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Cheap flights from Pittsburgh to Los Angeles from $132

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 2/27. 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
0 bags

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Cheap round-trip flights

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Frontier Logo
7:59 pm - 12:20 am
PIT
-
ONT
7h 21m1 stop
Frontier Logo
6:20 am - 7:04 pm
ONT
-
PIT
9h 44m1 stop
$217Frontier
Fri, Jan 30 - Mon, Feb 2
Multiple Airlines Logo
7:00 am - 5:03 pm
PIT
-
ONT
13h 03m2 stops
Multiple Airlines Logo
2:08 pm - 3:59 pm
ONT
-
PIT
22h 51m1 stop
$283Multiple Airlines
Wed, Feb 11 - Thu, Feb 19
Alaska Airlines Logo
7:00 am - 3:08 pm
PIT
-
ONT
11h 08m1 stop
Alaska Airlines Logo
11:53 am - 6:46 pm
ONT
-
PIT
27h 53m1 stop
$294Alaska Airlines
Wed, Jan 28 - Wed, Feb 4
Alaska Airlines Logo
7:00 am - 10:59 am
PIT
-
ONT
30h 59m1 stop
Alaska Airlines Logo
6:00 am - 6:46 pm
ONT
-
PIT
9h 46m1 stop
$304Alaska Airlines
Thu, Jan 22 - Sun, Jan 25
Alaska Airlines Logo
7:31 pm - 11:32 pm
PIT
-
ONT
31h 01m1 stop
Alaska Airlines Logo
12:02 pm - 6:10 pm
ONT
-
PIT
27h 08m1 stop
$313Alaska Airlines
Fri, Mar 13 - Tue, Mar 17
Delta Logo
5:32 pm - 10:38 pm
PIT
-
ONT
8h 06m1 stop
Delta Logo
12:41 pm - 10:56 pm
ONT
-
PIT
7h 15m1 stop
$315Delta
Tue, Jan 6 - Thu, Jan 8
Delta Logo
6:19 am - 1:56 pm
PIT
-
ONT
10h 37m2 stops
Delta Logo
7:30 am - 11:46 pm
ONT
-
PIT
13h 16m2 stops
$321Delta
Wed, Jan 28 - Wed, Feb 4
Alaska Airlines Logo
7:00 am - 11:56 pm
PIT
-
ONT
19h 56m1 stop
Alaska Airlines Logo
4:03 pm - 6:46 pm
ONT
-
PIT
23h 43m1 stop
$324Alaska Airlines
Thu, Jan 15 - Thu, Jan 22
American Airlines Logo
6:54 am - 12:03 pm
PIT
-
ONT
8h 09m1 stop
American Airlines Logo
12:57 pm - 10:37 pm
ONT
-
PIT
6h 40m1 stop
$327American Airlines
Sat, Jan 17 - Sat, Jan 24
Multiple Airlines Logo
7:00 am - 5:03 pm
PIT
-
ONT
13h 03m2 stops
Multiple Airlines Logo
6:20 am - 7:04 pm
ONT
-
PIT
9h 44m1 stop
$329Multiple Airlines
Mon, Jan 26 - Fri, Jan 30

American Airlines flights from Pittsburgh to Ontario

Our best American Airlines deals on Pittsburgh to Ontario flight tickets
American Airlines
Jan 17
PIT6:54 amPittsburgh
8h 09m
1 stop
ONT12:03 pmOntario
Jan 24
ONT12:57 pmOntario
6h 40m
1 stop
PIT10:37 pmPittsburgh
$327
Find similar
American Airlines
Dec 24
PIT6:25 amPittsburgh
10h 27m
1 stop
ONT1:52 pmOntario
Dec 28
ONT2:42 pmOntario
6h 53m
1 stop
PIT12:35 amPittsburgh
$572
Find similar
American Airlines
Dec 24
PIT7:20 amPittsburgh
11h 47m
2 stops
ONT4:07 pmOntario
Dec 28
ONT10:50 amOntario
8h 43m
1 stop
PIT10:33 pmPittsburgh
$603
Find similar

