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Cheap flights from Pittsburgh to Los Angeles from $174

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 8/8. 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

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.
Southwest Logo
6:35 pm - 10:10 pm
PIT
-
ONT
6h 35m
1 stop
Southwest Logo
11:55 pm - 11:20 am
ONT
-
PIT
8h 25m
1 stop
$306Southwest
Thu, Aug 13 - Mon, Aug 17
Southwest Logo
2:45 pm - 8:40 pm
PIT
-
ONT
8h 55m
2 stops
Southwest Logo
11:55 pm - 11:20 am
ONT
-
PIT
8h 25m
1 stop
$312Southwest
Thu, Aug 13 - Mon, Aug 17
Delta Logo
5:50 am - 10:42 am
PIT
-
ONT
7h 52m
1 stop
Delta Logo
10:00 pm - 10:00 am
ONT
-
PIT
9h 00m
1 stop
$347Delta
Sun, Aug 23 - Sun, Aug 30
Delta Logo
5:50 am - 10:42 am
PIT
-
ONT
7h 52m
1 stop
Delta Logo
10:00 pm - 10:00 am
ONT
-
PIT
9h 00m
1 stop
$348Delta
Sun, Aug 23 - Sun, Aug 30
Delta Logo
5:50 am - 10:42 am
PIT
-
ONT
7h 52m
1 stop
Delta Logo
10:00 pm - 10:00 am
ONT
-
PIT
9h 00m
1 stop
$349Delta
Sun, Aug 23 - Sun, Aug 30
Alaska Airlines Logo
7:02 am - 2:09 pm
PIT
-
ONT
10h 07m
1 stop
Alaska Airlines Logo
3:07 pm - 5:24 am
ONT
-
PIT
11h 17m
1 stop
$364Alaska Airlines
Tue, Aug 25 - Wed, Aug 26
American Airlines Logo
6:00 am - 11:43 am
PIT
-
ONT
8h 43m
1 stop
American Airlines Logo
10:29 am - 10:48 pm
ONT
-
PIT
9h 19m
1 stop
$368American Airlines
Thu, Aug 6 - Wed, Aug 26
Delta Logo
5:50 am - 10:42 am
PIT
-
ONT
7h 52m
1 stop
Delta Logo
12:00 pm - 11:37 am
ONT
-
PIT
20h 37m
2 stops
$371Delta
Tue, Aug 4 - Tue, Aug 11
Delta Logo
5:50 am - 10:42 am
PIT
-
ONT
7h 52m
1 stop
Delta Logo
12:00 pm - 11:37 am
ONT
-
PIT
20h 37m
2 stops
$379Delta
Tue, Aug 4 - Wed, Aug 12
Alaska Airlines Logo
7:02 am - 2:10 pm
PIT
-
ONT
10h 08m
1 stop
Alaska Airlines Logo
3:07 pm - 5:24 am
ONT
-
PIT
11h 17m
1 stop
$381Alaska Airlines
Thu, Aug 20 - Mon, Aug 24

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Delta flights from Pittsburgh to Ontario

Our best Delta deals on Pittsburgh to Ontario flight tickets
Delta
Aug 23
PIT5:50 amPittsburgh
7h 52m
1 stop
ONT10:42 amOntario
Aug 30
ONT10:00 pmOntario
9h 00m
1 stop
PIT10:00 amPittsburgh
$347
Delta
Aug 23
PIT5:50 amPittsburgh
7h 52m
1 stop
ONT10:42 amOntario
Aug 30
ONT10:00 pmOntario
9h 00m
1 stop
PIT10:00 amPittsburgh
$348
Delta
Aug 23
PIT5:50 amPittsburgh
7h 52m
1 stop
ONT10:42 amOntario
Aug 30
ONT10:00 pmOntario
9h 00m
1 stop
PIT10:00 amPittsburgh
$349

American Airlines flights from Pittsburgh to Ontario

Our best American Airlines deals on Pittsburgh to Ontario flight tickets
American Airlines
Aug 6
PIT6:00 amPittsburgh
8h 43m
1 stop
ONT11:43 amOntario
Aug 26
ONT10:29 amOntario
9h 19m
1 stop
PIT10:48 pmPittsburgh
$368
American Airlines
Sep 22
PIT6:00 amPittsburgh
9h 06m
2 stops
ONT12:06 pmOntario
Sep 27
ONT1:04 pmOntario
6h 28m
1 stop
PIT10:32 pmPittsburgh
$408
American Airlines
Sep 22
PIT11:00 amPittsburgh
10h 53m
2 stops
ONT6:53 pmOntario
Sep 27
ONT1:04 pmOntario
6h 28m
1 stop
PIT10:32 pmPittsburgh
$409

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 July 7, 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

Thu 8/13

6:35 pm-10:10 pm

1 stop6h 35m

Ontario

Mon 8/17

11:55 pm-11:20 am

1 stop8h 25m

$306

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 8/13

2:45 pm-8:40 pm

2 stops8h 55m

Ontario

Mon 8/17

11:55 pm-11:20 am

1 stop8h 25m

$312

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Sun 8/23

5:50 am-10:42 am

1 stop7h 52m

Ontario

Sun 8/30

10:00 pm-10:00 am

1 stop9h 00m

$347

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Sun 8/23

5:50 am-10:42 am

1 stop7h 52m

Ontario

Sun 8/30

10:00 pm-10:00 am

1 stop9h 00m

$348

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Sun 8/23

5:50 am-10:42 am

1 stop7h 52m

Ontario

Sun 8/30

10:00 pm-10:00 am

1 stop9h 00m

$349

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 8/25

7:02 am-2:09 pm

1 stop10h 07m

Ontario

Wed 8/26

3:07 pm-5:24 am

1 stop11h 17m

$364

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 8/6

6:00 am-11:43 am

1 stop8h 43m

Ontario

Wed 8/26

10:29 am-10:48 pm

1 stop9h 19m

$368

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 8/4

5:50 am-10:42 am

1 stop7h 52m

Ontario

Tue 8/11

12:00 pm-11:37 am

2 stops20h 37m

$371

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 8/4

5:50 am-10:42 am

1 stop7h 52m

Ontario

Wed 8/12

12:00 pm-11:37 am

2 stops20h 37m

$379

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 8/20

7:02 am-2:10 pm

1 stop10h 08m

Ontario

Mon 8/24

3:07 pm-5:24 am

1 stop11h 17m

$381

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, September 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 $305. If you aren’t able to travel during the month of September, then book flights to Ontario from Pittsburgh during December instead. Flights to Ontario in December, while not as cheap as those in September, still average around $350.

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

6h 35m

Direct flights

None
The fastest flight from Pittsburgh to Ontario takes 6h 35m
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 6h 35m.

  • 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
DeltaPriceFrom $296Free CancellationRating
7.8
8,450 reviews
Search Delta flights
United AirlinesPriceFrom $303Free CancellationRating
7.4
9,944 reviews
Search United Airlines flights
SouthwestPriceFrom $305Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
American AirlinesPriceFrom $314Free CancellationRating
7.1
11,782 reviews
Search American Airlines 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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