$136+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PIT
May 26 — Jun 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
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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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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 April 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 April 26, 2026.
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 6/21:10 pm
ONT
- PIT
1 stop6h 47m
American Airlines
Tue 6/96:00 am
PIT
- ONT
1 stop8h 50m
American Airlines
Deal found 4/21![American Airlines logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 9/13:05 pm
ONT
- PIT
1 stop11h 19m
Alaska Airlines
Wed 9/97:00 am
PIT
- ONT
1 stop10h 18m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 4/21. 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 5/1212:08 pm
ONT
- PIT
1 stop9h 37m
Delta
Wed 5/136:46 am
PIT
- ONT
1 stop7h 11m
Delta
Deal found 4/21![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 4/21. 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 6/41:18 pm
ONT
- PIT
1 stop6h 27m
United Airlines
Tue 6/94:04 pm
PIT
- ONT
1 stop9h 42m
United Airlines
Deal found 4/21![United Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/196:00 am
ONT
- PIT
1 stop7h 40m
Delta
Wed 5/205:10 pm
PIT
- ONT
2 stops9h 24m
Delta
Deal found 4/22![Delta logo]()
$340
This Delta deal was found by Cheapflights users on 4/22. 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.
Thu 6/45:50 pm
ONT
- PIT
2 stops13h 30m
Delta
Tue 6/91:57 pm
PIT
- ONT
1 stop7h 28m
Delta
Deal found 4/22![Delta logo]()
$342
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/1910:00 pm
ONT
- PIT
1 stop8h 02m
Delta
Sat 5/235:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/22![Delta logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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.
Sat 5/166:00 am
ONT
- PIT
1 stop8h 56m
Alaska Airlines
Tue 5/197:00 am
PIT
- ONT
1 stop11h 09m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 4/22. 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 5/166:00 am
ONT
- PIT
1 stop7h 40m
Delta
Wed 5/205:10 pm
PIT
- ONT
2 stops9h 24m
Delta
Deal found 4/22![Delta logo]()
$366
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 April 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 April 26, 2026.
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:30 am
ONT
- PIT
1 stop7h 35m
United Airlines
Tue 6/166:11 pm
PIT
- ONT
1 stop7h 35m
United Airlines
Deal found 4/23![United Airlines logo]()
$391
This Delta deal was found by Cheapflights users on 4/21. 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 5/126:00 am
ONT
- PIT
1 stop7h 40m
Delta
Thu 5/145:40 pm
PIT
- ONT
1 stop8h 54m
Delta
Deal found 4/21![Delta logo]()
$427
This Southwest deal was found by Cheapflights users on 4/25. 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 7/1511:30 am
ONT
- PIT
1 stop7h 50m
Southwest
Sun 7/195:35 pm
PIT
- ONT
1 stop9h 05m
Southwest
Deal found 4/25![Southwest logo]()
$477
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Wed 5/275:45 am
ONT
- PIT
1 stop7h 11m
United Airlines
Thu 5/284:04 pm
PIT
- ONT
1 stop9h 47m
United Airlines
Deal found 4/21![United Airlines logo]()
$447
This Southwest deal was found by Cheapflights users on 4/24. 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.
Tue 6/231:05 pm
ONT
- PIT
1 stop7h 05m
Southwest
Thu 6/256:40 pm
PIT
- ONT
1 stop6h 55m
Southwest
Deal found 4/24![Southwest logo]()
$477
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/221:18 pm
ONT
- PIT
1 stop6h 27m
United Airlines
Mon 5/256:16 pm
PIT
- ONT
1 stop7h 35m
United Airlines
Deal found 4/21![United Airlines logo]()
$455
This Delta deal was found by Cheapflights users on 4/21. 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.
Thu 5/1412:08 pm
ONT
- PIT
1 stop9h 37m
Delta
Wed 5/204:45 pm
PIT
- ONT
1 stop8h 03m
Delta
Deal found 4/21![Delta logo]()
$510
This Southwest deal was found by Cheapflights users on 4/23. 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.
Thu 6/182:30 pm
ONT
- PIT
1 stop7h 40m
Southwest
Mon 6/223:50 pm
PIT
- ONT
2 stops9h 45m
Southwest
Deal found 4/23![Southwest logo]()
$482
This United Airlines deal was found by Cheapflights users on 4/25. 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 5/275:45 am
ONT
- PIT
1 stop7h 11m
United Airlines
Sat 5/306:08 pm
PIT
- ONT
1 stop7h 43m
United Airlines
Deal found 4/25![United Airlines logo]()
$503
This Southwest deal was found by Cheapflights users on 4/21. 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.
Fri 5/2212:40 pm
ONT
- PIT
2 stops8h 25m
Southwest
Mon 5/251:35 pm
PIT
- ONT
2 stops10h 05m
Southwest
Deal found 4/21![Southwest logo]()
$554
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:59 pm
ONT
- PIT
2 stops11h 57m
United Airlines
Tue 5/195:58 pm
PIT
- ONT
1 stop7h 37m
United Airlines
Deal found 4/23![United Airlines logo]()
$526
Last-minute flights from Ontario to PittsburghDiscover last-minute flight deals from Ontario to Pittsburgh. Data last updated April 26, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pittsburgh. Data last updated April 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/21. 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 5/1212:08 pm
ONT
- PIT
1 stop9h 37m
Delta
Wed 5/136:46 am
PIT
- ONT
1 stop7h 11m
Delta
Deal found 4/21![Delta logo]()
$335
This Delta deal was found by Cheapflights users on 4/21. 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 5/1212:08 pm
ONT
- PIT
1 stop7h 14m
Delta
Sat 5/165:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/21![Delta logo]()
$387
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Tue 5/1210:59 am
ONT
- PIT
1 stop9h 18m
American Airlines
Sat 5/163:25 pm
PIT
- ONT
1 stop10h 15m
American Airlines
Deal found 4/23![American Airlines logo]()
$388
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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.
