$84+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PIT
Mar 5 — Mar 121
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
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 February 3, 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 February 3, 2026.
This Frontier deal was found by Cheapflights users on 1/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:00 am
ONT
- PIT
1 stop6h 59m
Frontier
Mon 2/234:14 pm
PIT
- ONT
1 stop10h 45m
Frontier
Deal found 1/31![Frontier logo]()
$219
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/136:00 am
ONT
- PIT
1 stop6h 59m
Frontier
Mon 2/234:14 pm
PIT
- ONT
1 stop10h 45m
Frontier
Deal found 2/1![Frontier logo]()
$229
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:10 am
ONT
- PIT
1 stop6h 09m
Frontier
Mon 3/24:14 pm
PIT
- ONT
1 stop10h 45m
Frontier
Deal found 2/1![Frontier logo]()
$239
This United Airlines deal was found by Cheapflights users on 2/3. 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 5/27:00 am
ONT
- PIT
1 stop6h 55m
United Airlines
Wed 5/64:50 pm
PIT
- ONT
1 stop8h 08m
United Airlines
Deal found 2/3![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 2/3. 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 3/311:58 pm
ONT
- PIT
2 stops10h 01m
American Airlines
Tue 3/102:10 pm
PIT
- ONT
2 stops10h 57m
American Airlines
Deal found 2/3![American Airlines logo]()
$267
This American Airlines deal was found by Cheapflights users on 2/2. 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 3/211:58 pm
ONT
- PIT
1 stop7h 46m
American Airlines
Wed 3/411:34 am
PIT
- ONT
1 stop10h 08m
American Airlines
Deal found 2/2![American Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 2/3. 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 4/86:00 am
ONT
- PIT
1 stop7h 27m
Delta
Sat 4/117:05 am
PIT
- ONT
1 stop7h 42m
Delta
Deal found 2/3![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 3/116:14 am
ONT
- PIT
1 stop9h 21m
Alaska Airlines
Sun 3/157:31 pm
PIT
- ONT
1 stop18h 37m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 2/3. 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 3/1212:57 pm
ONT
- PIT
1 stop8h 20m
Delta
Sat 3/142:00 pm
PIT
- ONT
1 stop10h 00m
Delta
Deal found 2/3![Delta logo]()
$306
This Delta deal was found by Cheapflights users on 2/3. 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 5/210:15 pm
ONT
- PIT
2 stops12h 07m
Delta
Wed 5/611:26 am
PIT
- ONT
2 stops12h 34m
Delta
Deal found 2/3![Delta logo]()
$307
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 February 3, 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 February 3, 2026.
This United Airlines deal was found by Cheapflights users on 2/3. 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 5/27:00 am
ONT
- PIT
1 stop6h 55m
United Airlines
Wed 5/64:50 pm
PIT
- ONT
1 stop8h 08m
United Airlines
Deal found 2/3![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 2/3. 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 3/311:58 pm
ONT
- PIT
2 stops10h 01m
American Airlines
Tue 3/102:10 pm
PIT
- ONT
2 stops10h 57m
American Airlines
Deal found 2/3![American Airlines logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 3/116:14 am
ONT
- PIT
1 stop9h 21m
Alaska Airlines
Sun 3/157:31 pm
PIT
- ONT
1 stop18h 37m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 2/3. 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 3/1212:57 pm
ONT
- PIT
1 stop8h 20m
Delta
Sat 3/142:00 pm
PIT
- ONT
1 stop10h 00m
Delta
Deal found 2/3![Delta logo]()
$306
This United Airlines deal was found by Cheapflights users on 2/3. 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 5/26:59 pm
ONT
- PIT
2 stops11h 32m
United Airlines
Tue 5/54:17 pm
PIT
- ONT
1 stop7h 19m
United Airlines
Deal found 2/3![United Airlines logo]()
$262
This United Airlines deal was found by Cheapflights users on 2/3. 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 3/31:45 pm
ONT
- PIT
1 stop6h 12m
United Airlines
Tue 3/1010:38 am
PIT
- ONT
2 stops13h 12m
United Airlines
Deal found 2/3![United Airlines logo]()
$262
This Delta deal was found by Cheapflights users on 2/3. 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 5/210:15 pm
ONT
- PIT
2 stops12h 07m
Delta
Wed 5/611:26 am
PIT
- ONT
2 stops12h 34m
Delta
Deal found 2/3![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 3/56:14 am
ONT
- PIT
1 stop9h 21m
Alaska Airlines
Sun 3/87:31 pm
PIT
- ONT
1 stop31h 01m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 1/31. 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.
