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$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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — ONT
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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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 August 14, 2025.

Round-trip from

$337
(Delta)

One-way from

$169
(Delta)

Popular in

July

Cheapest in

May

Average price

$266
From White Plains Westchester County to Ontario
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One-way flight from White Plains Westchester County to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($20 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 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 August 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.
Tue 9/166:00 amHPN - ONT
1 stop7h 42mDelta
Tue 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.
Tue 9/164:29 pmHPN - ONT
1 stop8h 54mDelta
Sat 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.
Mon 9/154:29 pmHPN - ONT
1 stop8h 54mDelta
Tue 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.
Mon 9/154:29 pmHPN - ONT
1 stop8h 54mDelta
Fri 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.
Thu 9/46:00 amHPN - ONT
1 stop7h 35mDelta
Mon 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.
Thu 9/111:35 pmHPN - ONT
1 stop10h 36mAmerican Airlines
Thu 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.
Thu 11/67:25 amHPN - ONT
2 stops11h 36mAmerican Airlines
Sun 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.
Sun 9/146:00 amHPN - ONT
1 stop7h 42mDelta
Wed 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.
Sun 9/146:00 amHPN - ONT
1 stop7h 42mDelta
Sat 9/2011:55 amONT - HPN
1 stop7h 23mDelta
Deal found 8/14$433

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 August 14, 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

Tue 9/16

6:00 am-10:42 am

1 stop7h 42m

Ontario

Tue 9/23

11:55 am-10:18 pm

1 stop7h 23m

$337

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Tue 9/16

6:00 am-10:42 am

1 stop7h 42m

Ontario

Wed 9/24

11:55 am-10:18 pm

1 stop7h 23m

$337

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Tue 9/16

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

Sat 9/20

11:55 am-10:18 pm

1 stop7h 23m

$342

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sat 1/24

6:00 am-11:38 am

1 stop8h 38m

Ontario

Sun 1/25

10:30 pm-9:50 am

1 stop8h 20m

$347

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Mon 9/15

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

Tue 9/23

10:00 pm-9:49 am

1 stop8h 49m

$352

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Mon 9/15

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

Fri 9/19

10:00 pm-11:59 am

2 stops10h 59m

$362

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sat 9/6

6:00 am-10:35 am

1 stop7h 35m

Ontario

Sun 9/7

11:45 am-10:23 pm

1 stop7h 38m

$377

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Mon 9/15

4:29 pm-10:23 pm

1 stop8h 54m

Ontario

Wed 9/24

11:55 am-10:18 pm

1 stop7h 23m

$377

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Tue 9/23

6:00 am-10:42 am

1 stop7h 42m

$169

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 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
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 $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 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 August 14, 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 August 14, 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
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

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

Crew

8.5

Boarding

8.2

Food

7.3

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.

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

    According to our current data, Delta ($296), offers the cheapest pricing from White Plains to Ontario. Delta is 23% 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 $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 White Plains 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 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$296Average$468FlexibilityNo cancel feeOn-timeN/A

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