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

Phoenix (PHX) has the shortest average layover time for this route: 1h 13m.

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 42% 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.

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

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

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

Chicago (ORD) was the most common stop: 50% 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 Phoenix (PHX) offer the lowest average round-trip price of $390.

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

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 6h 40m.

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 September 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.

$156 Cheap Flights from Ontario to Pittsburgh in 2026/27

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.

6:00 am - 3:49 pmONT Ontario-PIT Pittsburgh

6h 49m1 stop Houston George Bush Intcntl

5:06 pm - 9:59 pmPIT Pittsburgh-ONT Ontario

7h 53m1 stop Houston George Bush Intcntl

$306United Airlines

Tue, Oct 20 - Sat, Oct 24

12:43 pm - 10:52 pmONT Ontario-PIT Pittsburgh

7h 09m1 stop Dallas/Fort Worth

7:09 am - 1:31 pmPIT Pittsburgh-ONT Ontario

9h 22m1 stop Dallas/Fort Worth

$310American Airlines

Sat, Oct 31 - Sat, Nov 7

6:00 am - 3:00 pmONT Ontario-PIT Pittsburgh

6h 00m1 stop Nashville Intl

9:35 am - 4:10 pmPIT Pittsburgh-ONT Ontario

9h 35m1 stop Phoenix Sky Harbor Intl

$311Southwest

Sat, Dec 5 - Tue, Dec 8

9:30 am - 7:45 pmONT Ontario-PIT Pittsburgh

7h 15m1 stop Phoenix Sky Harbor Intl

4:55 pm - 8:35 pmPIT Pittsburgh-ONT Ontario

6h 40m1 stop Las Vegas Harry Reid Intl

$311Southwest

Sat, Dec 5 - Tue, Dec 8

11:59 pm - 10:44 amONT Ontario-PIT Pittsburgh

7h 45m1 stop Dallas/Fort Worth

7:41 am - 1:30 pmPIT Pittsburgh-ONT Ontario

8h 49m1 stop Dallas/Fort Worth

$311American Airlines

Tue, Oct 13 - Tue, Oct 20

11:20 am - 11:59 pmONT Ontario-PIT Pittsburgh

9h 39m2 stops San Francisco Chicago O'Hare Intl

4:50 pm - 9:11 pmPIT Pittsburgh-ONT Ontario

7h 21m1 stop Denver Intl

$316United Airlines

Sat, Dec 5 - Tue, Dec 8

10:00 pm - 10:06 amONT Ontario-PIT Pittsburgh

9h 06m1 stop Atlanta Hartsfield-Jackson

5:46 pm - 11:55 pmPIT Pittsburgh-ONT Ontario

9h 09m1 stop Salt Lake City

$333Delta

Mon, Oct 5 - Wed, Oct 7

6:00 am - 4:38 pmONT Ontario-PIT Pittsburgh

7h 38m1 stop Salt Lake City

5:35 pm - 11:58 pmPIT Pittsburgh-ONT Ontario

9h 23m1 stop Salt Lake City

$333Delta

Sat, Dec 5 - Mon, Dec 7

12:02 pm - 8:36 pmONT Ontario-PIT Pittsburgh

29h 34m1 stop Seattle/Tacoma Intl

8:08 am - 3:13 pmPIT Pittsburgh-ONT Ontario

10h 05m1 stop Seattle/Tacoma Intl

$381Alaska Airlines

Tue, Nov 3 - Tue, Nov 10

6:56 pm - 8:35 pmONT Ontario-PIT Pittsburgh

22h 39m1 stop Seattle/Tacoma Intl

8:07 am - 6:00 pmPIT Pittsburgh-ONT Ontario

12h 53m1 stop Seattle/Tacoma Intl

$391Alaska Airlines

Mon, Oct 26 - Thu, Oct 29

Cheap last minute flights

Enter your travel dates to find the best prices.

