$178+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PIT
Jul 27 — Aug 31
Round-trip
1 adult, Economy
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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 27, 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 27, 2026.
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/225:45 am
ONT
- PIT
1 stop7h 11m
United Airlines
Wed 7/296:16 pm
PIT
- ONT
1 stop7h 35m
United Airlines
Deal found 6/26![United Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 6/25. 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 7/225:45 am
ONT
- PIT
1 stop7h 11m
United Airlines
Wed 8/56:50 am
PIT
- ONT
1 stop8h 22m
United Airlines
Deal found 6/25![United Airlines logo]()
$369
This Southwest deal was found by Cheapflights users on 6/24. 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 8/266:40 am
ONT
- PIT
2 stops8h 10m
Southwest
Tue 9/16:00 am
PIT
- ONT
1 stop7h 15m
Southwest
Deal found 6/24![Southwest logo]()
$374
This Southwest deal was found by Cheapflights users on 6/23. 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 8/199:40 am
ONT
- PIT
2 stops8h 05m
Southwest
Sat 8/226:50 am
PIT
- ONT
2 stops11h 25m
Southwest
Deal found 6/23![Southwest logo]()
$379
This Southwest deal was found by Cheapflights users on 6/24. 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.
Thu 8/202:00 pm
ONT
- PIT
1 stop6h 10m
Southwest
Tue 8/257:00 am
PIT
- ONT
1 stop8h 40m
Southwest
Deal found 6/24![Southwest logo]()
$386
This American Airlines deal was found by Cheapflights users on 6/26. 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 7/2212:35 pm
ONT
- PIT
1 stop8h 19m
American Airlines
Wed 7/296:01 am
PIT
- ONT
2 stops9h 01m
American Airlines
Deal found 6/26![American Airlines logo]()
$391
This Delta deal was found by Cheapflights users on 6/23. 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 6/3011:50 am
ONT
- PIT
1 stop10h 05m
Delta
Wed 7/15:45 pm
PIT
- ONT
1 stop9h 04m
Delta
Deal found 6/23![Delta logo]()
$395
This Southwest deal was found by Cheapflights users on 6/25. 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 7/221:20 pm
ONT
- PIT
1 stop8h 25m
Southwest
Wed 8/56:30 am
PIT
- ONT
2 stops9h 00m
Southwest
Deal found 6/25![Southwest logo]()
$399
This American Airlines deal was found by Cheapflights users on 6/23. 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 7/2212:35 pm
ONT
- PIT
1 stop8h 19m
American Airlines
Wed 8/510:30 am
PIT
- ONT
2 stops10h 45m
American Airlines
Deal found 6/23![American Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Thu 8/2012:33 pm
ONT
- PIT
1 stop7h 15m
American Airlines
Mon 8/247:04 am
PIT
- ONT
1 stop9h 27m
American Airlines
Deal found 6/25![American Airlines logo]()
$403
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 27, 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 27, 2026.
This Southwest deal was found by Cheapflights users on 6/23. 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 8/191:50 pm
ONT
- PIT
1 stop6h 15m
Southwest
Sat 8/223:20 pm
PIT
- ONT
1 stop8h 30m
Southwest
Deal found 6/23![Southwest logo]()
$369
This United Airlines deal was found by Cheapflights users on 6/24. 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 8/267:00 am
ONT
- PIT
1 stop7h 13m
United Airlines
Tue 9/12:11 pm
PIT
- ONT
2 stops9h 42m
United Airlines
Deal found 6/24![United Airlines logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:14 pm
ONT
- PIT
1 stop11h 11m
Alaska Airlines
Sun 9/277:02 am
PIT
- ONT
1 stop10h 14m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$423
This American Airlines deal was found by Cheapflights users on 6/21. 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 7/271:11 pm
ONT
- PIT
1 stop6h 40m
American Airlines
Fri 7/316:01 am
PIT
- ONT
1 stop8h 44m
American Airlines
Deal found 6/21![American Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/226:39 pm
ONT
- PIT
1 stop7h 40m
United Airlines
Wed 8/55:02 pm
PIT
- ONT
1 stop7h 53m
United Airlines
Deal found 6/24![United Airlines logo]()
$390
This Southwest deal was found by Cheapflights users on 6/25. 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.
Thu 8/205:15 am
ONT
- PIT
2 stops13h 50m
Southwest
Mon 8/245:50 am
PIT
- ONT
2 stops8h 35m
Southwest
Deal found 6/25![Southwest logo]()
$419
This Southwest deal was found by Cheapflights users on 6/25. 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.
