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Cheap flights from Pittsburgh to Los Angeles from $178

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 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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
5:39 pm - 10:23 pmPIT  Pittsburgh-ONT Ontario
7h 44m1 stop Salt Lake City
Delta Logo
12:00 pm - 11:34 pmONT  Ontario-PIT Pittsburgh
8h 34m1 stop Atlanta Hartsfield-Jackson
$355Delta
Sat, Sep 5 - Sun, Sep 6
Southwest Logo
5:50 am - 10:20 amPIT  Pittsburgh-ONT Ontario
7h 30m1 stop Denver Intl
Southwest Logo
1:50 pm - 11:10 pmONT  Ontario-PIT Pittsburgh
6h 20m1 stop Denver Intl
$356Southwest
Fri, Sep 18 - Tue, Sep 22
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
$365American Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
8:32 am - 12:50 pmPIT  Pittsburgh-ONT Ontario
7h 18m1 stop Denver Intl
United Airlines Logo
6:08 am - 4:09 pmONT  Ontario-PIT Pittsburgh
7h 01m1 stop San Francisco
$373United Airlines
Sat, Sep 5 - Sat, Sep 12
Delta Logo
5:39 pm - 11:34 pmPIT  Pittsburgh-ONT Ontario
8h 55m1 stop Salt Lake City
Delta Logo
6:00 am - 4:43 pmONT  Ontario-PIT Pittsburgh
7h 43m1 stop Salt Lake City
$373Delta
Thu, Sep 3 - Sun, Sep 6
Southwest Logo
7:50 pm - 11:45 pmPIT  Pittsburgh-ONT Ontario
6h 55m1 stop Phoenix Sky Harbor Intl
Southwest Logo
5:55 am - 3:15 pmONT  Ontario-PIT Pittsburgh
6h 20m1 stop Phoenix Sky Harbor Intl
$373Southwest
Fri, Oct 30 - Wed, Nov 4
United Airlines Logo
4:09 pm - 10:35 pmPIT  Pittsburgh-ONT Ontario
9h 26m1 stop Chicago O'Hare Intl
United Airlines Logo
5:00 am - 5:14 pmONT  Ontario-PIT Pittsburgh
9h 14m2 stops Denver Intl Chicago O'Hare Intl
$378United Airlines
Sat, Sep 5 - Sat, Sep 12
American Airlines Logo
7:00 am - 11:47 amPIT  Pittsburgh-ONT Ontario
7h 47m1 stop Dallas/Fort Worth
American Airlines Logo
6:15 am - 9:30 pmONT  Ontario-PIT Pittsburgh
12h 15m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$383American 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
6:02 am - 5:30 pmONT  Ontario-PIT Pittsburgh
8h 28m1 stop Seattle/Tacoma Intl
$391Alaska Airlines
Sat, Sep 26 - Wed, Sep 30
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
$391Alaska Airlines
Thu, Sep 17 - Wed, Sep 23

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Delta flights from Pittsburgh to Ontario

Our best Delta deals on Pittsburgh to Ontario flight tickets
Delta
Sep 5
PIT5:39 pmPittsburgh
7h 44m
1 stop
ONT10:23 pmOntario
Sep 6
ONT12:00 pmOntario
8h 34m
1 stop
PIT11:34 pmPittsburgh
$355
Delta
Sep 3
PIT5:39 pmPittsburgh
8h 55m
1 stop
ONT11:34 pmOntario
Sep 6
ONT6:00 amOntario
7h 43m
1 stop
PIT4:43 pmPittsburgh
$373
Delta
Sep 19
PIT5:59 pmPittsburgh
7h 05m
1 stop
ONT10:04 pmOntario
Sep 22
ONT12:17 pmOntario
9h 14m
1 stop
PIT12:31 amPittsburgh
$391

Southwest flights from Pittsburgh to Ontario

Our best Southwest deals on Pittsburgh to Ontario flight tickets
Southwest
Sep 18
PIT5:50 amPittsburgh
7h 30m
1 stop
ONT10:20 amOntario
Sep 22
ONT1:50 pmOntario
6h 20m
1 stop
PIT11:10 pmPittsburgh
$356
Southwest
Oct 30
PIT6:40 pmPittsburgh
8h 15m
2 stops
ONT11:55 pmOntario
Nov 4
ONT8:40 amOntario
9h 10m
2 stops
PIT8:50 pmPittsburgh
$384
Southwest
Oct 28
PIT12:35 pmPittsburgh
10h 00m
2 stops
ONT7:35 pmOntario
Nov 3
ONT8:40 amOntario
9h 20m
2 stops
PIT9:00 pmPittsburgh
$401

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 10, 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

Sat 9/5

5:39 pm-10:23 pm

1 stop7h 44m

Ontario

Sun 9/6

12:00 pm-11:34 pm

1 stop8h 34m

$355

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Fri 9/18

5:50 am-10:20 am

1 stop7h 30m

Ontario

Tue 9/22

1:50 pm-11:10 pm

1 stop6h 20m

$356

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

$365

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Sat 9/5

8:32 am-12:50 pm

1 stop7h 18m

Ontario

Sat 9/12

6:08 am-4:09 pm

1 stop7h 01m

$373

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 9/3

5:39 pm-11:34 pm

1 stop8h 55m

Ontario

Sun 9/6

6:00 am-4:43 pm

1 stop7h 43m

$373
Quickest round-trip

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Fri 10/30

7:50 pm-11:45 pm

1 stop6h 55m

Ontario

Wed 11/4

5:55 am-3:15 pm

1 stop6h 20m

$373

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Sat 9/5

4:09 pm-10:35 pm

1 stop9h 26m

Ontario

Sat 9/12

5:00 am-5:14 pm

2 stops9h 14m

$378

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Tue 9/22

7:00 am-11:47 am

1 stop7h 47m

Ontario

Tue 9/29

6:15 am-9:30 pm

2 stops12h 15m

$383

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Sat 9/26

7:02 am-2:16 pm

1 stop10h 14m

Ontario

Wed 9/30

6:02 am-5:30 pm

1 stop8h 28m

$391

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Thu 9/17

7:02 am-2:16 pm

1 stop10h 14m

Ontario

Wed 9/23

3:14 pm-5:25 am

1 stop11h 11m

$391

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 $384 to $390.
The lowest price recently found on this route was $355.

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

6h 56m

Direct flights

None
The fastest flight from Pittsburgh to Ontario takes 6h 56m
There are no direct flights from Pittsburgh to Ontario. There are no popular flight routes from Pittsburgh to Ontario.
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
8,497 reviews
Search Delta flights
United AirlinesPriceFrom $303Free CancellationRating
7.4
10,095 reviews
Search United Airlines flights
SouthwestPriceFrom $305Free CancellationRating
8.0
4,218 reviews
Search Southwest flights
American AirlinesPriceFrom $314Free CancellationRating
7.1
11,897 reviews
Search American 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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