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Cheap flights from Pittsburgh to Los Angeles from $100

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.
Delta Logo
3:19 pm - 8:58 pmPIT  Pittsburgh-ONT Ontario
8h 39m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 4:39 pmONT  Ontario-PIT Pittsburgh
7h 39m1 stop Salt Lake City
$325Delta
Wed, Dec 9 - Wed, Dec 16
Delta Logo
6:00 am - 11:07 amPIT  Pittsburgh-ONT Ontario
8h 07m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:08 pm - 9:57 amONT  Ontario-PIT Pittsburgh
7h 49m1 stop Atlanta Hartsfield-Jackson
$325Delta
Sat, Dec 12 - Mon, Dec 14
American Airlines Logo
7:00 am - 12:39 pmPIT  Pittsburgh-ONT Ontario
8h 39m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
9:35 am - 11:00 pmONT  Ontario-PIT Pittsburgh
10h 25m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
$363American Airlines
Thu, Dec 10 - Tue, Dec 15
United Airlines Logo
5:00 pm - 9:59 pmPIT  Pittsburgh-ONT Ontario
7h 59m1 stop Houston George Bush Intcntl
United Airlines Logo
1:40 pm - 10:59 pmONT  Ontario-PIT Pittsburgh
6h 19m1 stop Denver Intl
$374United Airlines
Wed, Dec 9 - Sun, Dec 13
American Airlines Logo
7:25 pm - 11:59 pmPIT  Pittsburgh-ONT Ontario
7h 34m1 stop Dallas/Fort Worth
American Airlines Logo
12:45 pm - 10:36 pmONT  Ontario-PIT Pittsburgh
6h 51m1 stop Dallas/Fort Worth
$377American Airlines
Mon, Nov 23 - Tue, Dec 1
Southwest Logo
7:10 am - 11:35 amPIT  Pittsburgh-ONT Ontario
7h 25m1 stop Las Vegas Harry Reid Intl
Southwest Logo
2:55 pm - 12:20 amONT  Ontario-PIT Pittsburgh
6h 25m1 stop Phoenix Sky Harbor Intl
$377Southwest
Wed, Jan 6 - Wed, Jan 6
Southwest Logo
7:10 am - 11:35 amPIT  Pittsburgh-ONT Ontario
7h 25m1 stop Las Vegas Harry Reid Intl
Southwest Logo
2:55 pm - 12:20 amONT  Ontario-PIT Pittsburgh
6h 25m1 stop Phoenix Sky Harbor Intl
$377Southwest
Mon, Jan 25 - Mon, Feb 1
Alaska Airlines Logo
8:00 am - 4:05 pmPIT  Pittsburgh-ONT Ontario
11h 05m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 8:30 pmONT  Ontario-PIT Pittsburgh
11h 30m1 stop Seattle/Tacoma Intl
$377Alaska Airlines
Thu, Dec 10 - Mon, Dec 14
Alaska Airlines Logo
8:00 am - 4:05 pmPIT  Pittsburgh-ONT Ontario
11h 05m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 8:30 pmONT  Ontario-PIT Pittsburgh
11h 30m1 stop Seattle/Tacoma Intl
$377Alaska Airlines
Thu, Dec 10 - Mon, Dec 14
United Airlines Logo
5:00 pm - 9:59 pmPIT  Pittsburgh-ONT Ontario
7h 59m1 stop Houston George Bush Intcntl
United Airlines Logo
5:00 am - 4:57 pmONT  Ontario-PIT Pittsburgh
8h 57m2 stops Denver Intl Chicago O'Hare Intl
$380United Airlines
Wed, Dec 9 - Sun, Dec 13

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United Airlines flights from Pittsburgh to Ontario

Our best United Airlines deals on Pittsburgh to Ontario flight tickets
United Airlines
Dec 9
PIT5:00 pmPittsburgh
7h 59m
1 stop
ONT9:59 pmOntario
Dec 13
ONT1:40 pmOntario
6h 19m
1 stop
PIT10:59 pmPittsburgh
$374
United Airlines
Dec 9
PIT5:00 pmPittsburgh
7h 59m
1 stop
ONT9:59 pmOntario
Dec 13
ONT5:00 amOntario
8h 57m
2 stops
PIT4:57 pmPittsburgh
$380
United Airlines
Dec 14
PIT5:00 pmPittsburgh
7h 59m
1 stop
ONT9:59 pmOntario
Dec 20
ONT11:52 pmOntario
7h 00m
1 stop
PIT9:52 amPittsburgh
$407

