$171+ Cheap flights from Ontario to Pittsburgh (ONT - PIT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PIT
Oct 26 — Nov 21
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
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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 September 26, 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 September 26, 2026.
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Mon 10/261:32 pm -
1 stop6h 15m
Thu 10/295:10 pm -
1 stop7h 30m
Deal found 9/25![United Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 9/25. 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.
Sat 10/1712:16 pm -
1 stop9h 30m
Sat 10/245:50 am -
1 stop8h 16m
Deal found 9/25![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 9/25. 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.
Thu 10/226:00 am -
1 stop7h 51m
Mon 10/265:46 pm -
1 stop9h 09m
Deal found 9/25![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 9/22. 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.
Sat 10/175:45 am -
1 stop6h 55m
Tue 10/206:00 am -
2 stops9h 55m
Deal found 9/22![Southwest logo]()
$382
This American Airlines deal was found by Cheapflights users on 9/21. 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.
Wed 10/141:05 pm -
1 stop6h 51m
Mon 10/197:29 pm -
1 stop7h 23m
Deal found 9/21![American Airlines logo]()
$383
This Southwest deal was found by Cheapflights users on 9/23. 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 11/118:40 am -
2 stops9h 25m
Sat 12/56:10 am -
2 stops9h 15m
Deal found 9/23![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/276:59 am -
1 stop8h 20m
Fri 10/305:10 pm -
1 stop7h 30m
Deal found 9/22![United Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 9/25. 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 10/2212:43 pm -
1 stop7h 09m
Tue 10/278:19 am -
2 stops9h 57m
Deal found 9/25![American Airlines logo]()
$391
This Delta deal was found by Cheapflights users on 9/25. 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.
Fri 10/1611:19 pm -
1 stop8h 18m
Tue 10/205:46 pm -
1 stop9h 09m
Deal found 9/25![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 9/21. 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.
Mon 10/1211:15 pm -
1 stop7h 51m
Mon 10/195:50 am -
1 stop8h 16m
Deal found 9/21![Delta logo]()
$394
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 September 26, 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 September 26, 2026.
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/275:00 am -
2 stops10h 19m
Fri 10/305:10 pm -
1 stop7h 30m
Deal found 9/22![United Airlines logo]()
$394
This Southwest deal was found by Cheapflights users on 9/24. 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.
Fri 10/161:05 pm -
1 stop7h 45m
Mon 10/195:40 am -
1 stop7h 15m
Deal found 9/24![Southwest logo]()
$409
This KAYAK deal was found by Cheapflights users on 9/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:16 pm -
1 stop9h 30m
Fri 10/305:46 pm -
1 stop9h 09m
Deal found 9/24![Delta logo]()
$438
This Gotogate deal was found by Cheapflights users on 9/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:56 pm -
1 stop22h 39m
Wed 10/288:07 am -
2 stops35h 58m
Deal found 9/25![Alaska Airlines logo]()
$507
This Southwest deal was found by Cheapflights users on 9/24. 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.
Fri 10/301:05 pm -
1 stop7h 45m
Mon 11/26:25 pm -
2 stops8h 10m
Deal found 9/24![Southwest logo]()
$414
This Southwest deal was found by Cheapflights users on 9/24. 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 11/52:45 pm -
1 stop6h 00m
Sun 11/86:25 pm -
2 stops8h 15m
Deal found 9/24![Southwest logo]()
$437
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:07 am -
1 stop6h 57m
Wed 11/45:10 pm -
1 stop7h 30m
Deal found 9/21![United Airlines logo]()
$502
This Southwest deal was found by Cheapflights users on 9/22. 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.
Mon 11/234:00 pm -
1 stop6h 15m
Mon 11/303:10 pm -
2 stops8h 45m
Deal found 9/22![Southwest logo]()
$574
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Sun 10/116:00 am -
1 stop6h 49m
Thu 10/155:11 am -
2 stops10h 35m
Deal found 9/25![United Airlines logo]()
$632
Last-minute flights from Ontario to PittsburghDiscover last-minute flight deals from Ontario to Pittsburgh. Data last updated September 26, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pittsburgh. Data last updated September 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/21. 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.
Mon 10/1211:15 pm -
1 stop7h 51m
Mon 10/195:50 am -
1 stop8h 16m
Deal found 9/21![Delta logo]()
$394
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/1211:59 pm -
1 stop7h 45m
Tue 10/277:41 am -
2 stops10h 35m
Deal found 9/21![American Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 9/21. 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.
Wed 10/141:05 pm -
1 stop6h 51m
Mon 10/197:29 pm -
1 stop7h 23m
Deal found 9/21![American Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 9/25. 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.
Fri 10/1611:19 pm -
1 stop8h 18m
Tue 10/205:46 pm -
1 stop9h 09m
Deal found 9/25![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 9/25. 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.
