HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$169+ Cheap flights from White Plains to Ontario (HPN - 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — ONT
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from White Plains 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 White Plains to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from White Plains (HPN) 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 September 17, 2025.

Round-trip from

$348
(Delta)

One-way from

$169
(Delta)

Popular in

July

Cheapest in

May

Average price

$376
From White Plains Westchester County to Ontario
Search Deals
One-way flight from White Plains Westchester County to Ontario
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from White Plains to Ontario

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

This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/21:35 pmHPN - ONT
1 stop10h 36mAmerican Airlines
Mon 10/611:59 pmONT - HPN
2 stops10h 01mAmerican Airlines
Deal found 9/16$367
This Delta deal was found by Cheapflights users on 9/15. 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
Sat 10/1111:36 amONT - HPN
1 stop7h 33mDelta
Deal found 9/15$385
This Delta deal was found by Cheapflights users on 9/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:29 pmHPN - ONT
1 stop9h 35mDelta
Tue 11/1811:45 amONT - HPN
1 stop7h 24mDelta
Deal found 9/17$397
This Delta deal was found by Cheapflights users on 9/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:29 pmHPN - ONT
1 stop9h 35mDelta
Wed 11/1910:25 pmONT - HPN
1 stop8h 22mDelta
Deal found 9/17$408
This Delta deal was found by Cheapflights users on 9/16. 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.
Tue 9/304:29 pmHPN - ONT
1 stop8h 54mDelta
Sun 10/510:00 pmONT - HPN
2 stops10h 59mDelta
Deal found 9/16$417
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/14:29 pmHPN - ONT
1 stop8h 54mDelta
Sun 10/510:00 pmONT - HPN
2 stops10h 59mDelta
Deal found 9/16$422
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 9/201:41 pmHPN - ONT
1 stop10h 43mAmerican Airlines
Wed 9/2410:35 pmONT - HPN
1 stop7h 54mAmerican Airlines
Deal found 9/14$429

Cheapflights Fare Finder

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

Fly from

White Plains

Fly to

Ontario

Route

Depart

Return

Price

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sun 2/1

6:00 am-11:38 am

1 stop8h 38m

Ontario

Wed 2/4

10:30 pm-9:50 am

1 stop8h 20m

$348

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sun 2/1

6:00 am-11:38 am

1 stop8h 38m

Ontario

Tue 2/3

10:30 pm-9:50 am

1 stop8h 20m

$348

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Mon 2/23

6:00 am-11:38 am

1 stop8h 38m

Ontario

Thu 2/26

10:30 pm-9:50 am

1 stop8h 20m

$368

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sat 10/4

6:00 am-10:42 am

1 stop7h 42m

Ontario

Sat 10/11

11:36 am-10:09 pm

1 stop7h 33m

$385

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Tue 9/30

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

Sun 10/5

10:00 pm-11:59 am

2 stops10h 59m

$417

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Thu 11/13

4:29 pm-11:52 pm

2 stops10h 23m

Ontario

Tue 11/18

4:49 pm-9:47 am

2 stops13h 58m

$432

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Thu 11/13

4:29 pm-11:52 pm

2 stops10h 23m

Ontario

Wed 11/19

6:00 am-10:09 pm

2 stops13h 09m

$432

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 10/1

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

Sun 10/5

10:00 pm-9:44 am

1 stop8h 44m

$457

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Thu 11/13

4:29 pm-11:04 pm

1 stop9h 35m

Ontario

Mon 11/17

10:25 pm-11:59 am

1 stop10h 34m

$481

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 11/12

4:29 pm-11:04 pm

1 stop9h 35m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 16 results
1
2

Best time to book a flight from White Plains to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from White Plains 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 White Plains to Ontario

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

Currently, August is the cheapest month in which you can book a flight from White Plains to Ontario (average of $246). Flying from White Plains 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 HPN to ONT?

Find hourly flight availability from White Plains 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 September 17, 2025.

It’s typically best to fly out from White Plains to Ontario in the afternoon. Doing so could potentially save you 7% on the flight price compared to flying at noon, which is usually more expensive.

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 September 17, 2025.
Get a feel of what it's like to fly with Delta from White Plains to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

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

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

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 White Plains to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from White Plains to Ontario?

    Delta can get you from White Plains to Ontario in just under 8h 38m. Your travel time can differ by up to . The distance between White Plains and Ontario is about 2424 mi.

  • What is the cheapest airline to fly from White Plains to Ontario round-trip?

    According to our current data, Delta ($341), offers the cheapest pricing from White Plains to Ontario. Delta is 15% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from White Plains to Ontario?

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

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

    Yes. Cheapflights offers flight deals from White Plains 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 White Plains to Ontario?

    Currently, August is the cheapest month in which you can book a flight from White Plains to Ontario (average of $246). Flying from White Plains 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 White Plains 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
Newark 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
LaGuardia to Las Vegas flights
John F Kennedy Intl to Ontario flights
LaGuardia to San Francisco flights
John F Kennedy Intl to San Diego flights
Newark to Burbank flights
Newark to San Diego flights
Newark to Ontario flights
Newark to Santa Ana flights
LaGuardia to Burbank flights
LaGuardia to Santa Ana flights
John F Kennedy Intl to Santa Ana flights
LaGuardia to San Diego flights
LaGuardia to Ontario flights
John F Kennedy Intl to San Jose flights
Newark to San Jose flights
Newark to Palm Springs flights
John F Kennedy Intl to Palm Springs flights
Newark to Sacramento flights
Buffalo to Las Vegas flights
Newark to Oakland flights
Rochester to Las Vegas flights
LaGuardia to Palm Springs flights
Stewart to Las Vegas flights
John F Kennedy Intl to Sacramento flights
John F Kennedy Intl to Oakland flights
John F Kennedy Intl to Reno flights
LaGuardia to San Jose flights
Albany to Las Vegas flights
John F Kennedy Intl to Long Beach flights
Syracuse to Las Vegas flights
Newark to Reno flights
Stewart to San Francisco flights
LaGuardia to Oakland flights
LaGuardia to Sacramento flights
White Plains to Los Angeles flights
John F Kennedy Intl to Burbank flights
White Plains to Las Vegas flights
LaGuardia to Reno flights
Islip to Las Vegas flights
Buffalo to Los Angeles flights
Buffalo to San Francisco flights
Rochester to Los Angeles flights
Syracuse to San Francisco flights

Top airline flying from White Plains to Ontario

Discover the top airline that operate flights from White Plains 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 September 17, 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.