$148+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ONT
Sep 21 — Sep 281
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 August 22, 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 August 22, 2026.
This Delta deal was found by Cheapflights users on 8/22. 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 9/215:30 pm -
1 stop9h 17m
Tue 9/2912:17 pm -
1 stop9h 14m
Deal found 8/22![Delta logo]()
$337
This Booking.com deal was found by Cheapflights users on 8/21. 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 11/128:08 am -
1 stop10h 05m
Mon 11/1612:02 pm -
1 stop29h 34m
Deal found 8/21![Alaska Airlines logo]()
$353
This Booking.com deal was found by Cheapflights users on 8/21. 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 9/146:28 pm -
1 stop19h 48m
Thu 9/173:14 pm -
1 stop11h 11m
Deal found 8/21![Alaska Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/18. 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 11/25:10 pm -
1 stop7h 30m
Sat 12/56:53 pm -
1 stop7h 15m
Deal found 8/18![United Airlines logo]()
$372
This Priceline deal was found by Cheapflights users on 8/18. 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.
Tue 9/157:02 am -
1 stop10h 14m
Thu 9/173:14 pm -
1 stop11h 11m
Deal found 8/18![Alaska Airlines logo]()
$377
This American Airlines deal was found by Cheapflights users on 8/21. 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 9/267:43 am -
1 stop7h 20m
Sat 10/31:05 pm -
1 stop6h 27m
Deal found 8/21![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 8/18. 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 11/21:25 pm -
2 stops11h 30m
Sat 12/55:45 am -
1 stop7h 05m
Deal found 8/18![Southwest logo]()
$382
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/227:00 am -
1 stop7h 47m
Tue 9/298:25 am -
2 stops9h 40m
Deal found 8/17![American Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/187:06 am -
1 stop8h 06m
Sat 10/31:22 pm -
1 stop6h 22m
Deal found 8/19![United Airlines logo]()
$395
This American Airlines deal was found by Cheapflights users on 8/20. 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 10/68:00 am -
1 stop7h 14m
Sat 10/101:05 pm -
1 stop6h 51m
Deal found 8/20![American Airlines logo]()
$397
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 August 22, 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 August 22, 2026.
This Southwest deal was found by Cheapflights users on 8/18. 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 11/27:45 pm -
1 stop6h 50m
Sat 12/55:45 am -
1 stop7h 05m
Deal found 8/18![Southwest logo]()
$377
This Delta deal was found by Cheapflights users on 8/18. 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 10/25:40 pm -
1 stop7h 44m
Fri 10/912:16 pm -
1 stop9h 30m
Deal found 8/18![Delta logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/227:02 am -
1 stop10h 14m
Sun 9/277:59 pm -
1 stop18h 31m
Deal found 8/17![Alaska Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 8/20. 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 9/172:11 pm -
2 stops11h 40m
Mon 9/211:18 pm -
1 stop6h 27m
Deal found 8/20![United Airlines logo]()
$433
This Southwest deal was found by Cheapflights users on 8/20. 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 9/176:35 pm -
1 stop6h 40m
Mon 9/2111:55 pm -
1 stop8h 25m
Deal found 8/20![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:46 pm -
1 stop9h 09m
Mon 10/1211:15 pm -
1 stop7h 51m
Deal found 8/17![Delta logo]()
$428
This Southwest deal was found by Cheapflights users on 8/19. 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 9/256:30 pm -
1 stop6h 35m
Mon 9/2811:55 pm -
1 stop8h 25m
Deal found 8/19![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 8/20. 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 11/42:00 pm -
1 stop8h 30m
Sun 11/86:00 am -
1 stop7h 51m
Deal found 8/20![Delta logo]()
$432
This Southwest deal was found by Cheapflights users on 8/18. 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 11/21:25 pm -
2 stops11h 30m
Thu 12/38:40 am -
2 stops9h 10m
Deal found 8/18![Southwest logo]()
$405
This Southwest deal was found by Cheapflights users on 8/18. 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 10/85:40 am -
2 stops8h 45m
Wed 10/145:40 am -
2 stops8h 50m
Deal found 8/18![Southwest logo]()
$405
This Southwest deal was found by Cheapflights users on 8/18. 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 10/95:40 am -
2 stops8h 45m
Mon 10/1212:40 pm -
1 stop8h 00m
Deal found 8/18![Southwest logo]()
$437
Last-minute flights from Pittsburgh to OntarioDiscover last-minute flight deals from Pittsburgh to Ontario. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from Pittsburgh to Ontario. Data last updated August 22, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 8/21. 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 9/146:28 pm -
1 stop19h 48m
Thu 9/173:14 pm -
1 stop11h 11m
Deal found 8/21![Alaska Airlines logo]()
$369
This Priceline deal was found by Cheapflights users on 8/18. 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.
