HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$166+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
PIT — ONT
mar. 8 — mar. 151
sáb. 3/8
sáb. 3/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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.

The best prices from Pittsburgh to Ontario are usually found in April or November, booked 18 days in advance, depart on a Friday or Tuesday and return on a Wednesday

Cheap 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 marzo 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(American Airlines)

One-way from

$166
(Delta)

Popular in

January

Cheapest in

April

Average price

$482
Provider with most accurate pricing for Pittsburgh-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Pittsburgh-Ontario flights.
Search Deals
From Pittsburgh to Ontario
Search Deals
One-way flight from Pittsburgh to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Pittsburgh to Ontario

Cheapest flights from Pittsburgh to Ontario
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 marzo 3, 2025.

This Delta deal was found by Cheapflights users on 3/2. 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.
jue. 3/275:35 pmPIT - ONT
1 stop9h 21mDelta
mar. 4/112:46 pmONT - PIT
1 stop8h 33mDelta
Deal found 3/2$331
This American Airlines deal was found by Cheapflights users on 3/2. 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.
mié. 4/21:42 pmPIT - ONT
2 stops11h 18mAmerican Airlines
mié. 4/912:50 pmONT - PIT
2 stops8h 02mAmerican Airlines
Deal found 3/2$341
This Southwest deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/134:05 pmPIT - ONT
1 stop9h 25mSouthwest
lun. 5/2612:00 pmONT - PIT
1 stop8h 20mSouthwest
Deal found 3/2$374
This Alaska Airlines deal was found by Cheapflights users on 3/2. 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.
mar. 4/87:36 pmPIT - ONT
1 stop18h 03mAlaska Airlines
lun. 4/146:00 amONT - PIT
1 stop9h 36mAlaska Airlines
Deal found 3/2$411
This United Airlines deal was found by Cheapflights users on 3/2. 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.
jue. 5/18:20 amPIT - ONT
1 stop9h 05mUnited Airlines
lun. 5/56:48 pmONT - PIT
1 stop7h 39mUnited Airlines
Deal found 3/2$431
This United deal was found by Cheapflights users on 3/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/114:20 pmPIT - ONT
1 stop7h 37mMultiple Airlines
jue. 3/206:00 amONT - PIT
1 stop9h 36mMultiple Airlines
Deal found 3/2$667

Find flights from Pittsburgh to Ontario within your budget

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 marzo 3, 2025.

Fly from

Pittsburgh

Fly to

Ontario

Route

Depart

Return

Price

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

jue. 3/27

5:35 pm-11:56 pm

1 stop9h 21m

Ontario

mar. 4/1

12:46 pm-12:19 am

1 stop8h 33m

$331

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

mié. 4/2

1:42 pm-10:00 pm

2 stops11h 18m

Ontario

mié. 4/9

12:50 pm-11:52 pm

2 stops8h 02m

$341

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

mar. 5/13

4:05 pm-10:30 pm

1 stop9h 25m

Ontario

lun. 5/26

12:00 pm-11:20 pm

1 stop8h 20m

$374

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

mar. 4/8

7:36 pm-10:39 am

1 stop18h 03m

Ontario

lun. 4/14

6:00 am-6:36 pm

1 stop9h 36m

$411

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

jue. 5/1

8:20 am-2:25 pm

1 stop9h 05m

Ontario

lun. 5/5

6:48 pm-5:27 am

1 stop7h 39m

$431

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

mar. 3/11

4:20 pm-8:57 pm

1 stop7h 37m

Ontario

jue. 3/20

6:00 am-6:36 pm

1 stop9h 36m

$667

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

lun. 3/17

5:59 pm-10:43 pm

1 stop7h 44m

$166

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

mar. 5/6

8:20 am-2:25 pm

1 stop9h 05m

$216

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

lun. 3/24

7:36 pm-10:39 am

1 stop18h 03m

$237

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

dom. 4/27

4:15 pm-11:30 pm

2 stops10h 15m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

Travel insights for flights from Pittsburgh to Ontario

Get recent, data-driven insights about flights from Pittsburgh to Ontario including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Pittsburgh to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Pittsburgh to Ontario. Price data was last updated on February 28, 2025.

