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Cheap flights from Pittsburgh to Los Angeles from $169

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.
United Airlines Logo
4:35 pm - 9:21 pmPIT  Pittsburgh-ONT Ontario
7h 46m1 stop Houston George Bush Intcntl
United Airlines Logo
6:45 am - 6:34 pmONT  Ontario-PIT Pittsburgh
8h 49m1 stop Chicago O'Hare Intl
$332United Airlines
Thu, Jan 7 - Tue, Jan 12
Delta Logo
6:00 am - 11:08 amPIT  Pittsburgh-ONT Ontario
8h 08m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:20 pm - 12:46 amONT  Ontario-PIT Pittsburgh
9h 26m1 stop Atlanta Hartsfield-Jackson
$337Delta
Wed, Dec 9 - Wed, Dec 16
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
$337American Airlines
Wed, Sep 16 - Tue, Sep 29
American Airlines Logo
6:24 pm - 10:37 pmPIT  Pittsburgh-ONT Ontario
7h 13m1 stop Dallas/Fort Worth
American Airlines Logo
11:59 pm - 10:44 amONT  Ontario-PIT Pittsburgh
7h 45m1 stop Dallas/Fort Worth
$337American Airlines
Wed, Sep 16 - Mon, Oct 5
Southwest Logo
5:40 am - 9:55 amPIT  Pittsburgh-ONT Ontario
7h 15m1 stop Denver Intl
Southwest Logo
11:55 pm - 10:15 amONT  Ontario-PIT Pittsburgh
7h 20m1 stop Chicago Midway
$337Southwest
Thu, Oct 15 - Mon, Oct 19
Southwest Logo
6:00 am - 10:15 amPIT  Pittsburgh-ONT Ontario
7h 15m1 stop Denver Intl
Southwest Logo
12:30 pm - 10:25 pmONT  Ontario-PIT Pittsburgh
6h 55m1 stop Houston Hobby
$337Southwest
Tue, Sep 22 - Tue, Sep 29
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
$337Alaska Airlines
Thu, Feb 4 - Mon, Feb 8
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
$337Alaska Airlines
Wed, Feb 3 - Mon, Feb 8
United Airlines Logo
5:48 pm - 10:51 pmPIT  Pittsburgh-ONT Ontario
8h 03m1 stop San Francisco
United Airlines Logo
6:07 am - 4:04 pmONT  Ontario-PIT Pittsburgh
6h 57m1 stop San Francisco
$337United Airlines
Wed, Oct 14 - Thu, Oct 15
Delta Logo
5:30 pm - 11:47 pmPIT  Pittsburgh-ONT Ontario
9h 17m1 stop Salt Lake City
Delta Logo
12:19 pm - 12:31 amONT  Ontario-PIT Pittsburgh
9h 12m1 stop Atlanta Hartsfield-Jackson
$337Delta
Wed, Sep 23 - Mon, Sep 28

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United Airlines flights from Pittsburgh to Ontario

Our best United Airlines deals on Pittsburgh to Ontario flight tickets
United Airlines
Jan 7
PIT4:35 pmPittsburgh
7h 46m
1 stop
ONT9:21 pmOntario
Jan 12
ONT6:45 amOntario
8h 49m
1 stop
PIT6:34 pmPittsburgh
$332
United Airlines
Jan 7
PIT10:20 amPittsburgh
11h 24m
2 stops
ONT6:44 pmOntario
Jan 12
ONT1:00 pmOntario
6h 37m
1 stop
PIT10:37 pmPittsburgh
$342
United Airlines
Oct 16
PIT5:06 pmPittsburgh
7h 53m
1 stop
ONT9:59 pmOntario
Oct 20
ONT1:22 pmOntario
6h 22m
1 stop
PIT10:44 pmPittsburgh
$348

American Airlines flights from Pittsburgh to Ontario

Our best American Airlines deals on Pittsburgh to Ontario flight tickets
American Airlines
Sep 16
PIT6:24 pmPittsburgh
7h 13m
1 stop
ONT10:37 pmOntario
Sep 21
ONT12:37 pmOntario
7h 22m
1 stop
PIT10:59 pmPittsburgh
$362
American Airlines
Sep 22
PIT6:24 pmPittsburgh
7h 13m
1 stop
ONT10:37 pmOntario
Sep 29
ONT8:25 amOntario
9h 40m
2 stops
PIT9:05 pmPittsburgh
$369
American Airlines
Sep 26
PIT7:43 amPittsburgh
7h 20m
1 stop
ONT12:03 pmOntario
Oct 3
ONT1:05 pmOntario
6h 27m
1 stop
PIT10:32 pmPittsburgh
$378

momondo Fare Finder

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

Fly from

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Route

Depart

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Price

Cheapest round-trip

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 1/7

4:35 pm-9:21 pm

1 stop7h 46m

Ontario

Tue 1/12

6:45 am-6:34 pm

1 stop8h 49m

$332

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 12/9

6:00 am-11:08 am

1 stop8h 08m

Ontario

Wed 12/16

12:20 pm-12:46 am

1 stop9h 26m

$337

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 9/16

6:24 pm-10:37 pm

1 stop7h 13m

Ontario

Tue 9/29

12:37 pm-10:59 pm

1 stop7h 22m

$337

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 9/16

6:24 pm-10:37 pm

1 stop7h 13m

Ontario

Mon 10/5

11:59 pm-10:44 am

1 stop7h 45m

$337

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 10/15

5:40 am-9:55 am

1 stop7h 15m

Ontario

Mon 10/19

11:55 pm-10:15 am

1 stop7h 20m

$337
Quickest round-trip

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Tue 9/22

6:00 am-10:15 am

1 stop7h 15m

Ontario

Tue 9/29

12:30 pm-10:25 pm

1 stop6h 55m

$337

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 2/4

8:05 am-3:20 pm

1 stop10h 15m

Ontario

Mon 2/8

7:00 am-8:35 pm

1 stop10h 35m

$337

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 2/3

8:05 am-3:20 pm

1 stop10h 15m

Ontario

Mon 2/8

7:00 am-8:35 pm

1 stop10h 35m

$337

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 10/14

5:48 pm-10:51 pm

1 stop8h 03m

Ontario

Thu 10/15

6:07 am-4:04 pm

1 stop6h 57m

$337

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Wed 9/23

5:30 pm-11:47 pm

1 stop9h 17m

Ontario

Mon 9/28

12:19 pm-12:31 am

1 stop9h 12m

$337

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 $344 to $404.
The lowest price recently found on this route was $337.

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 $335. 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?

As of August 2026, prices for Pittsburgh to Ontario flights are approximately 6% more expensive 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

$169

Fastest flight time

6h 56m

Direct flights

Sun

Airports in Ontario

1 airport
The best one-way flight to Ontario from Pittsburgh in the past 72 hours is $169. The best round-trip flight deal from Pittsburgh to Ontario found on momondo in the last 72 hours is $332.
The fastest flight from Pittsburgh to Ontario takes 6h 56m
Direct flights go from Pittsburgh to Ontario on Sunday. There are no airlines offering direct flights.
There is 1 airport in Ontario. From Pittsburgh there are direct flights to Ontario (ONT).
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 56m.

  • 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
8,529 reviews
Search Delta flights
United AirlinesPriceFrom $303Free CancellationRating
7.4
10,120 reviews
Search United Airlines flights
SouthwestPriceFrom $305Free CancellationRating
8.0
4,205 reviews
Search Southwest flights
American AirlinesPriceFrom $314Free CancellationRating
7.1
11,991 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 10,120 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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