Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Pittsburgh to Los Angeles from $123

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 10/31. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Pittsburgh to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:40 pm - 9:57 pmPIT-ONT
8h 17m1 stop
Multiple Airlines Logo
6:00 am - 3:45 pmONT-PIT
6h 45m1 stop
$208Multiple Airlines
Find Deal
Fri, Nov 7 - Mon, Nov 10
Multiple Airlines Logo
4:40 pm - 9:57 pmPIT-ONT
8h 17m1 stop
Multiple Airlines Logo
1:46 pm - 9:11 pmONT-PIT
28h 25m2 stops
$270Multiple Airlines
Find Deal
Fri, Nov 7 - Mon, Nov 10
United Airlines Logo
4:30 pm - 9:19 pmPIT-ONT
7h 49m1 stop
United Airlines Logo
6:00 am - 3:45 pmONT-PIT
6h 45m1 stop
$292United Airlines
Find Deal
Tue, Feb 17 - Tue, Feb 24
Alaska Airlines Logo
7:00 am - 3:08 pmPIT-ONT
11h 08m1 stop
Alaska Airlines Logo
6:00 am - 6:10 pmONT-PIT
9h 10m1 stop
$296Alaska Airlines
Find Deal
Wed, Feb 11 - Sun, Feb 15
United Airlines Logo
4:30 pm - 9:19 pmPIT-ONT
7h 49m1 stop
United Airlines Logo
6:00 am - 6:51 pmONT-PIT
9h 51m2 stops
$298United Airlines
Find Deal
Tue, Feb 17 - Tue, Feb 24
American Airlines Logo
11:58 am - 5:55 pmPIT-ONT
8h 57m2 stops
American Airlines Logo
10:38 am - 9:12 pmONT-PIT
7h 34m2 stops
$307American Airlines
Find Deal
Tue, Feb 17 - Tue, Feb 24
Alaska Airlines Logo
7:10 pm - 10:37 pmPIT-ONT
30h 27m1 stop
Alaska Airlines Logo
6:00 am - 6:10 pmONT-PIT
9h 10m1 stop
$314Alaska Airlines
Find Deal
Wed, Mar 4 - Mon, Mar 9
American Airlines Logo
7:22 pm - 11:55 pmPIT-ONT
7h 33m1 stop
American Airlines Logo
12:55 pm - 10:43 pmONT-PIT
6h 48m1 stop
$316American Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Southwest Logo
6:15 am - 12:25 pmPIT-ONT
9h 10m2 stops
Southwest Logo
5:50 am - 6:25 pmONT-PIT
9h 35m2 stops
$401Southwest
Find Deal
Fri, Nov 7 - Mon, Nov 10
Southwest Logo
2:15 pm - 8:35 pmPIT-ONT
9h 20m2 stops
Southwest Logo
5:25 am - 4:55 pmONT-PIT
8h 30m2 stops
$404Southwest
Find Deal
Thu, Dec 18 - Mon, Jan 5

Alaska Airlines flights from Pittsburgh to Ontario

Our best Alaska Airlines deals on Pittsburgh to Ontario flight tickets
Alaska Airlines
Feb 11
PIT7:00 amPittsburgh
11h 08m
1 stop
ONT3:08 pmOntario
Feb 15
ONT6:00 amOntario
9h 10m
1 stop
PIT6:10 pmPittsburgh
$296
Find similar
Alaska Airlines
Mar 4
PIT7:10 pmPittsburgh
30h 27m
1 stop
ONT10:37 pmOntario
Mar 9
ONT6:00 amOntario
9h 10m
1 stop
PIT6:10 pmPittsburgh
$314
Find similar
Alaska Airlines
Jan 19
PIT7:00 amPittsburgh
19h 56m
1 stop
ONT11:56 pmOntario
Jan 24
ONT11:53 amOntario
27h 53m
1 stop
PIT6:46 pmPittsburgh
$324
Find similar

Delta flights from Pittsburgh to Ontario

Our best Delta deals on Pittsburgh to Ontario flight tickets
Delta
Oct 31
PIT1:48 pmPittsburgh
8h 31m
1 stop
ONT7:19 pmOntario
Nov 2
ONT7:05 amOntario
8h 53m
1 stop
PIT6:58 pmPittsburgh
$306
Find similar
Delta
Nov 27
PIT10:53 amPittsburgh
10h 11m
2 stops
ONT6:04 pmOntario
Dec 4
ONT10:25 pmOntario
7h 42m
1 stop
PIT9:07 amPittsburgh
$311
Find similar
Delta
Dec 3
PIT5:30 pmPittsburgh
9h 28m
1 stop
ONT11:58 pmOntario
Dec 10
ONT10:25 pmOntario
7h 42m
1 stop
PIT9:07 amPittsburgh
$315
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 October 14, 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 11/7

4:40 pm-9:57 pm

1 stop8h 17m

Ontario

Mon 11/10

6:00 am-3:45 pm

1 stop6h 45m

$208

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Fri 11/7

4:40 pm-9:57 pm

1 stop8h 17m

Ontario

Mon 11/10

1:46 pm-9:11 pm

2 stops28h 25m

$270

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 2/17

4:30 pm-9:19 pm

1 stop7h 49m

Ontario

Tue 2/24

6:00 am-3:45 pm

1 stop6h 45m

$292

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 2/11

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Sun 2/15

6:00 am-6:10 pm

1 stop9h 10m

$296

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 2/17

4:30 pm-9:19 pm

1 stop7h 49m

Ontario

Tue 2/24

6:00 am-6:51 pm

2 stops9h 51m

$298

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Tue 2/17

11:58 am-5:55 pm

2 stops8h 57m

Ontario

Tue 2/24

10:38 am-9:12 pm

2 stops7h 34m

$307

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Wed 3/4

7:10 pm-10:37 pm

1 stop30h 27m

Ontario

Mon 3/9

6:00 am-6:10 pm

1 stop9h 10m

$314

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 12/4

7:22 pm-11:55 pm

1 stop7h 33m

Ontario

Thu 12/11

12:55 pm-10:43 pm

1 stop6h 48m

$316

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Fri 11/7

6:15 am-12:25 pm

2 stops9h 10m

Ontario

Mon 11/10

5:50 am-6:25 pm

2 stops9h 35m

$401

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 12/18

2:15 pm-8:35 pm

2 stops9h 20m

Ontario

Mon 1/5

5:25 am-4:55 pm

2 stops8h 30m

$404

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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?

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.
Search flight deals

  • 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 33m.

  • 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
SouthwestPriceFrom $303Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
American AirlinesPriceFrom $306Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
United AirlinesPriceFrom $321Free CancellationRating
7.4
8,976 reviews
Search United Airlines flights

  • United Airlines Flights From Pittsburgh to Ontario

    United Airlines flies from Pittsburgh to Ontario around 6 times per week, with 8,976 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Pittsburgh to Ontario in the last 72 hours was $321 (round-trip), much lower than the average airfare cost of $506 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.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 11/13
Thu 11/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States