$144+ Cheap flights from Pittsburgh to Ontario (PIT - ONT)
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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ONT
Aug 11 — Aug 181
Round-trip
1 adult, Economy
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Find cheap flights from Pittsburgh to Ontario 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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Cheapest flights from Pittsburgh to OntarioExplore the most affordable flight options available from Pittsburgh to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 12, 2026.
Explore the most affordable flight options available from Pittsburgh to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 12, 2026.
This American Airlines deal was found by Cheapflights users on 7/8. 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 9/226:24 pm
PIT
- ONT
1 stop7h 13m
American Airlines
Tue 9/2912:37 pm
ONT
- PIT
1 stop7h 22m
American Airlines
Deal found 7/8![American Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/254:57 pm
PIT
- ONT
1 stop6h 56m
United Airlines
Tue 9/19:01 am
ONT
- PIT
2 stops10h 44m
United Airlines
Deal found 7/7![United Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 7/8. 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 9/25:39 pm
PIT
- ONT
1 stop7h 44m
Delta
Wed 9/1612:17 pm
ONT
- PIT
1 stop9h 14m
Delta
Deal found 7/8![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 7/9. 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 8/256:00 am
PIT
- ONT
2 stops9h 40m
Southwest
Mon 8/312:00 pm
ONT
- PIT
1 stop6h 10m
Southwest
Deal found 7/9![Southwest logo]()
$302
This Delta deal was found by Cheapflights users on 7/7. 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 9/173:41 pm
PIT
- ONT
1 stop9h 45m
Delta
Mon 9/2110:00 pm
ONT
- PIT
1 stop9h 11m
Delta
Deal found 7/7![Delta logo]()
$305
This Southwest deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:50 am
PIT
- ONT
1 stop7h 30m
Southwest
Thu 8/1312:35 pm
ONT
- PIT
1 stop9h 05m
Southwest
Deal found 7/7![Southwest logo]()
$306
This Southwest deal was found by Cheapflights users on 7/9. 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 9/216:35 pm
PIT
- ONT
1 stop6h 35m
Southwest
Fri 9/258:00 am
ONT
- PIT
2 stops11h 05m
Southwest
Deal found 7/9![Southwest logo]()
$308
This Southwest deal was found by Cheapflights users on 7/8. 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 9/26:30 am
PIT
- ONT
2 stops9h 00m
Southwest
Wed 9/169:40 am
ONT
- PIT
1 stop8h 10m
Southwest
Deal found 7/8![Southwest logo]()
$311
This Southwest deal was found by Cheapflights users on 7/8. 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 9/175:50 am
PIT
- ONT
1 stop7h 30m
Southwest
Mon 9/215:15 am
ONT
- PIT
2 stops13h 50m
Southwest
Deal found 7/8![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 7/9. 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 8/195:39 pm
PIT
- ONT
1 stop8h 55m
Delta
Mon 8/2410:00 pm
ONT
- PIT
1 stop8h 05m
Delta
Deal found 7/9![Delta logo]()
$319
Best flights from Pittsburgh to OntarioDiscover carefully curated flight deals from Pittsburgh to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 12, 2026.
Discover carefully curated flight deals from Pittsburgh to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 12, 2026.
This Delta deal was found by Cheapflights users on 7/8. 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 9/25:39 pm
PIT
- ONT
1 stop7h 44m
Delta
Wed 9/1612:17 pm
ONT
- PIT
1 stop9h 14m
Delta
Deal found 7/8![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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 8/206:23 pm
PIT
- ONT
1 stop19h 41m
Alaska Airlines
Thu 8/2712:00 pm
ONT
- PIT
1 stop14h 24m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$355
This Southwest deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:30 pm
PIT
- ONT
1 stop6h 35m
Southwest
Thu 8/275:15 am
ONT
- PIT
2 stops12h 00m
Southwest
Deal found 7/11![Southwest logo]()
$366
This United Airlines deal was found by Cheapflights users on 7/8. 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 8/45:02 pm
PIT
- ONT
1 stop7h 53m
United Airlines
Fri 8/147:13 pm
ONT
- PIT
2 stops11h 36m
United Airlines
Deal found 7/8![United Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 7/9. 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 11/135:35 pm
PIT
- ONT
1 stop9h 13m
Delta
Mon 11/1610:59 pm
ONT
- PIT
1 stop7h 09m
Delta
Deal found 7/9![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 7/7. 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 8/155:39 pm
PIT
- ONT
1 stop7h 44m
Delta
Fri 8/2110:00 pm
ONT
- PIT
1 stop9h 01m
Delta
Deal found 7/7![Delta logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 9/117:02 am
PIT
- ONT
1 stop10h 14m
Alaska Airlines
Thu 9/176:02 am
ONT
- PIT
1 stop8h 28m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$391
This Southwest deal was found by Cheapflights users on 7/9. 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.
