$166+ Cheap flights from Ontario to Pittsburgh (ONT - PIT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PIT
Jul 9 — Jul 161
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Pittsburgh with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Pittsburgh
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Best
Last-minute
One-way
Cheapest flights from Ontario to PittsburghExplore the most affordable flight options available from Ontario to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.
Explore the most affordable flight options available from Ontario to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:59 pm
ONT
- PIT
1 stop7h 09m
Delta
Fri 11/61:50 pm
PIT
- ONT
1 stop7h 28m
Delta
Deal found 6/8![Delta logo]()
$369
This Southwest deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:30 pm
ONT
- PIT
1 stop6h 50m
Southwest
Sun 8/167:05 pm
PIT
- ONT
1 stop6h 45m
Southwest
Deal found 6/7![Southwest logo]()
$392
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:10 am
ONT
- PIT
1 stop8h 00m
United Airlines
Wed 7/155:02 pm
PIT
- ONT
1 stop7h 53m
United Airlines
Deal found 6/5![United Airlines logo]()
$395
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:50 am
ONT
- PIT
1 stop6h 30m
Southwest
Tue 7/76:30 am
PIT
- ONT
2 stops9h 10m
Southwest
Deal found 6/8![Southwest logo]()
$400
This CheapOair deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:12 pm
ONT
- PIT
1 stop14h 13m
Alaska Airlines
Mon 9/287:02 am
PIT
- ONT
1 stop10h 14m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$401
This Travelocity deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:14 pm
ONT
- PIT
1 stop11h 11m
Alaska Airlines
Mon 9/286:28 pm
PIT
- ONT
1 stop19h 48m
Alaska Airlines
Deal found 6/5![Alaska Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:40 am
ONT
- PIT
1 stop7h 00m
Southwest
Mon 9/282:45 pm
PIT
- ONT
2 stops8h 55m
Southwest
Deal found 6/5![Southwest logo]()
$415
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:15 pm
ONT
- PIT
2 stops11h 15m
American Airlines
Tue 7/216:01 am
PIT
- ONT
2 stops9h 01m
American Airlines
Deal found 6/4![American Airlines logo]()
$416
This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:59 pm
ONT
- PIT
1 stop7h 49m
American Airlines
Fri 11/68:15 am
PIT
- ONT
2 stops10h 46m
American Airlines
Deal found 6/8![American Airlines logo]()
$422
Best flights from Ontario to PittsburghDiscover carefully curated flight deals from Ontario to Pittsburgh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 9, 2026.
Discover carefully curated flight deals from Ontario to Pittsburgh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 9, 2026.
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2211:48 am
ONT
- PIT
1 stop10h 02m
Delta
Wed 8/55:39 pm
PIT
- ONT
1 stop8h 55m
Delta
Deal found 6/4![Delta logo]()
$395
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:53 pm
ONT
- PIT
1 stop7h 15m
United Airlines
Wed 10/284:35 pm
PIT
- ONT
1 stop7h 46m
United Airlines
Deal found 6/8![United Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:40 am
ONT
- PIT
1 stop7h 00m
Southwest
Mon 9/282:45 pm
PIT
- ONT
2 stops8h 55m
Southwest
Deal found 6/5![Southwest logo]()
$415
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/811:48 am
ONT
- PIT
1 stop10h 02m
Delta
Wed 7/155:40 pm
PIT
- ONT
1 stop9h 08m
Delta
Deal found 6/4![Delta logo]()
$436
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/11:00 pm
ONT
- PIT
1 stop6h 37m
United Airlines
Sat 11/147:00 am
PIT
- ONT
2 stops8h 33m
United Airlines
Deal found 6/5![United Airlines logo]()
$456
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/310:00 pm
ONT
- PIT
1 stop9h 33m
Delta
Wed 7/85:40 pm
PIT
- ONT
1 stop9h 08m
Delta
Deal found 6/6![Delta logo]()
$466
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2211:48 am
ONT
- PIT
1 stop10h 02m
Delta
Tue 8/45:39 pm
PIT
- ONT
1 stop8h 55m
Delta
Deal found 6/4![Delta logo]()
$466
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:00 am
ONT
- PIT
1 stop7h 30m
Delta
Tue 8/115:39 pm
PIT
- ONT
1 stop8h 55m
Delta
Deal found 6/7![Delta logo]()
