ONT - PIT

$114 Find Cheap Flights from Ontario to Pittsburgh

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Pittsburgh departing on 9/29. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Pittsburgh, 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 Ontario to Pittsburgh, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Ontario to Pittsburgh (ONT-PIT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Pittsburgh 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 Ontario to Pittsburgh

Thu, Oct 2 - Mon, Oct 6
Multiple Airlines Logo
6:00 am - 4:20 pmONT-PIT
7h 20m1 stop
Multiple Airlines Logo
5:17 pm - 8:42 pmPIT-ONT
30h 25m1 stop
$239Multiple Airlines
Find Deal
Thu, Oct 2 - Tue, Oct 7
Multiple Airlines Logo
6:00 am - 4:20 pmONT-PIT
7h 20m1 stop
Multiple Airlines Logo
5:17 pm - 8:42 pmPIT-ONT
30h 25m1 stop
$250Multiple Airlines
Find Deal
Wed, Oct 15 - Sat, Oct 18
Delta Logo
10:00 pm - 8:57 amONT-PIT
7h 57m1 stop
Delta Logo
5:30 pm - 9:20 pmPIT-ONT
6h 50m1 stop
$315Delta
Find Deal
Thu, Oct 30 - Wed, Nov 5
American Airlines Logo
1:00 pm - 10:57 pmONT-PIT
6h 57m1 stop
American Airlines Logo
3:04 pm - 7:41 pmPIT-ONT
7h 37m1 stop
$318American Airlines
Find Deal
Mon, Oct 20 - Sat, Nov 1
Delta Logo
10:00 pm - 8:57 amONT-PIT
7h 57m1 stop
Delta Logo
11:02 am - 9:20 pmPIT-ONT
13h 18m2 stops
$320Delta
Find Deal
Sat, Dec 6 - Sat, Jan 10
United Airlines Logo
1:34 pm - 10:51 pmONT-PIT
6h 17m1 stop
United Airlines Logo
4:15 pm - 8:58 pmPIT-ONT
7h 43m1 stop
$328United Airlines
Find Deal
Sat, Dec 6 - Sat, Jan 10
United Airlines Logo
6:41 pm - 9:28 amONT-PIT
11h 47m2 stops
United Airlines Logo
4:15 pm - 8:58 pmPIT-ONT
7h 43m1 stop
$334United Airlines
Find Deal
Sat, Dec 6 - Sat, Jan 10
American Airlines Logo
10:47 am - 12:35 amONT-PIT
10h 48m2 stops
American Airlines Logo
6:35 am - 1:48 pmPIT-ONT
10h 13m2 stops
$343American Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 15
Southwest Logo
5:30 am - 3:40 pmONT-PIT
7h 10m1 stop
Southwest Logo
7:10 pm - 10:45 pmPIT-ONT
6h 35m1 stop
$347Southwest
Find Deal
Thu, Nov 20 - Tue, Nov 25
Southwest Logo
8:30 am - 8:30 pmONT-PIT
9h 00m2 stops
Southwest Logo
10:20 am - 7:55 pmPIT-ONT
12h 35m2 stops
$424Southwest
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $315 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 18% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$239
Overall average: $482
Multiple Airlines
Thu 10/2Mon 10/6
ONT - PIT • 1 stop
Cheapest one-way
$114
Typical prices: $171-226
Multiple Airlines
Mon 9/29
ONT - PIT • 1 stop
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 Pittsburgh!
Booking Insights

KAYAK's insights & trends for Ontario to Pittsburgh flights

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

What’s the cheapest day of the week to fly from Ontario to Pittsburgh?

The average price of all round-trip flights from Ontario to Pittsburgh clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Pittsburgh on a Wednesday and more expensive on a Monday. On your return trip to Ontario, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Pittsburgh, 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 Ontario to Pittsburgh is August, where tickets cost $377 (return) on average. On the other hand, the most expensive months are February and June, where the average cost of round-trip tickets is $567 and $513 respectively.

How far in advance should I book a flight from Ontario to Pittsburgh?

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

To get a below average price on the flight from Ontario to Pittsburgh, you should book around 4 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$114
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Ontario to Pittsburgh

When to book flights from Ontario to Pittsburgh

Are your dates flexible? Find out the best times to travel from Ontario to Pittsburgh 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 Ontario to Pittsburgh

  • What is the cheapest flight from Ontario to Pittsburgh?

    In the last 3 days, the lowest price for a flight from Ontario to Pittsburgh was $114 for a one-way ticket and $239 for a round-trip.

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

    No, a passport isn't needed to fly from Ontario to Pittsburgh. However, local authorities might ask for an official ID.

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

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

  • Which airline alliances offer flights from Ontario to Pittsburgh?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Pittsburgh are Southwest and Delta. With an average price for the route of $435 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $467 and an overall rating of 7.9.

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

    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 Ontario to Pittsburgh.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Pittsburgh from Ontario 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 Ontario to Pittsburgh?

    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 Pittsburgh with an airline and back to Ontario with another airline. Booking your flights between Ontario and PIT 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 Ontario to Pittsburgh?

    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 Pittsburgh from Ontario 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 Ontario to Pittsburgh

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Pittsburgh. 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 Ontario to Pittsburgh? 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.
8.0
SouthwestOverall score based on 4242 reviews
7.0Food
8.0Comfort
8.1Boarding
8.6Crew
7.5Entertainment
Airline reviews

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

10.0 ExcellentRobert, Sep 2025SFO - LAS
Read more Southwest reviews

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Internet was a bit expensive and did not work ask that week otherwise a good flight

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Overall, a good experience. The food, however, was subpar. The breakfast was a joke.

I was late from Jacksonville, FL but the limited interaction I had with the Philly crew was great.

The delays and cancellations kept me stuck in Miami for an additional 24 hours, and the whole thing seemed extremely disorganized

Everything was great except British airways lost our luggage that was gate checked all the way through to Italy. No one knows currently where one is and the other one may be in route to Amsterdam to meet us but not sure. If you can Hale’s it would be awesome. The website is not helpful.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

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

Information on your arrival and departure airports

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