Sun 8/165:15 pm
PIT
- ONT
2 stops8h 05m
Southwest
Mon 8/1711:55 pm
ONT
- PIT
1 stop8h 25m
Southwest
Deal found 7/9![Southwest logo]()
$397
This Delta deal was found by Cheapflights users on 7/11. 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 10/295:35 pm
PIT
- ONT
1 stop9h 11m
Delta
Sat 10/3112:18 pm
ONT
- PIT
1 stop9h 18m
Delta
Deal found 7/11![Delta logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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 9/17:02 am
PIT
- ONT
1 stop10h 07m
Alaska Airlines
Sat 9/53:07 pm
ONT
- PIT
1 stop11h 17m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 7/8. 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 8/45:50 am
PIT
- ONT
1 stop7h 52m
Delta
Fri 8/710:00 pm
ONT
- PIT
1 stop9h 01m
Delta
Deal found 7/8![Delta logo]()
$358
This Delta deal was found by Cheapflights users on 7/9. 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.
Sun 8/305:50 am
PIT
- ONT
1 stop7h 52m
Delta
Sun 9/612:00 pm
ONT
- PIT
1 stop8h 34m
Delta
Deal found 7/9![Delta logo]()
$412
Last-minute flights from Pittsburgh to OntarioDiscover last-minute flight deals from Pittsburgh to Ontario. Data last updated July 12, 2026 and is based on user searches.
Discover last-minute flight deals from Pittsburgh to Ontario. Data last updated July 12, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/8. 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 8/45:50 am
PIT
- ONT
1 stop7h 52m
Delta
Fri 8/1410:00 pm
ONT
- PIT
1 stop9h 01m
Delta
Deal found 7/8![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 7/8. 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 8/45:50 am
PIT
- ONT
1 stop7h 52m
Delta
Mon 8/1710:00 pm
ONT
- PIT
1 stop8h 05m
Delta
Deal found 7/8![Delta logo]()
$344
This Southwest deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:50 am
PIT
- ONT
1 stop7h 30m
Southwest
Thu 8/1312:35 pm
ONT
- PIT
1 stop9h 05m
Southwest
Deal found 7/7![Southwest logo]()
$306
This Delta deal was found by Cheapflights users on 7/7. 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 8/155:39 pm
PIT
- ONT
1 stop7h 44m
Delta
Fri 8/2110:00 pm
ONT
- PIT
1 stop9h 01m
Delta
Deal found 7/7![Delta logo]()
$348
This Delta deal was found by Cheapflights users on 7/9. 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 8/195:39 pm
PIT
- ONT
1 stop8h 55m
Delta
Mon 8/2410:00 pm
ONT
- PIT
1 stop8h 05m
Delta
Deal found 7/9![Delta logo]()
$319
This Booking.com deal was found by Cheapflights users on 7/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:23 pm
PIT
- ONT
1 stop19h 41m
Alaska Airlines
Wed 8/2612:00 pm
ONT
- PIT
1 stop14h 24m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$305
This Booking.com deal was found by Cheapflights users on 7/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:23 pm
PIT
- ONT
1 stop19h 41m
Alaska Airlines
Thu 8/277:59 pm
ONT
- PIT
1 stop18h 26m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$328
This American Airlines deal was found by Cheapflights users on 7/7. 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 8/257:04 am
PIT
- ONT
1 stop9h 27m
American Airlines
Tue 9/110:29 am
ONT
- PIT
1 stop9h 19m
American Airlines
Deal found 7/7![American Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/254:57 pm
PIT
- ONT
1 stop6h 56m
United Airlines
Tue 9/19:01 am
ONT
- PIT
2 stops10h 44m
United Airlines
Deal found 7/7![United Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 7/9. 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 8/256:00 am
PIT
- ONT
2 stops9h 40m
Southwest
Mon 8/312:00 pm
ONT
- PIT
1 stop6h 10m
Southwest
Deal found 7/9![Southwest logo]()
$302
One-way flights from Pittsburgh to OntarioSearch for one-way flight options from Pittsburgh to Ontario. Find affordable one-way fares based on user searches. Data last updated July 12, 2026.
Search for one-way flight options from Pittsburgh to Ontario. Find affordable one-way fares based on user searches. Data last updated July 12, 2026.
