$154+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ONT
Oct 11 — Oct 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
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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Last-minute
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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 September 11, 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 September 11, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:10 pm -
1 stop7h 30m
Tue 11/37:00 am -
1 stop8h 19m
Deal found 9/10![United Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 9/9. 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 11/116:00 am -
1 stop8h 08m
Mon 11/1612:18 pm -
1 stop9h 28m
Deal found 9/9![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 9/8. 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.
Sat 10/171:34 pm -
1 stop8h 56m
Sat 10/246:00 am -
1 stop7h 51m
Deal found 9/8![Delta logo]()
$378
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:00 am -
1 stop7h 15m
Wed 10/289:15 am -
2 stops8h 05m
Deal found 9/10![Southwest logo]()
$382
This Booking.com deal was found by Cheapflights users on 9/8. 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.
Tue 9/296:28 pm -
1 stop19h 48m
Fri 10/23:14 pm -
1 stop11h 11m
Deal found 9/8![Alaska Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:29 pm -
1 stop7h 23m
Sat 10/171:05 pm -
1 stop6h 51m
Deal found 9/9![American Airlines logo]()
$395
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:29 pm -
1 stop7h 23m
Tue 10/131:05 pm -
1 stop6h 51m
Deal found 9/10![American Airlines logo]()
$408
This Booking.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/168:07 am -
1 stop12h 53m
Mon 10/1911:13 am -
1 stop30h 22m
Deal found 9/8![Alaska Airlines logo]()
$411
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/97:29 pm -
1 stop7h 23m
Mon 10/191:05 pm -
1 stop6h 51m
Deal found 9/8![American Airlines logo]()
$412
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 10/57:29 pm -
1 stop7h 23m
Fri 10/97:34 pm -
2 stops10h 02m
Deal found 9/7![American Airlines logo]()
$416
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:10 pm -
1 stop7h 30m
Sun 11/15:00 am -
1 stop6h 36m
Deal found 9/9![United Airlines logo]()
$427
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 September 11, 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 September 11, 2026.
This Southwest deal was found by Cheapflights users on 9/9. 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.
Thu 11/121:25 pm -
2 stops11h 30m
Tue 11/178:40 am -
2 stops9h 20m
Deal found 9/9![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 11/115:10 pm -
1 stop7h 30m
Sat 11/146:00 am -
1 stop7h 07m
Deal found 9/8![United Airlines logo]()
$482
This Delta deal was found by Cheapflights users on 9/8. 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.
Sat 11/73:10 pm -
1 stop7h 20m
Fri 11/2011:10 pm -
1 stop7h 47m
Deal found 9/8![Delta logo]()
$508
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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.
Mon 9/217:02 am -
1 stop10h 14m
Tue 9/293:14 pm -
1 stop11h 11m
Deal found 9/6![Alaska Airlines logo]()
$528
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:40 pm -
2 stops8h 15m
Tue 10/1310:55 am -
2 stops7h 15m
Deal found 9/10![Southwest logo]()
$549
This United Airlines deal was found by Cheapflights users on 9/6. 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 11/104:58 pm -
1 stop7h 42m
Wed 11/117:00 am -
1 stop6h 55m
Deal found 9/6![United Airlines logo]()
$554
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 9/267:02 am -
1 stop10h 14m
Wed 9/306:02 am -
1 stop8h 28m
Deal found 9/11![Alaska Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:10 pm -
1 stop7h 30m
Fri 10/306:59 am -
1 stop8h 20m
Deal found 9/11![United Airlines logo]()
$554
This Delta deal was found by Cheapflights users on 9/8. 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 9/235:50 am -
1 stop8h 19m
Fri 9/2512:19 pm -
1 stop9h 12m
Deal found 9/8![Delta logo]()
$627
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:02 am -
1 stop10h 14m
Sat 9/263:14 pm -
1 stop11h 11m
Deal found 9/7![Alaska Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 9/255:06 pm -
1 stop7h 53m
Tue 9/291:22 pm -
1 stop6h 22m
Deal found 9/7![United Airlines logo]()
$643
Last-minute flights from Pittsburgh to OntarioDiscover last-minute flight deals from Pittsburgh to Ontario. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Pittsburgh to Ontario. Data last updated September 11, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 9/8. 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.
