$188+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PIT
mai 18 — mai 251
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Pittsburgh with Cheapflights
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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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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 avril 18, 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 avril 18, 2026.
This Southwest deal was found by Cheapflights users on 4/14. 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.
mar. 6/211:55 pm
ONT
- PIT
1 stop7h 20m
Southwest
mar. 6/95:40 am
PIT
- ONT
1 stop6h 55m
Southwest
Deal found 4/14![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 4/13. 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.
sam. 5/912:07 pm
ONT
- PIT
1 stop9h 38m
Delta
sam. 5/165:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/13![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 4/14. 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.
mar. 6/211:59 pm
ONT
- PIT
2 stops10h 04m
American Airlines
mar. 6/93:30 pm
PIT
- ONT
1 stop10h 06m
American Airlines
Deal found 4/14![American Airlines logo]()
$392
This Delta deal was found by Cheapflights users on 4/16. 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.
jeu. 5/710:00 pm
ONT
- PIT
1 stop8h 02m
Delta
mer. 5/136:46 am
PIT
- ONT
1 stop7h 11m
Delta
Deal found 4/16![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 4/15. 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.
lun. 5/1110:00 pm
ONT
- PIT
2 stops10h 13m
Delta
sam. 5/165:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/15![Delta logo]()
$398
This Delta deal was found by Cheapflights users on 4/15. 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.
lun. 6/16:00 am
ONT
- PIT
1 stop7h 40m
Delta
sam. 6/64:45 pm
PIT
- ONT
1 stop8h 03m
Delta
Deal found 4/15![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 4/14. 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.
lun. 6/110:00 pm
ONT
- PIT
2 stops11h 16m
Delta
mer. 6/105:25 am
PIT
- ONT
1 stop8h 15m
Delta
Deal found 4/14![Delta logo]()
$404
This American Airlines deal was found by Cheapflights users on 4/17. 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.
mer. 5/2711:59 pm
ONT
- PIT
2 stops10h 06m
American Airlines
mer. 6/310:55 am
PIT
- ONT
2 stops10h 27m
American Airlines
Deal found 4/17![American Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 4/15. 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.
mar. 5/1210:26 pm
ONT
- PIT
1 stop8h 17m
American Airlines
jeu. 5/147:35 pm
PIT
- ONT
1 stop7h 11m
American Airlines
Deal found 4/15![American Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 4/15. 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.
dim. 5/1010:00 pm
ONT
- PIT
2 stops20h 25m
Delta
sam. 5/165:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/15![Delta logo]()
$431
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 avril 18, 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 avril 18, 2026.
This Southwest deal was found by Cheapflights users on 4/15. 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.
sam. 5/165:40 am
ONT
- PIT
1 stop6h 05m
Southwest
sam. 5/164:55 pm
PIT
- ONT
1 stop8h 05m
Southwest
Deal found 4/15![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 4/13. 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.
mer. 5/275:50 pm
ONT
- PIT
2 stops14h 23m
Delta
mer. 6/35:10 pm
PIT
- ONT
2 stops9h 24m
Delta
Deal found 4/13![Delta logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 4/13. 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.
mer. 5/204:03 pm
ONT
- PIT
1 stop10h 37m
Alaska Airlines
dim. 5/247:00 am
PIT
- ONT
1 stop11h 09m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$432
This American Airlines deal was found by Cheapflights users on 4/17. 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.
dim. 6/2111:59 pm
ONT
- PIT
1 stop7h 50m
American Airlines
jeu. 7/93:35 pm
PIT
- ONT
1 stop9h 59m
American Airlines
Deal found 4/17![American Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 4/14. 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.
sam. 5/305:00 am
ONT
- PIT
1 stop7h 16m
United Airlines
sam. 6/64:25 pm
PIT
- ONT
1 stop7h 17m
United Airlines
Deal found 4/14![United Airlines logo]()
$509
This Southwest deal was found by Cheapflights users on 4/15. 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.