This American Airlines deal was found by Cheapflights users on 7/8. 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 8/187:46 am
PIT
- ONT
1 stop7h 17m
American Airlines
Deal found 7/8![American Airlines logo]()
$144
This Southwest deal was found by Cheapflights users on 7/8. 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 8/182:00 pm
PIT
- ONT
2 stops9h 55m
Southwest
Deal found 7/8![Southwest logo]()
$149
This Booking.com deal was found by Cheapflights users on 7/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:23 pm
PIT
- ONT
1 stop19h 41m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$154
This Booking.com deal was found by Cheapflights users on 7/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:28 pm
PIT
- ONT
1 stop19h 48m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$158
This Southwest deal was found by Cheapflights users on 7/8. 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 10/131:50 pm
PIT
- ONT
2 stops9h 55m
Southwest
Deal found 7/8![Southwest logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/247:10 pm
PIT
- ONT
2 stops23h 44m
Frontier
Deal found 7/9![Frontier logo]()
$171
This Delta deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:39 pm
PIT
- ONT
1 stop7h 44m
Delta
Deal found 7/11![Delta logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/259:35 am
PIT
- ONT
2 stops31h 28m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$176
This Delta deal was found by Cheapflights users on 7/11. 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 8/185:39 pm
PIT
- ONT
1 stop8h 55m
Delta
Deal found 7/11![Delta logo]()
$178
This Booking.com deal was found by Cheapflights users on 7/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:23 pm
PIT
- ONT
1 stop19h 41m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$183
This Booking.com deal was found by Cheapflights users on 7/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:28 pm
PIT
- ONT
1 stop19h 48m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$185
Find flight deals from Pittsburgh to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Pittsburgh (PIT) to Ontario (ONT). 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 July 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $287 (American Airlines) |
One-way from | $144 (American Airlines) |
Popular in | April |
Cheapest in | September |
Average price | $501 |
Cheapflights Fare Finder
Customize your flight search to find flights from Pittsburgh to Ontario 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 July 12, 2026.
Use the filters below to find and compare flights from Pittsburgh to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Wed 9/2
5:39 pm-10:23 pm
1 stop7h 44m
Ontario
Wed 9/16
12:17 pm-12:31 am
1 stop9h 14m
$297
Quickest round-trip
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Fri 11/13
5:35 pm-11:48 pm
1 stop9h 13m
Ontario
Mon 11/16
10:59 pm-9:08 am
1 stop7h 09m
$297
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Sat 8/15
5:39 pm-10:23 pm
1 stop7h 44m
Ontario
Fri 8/21
10:00 pm-10:01 am
1 stop9h 01m
$348
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Thu 8/20
6:23 pm-11:04 am
1 stop19h 41m
Ontario
Thu 8/27
12:00 pm-5:24 am
1 stop14h 24m
$355
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Thu 10/29
5:35 pm-11:46 pm
1 stop9h 11m
Ontario
Sat 10/31
12:18 pm-12:36 am
1 stop9h 18m
$355
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Tue 8/4
5:50 am-10:42 am
1 stop7h 52m
Ontario
Fri 8/7
10:00 pm-10:01 am
1 stop9h 01m
$358
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Thu 8/20
6:30 pm-10:05 pm
1 stop6h 35m
Ontario
Thu 8/27
5:15 am-8:15 pm
2 stops12h 00m
$366
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Fri 9/11
7:02 am-2:16 pm
1 stop10h 14m
Ontario
Thu 9/17
6:02 am-5:30 pm
1 stop8h 28m
$391
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Sun 8/16
5:15 pm-10:20 pm
2 stops8h 05m
Ontario
Mon 8/17
11:55 pm-11:20 am
1 stop8h 25m
$397
PittsburghOntario
PIT - ONT
PITONT
Pittsburgh
Tue 9/1
7:02 am-2:09 pm
1 stop10h 07m
Ontario
Sat 9/5
3:07 pm-5:24 am
1 stop11h 17m
$410
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Pittsburgh to Ontario
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 Pittsburgh to Ontario in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Pittsburgh-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Pittsburgh-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Pittsburgh-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Pittsburgh-Ontario 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 Pittsburgh-Ontario 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 Pittsburgh to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Pittsburgh with our price prediction graph.
PIT-ONT
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 Pittsburgh to Ontario
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated July 12, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Pittsburgh to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Pittsburgh to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Pittsburgh to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Pittsburgh to Ontario by cabin class
Find flights from Pittsburgh to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 12, 2026.
Pittsburgh and Ontario flights
Browse other Pittsburgh and Ontario flight options. Last updated on July 12, 2026.
Other flights from Pittsburgh
Browse through other flights departing from Pittsburgh. Flights are based on user searches made on Cheapflights and were last updated on July 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Pittsburgh to Ontario
Discover the top 4 airlines that operate flights from Pittsburgh to Ontario. 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 July 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$406 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$303 | Average$476 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$305 | Average$454 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$314 | Average$443 | FlexibilityNo cancel fee | On-time71% |