ONT

9h 26m1 stop

$301Delta

Sat, Jan 17 - Tue, Jan 20

6:00 am - 6:28 pm

ONT

PIT

9h 28m1 stop

7:24 pm - 11:59 pm

PIT

ONT

31h 35m1 stop

$303Alaska Airlines

Tue, Mar 31 - Tue, Apr 7

4:03 pm - 6:46 pm

ONT

PIT

23h 43m1 stop

7:00 am - 11:56 pm

PIT

ONT

19h 56m1 stop

$304Alaska Airlines

Thu, Jan 22 - Mon, Jan 26

6:00 am - 4:42 pm

ONT

PIT

7h 42m1 stop

6:00 am - 11:31 am

PIT

ONT

8h 31m1 stop

$308Delta

Sat, Jan 17 - Sat, Jan 24

10:30 pm - 9:49 am

ONT

PIT

8h 19m1 stop

6:00 am - 11:31 am

PIT

ONT

8h 31m1 stop

$309Delta

Sat, Jan 17 - Sat, Jan 24

6:00 am - 6:28 pm

ONT

PIT

9h 28m1 stop

7:24 pm - 11:59 pm

PIT

ONT

31h 35m1 stop

$313Alaska Airlines

Tue, Mar 31 - Mon, Apr 6

10:58 am - 10:07 pm

ONT

PIT

8h 09m1 stop

6:54 am - 12:03 pm

PIT

ONT

8h 09m1 stop

$314American Airlines

Fri, Jan 16 - Mon, Jan 19

6:00 am - 7:01 pm

ONT

PIT

10h 01m2 stops

4:38 pm - 9:58 pm

PIT

ONT

8h 20m1 stop

$320United Airlines

Fri, Jan 16 - Mon, Jan 19

6:00 am - 6:28 pm

ONT

PIT

9h 28m1 stop

7:24 pm - 6:13 pm

PIT

ONT

25h 49m1 stop

$322Alaska Airlines

Wed, Apr 1 - Tue, Apr 7

Delta flights from Ontario to Pittsburgh

Our best Delta deals on Ontario to Pittsburgh flight tickets

Delta

Jan 17

ONT6:00 amOntario

7h 42m

1 stop

PIT4:42 pmPittsburgh

Jan 20

PIT5:32 pmPittsburgh

9h 26m

1 stop

ONT11:58 pmOntario

$301

Find similar

Delta

Jan 17

ONT6:00 amOntario

7h 42m

1 stop

PIT4:42 pmPittsburgh

Jan 24

PIT6:00 amPittsburgh

8h 31m

1 stop

ONT11:31 amOntario

$308

Find similar

Delta

Jan 17

ONT10:30 pmOntario

8h 19m

1 stop

PIT9:49 amPittsburgh

Jan 24

PIT6:00 amPittsburgh

8h 31m

1 stop

ONT11:31 amOntario

$309

Find similar

Alaska Airlines flights from Ontario to Pittsburgh

Our best Alaska Airlines deals on Ontario to Pittsburgh flight tickets

Alaska Airlines

Mar 31

ONT6:00 amOntario

9h 28m

1 stop

PIT6:28 pmPittsburgh

Apr 7

PIT7:24 pmPittsburgh

31h 35m

1 stop

ONT11:59 pmOntario

$303

Find similar

Alaska Airlines

Jan 22

ONT4:03 pmOntario

23h 43m

1 stop

PIT6:46 pmPittsburgh

Jan 26

PIT7:00 amPittsburgh

19h 56m

1 stop

ONT11:56 pmOntario

$304

Find similar

Alaska Airlines

Mar 31

ONT6:00 amOntario

9h 28m

1 stop

PIT6:28 pmPittsburgh

Apr 6

PIT7:24 pmPittsburgh

31h 35m

1 stop

ONT11:59 pmOntario

$313

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Fri 2/27

6:00 am-3:19 pm

1 stop6h 19m

Pittsburgh

Mon 3/2

4:14 pm-11:59 pm

1 stop10h 45m

$217

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 1/17

6:00 am-4:42 pm

1 stop7h 42m

Pittsburgh

Tue 1/20

5:32 pm-11:58 pm

1 stop9h 26m

$301

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 3/31

6:00 am-6:28 pm

1 stop9h 28m

Pittsburgh

Tue 4/7

7:24 pm-11:59 pm

1 stop31h 35m

$303

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Thu 1/22

4:03 pm-6:46 pm

1 stop23h 43m

Pittsburgh

Mon 1/26

7:00 am-11:56 pm

1 stop19h 56m

$304

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 1/17

6:00 am-4:42 pm

1 stop7h 42m

Pittsburgh

Sat 1/24

6:00 am-11:31 am

1 stop8h 31m

$308

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 1/17

10:30 pm-9:49 am

1 stop8h 19m

Pittsburgh

Sat 1/24

6:00 am-11:31 am

1 stop8h 31m

$309

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 3/31

6:00 am-6:28 pm

1 stop9h 28m

Pittsburgh

Mon 4/6

7:24 pm-11:59 pm

1 stop31h 35m

$313

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Fri 1/16

10:58 am-10:07 pm

1 stop8h 09m

Pittsburgh

Mon 1/19

6:54 am-12:03 pm

1 stop8h 09m

$314

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Fri 1/16

6:00 am-7:01 pm

2 stops10h 01m

Pittsburgh

Mon 1/19

4:38 pm-9:58 pm

1 stop8h 20m

$320

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 4/1

6:00 am-6:28 pm

1 stop9h 28m

Pittsburgh

Tue 4/7

7:24 pm-6:13 pm

1 stop25h 49m

$322

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

Other information

What is the cheapest month to fly to Pittsburgh?

In general, January 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 $360. The month of August is another great option to travel to Pittsburgh, with average flight prices from Ontario averaging around $377.

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 $274. 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 $383. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Ontario to Pittsburgh flights are usually those with departure times in the morning. Our users have found flights to Pittsburgh in the morning for as low as $327. Flights to Pittsburgh are more costly at noon, with an average ticket price of $354. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $434 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 December 2025, prices for Ontario to Pittsburgh flights are approximately 87% 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 27m
Direct flights	None

The fastest flight from Ontario to Pittsburgh takes 6h 27m

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 27m.
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 December 2025, 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 49% of the total bookings. Other popular airlines include American Airlines with 24%, United Airlines with 15%, 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
Delta	PriceFrom $296	Free Cancellation	Rating 7.9 8,018 reviews	Search Delta flights
Southwest	PriceFrom $306	Free Cancellation	Rating 8.0 4,258 reviews	Search Southwest flights
United Airlines	PriceFrom $310	Free Cancellation	Rating 7.4 9,116 reviews	Search United Airlines flights
American Airlines	PriceFrom $317	Free Cancellation	Rating 7.2 11,068 reviews	Search American Airlines flights

Southwest Flights From Ontario to Pittsburgh
The lowest priced Southwest flight from Ontario to Pittsburgh from the last 72 hours was $306. Generally, Southwest has 4 flights on this route every week with an average price of $384. Southwest is rated 8.0/10 by our users.

Washington

Monroeville

Wheeling

Butler

Canonsburg

Triadelphia

New Castle

West Mifflin

Steubenville

Belle Vernon

Moon

Coraopolis

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.