11:45 am - 2:22 pmONT Ontario-PIT Pittsburgh

23h 37m3 stops Denver Intl Washington, D.C. Reagan-National DuBois Jefferson County

2:55 pm - 6:39 pmPIT Pittsburgh-ONT Ontario

30h 44m3 stops DuBois Jefferson County Washington, D.C. Dulles Intl Dallas/Fort Worth

$713Multiple Airlines

Fri, Sep 25 - Sun, Sep 27

12:17 pm - 12:31 amONT Ontario-PIT Pittsburgh

9h 14m1 stop Atlanta Hartsfield-Jackson

1:34 pm - 7:30 pmPIT Pittsburgh-ONT Ontario

8h 56m1 stop Atlanta Hartsfield-Jackson

$718Delta

Sat, Sep 26 - Sat, Oct 10

10:04 am - 5:07 pmONT Ontario-PIT Pittsburgh

28h 03m3 stops Las Vegas Harry Reid Intl Washington, D.C. Dulles Intl DuBois Jefferson County

5:20 pm - 11:47 pmPIT Pittsburgh-ONT Ontario

33h 27m3 stops Bradford Washington, D.C. Dulles Intl Denver Intl

$720Multiple Airlines

Sat, Sep 26 - Fri, Oct 2

5:00 am - 2:44 pmONT Ontario-PIT Pittsburgh

6h 44m1 stop Denver Intl

6:00 pm - 10:49 pmPIT Pittsburgh-ONT Ontario

7h 49m1 stop Chicago O'Hare Intl

$724United Airlines

Tue, Sep 22 - Sat, Oct 10

5:00 am - 7:08 pmONT Ontario-PIT Pittsburgh

11h 08m2 stops Denver Intl Chicago O'Hare Intl

6:00 pm - 10:49 pmPIT Pittsburgh-ONT Ontario

7h 49m1 stop Chicago O'Hare Intl

$729United Airlines

Tue, Sep 22 - Sat, Oct 10

6:15 am - 9:30 pmONT Ontario-PIT Pittsburgh

12h 15m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

5:00 am - 12:14 pmPIT Pittsburgh-ONT Ontario

10h 14m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

$789American Airlines

Tue, Sep 22 - Sat, Oct 10

7:05 am - 4:34 pmONT Ontario-PIT Pittsburgh

6h 29m1 stop Atlanta Hartsfield-Jackson

1:34 pm - 7:30 pmPIT Pittsburgh-ONT Ontario

8h 56m1 stop Atlanta Hartsfield-Jackson

$843Delta

Fri, Sep 25 - Sat, Oct 10

10:25 am - 10:59 pmONT Ontario-PIT Pittsburgh

9h 34m1 stop Dallas/Fort Worth

3:17 pm - 8:09 pmPIT Pittsburgh-ONT Ontario

7h 52m1 stop Dallas/Fort Worth

$856American Airlines

Wed, Sep 23 - Sat, Sep 26

11:55 pm - 10:10 amONT Ontario-PIT Pittsburgh

7h 15m1 stop Chicago Midway

2:00 pm - 7:40 pmPIT Pittsburgh-ONT Ontario

8h 40m1 stop Chicago Midway

$1,097Southwest

Fri, Sep 25 - Tue, Sep 29

8:30 am - 7:15 pmONT Ontario-PIT Pittsburgh

7h 45m2 stops Las Vegas Harry Reid Intl Denver Intl

2:00 pm - 9:00 pmPIT Pittsburgh-ONT Ontario

10h 00m2 stops Chicago Midway Phoenix Sky Harbor Intl

$1,107Southwest

Fri, Sep 25 - Tue, Sep 29

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Alaska Airlines flights from Ontario to Pittsburgh