Sat 5/166:00 am
ONT
- PIT
1 stop8h 56m
Alaska Airlines
Tue 5/197:00 am
PIT
- ONT
1 stop11h 09m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 4/22. 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 5/166:00 am
ONT
- PIT
1 stop7h 40m
Delta
Wed 5/205:10 pm
PIT
- ONT
2 stops9h 24m
Delta
Deal found 4/22![Delta logo]()
$366
This Delta deal was found by Cheapflights users on 4/22. 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 5/1612:07 pm
ONT
- PIT
1 stop9h 38m
Delta
Sat 5/235:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/22![Delta logo]()
$378
This Delta deal was found by Cheapflights users on 4/22. 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.
Mon 5/1810:00 pm
ONT
- PIT
2 stops17h 34m
Delta
Wed 5/205:10 pm
PIT
- ONT
2 stops9h 24m
Delta
Deal found 4/22![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 4/22. 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.
Mon 5/1810:00 pm
ONT
- PIT
2 stops17h 34m
Delta
Sat 5/235:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/22![Delta logo]()
$381
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/196:00 am
ONT
- PIT
1 stop7h 40m
Delta
Wed 5/205:10 pm
PIT
- ONT
2 stops9h 24m
Delta
Deal found 4/22![Delta logo]()
$340
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/1910:00 pm
ONT
- PIT
1 stop8h 02m
Delta
Sat 5/235:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/22![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/1912:08 pm
ONT
- PIT
1 stop9h 37m
Delta
Tue 5/265:40 pm
PIT
- ONT
1 stop8h 54m
Delta
Deal found 4/22![Delta logo]()
$384
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 April 26, 2026.
Search for one-way flight options from Ontario to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated April 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:39 pm
ONT
- PIT
2 stops43h 13m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$136
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 6/34:03 pm
ONT
- PIT
1 stop10h 37m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$153
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Tue 6/97:12 pm
ONT
- PIT
2 stops10h 42m
American Airlines
Deal found 4/23![American Airlines logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 6/93:34 pm
ONT
- PIT
3 stops23h 06m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$164
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Wed 5/204:03 pm
ONT
- PIT
1 stop10h 37m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 6/103:34 pm
ONT
- PIT
2 stops44h 18m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Mon 5/188:06 pm
ONT
- PIT
3 stops42h 34m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/68:06 pm
ONT
- PIT
3 stops23h 01m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$190
This United Airlines deal was found by Cheapflights users on 4/25. 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 6/35:00 am
ONT
- PIT
1 stop7h 16m
United Airlines
Deal found 4/25![United Airlines logo]()
$194
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 April 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $305 (American Airlines) |
One-way from | $136 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $547 |
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 April 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 - PIT
ONTPIT
Ontario
Tue 6/9
6:30 am-5:05 pm
1 stop7h 35m
Pittsburgh
Tue 6/16
6:11 pm-10:46 pm
1 stop7h 35m
$391
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Tue 5/12
6:00 am-4:40 pm
1 stop7h 40m
Pittsburgh
Thu 5/14
5:40 pm-11:34 pm
1 stop8h 54m
$427
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 5/27
5:45 am-3:56 pm
1 stop7h 11m
Pittsburgh
Thu 5/28
4:04 pm-10:51 pm
1 stop9h 47m
$447
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Fri 5/22
1:18 pm-10:45 pm
1 stop6h 27m
Pittsburgh
Mon 5/25
6:16 pm-10:51 pm
1 stop7h 35m
$455
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 7/15
11:30 am-10:20 pm
1 stop7h 50m
Pittsburgh
Sun 7/19
5:35 pm-11:40 pm
1 stop9h 05m
$477
Quickest round-trip
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Tue 6/23
1:05 pm-11:10 pm
1 stop7h 05m
Pittsburgh
Thu 6/25
6:40 pm-10:35 pm
1 stop6h 55m
$477
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Thu 6/18
2:30 pm-1:10 am
1 stop7h 40m
Pittsburgh
Mon 6/22
3:50 pm-10:35 pm
2 stops9h 45m
$482
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 5/27
5:45 am-3:56 pm
1 stop7h 11m
Pittsburgh
Sat 5/30
6:08 pm-10:51 pm
1 stop7h 43m
$503
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Thu 5/14
12:08 pm-12:45 am
1 stop9h 37m
Pittsburgh
Wed 5/20
4:45 pm-9:48 pm
1 stop8h 03m
$510
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Sat 5/16
6:59 pm-9:56 am
2 stops11h 57m
Pittsburgh
Tue 5/19
5:58 pm-10:35 pm
1 stop7h 37m
$526
Showing 1-10 of 23 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 April.
| 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
How far ahead should I book a flight from Ontario to Pittsburgh?
To ensure you get the cheapest price possible for a flight from Ontario to Pittsburgh, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 April 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.
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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
Steubenville
Washington
Monroeville
Wexford
Belle Vernon
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Alternative routes for Ontario to Pittsburgh
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Ontario and Pittsburgh flights
Browse other Ontario and Pittsburgh flight options. Last updated on April 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 April 26, 2026.
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Explore flights to Pittsburgh departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 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 2,558,603 searches. Data last updated April 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$285 | Average$414 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$449 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$306 | Average$407 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$310 | Average$442 | FlexibilityNo cancel fee | On-time69% |