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Ontario

$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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — ONT
Feb 12 — Feb 191
Thu 2/12
Thu 2/19
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 January 13, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$317
(American Airlines)

One-way from

$159
(Delta)

Popular in

December

Cheapest in

January

Average price

$312
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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. 5% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 13, 2026.

This Delta deal was found by Cheapflights users on 1/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/16:00 am
HPN
-
ONT
1 stop8h 31m
Delta
Wed 2/410:30 pm
ONT
-
HPN
1 stop8h 14m
Delta
Deal found 1/11$317
This Delta deal was found by Cheapflights users on 1/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/256:00 am
HPN
-
ONT
1 stop8h 31m
Delta
Sun 2/110:30 pm
ONT
-
HPN
1 stop8h 14m
Delta
Deal found 1/11$330
This American Airlines deal was found by Cheapflights users on 1/12. 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.
Sun 2/13:10 pm
HPN
-
ONT
2 stops10h 03m
American Airlines
Wed 2/49:59 am
ONT
-
HPN
2 stops10h 01m
American Airlines
Deal found 1/12$341
This Delta deal was found by Cheapflights users on 1/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2512:59 pm
HPN
-
ONT
1 stop11h 06m
Delta
Sat 1/3110:30 pm
ONT
-
HPN
1 stop8h 14m
Delta
Deal found 1/11$343
This Delta deal was found by Cheapflights users on 1/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/266:00 am
HPN
-
ONT
1 stop8h 31m
Delta
Wed 1/285:10 pm
ONT
-
HPN
2 stops13h 38m
Delta
Deal found 1/11$348
This American Airlines deal was found by Cheapflights users on 1/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/2710:00 am
HPN
-
ONT
2 stops11h 45m
American Airlines
Sat 1/317:16 am
ONT
-
HPN
2 stops11h 39m
American Airlines
Deal found 1/11$354

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 January 13, 2026.
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

Sun 2/1

6:00 am-11:31 am

1 stop8h 31m

Ontario

Wed 2/4

10:30 pm-9:44 am

1 stop8h 14m

$317

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Fri 2/20

1:37 pm-11:59 pm

2 stops13h 22m

Ontario

Mon 2/23

11:59 pm-1:07 pm

1 stop10h 08m

$322

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Mon 1/26

6:00 am-11:31 am

1 stop8h 31m

Ontario

Sun 2/1

10:30 pm-9:44 am

1 stop8h 14m

$330

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Tue 1/27

6:00 am-11:31 am

1 stop8h 31m

Ontario

Sun 2/1

5:10 pm-9:44 am

2 stops13h 34m

$335

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 3/11

6:00 am-11:40 am

1 stop8h 40m

Ontario

Tue 3/17

10:25 pm-9:44 am

1 stop8h 19m

$337

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sun 2/1

3:10 pm-10:13 pm

2 stops10h 03m

Ontario

Wed 2/4

9:59 am-11:00 pm

2 stops10h 01m

$341

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sun 1/25

6:00 am-11:31 am

1 stop8h 31m

Ontario

Wed 1/28

5:10 pm-9:48 am

2 stops13h 38m

$348

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Fri 2/6

6:00 am-11:31 am

1 stop8h 31m

Ontario

Sun 2/8

10:30 pm-9:44 am

1 stop8h 14m

$350

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sun 2/1

6:00 am-11:31 am

1 stop8h 31m

$159

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 2/4

6:00 am-11:31 am

1 stop8h 31m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

Showing 1-10 of 17 results
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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, May is the cheapest month in which you can book a flight from Westchester County to Ontario (average of $87). Flying from Westchester County to Ontario in December is currently the most expensive (average of $399). 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.

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 January 13, 2026.
Read reviews from past customers who have flown Delta from Westchester County to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,038 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,038 reviews
Delta
7.9
Good
8,038 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • How long is the flight from Westchester County to Ontario?

    A quick flight from Westchester County to Ontario can take about 8h 31m. Delta provides one of the quickest options available for as low as $317. The distance between Westchester County and Ontario is about 2424 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, May is the cheapest month in which you can book a flight from Westchester County to Ontario (average of $87). Flying from Westchester County to Ontario in December is currently the most expensive (average of $399). 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

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Alternative routes for Westchester County to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Westchester County to Ontario

Discover the top airline 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 January 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$267Average$472FlexibilityNo cancel feeOn-timeN/A

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