What airlines fly to Pittsburgh?

American Airlines, United Airlines and Southwest 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 49% of people opting to fly with this airline when traveling to Pittsburgh. Keep in mind that there are 6 different airlines that fly to Pittsburgh on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Ontario to Pittsburgh?

Flights connecting via Chicago (MDW) have the shortest average one-way travel time: 7h 05m.

Which airport is the most popular layover for flights between Ontario and Pittsburgh?

Chicago (ORD) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Ontario to Pittsburgh?

Flights via Chicago (MDW) offer the lowest average round-trip price of $391.

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

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

Which layover airport has the shortest connection time from Ontario to Pittsburgh?

Chicago (ORD) has the shortest average layover time for this route: 1h 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 July 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.

$139 Cheap Flights from Ontario to Pittsburgh in 2026

Discover deals from 900+ travel sites with momondo.

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.

3:14 pm - 5:25 am

ONT

PIT

11h 11m

1 stop

6:28 pm - 11:16 am

PIT

ONT

19h 48m

1 stop

$355Alaska Airlines

Thu, Sep 17 - Sat, Sep 19

10:05 am - 8:35 pm

ONT

PIT

7h 30m

2 stops

6:25 pm - 10:40 pm

PIT

ONT

7h 15m

1 stop

$360Southwest

Tue, Nov 10 - Thu, Nov 12

12:00 pm - 12:36 am

ONT

PIT

9h 36m

1 stop

5:39 pm - 10:23 pm

PIT

ONT

7h 44m

1 stop

$365Delta

Tue, Aug 11 - Sat, Aug 29

5:15 am - 8:15 pm

ONT

PIT

12h 00m

2 stops

2:05 pm - 7:20 pm

PIT

ONT

8h 15m

1 stop

$366Southwest

Mon, Sep 14 - Thu, Sep 17

6:02 am - 5:25 pm

ONT

PIT

8h 23m

1 stop

7:02 am - 2:16 pm

PIT

ONT

10h 14m

1 stop

$368Alaska Airlines

Wed, Sep 2 - Wed, Sep 9

11:55 pm - 11:05 am

ONT

PIT

8h 10m

1 stop

5:40 am - 11:25 am

PIT

ONT

8h 45m

2 stops

$373Southwest

Sat, Sep 26 - Thu, Oct 1

10:29 am - 9:16 pm

ONT

PIT

7h 47m

1 stop

6:00 am - 11:43 am

PIT

ONT

8h 43m

1 stop

$378American Airlines

Thu, Aug 13 - Thu, Aug 20

12:59 pm - 10:27 pm

ONT

PIT

6h 28m

1 stop

6:09 am - 1:31 pm

PIT

ONT

10h 22m

2 stops

$380American Airlines

Mon, Aug 24 - Wed, Sep 2

12:33 pm - 10:48 pm

ONT

PIT

7h 15m

1 stop

7:04 am - 11:43 am

PIT

ONT

7h 39m

1 stop

$381American Airlines

Tue, Aug 11 - Sat, Aug 29

12:30 pm - 10:20 pm

ONT

PIT

6h 50m

1 stop

2:45 pm - 8:40 pm

PIT

ONT

8h 55m

2 stops

$383Southwest

Wed, Aug 19 - Thu, Aug 20

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

American Airlines flights from Ontario to Pittsburgh

Our best American Airlines deals on Ontario to Pittsburgh flight tickets

American Airlines

Aug 27

ONT12:33 pmOntario

7h 15m

1 stop

PIT10:48 pmPittsburgh

Sep 3

PIT7:46 amPittsburgh

7h 17m

1 stop

ONT12:03 pmOntario

$355

American Airlines

Aug 13

ONT10:29 amOntario

7h 47m

1 stop

PIT9:16 pmPittsburgh

Aug 20

PIT6:00 amPittsburgh

8h 43m

1 stop

ONT11:43 amOntario

$378

American Airlines

Aug 24

ONT12:59 pmOntario

6h 28m

1 stop

PIT10:27 pmPittsburgh

Sep 2

PIT6:09 amPittsburgh

10h 22m

2 stops

ONT1:31 pmOntario

$380

Alaska Airlines flights from Ontario to Pittsburgh

Our best Alaska Airlines deals on Ontario to Pittsburgh flight tickets

Alaska Airlines

Sep 10

ONT7:59 pmOntario

18h 31m

1 stop

PIT5:30 pmPittsburgh

Sep 14

PIT6:28 pmPittsburgh

19h 48m

1 stop

ONT11:16 amOntario

$368

Alaska Airlines

Oct 22

ONT11:13 amOntario

30h 22m