Sat 10/1712:16 pm -
1 stop9h 30m
Sat 10/245:50 am -
1 stop8h 16m
Deal found 9/25![Delta logo]()
$376
This Southwest deal was found by Cheapflights users on 9/22. 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.
Sat 10/175:45 am -
1 stop6h 55m
Tue 10/206:00 am -
2 stops9h 55m
Deal found 9/22![Southwest logo]()
$382
This Delta deal was found by Cheapflights users on 9/23. 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.
Thu 10/226:00 am -
1 stop7h 51m
Tue 10/275:46 pm -
1 stop9h 09m
Deal found 9/23![Delta logo]()
$377
This American Airlines deal was found by Cheapflights users on 9/25. 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 10/2212:43 pm -
1 stop7h 09m
Tue 10/278:19 am -
2 stops9h 57m
Deal found 9/25![American Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Mon 10/261:32 pm -
1 stop6h 15m
Thu 10/295:10 pm -
1 stop7h 30m
Deal found 9/25![United Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/276:59 am -
1 stop8h 20m
Fri 10/305:10 pm -
1 stop7h 30m
Deal found 9/22![United Airlines logo]()
$388
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 September 26, 2026.
Search for one-way flight options from Ontario to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Tue 9/2911:45 am -
2 stops46h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Thu 10/228:35 pm -
2 stops43h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:15 am -
2 stops27h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:16 pm -
1 stop9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$189
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Sat 10/247:00 am -
2 stops10h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$194
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:19 pm -
1 stop8h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$205
This Flightnetwork deal was found by Cheapflights users on 9/25. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:00 am -
1 stop11h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Alaska Airlines logo]()
$207
This Mytrip deal was found by Cheapflights users on 9/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 am -
1 stop11h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Alaska Airlines logo]()
$209
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:00 am -
2 stops10h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Thu 10/2211:52 am -
3 stops29h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$211
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 September 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $372 (United Airlines) |
One-way from | $171 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $456 |
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 7,457,451 searches. Data last updated September 26, 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 Ontario - PIT Pittsburgh
ONTPIT
Ontario
Wed 10/14
12:16 pm-12:46 am
1 stop9h 30m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$205
OntarioPittsburgh
ONT Ontario - PIT Pittsburgh
ONTPIT
Ontario
Fri 10/30
5:00 am-6:19 pm
2 stops10h 19m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$210
OntarioPittsburgh
ONT Ontario - PIT Pittsburgh
ONTPIT
Ontario
Wed 12/2
6:00 am-11:40 pm
2 stops14h 40m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$244
OntarioPittsburgh
ONT Ontario - PIT Pittsburgh
ONTPIT
Ontario
Sat 10/17
7:00 am-4:57 pm
1 stop6h 57m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$254
OntarioPittsburgh
ONT Ontario - PIT Pittsburgh
ONTPIT
Ontario
Mon 11/9
6:00 am-4:07 pm
1 stop7h 07m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$254
OntarioPittsburgh
ONT Ontario - PIT Pittsburgh
ONTPIT
Ontario
Sat 11/7
7:00 am-8:47 pm
2 stops10h 47m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$259
OntarioPittsburgh
ONT Ontario - PIT Pittsburgh
ONTPIT
Ontario
Sun 11/8
11:05 pm-9:30 pm
2 stops19h 25m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$283
OntarioPittsburgh
ONT Ontario - PIT Pittsburgh
ONTPIT
Ontario
Sat 10/10
7:00 am-6:39 pm
1 stop8h 39m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$297
OntarioPittsburgh
ONT Ontario - PIT Pittsburgh
ONTPIT
Ontario
Tue 12/1
6:00 am-9:00 pm
2 stops12h 00m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$315
OntarioPittsburgh
ONT Ontario - PIT Pittsburgh
ONTPIT
Ontario
Thu 12/24
6:00 am-8:30 pm
1 stop11h 30m
Pittsburgh
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$323
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | 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 July is currently the most expensive (average of $597). 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?
Airfare is below average for this route at the moment.
Ontario to Pittsburgh flights typically cost between $405 and $628 in October.The cheapest round-trip price found within the last 5 days was $372 on United Airlines (Oct 26-Oct 29).
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 September 26, 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
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
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
Chester
Mars
Wexford
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Alternative routes for Ontario to Pittsburgh
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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
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Ontario and Pittsburgh flights
Browse other Ontario and Pittsburgh flight options. Last updated on September 26, 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 September 26, 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 September 26, 2026.
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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 7,457,451 searches. Data last updated September 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$285 | Average$414 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$310 | Average$507 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$316 | Average$449 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$340 | Average$457 | FlexibilityNo cancel fee | On-time63% |