The best time to book flights from Pittsburgh to Ontario is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Pittsburgh to Ontario?

Currently, August is the cheapest month in which you can book a flight from Pittsburgh to Ontario (average of $246). Flying from Pittsburgh to Ontario in March is currently the most expensive (average of $313). 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 marzo 3, 2025.

When flying from Pittsburgh to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 12% versus a flight in the afternoon.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 marzo 3, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta 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.
Southwest
8.1
Very good
4,333 reviews

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,333 reviews
Southwest
8.1
Very good
4,333 reviews

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,710 reviews
Southwest
8.1
Very good
4,333 reviews

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,068 reviews
Southwest
8.1
Very good
4,333 reviews

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines
7.4
Good
8,679 reviews
Southwest
8.1
Very good
4,333 reviews

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,333 reviews

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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.

  • What are the cheapest airlines flying from Pittsburgh to Ontario round-trip?

    Cheapflights users have booked flights from Pittsburgh to Ontario round-trip from $329. Other airlines that can offer you cheap pricing are Delta, from $331, and Southwest, from $342. American Airlines is currently priced 27% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Pittsburgh to Ontario one-way?

    The cheapest airlines for a one-way flight from Pittsburgh to Ontario are Delta ($166), United Airlines ($216), and Alaska Airlines ($237).

  • Can I find deals for flights from Pittsburgh to Ontario that include hotel bookings?

    Yes. In addition to deals on Pittsburgh to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pittsburgh to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pittsburgh to Ontario.

  • Can I find deals for business class flights from Pittsburgh to Ontario?

    Yes. Cheapflights offers flight deals from Pittsburgh to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pittsburgh to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Pittsburgh to Ontario (average of $246). Flying from Pittsburgh to Ontario in March is currently the most expensive (average of $313). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pittsburgh to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Dulles Intl to Las Vegas flights
LaGuardia to Las Vegas flights
LaGuardia to Los Angeles flights
Reagan-National to Los Angeles flights
Newark to San Francisco flights
Dulles Intl to Los Angeles flights
John F Kennedy Intl to San Diego flights
Reagan-National to Las Vegas flights
Newark to San Diego flights
Dulles Intl to San Francisco flights
Newark to Burbank flights
LaGuardia to San Francisco flights
Philadelphia to Las Vegas flights
Reagan-National to San Francisco flights
Dulles Intl to San Diego flights
Philadelphia to San Francisco flights
Newark to Ontario flights
LaGuardia to Burbank flights
John F Kennedy Intl to Ontario flights
Newark to Santa Ana flights
Philadelphia to Los Angeles flights
Newark to Oakland flights
LaGuardia to Ontario flights
LaGuardia to San Diego flights
Pittsburgh to Las Vegas flights
Reagan-National to San Diego flights
John F Kennedy Intl to Palm Springs flights
LaGuardia to Oakland flights
John F Kennedy Intl to Santa Ana flights
LaGuardia to Santa Ana flights
Philadelphia to San Diego flights
Newark to San Jose flights
John F Kennedy Intl to San Jose flights
Newark to Palm Springs flights
Dulles Intl to Ontario flights
Reagan-National to Santa Ana flights
John F Kennedy Intl to Reno flights
Philadelphia to Ontario flights
Newark to Sacramento flights
LaGuardia to Palm Springs flights
Dulles Intl to Sacramento flights
John F Kennedy Intl to Sacramento flights
Philadelphia to Santa Ana flights
Philadelphia to Burbank flights
Dulles Intl to Palm Springs flights

Top 3 airlines flying from Pittsburgh to Ontario

Discover the top 3 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 marzo 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$497FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$277Average$391FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$346Average$526FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.