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Ontario

$159+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — ONT
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheap 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 February 12, 2026.

This Delta deal was found by Cheapflights users on 2/10. 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 3/2412:48 pm
HPN
-
ONT
1 stop11h 12m
Delta
Wed 4/810:25 pm
ONT
-
HPN
1 stop8h 19m
Delta
Deal found 2/10$319
This Delta deal was found by Cheapflights users on 2/11. 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.
Wed 4/156:00 am
HPN
-
ONT
1 stop8h 36m
Delta
Wed 4/2210:15 pm
ONT
-
HPN
1 stop8h 34m
Delta
Deal found 2/11$321
This Delta deal was found by Cheapflights users on 2/9. 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 3/176:00 am
HPN
-
ONT
1 stop8h 47m
Delta
Tue 3/2410:25 pm
ONT
-
HPN
1 stop8h 19m
Delta
Deal found 2/9$327
This Delta deal was found by Cheapflights users on 2/10. 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 3/2612:48 pm
HPN
-
ONT
1 stop11h 12m
Delta
Wed 4/810:25 pm
ONT
-
HPN
1 stop8h 19m
Delta
Deal found 2/10$329
This Delta deal was found by Cheapflights users on 2/11. 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.
Wed 4/156:00 am
HPN
-
ONT
1 stop8h 36m
Delta
Thu 4/2310:15 pm
ONT
-
HPN
1 stop8h 34m
Delta
Deal found 2/11$339
This Delta deal was found by Cheapflights users on 2/9. 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 3/2112:35 pm
HPN
-
ONT
2 stops13h 13m
Delta
Tue 3/2410:25 pm
ONT
-
HPN
1 stop8h 19m
Delta
Deal found 2/9$342
This Delta deal was found by Cheapflights users on 2/9. 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 2/226:00 am
HPN
-
ONT
1 stop9h 02m
Delta
Sun 3/110:20 pm
ONT
-
HPN
1 stop8h 23m
Delta
Deal found 2/9$347
This Delta deal was found by Cheapflights users on 2/11. 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.
Fri 4/1712:48 pm
HPN
-
ONT
1 stop8h 45m
Delta
Wed 4/2210:15 pm
ONT
-
HPN
1 stop8h 34m
Delta
Deal found 2/11$349
This Delta deal was found by Cheapflights users on 2/10. 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 4/286:00 am
HPN
-
ONT
1 stop8h 36m
Delta
Thu 5/2811:04 pm
ONT
-
HPN
1 stop7h 44m
Delta
Deal found 2/10$352
This Delta deal was found by Cheapflights users on 2/10. 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 3/253:13 pm
HPN
-
ONT
2 stops11h 38m
Delta
Wed 4/810:25 pm
ONT
-
HPN
1 stop8h 19m
Delta
Deal found 2/10$354
This Delta deal was found by Cheapflights users on 2/9. 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 5/276:00 am
HPN
-
ONT
1 stop7h 57m
Delta
Sun 5/3111:04 pm
ONT
-
HPN
1 stop9h 56m
Delta
Deal found 2/9$362

Find 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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(Delta)

One-way from

$159
(Delta)

Popular in

December

Cheapest in

January

Average price

$347
Provider with most accurate pricing for White Plains Westchester County-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for White Plains Westchester County-Ontario flights.
Search Deals
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. 4% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 12, 2026.
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 3/24

12:48 pm-9:00 pm

1 stop11h 12m

Ontario

Wed 4/8

10:25 pm-9:44 am

1 stop8h 19m

$319

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 4/15

6:00 am-11:36 am

1 stop8h 36m

Ontario

Tue 4/21

10:15 pm-9:49 am

1 stop8h 34m

$321

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Tue 3/17

6:00 am-11:47 am

1 stop8h 47m

Ontario

Tue 3/24

10:25 pm-9:44 am

1 stop8h 19m

$327

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Thu 3/26

12:48 pm-9:00 pm

1 stop11h 12m

Ontario

Wed 4/8

10:25 pm-9:44 am

1 stop8h 19m

$329

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Tue 3/24

6:00 am-11:47 am

1 stop8h 47m

Ontario

Sat 4/4

10:25 pm-9:44 am

1 stop8h 19m

$347

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Sun 2/22

6:00 am-12:02 pm

1 stop9h 02m

Ontario

Sun 3/1

10:20 pm-9:43 am

1 stop8h 23m

$347

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Wed 3/25

6:00 am-11:47 am

1 stop8h 47m

Ontario

Sat 4/4

10:25 pm-9:44 am

1 stop8h 19m

$347

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Tue 4/28

6:00 am-11:36 am

1 stop8h 36m

Ontario

Wed 5/27

11:04 pm-9:48 am

1 stop7h 44m

$347

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Fri 4/17

12:48 pm-6:33 pm

1 stop8h 45m

Ontario

Wed 4/22

10:15 pm-9:49 am

1 stop8h 34m

$349

White PlainsOntario

HPN - ONT

HPNONT

White Plains Westchester County

Tue 4/28

6:00 am-11:36 am

1 stop8h 36m

Ontario

Sun 5/24

7:05 am-6:00 pm

1 stop7h 55m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 20 results
1
2

Compare providers for flights from White Plains to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from White Plains to Ontario in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on White Plains-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on White Plains-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from White Plains-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on White Plains-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for White Plains-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $90). Flying from White Plains to Ontario in October is currently the most expensive (average of $142). 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 February 12, 2026.
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
7.9
Good
8,179 reviews

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

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
8,179 reviews
Delta
7.9
Good
8,179 reviews

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

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 11h 12m. 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 ($267), offers the cheapest pricing from White Plains to Ontario.

  • 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 $90). Flying from White Plains to Ontario in October is currently the most expensive (average of $142). 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

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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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$267Average$407FlexibilityNo cancel feeOn-timeN/A

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