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Cheap flights from Pittsburgh to Los Angeles from $151

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 9/10. 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.
Delta Logo
5:30 pm - 10:04 pmPIT  Pittsburgh-ONT Ontario
7h 34m1 stop Salt Lake City
Delta Logo
12:17 pm - 12:31 amONT  Ontario-PIT Pittsburgh
9h 14m1 stop Atlanta Hartsfield-Jackson
$311Delta
Wed, Sep 9 - Wed, Sep 16
Delta Logo
5:30 pm - 11:47 pmPIT  Pittsburgh-ONT Ontario
9h 17m1 stop Salt Lake City
Delta Logo
10:00 pm - 10:11 amONT  Ontario-PIT Pittsburgh
9h 11m1 stop Atlanta Hartsfield-Jackson
$311Delta
Wed, Sep 16 - Mon, Sep 21
Southwest Logo
5:40 am - 9:55 amPIT  Pittsburgh-ONT Ontario
7h 15m1 stop Denver Intl
Southwest Logo
12:40 pm - 11:40 pmONT  Ontario-PIT Pittsburgh
8h 00m1 stop Denver Intl
$311Southwest
Mon, Oct 5 - Mon, Oct 5
American Airlines Logo
6:24 pm - 10:37 pmPIT  Pittsburgh-ONT Ontario
7h 13m1 stop Dallas/Fort Worth
American Airlines Logo
12:37 pm - 10:59 pmONT  Ontario-PIT Pittsburgh
7h 22m1 stop Dallas/Fort Worth
$311American Airlines
Tue, Sep 22 - Tue, Sep 29
Alaska Airlines Logo
7:02 am - 2:16 pmPIT  Pittsburgh-ONT Ontario
10h 14m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
12:12 pm - 5:25 amONT  Ontario-PIT Pittsburgh
14h 13m1 stop Seattle/Tacoma Intl
$311Alaska Airlines
Tue, Sep 22 - Tue, Sep 29
Alaska Airlines Logo
7:02 am - 2:16 pmPIT  Pittsburgh-ONT Ontario
10h 14m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
3:14 pm - 5:25 amONT  Ontario-PIT Pittsburgh
11h 11m1 stop Seattle/Tacoma Intl
$311Alaska Airlines
Tue, Sep 22 - Sat, Sep 26
American Airlines Logo
7:41 pm - 11:36 pmPIT  Pittsburgh-ONT Ontario
6h 55m1 stop Dallas/Fort Worth
American Airlines Logo
12:37 pm - 10:59 pmONT  Ontario-PIT Pittsburgh
7h 22m1 stop Dallas/Fort Worth
$313American Airlines
Thu, Sep 10 - Wed, Sep 16
Southwest Logo
6:30 am - 12:30 pmPIT  Pittsburgh-ONT Ontario
9h 00m2 stops Nashville Intl Dallas Love Field
Southwest Logo
12:30 pm - 10:25 pmONT  Ontario-PIT Pittsburgh
6h 55m1 stop Houston Hobby
$335Southwest
Wed, Sep 2 - Wed, Sep 16
United Airlines Logo
2:11 pm - 8:53 pmPIT  Pittsburgh-ONT Ontario
9h 42m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
6:08 am - 6:30 pmONT  Ontario-PIT Pittsburgh
9h 22m2 stops San Francisco Washington, D.C. Dulles Intl
$339United Airlines
Wed, Sep 9 - Wed, Sep 16
United Airlines Logo
6:10 pm - 10:59 pmPIT  Pittsburgh-ONT Ontario
7h 49m1 stop Chicago O'Hare Intl
United Airlines Logo
6:08 am - 6:30 pmONT  Ontario-PIT Pittsburgh
9h 22m2 stops San Francisco Washington, D.C. Dulles Intl
$352United Airlines
Wed, Sep 9 - Wed, Sep 16

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United Airlines flights from Pittsburgh to Ontario