Tue 9/296:28 pm -
1 stop19h 48m
Fri 10/23:14 pm -
1 stop11h 11m
Deal found 9/8![Alaska Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 10/57:29 pm -
1 stop7h 23m
Fri 10/97:34 pm -
2 stops10h 02m
Deal found 9/7![American Airlines logo]()
$416
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:29 pm -
1 stop7h 23m
Tue 10/131:05 pm -
1 stop6h 51m
Deal found 9/10![American Airlines logo]()
$408
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/97:29 pm -
1 stop7h 23m
Mon 10/191:05 pm -
1 stop6h 51m
Deal found 9/8![American Airlines logo]()
$412
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:29 pm -
1 stop7h 23m
Sat 10/171:05 pm -
1 stop6h 51m
Deal found 9/10![American Airlines logo]()
$377
This Booking.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/168:07 am -
1 stop12h 53m
Mon 10/1911:13 am -
1 stop30h 22m
Deal found 9/8![Alaska Airlines logo]()
$411
This Delta deal was found by Cheapflights users on 9/8. 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.
Sat 10/171:34 pm -
1 stop8h 56m
Sat 10/246:00 am -
1 stop7h 51m
Deal found 9/8![Delta logo]()
$378
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:00 am -
1 stop7h 15m
Wed 10/289:15 am -
2 stops8h 05m
Deal found 9/10![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:10 pm -
1 stop7h 30m
Tue 11/37:00 am -
1 stop8h 19m
Deal found 9/10![United Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:10 pm -
1 stop7h 30m
Sun 11/15:00 am -
1 stop6h 36m
Deal found 9/9![United Airlines logo]()
$427
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 September 11, 2026.
Search for one-way flight options from Pittsburgh to Ontario. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 10/52:32 pm -
2 stops45h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$154
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:06 pm -
1 stop7h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$184
This Delta deal was found by Cheapflights users on 9/9. 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.
Tue 10/65:46 pm -
1 stop9h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$189
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/102:11 pm -
2 stops11h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$194
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 10/55:40 pm -
1 stop7h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$206
This Booking.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/238:07 am -
1 stop12h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Alaska Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/58:54 pm -
3 stops40h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$214
This Southwest deal was found by Cheapflights users on 9/7. 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.
Tue 10/65:25 pm -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Southwest logo]()
$225
This Booking.com deal was found by Cheapflights users on 9/6. 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.
Wed 10/148:07 am -
1 stop12h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Alaska Airlines logo]()
$230
This Priceline deal was found by Cheapflights users on 9/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:08 am -
1 stop10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Alaska Airlines logo]()
$235
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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $372 (United Airlines) |
One-way from | $154 (Kiwi.com) |
Popular in | July |
Cheapest in | September |
Average price | $337 |
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 September 11, 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
Tue 10/6
2:42 pm-4:59 pm
2 stops29h 17m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$154
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Sat 10/10
2:11 pm-10:51 pm
2 stops11h 40m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$194
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Mon 10/5
5:06 pm-9:59 pm
1 stop7h 53m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$220
Quickest round-trip
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Tue 10/6
5:25 pm-9:25 pm
1 stop7h 00m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$225
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Tue 10/27
5:46 pm-11:55 pm
1 stop9h 09m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$225
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Wed 10/14
8:07 am-6:00 pm
1 stop12h 53m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$230
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Sat 10/3
5:06 pm-9:59 pm
1 stop7h 53m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$239
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Tue 10/6
6:00 am-6:00 pm
2 stops15h 00m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$244
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Fri 10/16
1:02 pm-11:42 pm
2 stops13h 40m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$261
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Wed 10/14
5:06 pm-9:59 pm
1 stop7h 53m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$275
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 September.
| 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, September is the cheapest month in which you can book a flight from Pittsburgh to Ontario (average of $337). 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.
What is the cheapest time of day to fly from PIT to ONT?
Find hourly flight availability from Pittsburgh to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pittsburgh to Ontario as you normally would.
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 September 11, 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.
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
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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 September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$467 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$303 | Average$476 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$305 | Average$448 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$314 | Average$416 | FlexibilityNo cancel fee | On-time71% |