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$159+ Cheap flights from Westchester County to Ontario (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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — ONT
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Westchester County to Ontario

Keep the following information in mind while searching for Westchester County to Ontario flight deals. Data was last updated April 17, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$332
(Delta)

One-way from

$159
(Delta)

Popular in

December

Cheapest in

September

Average price

$407
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From Westchester County to Ontario
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One-way flight from Westchester County to Ontario
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Highest demand for flights based on searches. 4% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Westchester County to Ontario

Cheapest flights from Westchester County to Ontario
Explore the most affordable flight options available from Westchester County to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Delta deal was found by Cheapflights users on 4/16. 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 6/216:00 amHPN - ONT
1 stop7h 38mDelta
Wed 6/257:05 amONT - HPN
1 stop7h 59mDelta
Deal found 4/16$332
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Wed 5/77:59 amHPN - ONT
2 stops13h 24mAmerican Airlines
Tue 5/1310:40 pmONT - HPN
1 stop7h 49mAmerican Airlines
Deal found 4/17$452
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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.
Wed 5/77:15 amHPN - ONT
2 stops16h 14mAlaska Airlines
Mon 5/126:24 pmONT - HPN
2 stops14h 05mAlaska Airlines
Deal found 4/17$462

Cheapflights Fare Finder

Customize your flight search to find flights from Westchester County 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 April 17, 2025.
Use the filters below to find and compare flights from Westchester County to Ontario that are best for you.

Fly from

Westchester County

Fly to

Ontario

Route

Depart

Return

Price

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sat 6/21

6:00 am-10:38 am

1 stop7h 38m

Ontario

Wed 6/25

7:05 am-6:04 pm

1 stop7h 59m

$332

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 5/7

7:59 am-6:23 pm

2 stops13h 24m

Ontario

Tue 5/13

10:40 pm-9:29 am

1 stop7h 49m

$452

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 5/7

7:15 am-8:29 pm

2 stops16h 14m

Ontario

Mon 5/12

6:24 pm-11:29 am

2 stops14h 05m

$462

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Thu 5/29

6:00 am-11:08 am

1 stop8h 08m

$159

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sun 5/4

3:00 pm-11:50 pm

2 stops11h 50m

$194

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sat 4/26

7:15 am-8:29 pm

2 stops16h 14m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Best time to book a flight from Westchester County to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Westchester County 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.

Cheapflights Insights

Everything you need to know about your flight from Westchester County to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Westchester County to Ontario (average of $246). Flying from Westchester County to Ontario in March is currently the most expensive (average of $328). 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 REU to ONT?

Find hourly flight availability from Westchester County 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 April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Westchester County to Ontario as you normally would.

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 April 17, 2025.
Read through reviews of airlines operating flights from Westchester County to Ontario, such as Alaska Airlines, Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Entertainment

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Westchester County to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Westchester County?

    For a flight from Westchester County to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

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

    One-way options have recently been found by users for as low as $159 on Delta. Other airlines that offer cheap prices include American Airlines from $194 and Alaska Airlines from $385 one-way.

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

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

  • How can I find direct flights from Westchester County to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Westchester County 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 Westchester County to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Westchester County to Ontario (average of $246). Flying from Westchester County to Ontario in March is currently the most expensive (average of $328). 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.

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Top 2 airlines flying from Westchester County to Ontario

Discover the top 2 airlines that operate flights from Westchester County 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$296Average$437FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$315Average$387FlexibilityNo cancel feeOn-time71%

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