jeu. 5/289:55 pm
ONT
- PIT
2 stops9h 05m
Southwest
lun. 6/13:55 pm
PIT
- ONT
2 stops10h 10m
Southwest
Deal found 4/15![Southwest logo]()
$448
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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.
ven. 9/253:09 pm
ONT
- PIT
1 stop11h 16m
Alaska Airlines
mar. 9/297:00 am
PIT
- ONT
1 stop10h 15m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$477
This Delta deal was found by Cheapflights users on 4/16. 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.
dim. 8/910:00 pm
ONT
- PIT
2 stops10h 11m
Delta
jeu. 8/205:30 pm
PIT
- ONT
2 stops9h 14m
Delta
Deal found 4/16![Delta logo]()
$521
This Southwest deal was found by Cheapflights users on 4/17. 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.
jeu. 6/1812:50 pm
ONT
- PIT
1 stop9h 10m
Southwest
mar. 7/76:25 pm
PIT
- ONT
1 stop6h 50m
Southwest
Deal found 4/17![Southwest logo]()
$477
This Southwest deal was found by Cheapflights users on 4/13. 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.
mar. 7/211:05 pm
ONT
- PIT
1 stop7h 05m
Southwest
mar. 7/286:45 am
PIT
- ONT
2 stops8h 55m
Southwest
Deal found 4/13![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 4/16. 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.
ven. 6/1912:50 pm
ONT
- PIT
1 stop9h 10m
Southwest
lun. 6/226:40 pm
PIT
- ONT
2 stops8h 25m
Southwest
Deal found 4/16![Southwest logo]()
$482
Last-minute flights from Ontario to PittsburghDiscover last-minute flight deals from Ontario to Pittsburgh. Data last updated avril 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pittsburgh. Data last updated avril 18, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/16. 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.
jeu. 5/710:00 pm
ONT
- PIT
1 stop8h 02m
Delta
mer. 5/136:46 am
PIT
- ONT
1 stop7h 11m
Delta
Deal found 4/16![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 4/13. 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.
sam. 5/912:07 pm
ONT
- PIT
1 stop9h 38m
Delta
sam. 5/165:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/13![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 4/15. 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.
dim. 5/1010:00 pm
ONT
- PIT
2 stops20h 25m
Delta
sam. 5/165:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/15![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 4/15. 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.
lun. 5/1110:00 pm
ONT
- PIT
2 stops10h 13m
Delta
sam. 5/165:40 pm
PIT
- ONT
1 stop8h 05m
Delta
Deal found 4/15![Delta logo]()
$398
This American Airlines deal was found by Cheapflights users on 4/15. 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.
mar. 5/1210:26 pm
ONT
- PIT
1 stop8h 17m
American Airlines
jeu. 5/147:35 pm
PIT
- ONT
1 stop7h 11m
American Airlines
Deal found 4/15![American Airlines logo]()
$417
This American Airlines deal was found by Cheapflights users on 4/14. 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.
mer. 5/2712:40 pm
ONT
- PIT
1 stop8h 17m
American Airlines
mer. 6/33:30 pm
PIT
- ONT
1 stop10h 06m
American Airlines
Deal found 4/14![American Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 4/16. 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.
mer. 5/276:45 am
ONT
- PIT
2 stops12h 53m
Delta
mer. 6/310:31 am
PIT
- ONT
2 stops8h 46m
Delta
Deal found 4/16![Delta logo]()
$397
This United Airlines deal was found by Cheapflights users on 4/15. 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.
jeu. 5/285:00 am
ONT
- PIT
1 stop7h 16m
United Airlines
lun. 6/15:02 pm
PIT
- ONT
1 stop7h 53m
United Airlines
Deal found 4/15![United Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 4/15. 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.
jeu. 5/281:55 pm
ONT
- PIT
1 stop7h 55m
Southwest
lun. 6/13:55 pm
PIT
- ONT
2 stops10h 10m
Southwest
Deal found 4/15![Southwest logo]()
$404
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 avril 18, 2026.
