$188+ Cheap flights from Pittsburgh to Ontario (PIT - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ONT
Oct 31 — Nov 71
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
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 Pittsburgh to Ontario
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Best
Last-minute
One-way
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 October 1, 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 October 1, 2026.
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:50 am -
1 stop8h 16m
Mon 11/26:00 am -
1 stop7h 51m
Deal found 9/27![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 9/27. 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 10/266:40 pm -
2 stops8h 15m
Mon 11/211:55 pm -
1 stop7h 45m
Deal found 9/27![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:06 pm -
1 stop7h 53m
Tue 10/276:00 am -
1 stop7h 07m
Deal found 9/26![United Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:03 pm -
1 stop7h 51m
Wed 10/287:07 am -
1 stop6h 47m
Deal found 9/30![Delta logo]()
$392
This American Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/307:12 am -
1 stop9h 18m
Sat 1/91:24 pm -
1 stop6h 34m
Deal found 9/30![American Airlines logo]()
$393
This Mytrip deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:08 am -
1 stop10h 05m
Thu 11/124:09 pm -
1 stop25h 27m
Deal found 9/30![Alaska Airlines logo]()
$402
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:10 pm -
1 stop9h 44m
Fri 10/3012:16 pm -
1 stop9h 20m
Deal found 9/27![Delta logo]()
$409
This American Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:43 pm -
1 stop8h 37m
Mon 11/2312:45 pm -
1 stop6h 51m
Deal found 9/29![American Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 9/27. 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 10/275:46 pm -
1 stop9h 09m
Tue 11/312:16 pm -
1 stop9h 30m
Deal found 9/27![Delta logo]()
$418
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 October 1, 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 October 1, 2026.
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:46 pm -
1 stop7h 25m
Fri 10/3012:16 pm -
1 stop9h 20m
Deal found 9/27![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:06 pm -
1 stop7h 53m
Tue 10/275:00 am -
2 stops8h 55m
Deal found 9/26![United Airlines logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:08 am -
1 stop10h 05m
Mon 11/236:00 am -
1 stop11h 42m
Deal found 9/25![Alaska Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 9/28. 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 12/105:50 am -
1 stop7h 20m
Sat 12/192:35 pm -
1 stop6h 45m
Deal found 9/28![Southwest logo]()
$462
This Delta deal was found by Cheapflights users on 9/27. 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 11/215:28 pm -
1 stop7h 48m
Wed 12/26:00 am -
1 stop7h 39m
Deal found 9/27![Delta logo]()
$432
This Southwest deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:40 am -
1 stop8h 00m
Tue 11/241:00 pm -
1 stop9h 55m
Deal found 9/25![Southwest logo]()
$492
This Delta deal was found by Cheapflights users on 9/27. 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 10/295:46 pm -
1 stop9h 09m
Wed 11/412:16 pm -
1 stop9h 30m
Deal found 9/27![Delta logo]()
$448
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:06 pm -
1 stop7h 53m
Sat 10/316:00 am -
1 stop7h 07m
Deal found 9/28![United Airlines logo]()
$502
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:18 pm -
1 stop8h 33m
Mon 10/261:32 pm -
1 stop6h 15m
Deal found 9/27![United Airlines logo]()
$507
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:28 pm -
1 stop7h 48m
Wed 11/2512:18 pm -
1 stop9h 28m
Deal found 9/25![Delta logo]()
$487
This United Airlines deal was found by Cheapflights users on 9/29. 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 11/117:00 am -
1 stop8h 29m
Mon 11/161:29 pm -
1 stop6h 18m
Deal found 9/29![United Airlines logo]()
$507
This Delta deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:50 am -
1 stop8h 16m
Mon 10/2611:15 pm -
1 stop7h 51m
Deal found 9/28![Delta logo]()
$491
Last-minute flights from Pittsburgh to OntarioDiscover last-minute flight deals from Pittsburgh to Ontario. Data last updated October 1, 2026 and is based on user searches.
Discover last-minute flight deals from Pittsburgh to Ontario. Data last updated October 1, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:06 pm -
1 stop7h 53m
Tue 10/276:00 am -
1 stop7h 07m
Deal found 9/26![United Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:03 pm -
1 stop7h 51m
Wed 10/287:07 am -
1 stop6h 47m
Deal found 9/30![Delta logo]()
$392
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:46 pm -
1 stop9h 09m
Thu 11/512:16 pm -
1 stop9h 30m
Deal found 9/27![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:10 pm -
1 stop9h 44m
Fri 10/3012:16 pm -
1 stop9h 20m
Deal found 9/27![Delta logo]()
$409
This American Airlines deal was found by Cheapflights users on 9/26. 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.
