PIT - ONT

$174 Find Cheap Flights from Pittsburgh to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Pittsburgh to Ontario departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Pittsburgh to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Pittsburgh to Ontario, as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$347
Typical prices: $305-$337
American Airlines
Tue 9/22Tue 9/29
PIT - ONT • 1 stop
Cheapest one-way
$174
Typical prices: $152-$171
American Airlines
Tue 8/18
PIT - ONT • 1 stop
Top airlines
Cheapest • from $358 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Pittsburgh and Ontario. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $264 (round-trip)
Shortest trip • 7h 25m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Pittsburgh to Ontario (PIT-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Pittsburgh to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Pittsburgh to Ontario

Tue, Sep 22 - Tue, Sep 29
American Airlines Logo
7:43 am - 12:06 pm
PIT
-
ONT
7h 23m
1 stop
American Airlines Logo
10:25 am - 11:20 pm
ONT
-
PIT
9h 55m
1 stop
$347American Airlines
Sat, Aug 1 - Tue, Aug 11
Southwest Logo
6:20 pm - 10:05 pm
PIT
-
ONT
6h 45m
1 stop
Southwest Logo
9:40 am - 8:50 pm
ONT
-
PIT
8h 10m
1 stop
$358Southwest
Sat, Aug 1 - Tue, Aug 11
Southwest Logo
6:20 pm - 10:05 pm
PIT
-
ONT
6h 45m
1 stop
Southwest Logo
9:40 am - 9:30 pm
ONT
-
PIT
8h 50m
2 stops
$364Southwest
Wed, Jul 22 - Wed, Jul 29
Southwest Logo
5:30 pm - 11:05 pm
PIT
-
ONT
8h 35m
1 stop
Southwest Logo
5:15 am - 6:15 pm
ONT
-
PIT
10h 00m
1 stop
$368Southwest
Tue, Aug 25 - Wed, Aug 26
Alaska Airlines Logo
7:02 am - 2:09 pm
PIT
-
ONT
10h 07m
1 stop
Alaska Airlines Logo
6:02 am - 5:25 pm
ONT
-
PIT
8h 23m
1 stop
$369Alaska Airlines
Wed, Jul 22 - Wed, Jul 29
Southwest Logo
5:40 am - 11:30 am
PIT
-
ONT
8h 50m
2 stops
Southwest Logo
5:15 am - 6:15 pm
ONT
-
PIT
10h 00m
1 stop
$373Southwest
Sat, Aug 15 - Wed, Aug 26
Southwest Logo
7:00 am - 3:15 pm
PIT
-
ONT
11h 15m
2 stops
Southwest Logo
10:55 am - 11:05 pm
ONT
-
PIT
9h 10m
1 stop
$374Southwest
Thu, Oct 22 - Wed, Oct 28
Delta Logo
4:25 pm - 10:14 pm
PIT
-
ONT
8h 49m
1 stop
Delta Logo
12:00 pm - 9:49 pm
ONT
-
PIT
6h 49m
1 stop
$375Delta
Tue, Sep 22 - Tue, Sep 29
American Airlines Logo
6:24 pm - 10:37 pm
PIT
-
ONT
7h 13m
1 stop
American Airlines Logo
8:25 am - 9:16 pm
ONT
-
PIT
9h 51m
2 stops
$376American Airlines
Sat, Aug 15 - Wed, Aug 26
Southwest Logo
7:00 am - 3:15 pm
PIT
-
ONT
11h 15m
2 stops
Southwest Logo
9:40 am - 9:30 pm
ONT
-
PIT
8h 50m
2 stops
$379Southwest
Booking Insights

KAYAK's insights & trends for Pittsburgh to Ontario flights

Get data-powered insights and trends into flights from Pittsburgh to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Pittsburgh to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Pittsburgh to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Pittsburgh to Ontario is September, where tickets cost $305 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $856 and $516 respectively.

Good to know

Low seasonAugust
Cheapest flight$174
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Pittsburgh to Ontario

When to book flights from Pittsburgh to Ontario

Are your dates flexible? Find out the best times to travel from Pittsburgh to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Pittsburgh to Ontario

  • What is the cheapest flight from Pittsburgh to Ontario?

    In the last 5 days, the lowest price for a flight from Pittsburgh to Ontario was $174 for a one-way ticket and $358 for a round-trip.

  • Do I need a passport to fly between Pittsburgh and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Pittsburgh to Ontario?

    When flying out of Pittsburgh you will be using Pittsburgh. You will be landing at Ontario, also known as Ontario.

  • Which aircraft models fly most regularly from Pittsburgh to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Pittsburgh to Ontario?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Pittsburgh and Ontario, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Pittsburgh to Ontario, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Pittsburgh to Ontario are Southwest and Delta. With an average price for the route of $451 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $406 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Pittsburgh to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Pittsburgh to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pittsburgh to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Pittsburgh is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Pittsburgh to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Pittsburgh with another airline. Booking your flights between Pittsburgh and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pittsburgh to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Pittsburgh up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Pittsburgh to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Pittsburgh to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Pittsburgh to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4245 reviews
8.0Comfort
7.0Food
7.5Entertainment
8.1Boarding
8.6Crew
Airline reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

2.0 MediocreIrene, Jun 2026
DEN - SFO
Read more Southwest reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

I really wish that SW would ask anyone with a carry-on to wait while those who don’t have to access the overhead bins are boarded. Then, reverse that when the plane arrives. Those without the need to clog up the aisle retrieving their bags from the overhead bins wait for those exiting the plane without needing to clog up. The aisle.

The actual flight was great! The 3 hour delay not so much.

Southwest is a garbage airline and the people who fly it are garbage people.

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

The flight in it self was good. The delays looking for pilots was unexpected.

Boarding was easy. Plane wasn’t crowded. Plenty of space. Flight was on time. Crew was pleasant.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

We splurged and decided to fly first class. Seats were roomy. But flight crew arrived late to the airport. That delayed our flight. Most of the passengers had to try to make connections flights. I felt bad for them. We checked 4 bags. We got three from the baggage claim carousel. 4th one was lost. Delta online help wasn’t good. Baggage claim staff were sympathetic and nice but we waited around for almost 2 hours and it had t been found. They did find it several hours later and we had to drive back to airport to retrieve it. I won’t be splurging on 1st. Lass again anytime soon. I think we got worse service. I am also not a huge fan of delta but we have family in ATL so we don’t have a ton of choice. What should have been an easy flight turned into a stressful event due to flight crew tardiness and baggage mishandling.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Service was professional and quick. Premium economy seat was comfortable given the class

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

A three (3) hour flight should have meal service in First Class, not just potato chips!

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Seats suck. Only one drink service in three hours with the flight attendants being more attendant to their phones than the customer. Painful in the extreme.

Seat comfort was poor (no lumbar or lower back support).

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

They are always late and seats was also not having working charger

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Amazing I love American. I’ll never fly anyone else if I can help it.

The American flight was a connecting flight to an international flight. The international flight has a 2 check bag rule. Despite being informed of this, American would only check 1 bag and wanted 100 to check the second (basically a 3rd carry-on) to NYC. Subsequently tsa took a sealed container of maple syrup and a few other things that couldn't be in carry-on plus I had to lug around 3 pieces of luggage for the entire trip. The American reservation was made with the international and American actually checked the one piece the entire way to China. This is one of the reasons that I will avoid American airlines if possible in the future.

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

It was a good flight. Of course it was full, but it went well.

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

Everything you need to know for your flight from Pittsburgh to Ontario

Information on your arrival and departure airports