$474
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/811:48 am
ONT
- PIT
1 stop10h 02m
Delta
Fri 7/174:55 pm
PIT
- ONT
1 stop7h 55m
Delta
Deal found 6/4![Delta logo]()
$477
Last-minute flights from Ontario to PittsburghDiscover last-minute flight deals from Ontario to Pittsburgh. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pittsburgh. Data last updated June 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:00 am
ONT
- PIT
1 stop7h 35m
Delta
Tue 7/75:45 am
PIT
- ONT
1 stop7h 53m
Delta
Deal found 6/9![Delta logo]()
$466
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:50 am
ONT
- PIT
1 stop6h 30m
Southwest
Tue 7/76:30 am
PIT
- ONT
2 stops9h 10m
Southwest
Deal found 6/8![Southwest logo]()
$400
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:48 am
ONT
- PIT
1 stop10h 02m
Delta
Wed 7/155:40 pm
PIT
- ONT
1 stop9h 08m
Delta
Deal found 6/4![Delta logo]()
$436
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:10 am
ONT
- PIT
1 stop8h 00m
United Airlines
Wed 7/155:02 pm
PIT
- ONT
1 stop7h 53m
United Airlines
Deal found 6/5![United Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/811:48 am
ONT
- PIT
1 stop10h 02m
Delta
Wed 7/155:40 pm
PIT
- ONT
1 stop9h 08m
Delta
Deal found 6/5![Delta logo]()
$437
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:45 am
ONT
- PIT
2 stops10h 20m
Southwest
Wed 7/1512:45 pm
PIT
- ONT
2 stops9h 15m
Southwest
Deal found 6/5![Southwest logo]()
$446
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/910:00 pm
ONT
- PIT
1 stop8h 11m
Delta
Wed 7/155:40 pm
PIT
- ONT
1 stop9h 08m
Delta
Deal found 6/5![Delta logo]()
$441
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:15 pm
ONT
- PIT
2 stops11h 15m
American Airlines
Tue 7/216:01 am
PIT
- ONT
2 stops9h 01m
American Airlines
Deal found 6/4![American Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:30 pm
ONT
- PIT
1 stop7h 45m
Southwest
Sat 8/221:20 pm
PIT
- ONT
1 stop7h 00m
Southwest
Deal found 6/4![Southwest logo]()
$451
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3110:25 am
ONT
- PIT
1 stop8h 23m
American Airlines
Sat 8/2210:29 am
PIT
- ONT
2 stops10h 46m
American Airlines
Deal found 6/4![American Airlines logo]()
$456
One-way flights from Ontario to PittsburghSearch for one-way flight options from Ontario to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
Search for one-way flight options from Ontario to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
This Booking.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:07 pm
ONT
- PIT
1 stop11h 17m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$166
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:00 pm
ONT
- PIT
1 stop9h 52m
Delta
Deal found 6/9![Delta logo]()
$185
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:50 am
ONT
- PIT
1 stop10h 05m
Delta
Deal found 6/9![Delta logo]()
$198
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:45 am
ONT
- PIT
1 stop7h 11m
United Airlines
Deal found 6/8![United Airlines logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/209:32 am
ONT
- PIT
2 stops47h 32m
Frontier
Deal found 6/5![Frontier logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:40 pm
ONT
- PIT
2 stops44h 10m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$235
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2012:35 pm
ONT
- PIT
1 stop8h 19m
American Airlines
Deal found 6/5![American Airlines logo]()
$238
This CheapOair deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:26 pm
ONT
- PIT
1 stop9h 44m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:00 am
ONT
- PIT
1 stop6h 44m
United Airlines
Deal found 6/9![United Airlines logo]()
$240
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:00 am
ONT
- PIT
1 stop7h 38m
Delta
Deal found 6/4![Delta logo]()
$244
This CheapOair deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:50 pm
ONT
- PIT
1 stop20h 31m
JetBlue
Deal found 6/4![JetBlue logo]()
$249
Find flight deals from Ontario to Pittsburgh
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Pittsburgh (PIT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $369 (Delta) |
