HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — ONT
Oct 31 — Nov 71
Fri 10/31
Fri 11/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Westchester County 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 Westchester County to Ontario

Keep the following information in mind while searching for Westchester County to Ontario flight deals. Data was last updated October 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$337
(Delta)

One-way from

$169
(Delta)

Popular in

December

Cheapest in

January

Average price

$347
Provider with most accurate pricing for New York (NYC)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Los Angeles flights.
Search Deals
From Westchester County to Ontario
Search Deals
One-way flight from Westchester County to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 1, 2025.

This Delta deal was found by Cheapflights users on 10/1. 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 11/54:29 pmHPN - ONT
1 stop8h 53mDelta
Sat 11/811:36 amONT - HPN
1 stop7h 33mDelta
Deal found 10/1$337
This Delta deal was found by Cheapflights users on 9/29. 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 10/3112:45 pmHPN - ONT
2 stops11h 35mDelta
Sun 11/210:00 pmONT - HPN
1 stop8h 44mDelta
Deal found 9/29$342
This Delta deal was found by Cheapflights users on 10/1. 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 11/1312:45 pmHPN - ONT
1 stop9h 57mDelta
Wed 11/196:00 amONT - HPN
2 stops13h 09mDelta
Deal found 10/1$353
This Delta deal was found by Cheapflights users on 9/30. 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 10/1112:45 pmHPN - ONT
1 stop9h 34mDelta
Sat 10/2511:36 amONT - HPN
1 stop7h 33mDelta
Deal found 9/30$377
This Delta deal was found by Cheapflights users on 10/1. 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 11/1312:45 pmHPN - ONT
1 stop9h 57mDelta
Mon 11/1710:25 pmONT - HPN
1 stop13h 03mDelta
Deal found 10/1$419
This Delta deal was found by Cheapflights users on 10/1. 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 11/74:29 pmHPN - ONT
1 stop8h 53mDelta
Tue 11/117:05 amONT - HPN
1 stop7h 56mDelta
Deal found 10/1$433
This Delta deal was found by Cheapflights users on 9/30. 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 10/1812:55 pmHPN - ONT
2 stops11h 25mDelta
Mon 10/2010:00 pmONT - HPN
2 stops10h 59mDelta
Deal found 9/30$438
This Delta deal was found by Cheapflights users on 9/30. 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 10/16:00 amHPN - ONT
1 stop7h 42mDelta
Tue 10/711:36 amONT - HPN
1 stop7h 33mDelta
Deal found 9/30$441
This Delta deal was found by Cheapflights users on 9/30. 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 11/612:45 pmHPN - ONT
1 stop9h 34mDelta
Tue 11/1110:25 pmONT - HPN
1 stop8h 22mDelta
Deal found 9/30$452
This Delta deal was found by Cheapflights users on 9/30. 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 10/46:00 amHPN - ONT
1 stop7h 42mDelta
Mon 10/611:36 amONT - HPN
1 stop7h 33mDelta
Deal found 9/30$480

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 October 1, 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

Wed 11/5

4:29 pm-10:22 pm

1 stop8h 53m

Ontario

Tue 11/11

10:25 pm-9:47 am

1 stop8h 22m

$337

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Fri 10/31

12:45 pm-7:19 pm

1 stop9h 34m

Ontario

Sun 11/2

10:00 pm-9:44 am

1 stop8h 44m

$337

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sat 2/7

6:00 am-11:38 am

1 stop8h 38m

Ontario

Sun 2/8

10:30 pm-9:50 am

1 stop8h 20m

$337

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Thu 11/13

12:45 pm-7:42 pm

1 stop9h 57m

Ontario

Tue 11/18

4:49 pm-9:47 am

2 stops13h 58m

$342

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sat 10/18

12:45 pm-7:19 pm

1 stop9h 34m

Ontario

Mon 10/20

10:00 pm-11:59 am

2 stops10h 59m

$342

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Mon 11/3

3:15 pm-9:20 pm

2 stops9h 05m

Ontario

Thu 11/6

10:00 pm-9:44 am

1 stop8h 44m

$342

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Thu 11/13

12:45 pm-7:42 pm

1 stop9h 57m

Ontario

Mon 11/17

6:00 am-10:09 pm

2 stops13h 09m

$353

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sat 10/11

12:45 pm-7:19 pm

1 stop9h 34m

Ontario

Sat 10/25

11:36 am-10:09 pm

1 stop7h 33m

$377

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sat 2/21

6:00 am-11:38 am

1 stop8h 38m

$169

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 10/15

4:29 pm-10:22 pm

1 stop8h 53m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

Showing 1-10 of 16 results
1
2

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 $327). 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 October 1, 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 October 1, 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
7,961 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

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 53m. Delta provides one of the quickest options available for as low as $337. The distance between Westchester County and Ontario is about 2424 mi.

  • 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 $327). 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 Westchester County 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
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Newark to Los Angeles flights
LaGuardia to Los Angeles flights
Newark to San Francisco flights
Newark to Las Vegas flights
LaGuardia to Las Vegas flights
LaGuardia to San Francisco flights
Newark to San Diego flights
John F Kennedy Intl to Ontario flights
Newark to Burbank flights
John F Kennedy Intl to San Diego flights
Newark to Santa Ana flights
Newark to Ontario flights
LaGuardia to Burbank flights
John F Kennedy Intl to Santa Ana flights
LaGuardia to Santa Ana flights
LaGuardia to Ontario flights
LaGuardia to San Diego flights
Newark to San Jose flights
John F Kennedy Intl to San Jose flights
John F Kennedy Intl to Palm Springs flights
Newark to Sacramento flights
Buffalo to Las Vegas flights
Newark to Palm Springs flights
Newark to Oakland flights
Albany to Las Vegas flights
Rochester to Las Vegas flights
John F Kennedy Intl to Sacramento flights
White Plains to Los Angeles flights
John F Kennedy Intl to Burbank flights
LaGuardia to San Jose flights
John F Kennedy Intl to Oakland flights
LaGuardia to Palm Springs flights
John F Kennedy Intl to Long Beach flights
White Plains to Las Vegas flights
John F Kennedy Intl to Reno flights
LaGuardia to Sacramento flights
Syracuse to Las Vegas flights
Buffalo to Los Angeles flights
Newark to Reno flights
Syracuse to San Francisco flights
Syracuse to Los Angeles flights
Albany to Los Angeles flights
LaGuardia to Reno flights
LaGuardia to Oakland flights
Islip to Las Vegas flights
Rochester to Los Angeles flights
Syracuse to Ontario flights

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 October 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$341Average$472FlexibilityNo cancel feeOn-timeN/A

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.