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Cheap flights from Pittsburgh to Los Angeles from $158

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.
American Airlines Logo
3:40 pm - 9:11 pmPIT  Pittsburgh-ONT Ontario
8h 31m1 stop Dallas/Fort Worth
American Airlines Logo
10:30 am - 10:38 pmONT  Ontario-PIT Pittsburgh
9h 08m1 stop Dallas/Fort Worth
$376American Airlines
Sat, Oct 31 - Sat, Nov 7
American Airlines Logo
3:34 pm - 10:57 pmPIT  Pittsburgh-ONT Ontario
10h 23m1 stop Dallas/Fort Worth
American Airlines Logo
1:23 pm - 10:46 pmONT  Ontario-PIT Pittsburgh
6h 23m1 stop Phoenix Sky Harbor Intl
$377American Airlines
Tue, Nov 3 - Wed, Nov 11
Southwest Logo
2:00 pm - 6:10 pmPIT  Pittsburgh-ONT Ontario
7h 10m1 stop Chicago Midway
Southwest Logo
2:45 pm - 11:30 pmONT  Ontario-PIT Pittsburgh
5h 45m1 stop Denver Intl
$377Southwest
Thu, Jan 14 - Thu, Feb 18
Southwest Logo
7:20 pm - 11:55 pmPIT  Pittsburgh-ONT Ontario
7h 35m1 stop Las Vegas Harry Reid Intl
Southwest Logo
11:55 pm - 10:40 amONT  Ontario-PIT Pittsburgh
7h 45m1 stop Chicago Midway
$377Southwest
Mon, Oct 26 - Mon, Nov 2
Delta Logo
5:28 pm - 11:49 pmPIT  Pittsburgh-ONT Ontario
9h 21m1 stop Salt Lake City
Delta Logo
6:00 am - 4:39 pmONT  Ontario-PIT Pittsburgh
7h 39m1 stop Salt Lake City
$377Delta
Mon, Nov 23 - Thu, Dec 3
Delta Logo
5:35 pm - 11:57 pmPIT  Pittsburgh-ONT Ontario
9h 22m1 stop Salt Lake City
Delta Logo
12:00 pm - 9:49 pmONT  Ontario-PIT Pittsburgh
6h 49m1 stop Atlanta Hartsfield-Jackson
$377Delta
Tue, Dec 15 - Thu, Jan 14
United Airlines Logo
5:06 pm - 9:59 pmPIT  Pittsburgh-ONT Ontario
7h 53m1 stop Houston George Bush Intcntl
United Airlines Logo
6:00 am - 4:07 pmONT  Ontario-PIT Pittsburgh
7h 07m1 stop San Francisco
$388United Airlines
Fri, Oct 23 - Tue, Oct 27
Alaska Airlines Logo
8:05 am - 3:20 pmPIT  Pittsburgh-ONT Ontario
10h 15m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:00 am - 8:35 pmONT  Ontario-PIT Pittsburgh
10h 35m1 stop Seattle/Tacoma Intl
$393Alaska Airlines
Wed, Jan 6 - Thu, Jan 14
Alaska Airlines Logo
8:12 am - 3:05 pmPIT  Pittsburgh-ONT Ontario
9h 53m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 8:30 pmONT  Ontario-PIT Pittsburgh
11h 30m1 stop Seattle/Tacoma Intl
$393Alaska Airlines
Mon, Nov 23 - Tue, Dec 1
United Airlines Logo
5:06 pm - 9:59 pmPIT  Pittsburgh-ONT Ontario
7h 53m1 stop Houston George Bush Intcntl
United Airlines Logo
5:00 am - 4:55 pmONT  Ontario-PIT Pittsburgh
8h 55m2 stops Denver Intl Chicago O'Hare Intl
$394United Airlines
Fri, Oct 23 - Tue, Oct 27

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United Airlines flights from Pittsburgh to Ontario

Our best United Airlines deals on Pittsburgh to Ontario flight tickets
United Airlines
Oct 23
PIT5:06 pmPittsburgh
7h 53m
1 stop
ONT9:59 pmOntario
Oct 27
ONT6:00 amOntario
7h 07m
1 stop
PIT4:07 pmPittsburgh
$388
United Airlines
Oct 23
PIT5:06 pmPittsburgh
7h 53m
1 stop
ONT9:59 pmOntario
Oct 27
ONT5:00 amOntario
8h 55m
2 stops
PIT4:55 pmPittsburgh
$394
United Airlines
Oct 23
PIT5:06 pmPittsburgh
7h 53m
1 stop
ONT9:59 pmOntario
Oct 30
ONT6:59 amOntario
6h 56m
1 stop
PIT4:55 pmPittsburgh
$404