Our best Alaska Airlines deals on Ontario to Pittsburgh flight tickets

Alaska Airlines

Oct 26

ONT6:56 pmOntario

22h 39m

1 stop

PIT8:35 pmPittsburgh

Oct 29

PIT8:07 amPittsburgh

12h 53m

1 stop

ONT6:00 pmOntario

$391

Alaska Airlines

Nov 16

ONT7:13 pmOntario

22h 23m

1 stop

PIT8:36 pmPittsburgh

Nov 18

PIT8:08 amPittsburgh

10h 05m

1 stop

ONT3:13 pmOntario

$411

Alaska Airlines

Oct 19

ONT6:56 pmOntario

22h 39m

1 stop

PIT8:35 pmPittsburgh

Oct 23

PIT8:07 amPittsburgh

12h 53m

1 stop

ONT6:00 pmOntario

$414

Southwest flights from Ontario to Pittsburgh

Our best Southwest deals on Ontario to Pittsburgh flight tickets

Southwest

Oct 13

ONT11:55 pmOntario

7h 20m

1 stop

PIT10:15 amPittsburgh

Oct 20

PIT6:00 amPittsburgh

9h 55m

2 stops

ONT12:55 pmOntario

$317

Southwest

Dec 4

ONT3:20 pmOntario

5h 55m

1 stop

PIT12:15 amPittsburgh

Dec 7

PIT5:50 amPittsburgh

9h 05m

2 stops

ONT11:55 amOntario

$398

Southwest

Dec 4

ONT8:40 amOntario

9h 00m

2 stops

PIT8:40 pmPittsburgh

Dec 7

PIT5:50 amPittsburgh

9h 05m

2 stops

ONT11:55 amOntario

$399

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Tue 10/20

6:00 am-3:49 pm

1 stop6h 49m

Pittsburgh

Sat 10/24

5:06 pm-9:59 pm

1 stop7h 53m

$306

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Sat 10/31

12:43 pm-10:52 pm

1 stop7h 09m

Pittsburgh

Sat 11/7

7:09 am-1:31 pm

1 stop9h 22m

$310

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Sat 12/5

6:00 am-3:00 pm

1 stop6h 00m

Pittsburgh

Tue 12/8

9:35 am-4:10 pm

1 stop9h 35m

$311

Quickest round-trip

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Sat 12/5

9:30 am-7:45 pm

1 stop7h 15m

Pittsburgh

Tue 12/8

4:55 pm-8:35 pm

1 stop6h 40m

$311

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Tue 10/13

11:59 pm-10:44 am

1 stop7h 45m

Pittsburgh

Tue 10/20

7:41 am-1:30 pm

1 stop8h 49m

$311

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Sat 12/5

11:20 am-11:59 pm

2 stops9h 39m

Pittsburgh

Tue 12/8

4:50 pm-9:11 pm

1 stop7h 21m

$316

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Mon 10/5

10:00 pm-10:06 am

1 stop9h 06m

Pittsburgh

Wed 10/7

5:46 pm-11:55 pm

1 stop9h 09m

$333

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Sat 12/5

6:00 am-4:38 pm

1 stop7h 38m

Pittsburgh

Mon 12/7

5:35 pm-11:58 pm

1 stop9h 23m

$333

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Tue 11/3

12:02 pm-8:36 pm

1 stop29h 34m

Pittsburgh

Tue 11/10

8:08 am-3:13 pm

1 stop10h 05m

$381

OntarioPittsburgh

ONT Ontario - PIT Pittsburgh

ONTPIT

Ontario

Mon 10/26

6:56 pm-8:35 pm

1 stop22h 39m

Pittsburgh

Thu 10/29

8:07 am-6:00 pm

1 stop12h 53m

$391

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 $414 to $568.
The lowest price recently found on this route was $306.

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 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 Tuesday when prices can be found for as low as $345. 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 $511. 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 September 2026, prices for Ontario to Pittsburgh flights are approximately 100% 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

Best Price Found	$156
Fastest flight time	6h 20m
Direct flights	None

The best one-way flight to Pittsburgh from Ontario in the past 72 hours is $156. The best round-trip flight deal from Ontario to Pittsburgh found on momondo in the last 72 hours is $306.

The fastest flight from Ontario to Pittsburgh takes 6h 20m

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 20m.
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 September 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 47% of the total bookings. Other popular airlines include United Airlines with 22%, American Airlines with 19%, 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 7.0 12,077 reviews	Search American Airlines flights
United Airlines	PriceFrom $310	Free Cancellation	Rating 7.4 10,227 reviews	Search United Airlines flights
Delta	PriceFrom $316	Free Cancellation	Rating 7.8 8,592 reviews	Search Delta flights
Southwest	PriceFrom $340	Free Cancellation	Rating 8.0 4,193 reviews	Search Southwest flights

Washington

Monroeville

Wheeling

Butler

Canonsburg

New Castle

West Mifflin

Belle Vernon

Moon

Triadelphia

Coraopolis

Steubenville

Mars

Bridgeport

Cadiz

Chester

Wexford

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.