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Cheap flights from Pittsburgh to Los Angeles from $126

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 10/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Pittsburgh to Los Angeles

Cheap round-trip flights

Logo
5:25 pm - 9:55 pmPIT-ONT
7h 30m1 stop
Logo
10:28 pm - 4:20 pmONT-PIT
14h 52m1 stop
$216
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Fri, Sep 26 - Sun, Sep 28
Logo
2:17 pm - 7:54 pmPIT-ONT
32h 37m2 stops
Logo
10:28 pm - 4:20 pmONT-PIT
14h 52m1 stop
$264
Find Deal
Fri, Sep 26 - Sun, Sep 28
Frontier Logo
5:30 pm - 11:10 amPIT-ONT
20h 40m1 stop
Frontier Logo
6:53 am - 4:35 pmONT-PIT
6h 42m1 stop
$277Frontier
Find Deal
Fri, Nov 7 - Mon, Nov 10
Frontier Logo
2:38 pm - 7:29 amPIT-ONT
19h 51m2 stops
Frontier Logo
4:05 pm - 1:53 pmONT-PIT
18h 48m2 stops
$278Frontier
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Sun, Nov 9 - Sun, Nov 16
American Airlines Logo
7:01 am - 12:03 pmPIT-ONT
8h 02m1 stop
American Airlines Logo
12:55 pm - 10:52 pmONT-PIT
6h 57m1 stop
$291American Airlines
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Wed, Nov 19 - Sat, Nov 22
United Airlines Logo
6:15 am - 12:32 pmPIT-ONT
9h 17m2 stops
United Airlines Logo
6:36 pm - 5:10 amONT-PIT
7h 34m1 stop
$296United Airlines
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Tue, Sep 23 - Fri, Oct 3
American Airlines Logo
3:06 pm - 9:24 pmPIT-ONT
9h 18m1 stop
American Airlines Logo
1:10 pm - 10:55 pmONT-PIT
6h 45m1 stop
$321American Airlines
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Thu, Sep 4 - Thu, Oct 2
Alaska Airlines Logo
7:59 pm - 12:37 pmPIT-ONT
19h 38m1 stop
Alaska Airlines Logo
4:11 pm - 6:32 pmONT-PIT
23h 21m1 stop
$337Alaska Airlines
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Fri, Oct 24 - Mon, Oct 27
United Airlines Logo
4:55 pm - 9:24 pmPIT-ONT
7h 29m1 stop
United Airlines Logo
7:02 am - 6:16 pmONT-PIT
8h 14m1 stop
$382United Airlines
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Tue, Sep 30 - Tue, Oct 7
Alaska Airlines Logo
8:08 am - 2:12 pmPIT-ONT
9h 04m1 stop
Alaska Airlines Logo
3:06 pm - 6:48 amONT-PIT
12h 42m1 stop
$384Alaska Airlines
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Wed, Sep 24 - Tue, Sep 30

Frontier flights from Pittsburgh to Ontario

Our best Frontier deals on Pittsburgh to Ontario flight tickets
Frontier
Nov 7
PIT5:30 pmPittsburgh
20h 40m
1 stop
ONT11:10 amOntario
Nov 10
ONT6:53 amOntario
6h 42m
1 stop
PIT4:35 pmPittsburgh
$277
Find similar
Frontier
Nov 9
PIT2:38 pmPittsburgh
19h 51m
2 stops
ONT7:29 amOntario
Nov 16
ONT4:05 pmOntario
18h 48m
2 stops
PIT1:53 pmPittsburgh
$278
Find similar
Frontier
Nov 7
PIT5:30 pmPittsburgh
9h 20m
1 stop
ONT11:50 pmOntario
Nov 10
ONT6:53 amOntario
6h 42m
1 stop
PIT4:35 pmPittsburgh
$293
Find similar

American Airlines flights from Pittsburgh to Ontario

Our best American Airlines deals on Pittsburgh to Ontario flight tickets
American Airlines
Nov 19
PIT7:01 amPittsburgh
8h 02m
1 stop
ONT12:03 pmOntario
Nov 22
ONT12:55 pmOntario
6h 57m
1 stop
PIT10:52 pmPittsburgh
$291
Find similar
American Airlines
Sep 4
PIT3:06 pmPittsburgh
9h 18m
1 stop
ONT9:24 pmOntario
Oct 2
ONT1:10 pmOntario
6h 45m
1 stop
PIT10:55 pmPittsburgh
$321
Find similar
American Airlines
Sep 4
PIT5:09 amPittsburgh
9h 47m
2 stops
ONT11:56 amOntario
Oct 2
ONT1:10 pmOntario
6h 45m
1 stop
PIT10:55 pmPittsburgh
$326
Find similar

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 31, 2025.
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

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Fri 9/26

5:25 pm-9:55 pm

1 stop7h 30m

Ontario

Sun 9/28

10:28 pm-4:20 pm

1 stop14h 52m

$216

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Fri 9/26

2:17 pm-7:54 pm

2 stops32h 37m

Ontario

Sun 9/28

10:28 pm-4:20 pm

1 stop14h 52m

$264

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Fri 11/7

5:30 pm-11:10 am

1 stop20h 40m

Ontario

Mon 11/10

6:53 am-4:35 pm

1 stop6h 42m

$277

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Sun 11/9

2:38 pm-7:29 am

2 stops19h 51m

Ontario

Sun 11/16

4:05 pm-1:53 pm

2 stops18h 48m

$278

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 11/19

7:01 am-12:03 pm

1 stop8h 02m

Ontario

Sat 11/22

12:55 pm-10:52 pm

1 stop6h 57m

$291

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 9/23

6:15 am-12:32 pm

2 stops9h 17m

Ontario

Fri 10/3

6:36 pm-5:10 am

1 stop7h 34m

$296

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 9/4

3:06 pm-9:24 pm

1 stop9h 18m

Ontario

Thu 10/2

1:10 pm-10:55 pm

1 stop6h 45m

$321

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Fri 10/24

7:59 pm-12:37 pm

1 stop19h 38m

Ontario

Mon 10/27

4:11 pm-6:32 pm

1 stop23h 21m

$337

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 9/30

4:55 pm-9:24 pm

1 stop7h 29m

Ontario

Tue 10/7

7:02 am-6:16 pm

1 stop8h 14m

$382

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 9/24

8:08 am-2:12 pm

1 stop9h 04m

Ontario

Tue 9/30

3:06 pm-6:48 am

1 stop12h 42m

$384

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, November 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 $368. If you aren’t able to travel during the month of November, then book flights to Ontario from Pittsburgh during April instead. Flights to Ontario in April, while not as cheap as those in November, still average around $371.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $396. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Pittsburgh to Ontario for around $527.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Pittsburgh to Ontario when you can find flight prices for as low as $404. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $458 on average. Flights to Ontario from Pittsburgh in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Pittsburgh to Ontario flight prices changed over time?

As of August 2025, prices for Pittsburgh to Ontario flights are approximately 2% 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

Direct flights

None
There are no direct flights from Pittsburgh to Ontario. There are no popular flight routes from Pittsburgh to Ontario.
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  • 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 44m.

  • 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
American AirlinesPriceFrom $268Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $301Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
United AirlinesPriceFrom $321Free CancellationRating
7.4
8,942 reviews
Search United 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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