ONT - PIT

$106 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 6/29. 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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Flights 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, Jul 3 - Mon, Jul 7
Frontier Logo
12:59 am - 4:40 pmONT-PIT
12h 41m1 stop
Frontier Logo
5:40 pm - 9:09 amPIT-ONT
18h 29m1 stop
$210Frontier
Find Deal
Wed, Sep 3 - Sat, Sep 6
Alaska Airlines Logo
3:04 pm - 6:42 pmONT-PIT
24h 38m1 stop
Alaska Airlines Logo
7:42 pm - 10:44 amPIT-ONT
18h 02m1 stop
$289Alaska Airlines
Find Deal
Wed, Sep 3 - Sat, Sep 6
American Airlines Logo
6:10 am - 5:29 pmONT-PIT
8h 19m1 stop
American Airlines Logo
11:53 am - 6:11 pmPIT-ONT
9h 18m2 stops
$294American Airlines
Find Deal
Tue, Jul 1 - Sat, Jul 5
Delta Logo
10:05 pm - 10:34 amONT-PIT
9h 29m1 stop
Delta Logo
5:35 am - 10:38 amPIT-ONT
8h 03m1 stop
$297Delta
Find Deal
Sat, Aug 9 - Sat, Aug 16
Delta Logo
11:40 am - 12:22 amONT-PIT
9h 42m1 stop
Delta Logo
6:00 am - 10:35 amPIT-ONT
7h 35m1 stop
$298Delta
Find Deal
Wed, Sep 3 - Sat, Sep 6
American Airlines Logo
8:15 am - 11:07 pmONT-PIT
11h 52m2 stops
American Airlines Logo
9:56 am - 6:54 pmPIT-ONT
11h 58m2 stops
$299American Airlines
Find Deal
Tue, Sep 9 - Thu, Sep 18
Southwest Logo
6:20 am - 5:45 pmONT-PIT
8h 25m2 stops
Southwest Logo
5:00 pm - 10:55 pmPIT-ONT
8h 55m2 stops
$337Southwest
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Fri, Aug 15 - Thu, Aug 21
United Airlines Logo
1:34 pm - 11:06 pmONT-PIT
6h 32m1 stop
United Airlines Logo
6:22 am - 12:13 pmPIT-ONT
8h 51m1 stop
$347United Airlines
Find Deal
Fri, Aug 15 - Thu, Aug 21
Southwest Logo
9:15 am - 9:35 pmONT-PIT
9h 20m2 stops
Southwest Logo
4:15 pm - 10:00 pmPIT-ONT
8h 45m2 stops
$357Southwest
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Wed, Jul 16 - Wed, Jul 30
United Airlines Logo
5:05 am - 4:53 pmONT-PIT
8h 48m2 stops
United Airlines Logo
8:18 am - 12:32 pmPIT-ONT
7h 14m1 stop
$384United Airlines
Find Deal
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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 $342 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $616 and $516 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonFebruary
High seasonOctober
Cheapest flight$106
Best time to beat the crowds but there is an average 36% increase 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 $106 for a one-way ticket and $210 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, Star Alliance, and SkyTeam 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 $438 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 8.0.

  • 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 5 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 4280 reviews
8.0Comfort
8.2Boarding
7.1Food
8.6Crew
7.6Entertainment
Airline reviews

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

10.0 ExcellentMichael, Jun 2025SMF - SEA
Read more Southwest reviews

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.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

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

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

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

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

The first flight was better in terms of the aircraft.

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

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.

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

The flight was just perfect! We left a few minutes early, had a smooth flight and fortunately had landed before the terrible accident that took off from North Philadelphia airport shortly thereafter.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

It was a redeye flight, so every passenger just wanted to sleep, but through the entire flight, the flight crew made announcements over the loudspeaker at maximum volume every few minutes making sleep impossible. For example: it’s 2am, and the crew decides to give an extremely detailed announcement about snacks and beverages for sale. And 3am is the perfect time to wake up everyone with a lengthy announcement about how to get a coffee refill and how to take advantage of new offer from frontier for a credit card.

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

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