Delta flights from Pittsburgh to Ontario

Our best Delta deals on Pittsburgh to Ontario flight tickets
Delta
Dec 8
PIT1:35 pmPittsburgh
10h 23m
1 stop
ONT8:58 pmOntario
Dec 14
ONT6:00 amOntario
7h 39m
1 stop
PIT4:39 pmPittsburgh
$325
Delta
Dec 11
PIT5:35 pmPittsburgh
9h 22m
1 stop
ONT11:57 pmOntario
Dec 14
ONT6:00 amOntario
7h 39m
1 stop
PIT4:39 pmPittsburgh
$345
Delta
Dec 3
PIT1:35 pmPittsburgh
8h 03m
1 stop
ONT6:38 pmOntario
Dec 7
ONT11:08 pmOntario
7h 49m
1 stop
PIT9:57 amPittsburgh
$377

momondo Fare Finder

 
Use the filters below to find and compare flights from Pittsburgh to Ontario that are best for you.

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Depart

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Price

Cheapest round-trip

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 12/9

3:19 pm-8:58 pm

1 stop8h 39m

Ontario

Wed 12/16

6:00 am-4:39 pm

1 stop7h 39m

$325

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Sat 12/12

6:00 am-11:07 am

1 stop8h 07m

Ontario

Mon 12/14

11:08 pm-9:57 am

1 stop7h 49m

$325

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 12/10

7:00 am-12:39 pm

1 stop8h 39m

Ontario

Tue 12/15

9:35 am-11:00 pm

2 stops10h 25m

$363

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 12/9

5:00 pm-9:59 pm

1 stop7h 59m

Ontario

Sun 12/13

1:40 pm-10:59 pm

1 stop6h 19m

$374

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Mon 11/23

7:25 pm-11:59 pm

1 stop7h 34m

Ontario

Tue 12/1

12:45 pm-10:36 pm

1 stop6h 51m

$377
Quickest round-trip

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 1/6

7:10 am-11:35 am

1 stop7h 25m

Ontario

Wed 1/6

2:55 pm-12:20 am

1 stop6h 25m

$377

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Mon 1/25

7:10 am-11:35 am

1 stop7h 25m

Ontario

Mon 2/1

2:55 pm-12:20 am

1 stop6h 25m

$377

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 12/10

8:00 am-4:05 pm

1 stop11h 05m

Ontario

Mon 12/14

6:00 am-8:30 pm

1 stop11h 30m

$377

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 12/10

8:00 am-4:05 pm

1 stop11h 05m

Ontario

Mon 12/14

6:00 am-8:30 pm

1 stop11h 30m

$377

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 12/9

5:00 pm-9:59 pm

1 stop7h 59m

Ontario

Sun 12/13

5:00 am-4:57 pm

2 stops8h 57m

$380

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?

Prices are currently low for flights on this route.

Typical prices usually range from $375 to $488.
The lowest price recently found on this route was $325.

What is the cheapest month to fly to Ontario?

In general, August 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 $390. If you aren’t able to travel during the month of August, then book flights to Ontario from Pittsburgh during March instead. Flights to Ontario in March, while not as cheap as those in August, still average around $393.

Can stopping save me money on Pittsburgh to Ontario flights?

No. A direct flight is the cheapest option for a flight between Pittsburgh to Ontario.

How have Pittsburgh to Ontario flight prices changed over time?

As of November 2026, prices for Pittsburgh to Ontario flights are approximately 6% cheaper when compared to flights at the same time last year.

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

Best Price Found

$100

Fastest flight time

6h 45m

Direct flights

None
The best one-way flight to Ontario from Pittsburgh in the past 72 hours is $100. The best round-trip flight deal from Pittsburgh to Ontario found on momondo in the last 72 hours is $325.
The fastest flight from Pittsburgh to Ontario takes 6h 45m
There are no direct flights from Pittsburgh to Ontario. There are no popular flight routes from Pittsburgh to Ontario.
Search flight deals

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 45m.

  • 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 $260Free CancellationRating
7.8
8,700 reviews
Search Delta flights
SouthwestPriceFrom $305Free CancellationRating
8.0
4,219 reviews
Search Southwest flights
American AirlinesPriceFrom $334Free CancellationRating
7.0
12,224 reviews
Search American Airlines flights
United AirlinesPriceFrom $357Free CancellationRating
7.3
10,460 reviews
Search United Airlines flights

  • United Airlines Flights From Pittsburgh to Ontario

    United Airlines flies from Pittsburgh to Ontario around 5 times per week, with 10,460 momondo users rating the airline 7.3/10. The cheapest United Airlines deal from Pittsburgh to Ontario in the last 72 hours was $357 (round-trip), much lower than the average airfare cost of $476 for United Airlines flights on this route.

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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