Tue 9/157:02 am -
1 stop10h 14m
Thu 9/173:14 pm -
1 stop11h 11m
Deal found 8/18![Alaska Airlines logo]()
$377
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/172:11 pm -
2 stops11h 40m
Mon 9/211:18 pm -
1 stop6h 27m
Deal found 8/19![United Airlines logo]()
$405
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/187:06 am -
1 stop8h 06m
Sat 10/31:22 pm -
1 stop6h 22m
Deal found 8/19![United Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/192:11 pm -
2 stops9h 42m
Sat 10/36:00 am -
1 stop6h 49m
Deal found 8/19![United Airlines logo]()
$382
This Delta deal was found by Cheapflights users on 8/22. 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 9/215:30 pm -
1 stop9h 17m
Tue 9/2912:17 pm -
1 stop9h 14m
Deal found 8/22![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/227:00 am -
1 stop7h 47m
Tue 9/298:25 am -
2 stops9h 40m
Deal found 8/17![American Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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
Sun 9/277:59 pm -
1 stop18h 31m
Deal found 8/21![Alaska Airlines logo]()
$412
This American Airlines deal was found by Cheapflights users on 8/21. 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 -
1 stop7h 13m
Sun 9/277:11 pm -
2 stops11h 37m
Deal found 8/21![American Airlines logo]()
$417
This American Airlines deal was found by Cheapflights users on 8/21. 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 9/267:43 am -
1 stop7h 20m
Sat 10/31:05 pm -
1 stop6h 27m
Deal found 8/21![American Airlines logo]()
$379
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 August 22, 2026.
Search for one-way flight options from Pittsburgh to Ontario. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Sun 9/137:04 pm -
2 stops42h 26m
Deal found 8/18![Multiple Airlines logo]()
$148
This Delta deal was found by Cheapflights users on 8/21. 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
Deal found 8/21![Delta logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Thu 9/107:04 pm -
2 stops42h 26m
Deal found 8/18![Multiple Airlines logo]()
$171
This Southwest deal was found by Cheapflights users on 8/21. 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.
Sat 12/126:10 am -
2 stops9h 40m
Deal found 8/21![Southwest logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Fri 9/258:39 pm -
2 stops30h 08m
Deal found 8/19![Multiple Airlines logo]()
$179
This United Airlines deal was found by Cheapflights users on 8/21. 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 12/125:02 pm -
Nonstop7h 57m
Deal found 8/21![United Airlines logo]()
$180
This Delta deal was found by Cheapflights users on 8/21. 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 9/185:30 pm -
1 stop9h 17m
Deal found 8/21![Delta logo]()
$185
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/245:18 pm -
1 stop8h 41m
Deal found 8/18![United Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Fri 9/118:39 am -
2 stops28h 51m
Deal found 8/18![Multiple Airlines logo]()
$190
This Booking.com deal was found by Cheapflights users on 8/18. 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 9/116:28 pm -
1 stop19h 48m
Deal found 8/18![Alaska Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/148:39 pm -
3 stops40h 51m
Deal found 8/18![Multiple Airlines logo]()
$201
This United Airlines deal was found by Cheapflights users on 8/19. 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
Deal found 8/19![United Airlines logo]()
$202
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 August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $337 (Delta) |
One-way from | $148 (Kiwi.com) |
Popular in | July |
Cheapest in | September |
Average price | $390 |
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 August 22, 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
Quickest round-trip
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Mon 11/2
7:45 pm-11:35 pm
1 stop6h 50m
Ontario
Sat 12/5
5:45 am-3:50 pm
1 stop7h 05m
$377
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Thu 9/17
6:35 pm-10:15 pm
1 stop6h 40m
Ontario
Mon 9/21
11:55 pm-11:20 am
1 stop8h 25m
$395
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Fri 9/25
6:30 pm-10:05 pm
1 stop6h 35m
Ontario
Mon 9/28
11:55 pm-11:20 am
1 stop8h 25m
$395
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Mon 11/2
1:25 pm-9:55 pm
2 stops11h 30m
Ontario
Thu 12/3
8:40 am-8:50 pm
2 stops9h 10m
$405
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Thu 10/8
5:40 am-11:25 am
2 stops8h 45m
Ontario
Wed 10/14
5:40 am-5:30 pm
2 stops8h 50m
$405
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Fri 10/2
5:40 pm-10:24 pm
1 stop7h 44m
Ontario
Fri 10/9
12:16 pm-12:46 am
1 stop9h 30m
$413
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Thu 10/8
5:46 pm-11:55 pm
1 stop9h 09m
Ontario
Mon 10/12
11:15 pm-10:06 am
1 stop7h 51m
$428
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Tue 9/22
7:02 am-2:16 pm
1 stop10h 14m
Ontario
Sun 9/27
7:59 pm-5:30 pm
1 stop18h 31m
$432
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Wed 11/4
2:00 pm-7:30 pm
1 stop8h 30m
Ontario
Sun 11/8
6:00 am-4:51 pm
1 stop7h 51m
$432
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Thu 9/17
2:11 pm-10:51 pm
2 stops11h 40m
Ontario
Mon 9/21
1:18 pm-10:45 pm
1 stop6h 27m
$433
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 August.
| 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 $335). 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 $344 and $404 in September.The cheapest round-trip price found within the last 5 days was $337 on Delta (Sep 21-Sep 29).
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 August 22, 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
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
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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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 August 22, 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$462 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$314 | Average$401 | FlexibilityNo cancel fee | On-time71% |