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$169+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — ONT
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 agosto 14, 2025.

Round-trip from

$337
(Delta)

One-way from

$169
(Delta)

Popular in

December

Cheapest in

January

Average price

$356
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. 8% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 14, 2025.

This Delta deal was found by Cheapflights users on 8/14. 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.
mar. 9/166:00 amHPN - ONT
1 stop7h 42mDelta
mar. 9/2311:55 amONT - HPN
1 stop7h 23mDelta
Deal found 8/14$337
This Delta deal was found by Cheapflights users on 8/14. 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.
mar. 9/164:29 pmHPN - ONT
1 stop8h 54mDelta
sáb. 9/2011:55 amONT - HPN
1 stop7h 23mDelta
Deal found 8/14$342
This Delta deal was found by Cheapflights users on 8/14. 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.
lun. 9/154:29 pmHPN - ONT
1 stop8h 54mDelta
mar. 9/2310:00 pmONT - HPN
1 stop8h 49mDelta
Deal found 8/14$352
This Delta deal was found by Cheapflights users on 8/13. 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.
lun. 9/154:29 pmHPN - ONT
1 stop8h 54mDelta
vie. 9/1910:00 pmONT - HPN
2 stops10h 59mDelta
Deal found 8/13$362
This Delta deal was found by Cheapflights users on 8/14. 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. 9/46:00 amHPN - ONT
1 stop7h 35mDelta
lun. 9/811:45 amONT - HPN
1 stop7h 38mDelta
Deal found 8/14$382
This American Airlines deal was found by Cheapflights users on 8/14. 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.
jue. 9/111:35 pmHPN - ONT
1 stop10h 36mAmerican Airlines
jue. 9/187:16 pmONT - HPN
2 stops12h 29mAmerican Airlines
Deal found 8/14$387
This American Airlines deal was found by Cheapflights users on 8/13. 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.
jue. 11/67:25 amHPN - ONT
2 stops11h 36mAmerican Airlines
dom. 11/1611:59 pmONT - HPN
2 stops10h 01mAmerican Airlines
Deal found 8/13$427
This Delta deal was found by Cheapflights users on 8/14. 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.
dom. 9/146:00 amHPN - ONT
1 stop7h 42mDelta
mié. 9/2411:55 amONT - HPN
1 stop7h 23mDelta
Deal found 8/14$428
This Delta deal was found by Cheapflights users on 8/14. 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.
dom. 9/146:00 amHPN - ONT
1 stop7h 42mDelta
sáb. 9/2011:55 amONT - HPN
1 stop7h 23mDelta
Deal found 8/14$433

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 agosto 14, 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

mar. 9/16

6:00 am-10:42 am

1 stop7h 42m

Ontario

mar. 9/23

11:55 am-10:18 pm

1 stop7h 23m

$337

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

mar. 9/16

6:00 am-10:42 am

1 stop7h 42m

Ontario

mié. 9/24

11:55 am-10:18 pm

1 stop7h 23m

$337

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

mar. 9/16

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

sáb. 9/20

11:55 am-10:18 pm

1 stop7h 23m

$342

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

sáb. 1/24

6:00 am-11:38 am

1 stop8h 38m

Ontario

dom. 1/25

10:30 pm-9:50 am

1 stop8h 20m

$347

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

lun. 9/15

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

mar. 9/23

10:00 pm-9:49 am

1 stop8h 49m

$352

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

lun. 9/15

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

vie. 9/19

10:00 pm-11:59 am

2 stops10h 59m

$362

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

sáb. 9/6

6:00 am-10:35 am

1 stop7h 35m

Ontario

dom. 9/7

11:45 am-10:23 pm

1 stop7h 38m

$377

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

lun. 9/15

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

mié. 9/24

11:55 am-10:18 pm

1 stop7h 23m

$377

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

mar. 9/23

6:00 am-10:42 am

1 stop7h 42m

$169

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

mié. 9/17

6:00 am-10:42 am

1 stop7h 42m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 18 results
1
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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, 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 agosto 14, 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.

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 agosto 14, 2025.
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
8.0
Very good
7,980 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

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
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

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.

  • 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.

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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$296Average$468FlexibilityNo cancel feeOn-timeN/A

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