Alaska Airlines flights from Pittsburgh to Ontario

Our best Alaska Airlines deals on Pittsburgh to Ontario flight tickets
Alaska Airlines
Jan 21
PIT7:00 amPittsburgh
16h 36m
1 stop
ONT8:36 pmOntario
Jan 26
ONT6:00 amOntario
9h 46m
1 stop
PIT6:46 pmPittsburgh
$294
Find similar
Alaska Airlines
Feb 1
PIT7:00 amPittsburgh
30h 59m
1 stop
ONT10:59 amOntario
Feb 8
ONT6:00 amOntario
9h 46m
1 stop
PIT6:46 pmPittsburgh
$304
Find similar
Alaska Airlines
Mar 13
PIT7:31 pmPittsburgh
31h 01m
1 stop
ONT11:32 pmOntario
Mar 17
ONT12:02 pmOntario
27h 08m
1 stop
PIT6:10 pmPittsburgh
$313
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 December 15, 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 1/30

7:59 pm-12:20 am

1 stop7h 21m

Ontario

Mon 2/2

6:20 am-7:04 pm

1 stop9h 44m

$217

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 2/11

7:00 am-5:03 pm

2 stops13h 03m

Ontario

Thu 2/19

2:08 pm-3:59 pm

1 stop22h 51m

$283

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 1/28

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Wed 2/4

11:53 am-6:46 pm

1 stop27h 53m

$294

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 1/22

7:00 am-10:59 am

1 stop30h 59m

Ontario

Sun 1/25

6:00 am-6:46 pm

1 stop9h 46m

$304

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Fri 3/13

7:31 pm-11:32 pm

1 stop31h 01m

Ontario

Tue 3/17

12:02 pm-6:10 pm

1 stop27h 08m

$313

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 1/6

5:32 pm-10:38 pm

1 stop8h 06m

Ontario

Thu 1/8

12:41 pm-10:56 pm

1 stop7h 15m

$315

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 1/28

6:19 am-1:56 pm

2 stops10h 37m

Ontario

Wed 2/4

7:30 am-11:46 pm

2 stops13h 16m

$321

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 1/15

7:00 am-11:56 pm

1 stop19h 56m

Ontario

Thu 1/22

4:03 pm-6:46 pm

1 stop23h 43m

$324

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Sat 1/17

6:54 am-12:03 pm

1 stop8h 09m

Ontario

Sat 1/24

12:57 pm-10:37 pm

1 stop6h 40m

$327

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Mon 1/26

7:00 am-5:03 pm

2 stops13h 03m

Ontario

Fri 1/30

6:20 am-7:04 pm

1 stop9h 44m

$329

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, April 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 $382. If you aren’t able to travel during the month of April, then book flights to Ontario from Pittsburgh during July instead. Flights to Ontario in July, while not as cheap as those in April, still average around $402.

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?

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 07m

Direct flights

None
The fastest flight from Pittsburgh to Ontario takes 7h 07m
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 7h 07m.

  • 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
United AirlinesPriceFrom $296Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
SouthwestPriceFrom $303Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
American AirlinesPriceFrom $306Free CancellationRating
7.2
11,052 reviews
Search American Airlines flights

  • Southwest Flights From Pittsburgh to Ontario

    Southwest flies from Pittsburgh to Ontario around 3 times per week, with 4,250 momondo users rating the airline 7.9/10. The cheapest Southwest deal from Pittsburgh to Ontario in the last 72 hours was $303 (round-trip), much lower than the average airfare cost of $416 for Southwest flights on this route.

  • United Airlines Flights From Pittsburgh to Ontario

    Another popular option for Pittsburgh to Ontario flights is United Airlines (7.4/10, 9,092 ratings). United Airlines flies from Pittsburgh to Ontario around 5 times per week, with deals starting from $296 round-trip and rising to an average price of around $476.

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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