Fri 10/234:01 pm -
2 stops9h 52m
Tue 10/279:41 am -
2 stops10h 11m
Deal found 9/26![American Airlines logo]()
$442
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:50 am -
1 stop8h 16m
Mon 11/26:00 am -
1 stop7h 51m
Deal found 9/27![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:46 pm -
1 stop7h 25m
Sun 11/16:00 am -
1 stop7h 51m
Deal found 9/27![Delta logo]()
$432
This Southwest deal was found by Cheapflights users on 9/27. 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 10/266:40 pm -
2 stops8h 15m
Mon 11/211:55 pm -
1 stop7h 45m
Deal found 9/27![Southwest logo]()
$382
This Delta deal was found by Cheapflights users on 9/27. 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 10/275:46 pm -
1 stop9h 09m
Tue 11/312:16 pm -
1 stop9h 30m
Deal found 9/27![Delta logo]()
$418
This Delta deal was found by Cheapflights users on 9/27. 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 10/275:46 pm -
1 stop9h 09m
Fri 10/3012:16 pm -
1 stop9h 20m
Deal found 9/27![Delta logo]()
$434
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 October 1, 2026.
Search for one-way flight options from Pittsburgh to Ontario. Find affordable one-way fares based on user searches. Data last updated October 1, 2026.
This Delta deal was found by Cheapflights users on 9/30. 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 10/215:46 pm -
1 stop9h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Delta logo]()
$188
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:46 pm -
1 stop7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Delta logo]()
$189
This American Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:41 am -
1 stop7h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![American Airlines logo]()
$191
This Southwest deal was found by Cheapflights users on 9/28. 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 12/108:25 am -
2 stops9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$194
This United Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:06 pm -
1 stop7h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![United Airlines logo]()
$200
This American Airlines deal was found by Cheapflights users on 9/28. 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 12/17:00 am -
2 stops11h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![American Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/207:51 pm -
2 stops42h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$204
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:46 pm -
1 stop9h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Delta logo]()
$205
This Southwest deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:15 pm -
2 stops10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 12/15:25 pm -
3 stops31h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$222
This Mytrip deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:27 pm -
2 stops19h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$223
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 October 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $377 (Southwest) |
One-way from | $188 (Delta) |
Popular in | July |
Cheapest in | February |
Average price | $464 |
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 7,457,451 searches. Data last updated October 1, 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 Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Fri 10/23
2:15 pm-9:20 pm
2 stops10h 05m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$210
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Tue 12/22
5:45 am-11:50 am
2 stops9h 05m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$230
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Sat 11/21
5:28 pm-10:16 pm
1 stop7h 48m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$244
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Mon 10/19
5:48 pm-10:51 pm
1 stop8h 03m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$254
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Thu 10/22
5:18 pm-10:51 pm
1 stop8h 33m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$254
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Wed 10/14
6:05 am-8:25 pm
2 stops17h 20m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$313
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Sat 10/17
5:50 am-11:06 am
1 stop8h 16m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$314
Quickest round-trip
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Tue 10/13
1:50 pm-5:45 pm
1 stop6h 55m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$314
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Mon 11/23
1:01 pm-11:31 pm
2 stops13h 30m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$315
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Wed 12/23
1:04 pm-11:56 pm
2 stops13h 52m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$369
Showing 1-10 of 24 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 October.
| 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
What is the cheapest month to book a flight from Pittsburgh to Ontario?
Currently, February is the cheapest month in which you can book a flight from Pittsburgh to Ontario (average of $357). Flying from Pittsburgh to Ontario in July is currently the most expensive (average of $773). 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 Pittsburgh to Ontario?
Airfare is below average for this route at the moment.
Pittsburgh to Ontario flights typically cost between $454 and $630 in October.The cheapest round-trip price found within the last 5 days was $377 on Delta (Oct 24-Nov 2).
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 October 1, 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.
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
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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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 7,457,451 searches. Data last updated October 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$260 | 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$334 | Average$443 | FlexibilityNo cancel fee | On-time71% |