Search for one-way flight options from Ontario to Pittsburgh. Find affordable one-way fares based on user searches. Data last updated avril 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
jeu. 4/309:20 pm
ONT
- PIT
3 stops35h 29m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$188
This American Airlines deal was found by Cheapflights users on 4/14. 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.
sam. 5/1610:26 pm
ONT
- PIT
1 stop8h 17m
American Airlines
Deal found 4/14![American Airlines logo]()
$194
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
sam. 5/234:03 pm
ONT
- PIT
1 stop10h 37m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$200
This American Airlines deal was found by Cheapflights users on 4/17. 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.
lun. 6/87:12 pm
ONT
- PIT
2 stops10h 42m
American Airlines
Deal found 4/17![American Airlines logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
ven. 5/158:06 pm
ONT
- PIT
2 stops16h 57m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
jeu. 4/3012:59 am
ONT
- PIT
3 stops20h 00m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
sam. 5/168:27 pm
ONT
- PIT
3 stops37h 21m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
dim. 5/174:04 pm
ONT
- PIT
2 stops27h 35m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
lun. 4/275:33 pm
ONT
- PIT
3 stops27h 26m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$230
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 avril 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $387 (Southwest) |
One-way from | $188 (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 avril 18, 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
sam. 5/16
5:40 am-2:45 pm
1 stop6h 05m
Pittsburgh
sam. 5/16
4:55 pm-10:00 pm
1 stop8h 05m
$387
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
mer. 5/27
5:50 pm-11:13 am
2 stops14h 23m
Pittsburgh
mer. 6/3
5:10 pm-11:34 pm
2 stops9h 24m
$397
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
mer. 5/20
4:03 pm-5:40 am
1 stop10h 37m
Pittsburgh
dim. 5/24
7:00 am-3:09 pm
1 stop11h 09m
$432
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
jeu. 5/28
9:55 pm-10:00 am
2 stops9h 05m
Pittsburgh
lun. 6/1
3:55 pm-11:05 pm
2 stops10h 10m
$448
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
dim. 6/21
11:59 pm-10:49 am
1 stop7h 50m
Pittsburgh
jeu. 7/9
3:35 pm-10:34 pm
1 stop9h 59m
$477
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
ven. 9/25
3:09 pm-5:25 am
1 stop11h 16m
Pittsburgh
mar. 9/29
7:00 am-2:15 pm
1 stop10h 15m
$477
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
jeu. 6/18
12:50 pm-1:00 am
1 stop9h 10m
Pittsburgh
mar. 7/7
6:25 pm-10:15 pm
1 stop6h 50m
$477
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
mar. 7/21
1:05 pm-11:10 pm
1 stop7h 05m
Pittsburgh
mar. 7/28
6:45 am-12:40 pm
2 stops8h 55m
$482
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
ven. 6/19
12:50 pm-1:00 am
1 stop9h 10m
Pittsburgh
lun. 6/22
6:40 pm-12:05 am
2 stops8h 25m
$482
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
sam. 5/30
5:00 am-3:16 pm
1 stop7h 16m
Pittsburgh
sam. 6/6
4:25 pm-8:42 pm
1 stop7h 17m
$509
Showing 1-10 of 20 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?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to Pittsburgh. Price data was last updated on April 10, 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, 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 avril 18, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Ontario to Pittsburgh have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
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
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Ontario to Pittsburgh
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Complete your trip
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Ontario and Pittsburgh flights
Browse other Ontario and Pittsburgh flight options. Last updated on avril 18, 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 avril 18, 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 avril 18, 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 avril 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$285 | Average$414 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$435 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$300 | Average$397 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$310 | Average$442 | FlexibilityNo cancel fee | On-time69% |