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Cheap flights from Pittsburgh to Los Angeles from $153

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 8/18. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Pittsburgh to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:43 am - 12:05 pm
PIT
-
ONT
7h 22m
1 stop
American Airlines Logo
10:22 am - 10:07 pm
ONT
-
PIT
8h 45m
1 stop
$305American Airlines
Wed, May 27 - Tue, Jun 2
American Airlines Logo
3:30 pm - 10:36 pm
PIT
-
ONT
10h 06m
1 stop
American Airlines Logo
7:12 pm - 8:54 am
ONT
-
PIT
10h 42m
2 stops
$310American Airlines
Wed, May 27 - Tue, Jun 2
American Airlines Logo
5:00 am - 12:05 pm
PIT
-
ONT
10h 05m
2 stops
American Airlines Logo
7:12 pm - 8:54 am
ONT
-
PIT
10h 42m
2 stops
$315American Airlines
Wed, May 27 - Tue, Jun 2
Delta Logo
6:46 am - 10:57 am
PIT
-
ONT
7h 11m
1 stop
Delta Logo
6:00 am - 4:40 pm
ONT
-
PIT
7h 40m
1 stop
$335Delta
Tue, May 12 - Wed, May 20
Alaska Airlines Logo
7:00 am - 2:18 pm
PIT
-
ONT
10h 18m
1 stop
Alaska Airlines Logo
3:12 pm - 5:25 am
ONT
-
PIT
11h 13m
1 stop
$337Alaska Airlines
Sat, Sep 19 - Wed, Sep 23
Delta Logo
5:10 pm - 11:34 pm
PIT
-
ONT
9h 24m
2 stops
Delta Logo
6:00 am - 4:40 pm
ONT
-
PIT
7h 40m
1 stop
$340Delta
Tue, May 19 - Wed, May 20
Delta Logo
11:09 am - 9:48 pm
PIT
-
ONT
13h 39m
2 stops
Delta Logo
9:50 am - 12:45 am
ONT
-
PIT
11h 55m
2 stops
$345Delta
Tue, May 19 - Wed, May 20
United Airlines Logo
4:50 pm - 9:58 pm
PIT
-
ONT
8h 08m
1 stop
United Airlines Logo
5:45 am - 3:56 pm
ONT
-
PIT
7h 11m
1 stop
$346United Airlines
Sat, May 16 - Wed, May 27
Delta Logo
5:40 pm - 10:45 pm
PIT
-
ONT
8h 05m
1 stop
Delta Logo
5:50 pm - 11:13 am
ONT
-
PIT
14h 23m
2 stops
$351Delta
Sat, May 16 - Wed, May 27
American Airlines Logo
8:18 am - 4:22 pm
PIT
-
ONT
11h 04m
2 stops
American Airlines Logo
9:24 am - 11:17 pm
ONT
-
PIT
10h 53m
2 stops
$352American Airlines
Tue, May 19 - Wed, May 20

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American Airlines flights from Pittsburgh to Ontario

Our best American Airlines deals on Pittsburgh to Ontario flight tickets
American Airlines
May 27
PIT7:43 amPittsburgh
7h 22m
1 stop
ONT12:05 pmOntario
Jun 2
ONT10:22 amOntario
8h 45m
1 stop
PIT10:07 pmPittsburgh
$305
American Airlines
May 27
PIT3:30 pmPittsburgh
10h 06m
1 stop
ONT10:36 pmOntario
Jun 2
ONT7:12 pmOntario
10h 42m
2 stops
PIT8:54 amPittsburgh
$310
American Airlines
May 27
PIT5:00 amPittsburgh
10h 05m
2 stops
ONT12:05 pmOntario
Jun 2
ONT7:12 pmOntario
10h 42m
2 stops
PIT8:54 amPittsburgh
$315

United Airlines flights from Pittsburgh to Ontario

Our best United Airlines deals on Pittsburgh to Ontario flight tickets
United Airlines
May 16
PIT4:50 pmPittsburgh
8h 08m
1 stop
ONT9:58 pmOntario
May 27
ONT5:45 amOntario
7h 11m
1 stop
PIT3:56 pmPittsburgh
$346
United Airlines
May 27
PIT4:25 pmPittsburgh
7h 17m
1 stop
ONT8:42 pmOntario
Jun 3
ONT6:30 amOntario
7h 35m
1 stop
PIT5:05 pmPittsburgh
$415
United Airlines
Aug 10
PIT6:50 amPittsburgh
8h 22m
1 stop
ONT12:12 pmOntario
Aug 22
ONT1:18 pmOntario
6h 22m
1 stop
PIT10:40 pmPittsburgh
$423

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 April 25, 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

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 5/27

7:43 am-12:05 pm

1 stop7h 22m

Ontario

Tue 6/2

10:22 am-10:07 pm

1 stop8h 45m

$305

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 5/27

3:30 pm-10:36 pm

1 stop10h 06m

Ontario

Tue 6/2

7:12 pm-8:54 am

2 stops10h 42m

$310

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 5/27

5:00 am-12:05 pm

2 stops10h 05m

Ontario

Tue 6/2

7:12 pm-8:54 am

2 stops10h 42m

$315
Quickest round-trip

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 5/12

6:46 am-10:57 am

1 stop7h 11m

Ontario

Wed 5/20

6:00 am-4:40 pm

1 stop7h 40m

$335

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Sat 9/19

7:00 am-2:18 pm

1 stop10h 18m

Ontario

Wed 9/23

3:12 pm-5:25 am

1 stop11h 13m

$337

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 5/19

5:10 pm-11:34 pm

2 stops9h 24m

Ontario

Wed 5/20

6:00 am-4:40 pm

1 stop7h 40m

$340

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 5/19

11:09 am-9:48 pm

2 stops13h 39m

Ontario

Wed 5/20

9:50 am-12:45 am

2 stops11h 55m

$345

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Sat 5/16

4:50 pm-9:58 pm

1 stop8h 08m

Ontario

Wed 5/27

5:45 am-3:56 pm

1 stop7h 11m

$346

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Sat 5/16

5:40 pm-10:45 pm

1 stop8h 05m

Ontario

Wed 5/27

5:50 pm-11:13 am

2 stops14h 23m

$351

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 5/19

8:18 am-4:22 pm

2 stops11h 04m

Ontario

Wed 5/20

9:24 am-11:17 pm

2 stops10h 53m

$352

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

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 00m

Direct flights

None
The fastest flight from Pittsburgh to Ontario takes 7h 00m
There are no direct flights from Pittsburgh to Ontario. There are no popular flight routes from Pittsburgh to Ontario.
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Frequently asked questions about flying from Pittsburgh to Ontario

  • 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 00m.

  • 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
American AirlinesPriceFrom $286Free CancellationRating
7.1
11,672 reviews
Search American Airlines flights
United AirlinesPriceFrom $296Free CancellationRating
7.4
9,650 reviews
Search United Airlines flights
DeltaPriceFrom $296Free CancellationRating
7.9
8,458 reviews
Search Delta flights
SouthwestPriceFrom $350Free CancellationRating
8.0
4,333 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.

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