Our best United Airlines deals on Pittsburgh to Ontario flight tickets
United Airlines
Sep 9
PIT2:11 pmPittsburgh
9h 42m
2 stops
ONT8:53 pmOntario
Sep 16
ONT6:08 amOntario
9h 22m
2 stops
PIT6:30 pmPittsburgh
$339
United Airlines
Sep 9
PIT6:10 pmPittsburgh
7h 49m
1 stop
ONT10:59 pmOntario
Sep 16
ONT6:08 amOntario
9h 22m
2 stops
PIT6:30 pmPittsburgh
$352
United Airlines
Sep 2
PIT2:11 pmPittsburgh
9h 43m
2 stops
ONT8:54 pmOntario
Sep 16
ONT5:00 amOntario
9h 14m
2 stops
PIT5:14 pmPittsburgh
$387

Alaska Airlines flights from Pittsburgh to Ontario

Our best Alaska Airlines deals on Pittsburgh to Ontario flight tickets
Alaska Airlines
Sep 22
PIT7:02 amPittsburgh
10h 14m
1 stop
ONT2:16 pmOntario
Sep 29
ONT12:12 pmOntario
14h 13m
1 stop
PIT5:25 amPittsburgh
$311
Alaska Airlines
Sep 23
PIT7:02 amPittsburgh
10h 14m
1 stop
ONT2:16 pmOntario
Sep 29
ONT3:14 pmOntario
11h 11m
1 stop
PIT5:25 amPittsburgh
$347
Alaska Airlines
Sep 1
PIT7:02 amPittsburgh
10h 07m
1 stop
ONT2:09 pmOntario
Sep 10
ONT3:14 pmOntario
11h 11m
1 stop
PIT5:25 amPittsburgh
$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 August 15, 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 Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 9/9

5:30 pm-10:04 pm

1 stop7h 34m

Ontario

Wed 9/16

12:17 pm-12:31 am

1 stop9h 14m

$311

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 9/16

5:30 pm-11:47 pm

1 stop9h 17m

Ontario

Mon 9/21

10:00 pm-10:11 am

1 stop9h 11m

$311

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Mon 10/5

5:40 am-9:55 am

1 stop7h 15m

Ontario

Mon 10/5

12:40 pm-11:40 pm

1 stop8h 00m

$311

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Tue 9/22

6:24 pm-10:37 pm

1 stop7h 13m

Ontario

Tue 9/29

12:37 pm-10:59 pm

1 stop7h 22m

$311

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Tue 9/22

7:02 am-2:16 pm

1 stop10h 14m

Ontario

Tue 9/29

12:12 pm-5:25 am

1 stop14h 13m

$311

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Tue 9/22

7:02 am-2:16 pm

1 stop10h 14m

Ontario

Sat 9/26

3:14 pm-5:25 am

1 stop11h 11m

$311
Quickest round-trip

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 9/10

7:41 pm-11:36 pm

1 stop6h 55m

Ontario

Wed 9/16

12:37 pm-10:59 pm

1 stop7h 22m

$313

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 9/2

6:30 am-12:30 pm

2 stops9h 00m

Ontario

Wed 9/16

12:30 pm-10:25 pm

1 stop6h 55m

$335

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 9/9

2:11 pm-8:53 pm

2 stops9h 42m

Ontario

Wed 9/16

6:08 am-6:30 pm

2 stops9h 22m

$339

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 9/9

6:10 pm-10:59 pm

1 stop7h 49m

Ontario

Wed 9/16

6:08 am-6:30 pm

2 stops9h 22m

$352

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

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 $384 to $390.
The lowest price recently found on this route was $311.

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 February instead. Flights to Ontario in February, while not as cheap as those in September, 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 15m

Direct flights

None
The fastest flight from Pittsburgh to Ontario takes 7h 15m
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 15m.

  • 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
8,502 reviews
Search Delta flights
United AirlinesPriceFrom $303Free CancellationRating
7.4
10,108 reviews
Search United Airlines flights
SouthwestPriceFrom $305Free CancellationRating
8.0
4,218 reviews
Search Southwest flights
American AirlinesPriceFrom $314Free CancellationRating
7.1
11,929 reviews
Search American Airlines flights

  • United Airlines Flights From Pittsburgh to Ontario

    United Airlines flies from Pittsburgh to Ontario around 3 times per week, with 10,108 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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