One-way from | $166 (Booking.com) |
Popular in | April |
Cheapest in | February |
Average price | $492 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Pittsburgh 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, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
Use the filters below to find and compare flights from Ontario to Pittsburgh that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 7/22
11:48 am-12:50 am
1 stop10h 02m
Pittsburgh
Wed 8/5
5:39 pm-11:34 pm
1 stop8h 55m
$395
Quickest round-trip
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Tue 10/27
6:53 pm-5:08 am
1 stop7h 15m
Pittsburgh
Wed 10/28
4:35 pm-9:21 pm
1 stop7h 46m
$410
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 9/23
7:40 am-5:40 pm
1 stop7h 00m
Pittsburgh
Mon 9/28
2:45 pm-8:40 pm
2 stops8h 55m
$415
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 7/8
11:48 am-12:50 am
1 stop10h 02m
Pittsburgh
Wed 7/15
5:40 pm-11:48 pm
1 stop9h 08m
$436
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Sun 11/1
1:00 pm-10:37 pm
1 stop6h 37m
Pittsburgh
Sat 11/14
7:00 am-12:33 pm
2 stops8h 33m
$456
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Fri 7/3
10:00 pm-10:33 am
1 stop9h 33m
Pittsburgh
Wed 7/8
5:40 pm-11:48 pm
1 stop9h 08m
$466
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 7/22
11:48 am-12:50 am
1 stop10h 02m
Pittsburgh
Tue 8/4
5:39 pm-11:34 pm
1 stop8h 55m
$466
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Sun 8/2
6:00 am-4:30 pm
1 stop7h 30m
Pittsburgh
Tue 8/11
5:39 pm-11:34 pm
1 stop8h 55m
$474
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 7/8
11:48 am-12:50 am
1 stop10h 02m
Pittsburgh
Fri 7/17
4:55 pm-9:50 pm
1 stop7h 55m
$477
Cheapest one-way
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 7/8
3:40 pm-2:50 pm
2 stops44h 10m
$235
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Ontario to Pittsburgh
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Pittsburgh in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Pittsburgh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Pittsburgh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Pittsburgh flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Pittsburgh flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Pittsburgh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Pittsburgh
Have a flexible travel schedule? Discover the best time to fly to Pittsburgh from Ontario with our price prediction graph.
ONT-PIT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Pittsburgh
What is the cheapest month to book a flight from Ontario to Pittsburgh?
Currently, February is the cheapest month in which you can book a flight from Ontario to Pittsburgh (average of $304). Flying from Ontario to Pittsburgh in April is currently the most expensive (average of $547). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Pittsburgh?
Reviews of airlines servicing Pittsburgh
Get insights into the airlines that provide service to Pittsburgh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pittsburgh. Reviews last updated June 9, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Ontario to Pittsburgh have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario to Pittsburgh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Pittsburgh?
Book flights to Pittsburgh if you plan to visit one of these locationsMars
Chester
Washington
Steubenville
Monroeville
Wexford
Belle Vernon
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Ontario and Pittsburgh flights
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Top 4 airlines flying from Ontario to Pittsburgh
Discover the top 4 airlines that operate flights from Ontario to Pittsburgh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$285 | Average$427 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$435 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$306 | Average$436 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$310 | Average$438 | FlexibilityNo cancel fee | On-time69% |