Sat 2/2111:58 pm
ONT
- PIT
1 stop7h 46m
American Airlines
Sat 2/2810:34 am
PIT
- ONT
2 stops11h 08m
American Airlines
Deal found 1/31![American Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 2/2. 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 3/1110:25 pm
ONT
- PIT
2 stops12h 02m
Delta
Sun 3/157:05 am
PIT
- ONT
1 stop7h 42m
Delta
Deal found 2/2![Delta logo]()
$330
This Delta deal was found by Cheapflights users on 1/31. 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 2/216:00 am
ONT
- PIT
1 stop7h 08m
Delta
Sat 2/285:05 pm
PIT
- ONT
1 stop7h 39m
Delta
Deal found 1/31![Delta logo]()
$338
Last-minute flights from Ontario to PittsburghDiscover last-minute flight deals from Ontario to Pittsburgh. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pittsburgh. Data last updated February 3, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/136:00 am
ONT
- PIT
1 stop6h 59m
Frontier
Mon 2/234:14 pm
PIT
- ONT
1 stop10h 45m
Frontier
Deal found 2/1![Frontier logo]()
$229
This Frontier deal was found by Cheapflights users on 1/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:00 am
ONT
- PIT
1 stop6h 59m
Frontier
Mon 2/234:14 pm
PIT
- ONT
1 stop10h 45m
Frontier
Deal found 1/31![Frontier logo]()
$219
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:10 am
ONT
- PIT
1 stop6h 09m
Frontier
Mon 3/24:14 pm
PIT
- ONT
1 stop10h 45m
Frontier
Deal found 2/1![Frontier logo]()
$239
This Delta deal was found by Cheapflights users on 2/3. 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 2/2610:20 pm
ONT
- PIT
1 stop9h 20m
Delta
Wed 3/45:05 pm
PIT
- ONT
1 stop9h 44m
Delta
Deal found 2/3![Delta logo]()
$307
This American Airlines deal was found by Cheapflights users on 2/2. 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 3/211:58 pm
ONT
- PIT
1 stop7h 46m
American Airlines
Wed 3/411:34 am
PIT
- ONT
1 stop10h 08m
American Airlines
Deal found 2/2![American Airlines logo]()
$286
This United Airlines deal was found by Cheapflights users on 2/3. 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 3/35:00 am
ONT
- PIT
1 stop7h 17m
United Airlines
Tue 3/105:48 pm
PIT
- ONT
1 stop7h 30m
United Airlines
Deal found 2/3![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 2/3. 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 3/311:58 pm
ONT
- PIT
2 stops10h 01m
American Airlines
Tue 3/102:10 pm
PIT
- ONT
2 stops10h 57m
American Airlines
Deal found 2/3![American Airlines logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 3/116:14 am
ONT
- PIT
1 stop9h 21m
Alaska Airlines
Sun 3/157:31 pm
PIT
- ONT
1 stop18h 37m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 2/3. 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 3/1212:57 pm
ONT
- PIT
1 stop8h 20m
Delta
Sat 3/142:00 pm
PIT
- ONT
1 stop10h 00m
Delta
Deal found 2/3![Delta logo]()
$306
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 February 3, 2026.
Search for one-way flight options from Ontario to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Frontier deal was found by Cheapflights users on 1/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:10 am
ONT
- PIT
1 stop6h 09m
Frontier
Deal found 1/31![Frontier logo]()
$84
This CheapOair deal was found by Cheapflights users on 2/3. 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.
Wed 3/46:14 am
ONT
- PIT
1 stop9h 21m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$119
This CheapOair deal was found by Cheapflights users on 2/3. 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 3/104:02 pm
ONT
- PIT
1 stop23h 33m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$124
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 2/256:14 am
ONT
- PIT
1 stop9h 21m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 2/243:22 pm
ONT
- PIT
2 stops29h 37m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 2/236:43 pm
ONT
- PIT
3 stops50h 16m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$133
This CheapOair deal was found by Cheapflights users on 2/3. 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.
