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Cheap flights from Pittsburgh to Los Angeles from $159

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pittsburgh to Los Angeles departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Pittsburgh to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:05 am - 11:36 am
PIT
-
ONT
7h 31m
1 stop
Delta Logo
10:15 pm - 9:15 am
ONT
-
PIT
8h 00m
1 stop
$317Delta
Tue, Apr 14 - Tue, Apr 14
Delta Logo
5:40 pm - 11:34 pm
PIT
-
ONT
8h 54m
1 stop
Delta Logo
6:00 am - 6:49 pm
ONT
-
PIT
9h 49m
2 stops
$322Delta
Tue, May 19 - Wed, May 20
Delta Logo
5:30 pm - 11:51 pm
PIT
-
ONT
9h 21m
1 stop
Delta Logo
10:15 pm - 10:44 am
ONT
-
PIT
9h 29m
1 stop
$326Delta
Thu, Apr 9 - Tue, Apr 14
Southwest Logo
6:05 am - 11:55 am
PIT
-
ONT
8h 50m
2 stops
Southwest Logo
9:45 pm - 10:00 am
ONT
-
PIT
9h 15m
2 stops
$327Southwest
Wed, Apr 22 - Wed, Apr 29
Delta Logo
5:30 pm - 11:51 pm
PIT
-
ONT
9h 21m
1 stop
Delta Logo
5:55 pm - 9:39 am
ONT
-
PIT
12h 44m
2 stops
$331Delta
Thu, Apr 9 - Tue, Apr 14
American Airlines Logo
2:53 pm - 8:27 pm
PIT
-
ONT
8h 34m
1 stop
American Airlines Logo
11:59 pm - 10:49 am
ONT
-
PIT
7h 50m
1 stop
$333American Airlines
Tue, May 19 - Wed, May 20
Delta Logo
5:23 pm - 11:51 pm
PIT
-
ONT
9h 28m
1 stop
Delta Logo
12:57 pm - 12:17 am
ONT
-
PIT
8h 20m
1 stop
$335Delta
Thu, Apr 2 - Thu, Apr 9
Delta Logo
5:23 pm - 11:51 pm
PIT
-
ONT
9h 28m
1 stop
Delta Logo
10:25 pm - 10:47 am
ONT
-
PIT
9h 22m
1 stop
$337Delta
Tue, Mar 31 - Tue, Apr 7
Delta Logo
5:40 pm - 11:34 pm
PIT
-
ONT
8h 54m
1 stop
Delta Logo
6:45 am - 11:50 pm
ONT
-
PIT
14h 05m
2 stops
$342Delta
Tue, May 19 - Wed, May 20
Alaska Airlines Logo
7:24 pm - 9:39 am
PIT
-
ONT
17h 15m
1 stop
Alaska Airlines Logo
7:08 pm - 6:28 pm
ONT
-
PIT
20h 20m
1 stop
$345Alaska Airlines
Mon, Mar 30 - Tue, Mar 31

Southwest flights from Pittsburgh to Ontario

Our best Southwest deals on Pittsburgh to Ontario flight tickets
Southwest
Apr 22
PIT6:05 amPittsburgh
8h 50m
2 stops
ONT11:55 amOntario
Apr 29
ONT9:45 pmOntario
9h 15m
2 stops
PIT10:00 amPittsburgh
$327
Southwest
Jun 10
PIT5:30 pmPittsburgh
8h 25m
1 stop
ONT10:55 pmOntario
Jul 10
ONT9:40 amOntario
6h 55m
1 stop
PIT7:35 pmPittsburgh
$396
Southwest
Jun 10
PIT5:30 pmPittsburgh
8h 25m
1 stop
ONT10:55 pmOntario
Jul 10
ONT8:35 amOntario
9h 00m
2 stops
PIT8:35 pmPittsburgh
$411

Alaska Airlines flights from Pittsburgh to Ontario

Our best Alaska Airlines deals on Pittsburgh to Ontario flight tickets
Alaska Airlines
Mar 30
PIT7:24 pmPittsburgh
17h 15m
1 stop
ONT9:39 amOntario
Mar 31
ONT7:08 pmOntario
20h 20m
1 stop
PIT6:28 pmPittsburgh
$345
Alaska Airlines
Apr 30
PIT7:17 pmPittsburgh
17h 28m
1 stop
ONT9:45 amOntario
May 4
ONT6:00 amOntario
9h 21m
1 stop
PIT6:21 pmPittsburgh
$357
Alaska Airlines
Apr 21
PIT7:24 pmPittsburgh
17h 21m
1 stop
ONT9:45 amOntario
Apr 29
ONT6:00 amOntario
9h 21m
1 stop
PIT6:21 pmPittsburgh
$383

momondo Fare Finder

 
Customize your flight search to find flights from Pittsburgh to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 13, 2026.
Use the filters below to find and compare flights from Pittsburgh to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 4/14