Thu 8/65:15 am
ONT
- PIT
2 stops12h 00m
Southwest
Sun 8/96:25 am
PIT
- ONT
2 stops8h 20m
Southwest
Deal found 6/25![Southwest logo]()
$456
This United Airlines deal was found by Cheapflights users on 6/22. 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 11/36:00 am
ONT
- PIT
1 stop7h 04m
United Airlines
Wed 11/45:06 pm
PIT
- ONT
1 stop7h 44m
United Airlines
Deal found 6/22![United Airlines logo]()
$474
This United Airlines deal was found by Cheapflights users on 6/25. 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.
Fri 7/106:10 am
ONT
- PIT
1 stop8h 00m
United Airlines
Sat 7/186:16 pm
PIT
- ONT
1 stop7h 35m
United Airlines
Deal found 6/25![United Airlines logo]()
$483
This United Airlines deal was found by Cheapflights users on 6/25. 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 11/175:00 am
ONT
- PIT
2 stops10h 34m
United Airlines
Wed 11/185:15 pm
PIT
- ONT
1 stop8h 38m
United Airlines
Deal found 6/25![United Airlines logo]()
$484
Last-minute flights from Ontario to PittsburghDiscover last-minute flight deals from Ontario to Pittsburgh. Data last updated June 27, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pittsburgh. Data last updated June 27, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/23. 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 6/3011:50 am
ONT
- PIT
1 stop10h 05m
Delta
Fri 7/35:45 pm
PIT
- ONT
1 stop9h 04m
Delta
Deal found 6/23![Delta logo]()
$395
This Southwest deal was found by Cheapflights users on 6/22. 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.
Tue 7/212:50 pm
ONT
- PIT
1 stop6h 55m
Southwest
Wed 8/56:30 am
PIT
- ONT
2 stops9h 00m
Southwest
Deal found 6/22![Southwest logo]()
$374
This Delta deal was found by Cheapflights users on 6/21. 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 7/2110:00 pm
ONT
- PIT
1 stop8h 11m
Delta
Thu 7/305:40 pm
PIT
- ONT
1 stop9h 08m
Delta
Deal found 6/21![Delta logo]()
$423
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/225:45 am
ONT
- PIT
1 stop7h 11m
United Airlines
Wed 7/296:16 pm
PIT
- ONT
1 stop7h 35m
United Airlines
Deal found 6/26![United Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 6/25. 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 7/225:45 am
ONT
- PIT
1 stop7h 11m
United Airlines
Wed 8/56:50 am
PIT
- ONT
1 stop8h 22m
United Airlines
Deal found 6/25![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 6/26. 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 7/2212:35 pm
ONT
- PIT
1 stop8h 19m
American Airlines
Wed 7/296:01 am
PIT
- ONT
2 stops9h 01m
American Airlines
Deal found 6/26![American Airlines logo]()
$391
This Southwest deal was found by Cheapflights users on 6/25. 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 7/221:20 pm
ONT
- PIT
1 stop8h 25m
Southwest
Wed 8/56:30 am
PIT
- ONT
2 stops9h 00m
Southwest
Deal found 6/25![Southwest logo]()
$399
This American Airlines deal was found by Cheapflights users on 6/23. 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 7/2212:35 pm
ONT
- PIT
1 stop8h 19m
American Airlines
Wed 8/510:30 am
PIT
- ONT
2 stops10h 45m
American Airlines
Deal found 6/23![American Airlines logo]()
$402
This Delta deal was found by Cheapflights users on 6/21. 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 7/2210:00 pm
ONT
- PIT
1 stop8h 11m
Delta
Tue 7/2811:50 am
PIT
- ONT
1 stop9h 40m
Delta
Deal found 6/21![Delta logo]()
$404
This American Airlines deal was found by Cheapflights users on 6/22. 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 7/2211:59 pm
ONT
- PIT
1 stop7h 48m
American Airlines
Sat 8/16:01 am
PIT
- ONT
2 stops9h 01m
American Airlines
Deal found 6/22![American Airlines logo]()
$408
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 27, 2026.
Search for one-way flight options from Ontario to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
This Trip.com deal was found by Cheapflights users on 6/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:02 am
ONT
- PIT
1 stop11h 33m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$178
This Delta deal was found by Cheapflights users on 6/23. 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 9/196:00 am
ONT
- PIT
1 stop8h 04m
Delta
Deal found 6/23![Delta logo]()
$185
This Southwest deal was found by Cheapflights users on 6/23. 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.