American Airlines flights from Pittsburgh to Ontario

Our best American Airlines deals on Pittsburgh to Ontario flight tickets
American Airlines
Oct 31
PIT3:40 pmPittsburgh
8h 31m
1 stop
ONT9:11 pmOntario
Nov 7
ONT10:30 amOntario
9h 08m
1 stop
PIT10:38 pmPittsburgh
$376
American Airlines
Nov 3
PIT7:09 amPittsburgh
12h 10m
2 stops
ONT4:19 pmOntario
Nov 11
ONT1:23 pmOntario
6h 23m
1 stop
PIT10:46 pmPittsburgh
$389
American Airlines
Nov 21
PIT7:25 pmPittsburgh
7h 34m
1 stop
ONT11:59 pmOntario
Nov 27
ONT9:20 amOntario
6h 55m
1 stop
PIT7:15 pmPittsburgh
$392

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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Route

Depart

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Price

Cheapest round-trip

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Sat 10/31

3:40 pm-9:11 pm

1 stop8h 31m

Ontario

Sat 11/7

10:30 am-10:38 pm

1 stop9h 08m

$376

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Tue 11/3

3:34 pm-10:57 pm

1 stop10h 23m

Ontario

Wed 11/11

1:23 pm-10:46 pm

1 stop6h 23m

$377
Quickest round-trip

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 1/14

2:00 pm-6:10 pm

1 stop7h 10m

Ontario

Thu 2/18

2:45 pm-11:30 pm

1 stop5h 45m

$377

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Mon 10/26

7:20 pm-11:55 pm

1 stop7h 35m

Ontario

Mon 11/2

11:55 pm-10:40 am

1 stop7h 45m

$377

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Mon 11/23

5:28 pm-11:49 pm

1 stop9h 21m

Ontario

Thu 12/3

6:00 am-4:39 pm

1 stop7h 39m

$377

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Tue 12/15

5:35 pm-11:57 pm

1 stop9h 22m

Ontario

Thu 1/14

12:00 pm-9:49 pm

1 stop6h 49m

$377

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Fri 10/23

5:06 pm-9:59 pm

1 stop7h 53m

Ontario

Tue 10/27

6:00 am-4:07 pm

1 stop7h 07m

$388

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 1/6

8:05 am-3:20 pm

1 stop10h 15m

Ontario

Thu 1/14

7:00 am-8:35 pm

1 stop10h 35m

$393

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Mon 11/23

8:12 am-3:05 pm

1 stop9h 53m

Ontario

Tue 12/1

6:00 am-8:30 pm

1 stop11h 30m

$393

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Fri 10/23

5:06 pm-9:59 pm

1 stop7h 53m

Ontario

Tue 10/27

5:00 am-4:55 pm

2 stops8h 55m

$394

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 $454 to $630.
The lowest price recently found on this route was $376.

What is the cheapest month to fly to Ontario?

In general, February 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 $357. If you aren’t able to travel during the month of February, then book flights to Ontario from Pittsburgh during August instead. Flights to Ontario in August, while not as cheap as those in February, still average around $390.

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 September 2026, prices for Pittsburgh to Ontario flights are approximately 11% 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

$158

Fastest flight time

7h 00m

Direct flights

None
The best one-way flight to Ontario from Pittsburgh in the past 72 hours is $158. The best round-trip flight deal from Pittsburgh to Ontario found on momondo in the last 72 hours is $376.
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.
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 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
DeltaPriceFrom $260Free CancellationRating
7.8
8,605 reviews
Search Delta flights
United AirlinesPriceFrom $303Free CancellationRating
7.4
10,245 reviews
Search United Airlines flights
SouthwestPriceFrom $305Free CancellationRating
8.0
4,202 reviews
Search Southwest flights
American AirlinesPriceFrom $334Free CancellationRating
7.0
12,097 reviews
Search American Airlines flights

  • United Airlines Flights From Pittsburgh to Ontario

    United Airlines flies from Pittsburgh to Ontario around 6 times per week, with 10,245 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Pittsburgh to Ontario in the last 72 hours was $303 (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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