7:05 am-11:36 am

1 stop7h 31m

Ontario

Tue 4/14

10:15 pm-9:15 am

1 stop8h 00m

$317

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 5/19

5:40 pm-11:34 pm

1 stop8h 54m

Ontario

Wed 5/20

6:00 am-6:49 pm

2 stops9h 49m

$322

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 4/9

5:30 pm-11:51 pm

1 stop9h 21m

Ontario

Tue 4/14

10:15 pm-10:44 am

1 stop9h 29m

$326

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 4/22

6:05 am-11:55 am

2 stops8h 50m

Ontario

Wed 4/29

9:45 pm-10:00 am

2 stops9h 15m

$327

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 4/9

5:30 pm-11:51 pm

1 stop9h 21m

Ontario

Tue 4/14

5:55 pm-9:39 am

2 stops12h 44m

$331

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 5/19

2:53 pm-8:27 pm

1 stop8h 34m

Ontario

Wed 5/20

11:59 pm-10:49 am

1 stop7h 50m

$333

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 4/2

5:23 pm-11:51 pm

1 stop9h 28m

Ontario

Thu 4/9

12:57 pm-12:17 am

1 stop8h 20m

$335

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 3/31

5:23 pm-11:51 pm

1 stop9h 28m

Ontario

Tue 4/7

10:25 pm-10:47 am

1 stop9h 22m

$337

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 5/19

5:40 pm-11:34 pm

1 stop8h 54m

Ontario

Wed 5/20

6:45 am-11:50 pm

2 stops14h 05m

$342

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Mon 3/30

7:24 pm-9:39 am

1 stop17h 15m

Ontario

Tue 3/31

7:08 pm-6:28 pm

1 stop20h 20m

$345

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Pittsburgh to Ontario

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

What is the cheapest month to fly to Ontario?

In general, December is the cheapest month to fly from Pittsburgh to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $350. If you aren’t able to travel during the month of December, then book flights to Ontario from Pittsburgh during February instead. Flights to Ontario in February, while not as cheap as those in December, still average around $357.

How have Pittsburgh to Ontario flight prices changed over time?

When to book flights from Pittsburgh to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Pittsburgh to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Pittsburgh to Ontario (PIT to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pittsburgh to Ontario

Fastest flight time

7h 09m

Direct flights

None
The fastest flight from Pittsburgh to Ontario takes 7h 09m
There are no direct flights from Pittsburgh to Ontario. There are no popular flight routes from Pittsburgh to Ontario.
Search flight deals

  • How far is Pittsburgh to Ontario by plane?

    Pittsburgh and Ontario are 2099.2 mi apart from one another. In terms of flight time, this usually takes a little over 7h 09m.

  • When did momondo last update prices for flights from Pittsburgh Airport to Ontario Airport?

    Prices for flights from Pittsburgh Airport to Ontario Airport refresh daily.

  • How many operators does momondo search for flights from Pittsburgh Airport to Ontario Airport?

  • How old do you have to be to fly from Pittsburgh Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pittsburgh Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The travel and health documents you'll need for your trip to Ontario 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 Ontario 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 Pittsburgh to Ontario?

Best airlines flying from Pittsburgh to Ontario

Compare and see reviews for airlines that fly from Pittsburgh to Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $296Free CancellationRating
7.4
9,418 reviews
Search United Airlines flights
DeltaPriceFrom $296Free CancellationRating
7.9
8,285 reviews
Search Delta flights
American AirlinesPriceFrom $306Free CancellationRating
7.1
11,446 reviews
Search American Airlines flights
SouthwestPriceFrom $330Free CancellationRating
8.0
4,318 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Pittsburgh to Ontario?

Finding the right flight to Ontario from Pittsburgh is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

Can I find flights from Pittsburgh to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Pittsburgh on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Pittsburgh to Ontario?

momondo helps you find the best flight between Pittsburgh and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Pittsburgh to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Pittsburgh to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Ontario trip

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