Tue 9/229:40 am
ONT
- PIT
2 stops8h 50m
Southwest
Deal found 6/23![Southwest logo]()
$190
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:14 pm
ONT
- PIT
1 stop11h 11m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$202
This Southwest deal was found by Cheapflights users on 6/24. 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 8/129:40 am
ONT
- PIT
2 stops8h 05m
Southwest
Deal found 6/24![Southwest logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 8/1210:49 am
ONT
- PIT
3 stops33h 21m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$208
This Southwest deal was found by Cheapflights users on 6/21. 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.
Thu 8/135:15 am
ONT
- PIT
2 stops12h 00m
Southwest
Deal found 6/21![Southwest logo]()
$213
This American Airlines deal was found by Cheapflights users on 6/23. 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 7/227:15 pm
ONT
- PIT
2 stops11h 15m
American Airlines
Deal found 6/23![American Airlines logo]()
$214
This Delta deal was found by Cheapflights users on 6/25. 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 7/2810:00 pm
ONT
- PIT
1 stop8h 11m
Delta
Deal found 6/25![Delta logo]()
$220
This CheapOair deal was found by Cheapflights users on 6/23. 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 7/2711:51 pm
ONT
- PIT
1 stop20h 55m
JetBlue
Deal found 6/23![JetBlue logo]()
$228
This CheapOair deal was found by Cheapflights users on 6/21. 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.
Thu 8/611:59 pm
ONT
- PIT
1 stop20h 22m
JetBlue
Deal found 6/21![JetBlue logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Tue 9/229:49 pm
ONT
- PIT
3 stops46h 04m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$237
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 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $355 (United Airlines) |
One-way from | $178 (Trip.com) |
Popular in | April |
Cheapest in | February |
Average price | $526 |
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 27, 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
Quickest round-trip
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 8/19
1:50 pm-11:05 pm
1 stop6h 15m
Pittsburgh
Sat 8/22
3:20 pm-8:50 pm
1 stop8h 30m
$369
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 8/26
7:00 am-5:13 pm
1 stop7h 13m
Pittsburgh
Tue 9/1
2:11 pm-8:53 pm
2 stops9h 42m
$374
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 7/22
6:39 pm-5:19 am
1 stop7h 40m
Pittsburgh
Wed 8/5
5:02 pm-9:55 pm
1 stop7h 53m
$390
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Thu 8/20
5:15 am-10:05 pm
2 stops13h 50m
Pittsburgh
Mon 8/24
5:50 am-11:25 am
2 stops8h 35m
$419
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Sat 9/12
3:14 pm-5:25 am
1 stop11h 11m
Pittsburgh
Sun 9/27
7:02 am-2:16 pm
1 stop10h 14m
$423
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Thu 8/6
5:15 am-8:15 pm
2 stops12h 00m
Pittsburgh
Sun 8/9
6:25 am-11:45 am
2 stops8h 20m
$456
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Tue 11/3
6:00 am-4:04 pm
1 stop7h 04m
Pittsburgh
Wed 11/4
5:06 pm-9:50 pm
1 stop7h 44m
$474
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Mon 7/27
1:11 pm-10:51 pm
1 stop6h 40m
Pittsburgh
Fri 7/31
6:01 am-11:45 am
1 stop8h 44m
$477
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Fri 7/10
6:10 am-5:10 pm
1 stop8h 00m
Pittsburgh
Sat 7/18
6:16 pm-10:51 pm
1 stop7h 35m
$483
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Tue 11/17
5:00 am-6:34 pm
2 stops10h 34m
Pittsburgh
Wed 11/18
5:15 pm-10:53 pm
1 stop8h 38m
$484
Showing 1-10 of 21 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 27, 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.
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
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 locationsMonroeville
Washington
Mars
Chester
Steubenville
Wexford
Belle Vernon
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Alternative routes for Ontario to Pittsburgh
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Complete your trip
Complete your trip to Pittsburgh by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Pittsburgh by cabin class
Find flights from Ontario to Pittsburgh, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Pittsburgh flights
Browse other Ontario and Pittsburgh flight options. Last updated on June 27, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on June 27, 2026.
Other flights to Pittsburgh
Explore flights to Pittsburgh departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$285 | Average$420 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$435 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$306 | Average$437 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$310 | Average$475 | FlexibilityNo cancel fee | On-time69% |