Wed 4/223:26 pm
ONT
- PIT
1 stop23h 55m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$134
This Super.com deal was found by Cheapflights users on 2/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:00 am
ONT
- PIT
1 stop6h 19m
Frontier
Deal found 2/1![Frontier logo]()
$142
This Super.com deal was found by Cheapflights users on 2/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/136:00 am
ONT
- PIT
1 stop6h 59m
Frontier
Deal found 2/1![Frontier logo]()
$143
This Delta deal was found by Cheapflights users on 2/2. 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 2/2810:20 pm
ONT
- PIT
1 stop7h 49m
Delta
Deal found 2/2![Delta logo]()
$149
This Super.com deal was found by Cheapflights users on 2/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:10 am
ONT
- PIT
1 stop6h 09m
Frontier
Deal found 2/1![Frontier logo]()
$154
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 February 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $219 (Frontier) |
One-way from | $84 (Frontier) |
Popular in | June |
Cheapest in | December |
Average price | $472 |
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 February 3, 2026.
Use the filters below to find and compare flights from Ontario to Pittsburgh that are best for you.
Fly from
Ontario
Fly to
Pittsburgh
Route
Depart
Return
Price
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Sat 5/2
7:00 am-4:55 pm
1 stop6h 55m
Pittsburgh
Wed 5/6
4:50 pm-9:58 pm
1 stop8h 08m
$257
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Sat 5/2
6:59 pm-9:31 am
2 stops11h 32m
Pittsburgh
Tue 5/5
4:17 pm-8:36 pm
1 stop7h 19m
$262
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Tue 3/3
1:45 pm-10:57 pm
1 stop6h 12m
Pittsburgh
Tue 3/10
10:38 am-8:50 pm
2 stops13h 12m
$262
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Tue 3/3
11:58 pm-12:59 pm
2 stops10h 01m
Pittsburgh
Tue 3/10
2:10 pm-10:07 pm
2 stops10h 57m
$267
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 3/11
6:14 am-6:35 pm
1 stop9h 21m
Pittsburgh
Sun 3/15
7:31 pm-11:08 am
1 stop18h 37m
$305
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Thu 3/12
12:57 pm-12:17 am
1 stop8h 20m
Pittsburgh
Sat 3/14
2:00 pm-9:00 pm
1 stop10h 00m
$306
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Sat 5/2
10:15 pm-1:22 pm
2 stops12h 07m
Pittsburgh
Wed 5/6
11:26 am-9:00 pm
2 stops12h 34m
$307
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Wed 3/11
10:25 pm-1:27 pm
2 stops12h 02m
Pittsburgh
Sun 3/15
7:05 am-11:47 am
1 stop7h 42m
$330
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Sat 2/21
6:00 am-4:08 pm
1 stop7h 08m
Pittsburgh
Sat 2/28
5:05 pm-9:44 pm
1 stop7h 39m
$338
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Thu 3/5
6:14 am-6:35 pm
1 stop9h 21m
Pittsburgh
Sun 3/8
7:31 pm-11:32 pm
1 stop31h 01m
$343
Showing 1-10 of 21 results
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 February.
| 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?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to Pittsburgh. Price data was last updated on January 30, 2026.
To ensure you get the cheapest price possible for a flight from Ontario to Pittsburgh, you should look to book at least 67 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, July is the cheapest month in which you can book a flight from Ontario to Pittsburgh (average of $109). Flying from Ontario to Pittsburgh in January is currently the most expensive (average of $297). 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.
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 February 3, 2026.
See what other customers who have flown with Southwest, Delta, and United 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.
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Comfort
8.0
Crew
8.6
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
Steubenville
Washington
Monroeville
Wexford
Belle Vernon
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Ontario to Pittsburgh
See prices for flight routes from nearby airports that may be better suited for you.
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 February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$285 | Average$442 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$286 | Average$442 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$431 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$306 | Average$386 | FlexibilityNo cancel fee | On-time63% |