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

Alaska Airlines, United 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 February 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.

$89 Cheap Flights from Ontario to Pittsburgh in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ontario to Pittsburgh

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:08 pm - 3:59 pm

ONT

PIT

22h 51m

1 stop

4:14 pm - 11:59 pm

PIT

ONT

10h 45m

1 stop

$221Frontier

Thu, Feb 19 - Mon, Feb 23

1:45 pm - 10:57 pm

ONT

PIT

6h 12m

1 stop

8:45 am - 5:41 pm

PIT

ONT

11h 56m

2 stops

$242United Airlines

Wed, Mar 4 - Wed, Mar 11

7:00 am - 4:55 pm

ONT

PIT

6h 55m

1 stop

4:50 pm - 9:58 pm

PIT

ONT

8h 08m

1 stop

$257United Airlines

Sat, May 2 - Wed, May 6

6:00 am - 3:52 pm

ONT

PIT

6h 52m

1 stop

10:35 am - 8:36 pm

PIT

ONT

13h 01m

2 stops

$262United Airlines

Sat, May 2 - Wed, May 6

11:58 pm - 12:59 pm

ONT

PIT

10h 01m

2 stops

2:10 pm - 10:07 pm

PIT

ONT

10h 57m

2 stops

$267American Airlines

Tue, Mar 3 - Tue, Mar 10

11:59 pm - 1:57 pm

ONT

PIT

10h 58m

2 stops

5:48 pm - 10:18 pm

PIT

ONT

7h 30m

1 stop

$281United Airlines

Sun, Mar 8 - Wed, Mar 11

7:05 pm - 9:12 am

ONT

PIT

11h 07m

2 stops

5:10 pm - 11:59 pm

PIT

ONT

9h 49m

2 stops

$283American Airlines

Wed, Mar 4 - Wed, Mar 11

11:59 pm - 10:22 am

ONT

PIT

7h 23m

1 stop

11:34 am - 6:42 pm

PIT

ONT

10h 08m

1 stop

$286American Airlines

Mon, Mar 2 - Wed, Mar 4

11:58 pm - 12:59 pm

ONT

PIT

10h 01m

2 stops

11:34 am - 6:42 pm

PIT

ONT

10h 08m

1 stop

$291American Airlines

Mon, Mar 2 - Wed, Mar 4

11:58 pm - 10:44 am

ONT

PIT

7h 46m

1 stop

3:13 pm - 10:30 pm

PIT

ONT

10h 17m

1 stop

$295American Airlines

Sun, Mar 8 - Wed, Mar 11

American Airlines flights from Ontario to Pittsburgh

Our best American Airlines deals on Ontario to Pittsburgh flight tickets

American Airlines

Mar 3

ONT11:58 pmOntario

10h 01m

2 stops

PIT12:59 pmPittsburgh

Mar 10

PIT2:10 pmPittsburgh

10h 57m

2 stops

ONT10:07 pmOntario

$267

American Airlines

Mar 4

ONT7:05 pmOntario

11h 07m

2 stops

PIT9:12 amPittsburgh

Mar 11

PIT5:10 pmPittsburgh

9h 49m

2 stops

ONT11:59 pmOntario

$283

American Airlines

Mar 2

ONT11:59 pmOntario

7h 23m

1 stop

PIT10:22 amPittsburgh

Mar 4

PIT11:34 amPittsburgh

10h 08m

1 stop

ONT6:42 pmOntario

$286

Southwest flights from Ontario to Pittsburgh

Our best Southwest deals on Ontario to Pittsburgh flight tickets

Southwest

May 2

ONT5:40 amOntario

6h 05m

1 stop

PIT2:45 pmPittsburgh

May 2

PIT4:00 pmPittsburgh

8h 20m

2 stops

ONT9:20 pmOntario

$374

Southwest

Apr 13

ONT11:55 pmOntario

8h 55m

2 stops

PIT11:50 amPittsburgh

Apr 21

PIT12:30 pmPittsburgh

9h 20m

2 stops

ONT6:50 pmOntario

$380

Southwest

Feb 18

ONT1:00 pmOntario

8h 10m

1 stop

PIT12:10 amPittsburgh

Feb 21

PIT3:25 pmPittsburgh

8h 30m

1 stop

ONT8:55 pmOntario

$557

Fly from

Fly to

Route

Depart

Return

Price

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

$221

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 3/4

1:45 pm-10:57 pm

1 stop6h 12m

Pittsburgh

Wed 3/11

8:45 am-5:41 pm

2 stops11h 56m

$242

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 5/2

7:00 am-4:55 pm

1 stop6h 55m

Pittsburgh

Wed 5/6

4:50 pm-9:58 pm

1 stop8h 08m

$257

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 5/2

6:00 am-3:52 pm

1 stop6h 52m

Pittsburgh

Wed 5/6

10:35 am-8:36 pm

2 stops13h 01m

$262

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 3/3

11:58 pm-12:59 pm

2 stops10h 01m

Pittsburgh

Tue 3/10

2:10 pm-10:07 pm

2 stops10h 57m

$267

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sun 3/8

11:59 pm-1:57 pm

2 stops10h 58m

Pittsburgh

Wed 3/11

5:48 pm-10:18 pm

1 stop7h 30m

$281

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 3/4

7:05 pm-9:12 am

2 stops11h 07m

Pittsburgh

Wed 3/11

5:10 pm-11:59 pm

2 stops9h 49m

$283

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 3/2

11:59 pm-10:22 am

1 stop7h 23m

Pittsburgh

Wed 3/4

11:34 am-6:42 pm

1 stop10h 08m

$286

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 3/2

11:58 pm-12:59 pm

2 stops10h 01m

Pittsburgh

Wed 3/4

11:34 am-6:42 pm

1 stop10h 08m

$291

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sun 3/8

11:58 pm-10:44 am

1 stop7h 46m

Pittsburgh

Wed 3/11

3:13 pm-10:30 pm

1 stop10h 17m

$295

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 $275. 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 $389. 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 $412 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 February 2026, prices for Ontario to Pittsburgh flights are approximately 75% 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 13m
Direct flights	None

The fastest flight from Ontario to Pittsburgh takes 6h 13m

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 13m.
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 February 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 25%, United Airlines with 13%, and Delta with 11%.

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 7.2 11,244 reviews	Search American Airlines flights
United Airlines	PriceFrom $286	Free Cancellation	Rating 7.4 9,242 reviews	Search United Airlines flights
Delta	PriceFrom $296	Free Cancellation	Rating 7.9 8,158 reviews	Search Delta flights
Southwest	PriceFrom $306	Free Cancellation	Rating 8.0 4,278 reviews	Search Southwest flights

Washington

Monroeville

Wheeling

Canonsburg

Butler

Triadelphia

New Castle

West Mifflin

Belle Vernon

Steubenville

Moon

Coraopolis

Wexford

Mars

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.