1 stop

PIT8:35 pmPittsburgh

Oct 26

PIT8:07 amPittsburgh

12h 53m

1 stop

ONT6:00 pmOntario

$410

Alaska Airlines

Sep 1

ONT12:00 pmOntario

14h 24m

1 stop

PIT5:24 amPittsburgh

Sep 20

PIT6:28 pmPittsburgh

19h 48m

1 stop

ONT11:16 amOntario

$416

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Thu 9/17

3:14 pm-5:25 am

1 stop11h 11m

Pittsburgh

Sat 9/19

6:28 pm-11:16 am

1 stop19h 48m

$355

Quickest round-trip

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 11/10

10:05 am-8:35 pm

2 stops7h 30m

Pittsburgh

Thu 11/12

6:25 pm-10:40 pm

1 stop7h 15m

$360

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 8/11

12:00 pm-12:36 am

1 stop9h 36m

Pittsburgh

Sat 8/29

5:39 pm-10:23 pm

1 stop7h 44m

$365

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 9/14

5:15 am-8:15 pm

2 stops12h 00m

Pittsburgh

Thu 9/17

2:05 pm-7:20 pm

1 stop8h 15m

$366

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 9/2

6:02 am-5:25 pm

1 stop8h 23m

Pittsburgh

Wed 9/9

7:02 am-2:16 pm

1 stop10h 14m

$368

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Sat 9/26

11:55 pm-11:05 am

1 stop8h 10m

Pittsburgh

Thu 10/1

5:40 am-11:25 am

2 stops8h 45m

$373

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Thu 8/13

10:29 am-9:16 pm

1 stop7h 47m

Pittsburgh

Thu 8/20

6:00 am-11:43 am

1 stop8h 43m

$378

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Mon 8/24

12:59 pm-10:27 pm

1 stop6h 28m

Pittsburgh

Wed 9/2

6:09 am-1:31 pm

2 stops10h 22m

$380

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Tue 8/11

12:33 pm-10:48 pm

1 stop7h 15m

Pittsburgh

Sat 8/29

7:04 am-11:43 am

1 stop7h 39m

$381

OntarioPittsburgh

ONT - PIT

ONTPIT

Ontario

Wed 8/19

12:30 pm-10:20 pm

1 stop6h 50m

Pittsburgh

Thu 8/20

2:45 pm-8:40 pm

2 stops8h 55m

$383

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

Layovers

What is the typical price of a round-trip flight between Ontario and Pittsburgh?

Prices are currently low for flights on this route.

Typical prices usually range from $442 to $685.
The lowest price recently found on this route was $355.

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.

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 Tuesday when prices can be found for as low as $330. 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 $493. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

How have Ontario to Pittsburgh flight prices changed over time?

As of July 2026, prices for Ontario to Pittsburgh flights are approximately 177% 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 25m
Direct flights	None

The fastest flight from Ontario to Pittsburgh takes 6h 25m

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

Search flight deals

Frequently asked questions about flying from Ontario to Pittsburgh

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 25m.
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 July 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 19%, United Airlines with 19%, 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 7.1 11,842 reviews	Search American Airlines flights
Delta	PriceFrom $296	Free Cancellation	Rating 7.8 8,481 reviews	Search Delta flights
United Airlines	PriceFrom $310	Free Cancellation	Rating 7.4 10,026 reviews	Search United Airlines flights
Southwest	PriceFrom $311	Free Cancellation	Rating 8.0 4,236 reviews	Search Southwest flights

Washington

Monroeville

Wheeling

Canonsburg

Butler

Triadelphia

New Castle

West Mifflin

Moon

Coraopolis

Belle Vernon

Steubenville

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.