HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$215+ Cheap flights from New Windsor to Ontario (SWF - 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — ONT
dic. 17 — dic. 241
mié. 12/17
mié. 12/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Stewart 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.

Find flight deals from Stewart to Ontario

One-way flights from Stewart to Ontario
Search for one-way flight options from Stewart to Ontario. Find affordable one-way fares based on user searches. Data last updated noviembre 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/2311:43 amSWF - ONT
2 stops48h 10mMultiple Airlines
Deal found 11/14$215
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/209:45 amSWF - ONT
3 stops24h 39mMultiple Airlines
Deal found 11/16$226
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/228:25 pmSWF - ONT
3 stops54h 34mMultiple Airlines
Deal found 11/16$250
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/198:11 pmSWF - ONT
2 stops21h 19mMultiple Airlines
Deal found 11/15$301
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/308:41 pmSWF - ONT
2 stops27h 25mMultiple Airlines
Deal found 11/17$432

Cheap flight deals from Stewart to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Stewart (SWF) 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 noviembre 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

December

Cheapest in

September

Average price

$385
Provider with most accurate pricing for New Windsor Stewart-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for New Windsor Stewart-Ontario flights.
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($33 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 November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Stewart 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 noviembre 17, 2025.
Use the filters below to find and compare flights from New Windsor to Ontario that are best for you.

Fly from

Stewart

Fly to

Ontario

Route

Depart

Return

Price

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

mar. 12/23

11:43 am-8:53 am

2 stops48h 10m

$215

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

sáb. 12/20

9:45 am-7:24 am

3 stops24h 39m

$226

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

lun. 12/22

8:25 pm-11:59 pm

3 stops54h 34m

$250

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

vie. 12/19

8:11 pm-2:30 pm

2 stops21h 19m

$301

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

dom. 11/30

8:41 pm-9:06 pm

2 stops27h 25m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/14

Compare providers for flights from Stewart 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 Stewart to Ontario in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 New Windsor-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New Windsor-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from New Windsor-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on New Windsor-Ontario flights, Cheapflights users trust eDreams the most. eDreams 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 New Windsor-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 Stewart to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Stewart 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 New Windsor to Ontario

What is the cheapest month to book a flight from New Windsor to Ontario?

Currently, May is the cheapest month in which you can book a flight from New Windsor to Ontario (average of $87). Flying from New Windsor to Ontario in December is currently the most expensive (average of $176). 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.

Related info for your journey

Find useful and relevant information for your journey from Stewart to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

  • How can I find direct flights from Stewart to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Stewart 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 New Windsor to Ontario?

    Currently, May is the cheapest month in which you can book a flight from New Windsor to Ontario (average of $87). Flying from New Windsor to Ontario in December is currently the most expensive (average of $176). 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 Stewart 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
Newark 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 San Francisco flights
LaGuardia to Los Angeles flights
LaGuardia to Las Vegas flights
LaGuardia to San Francisco flights
John F Kennedy Intl to San Diego flights
Newark to San Diego flights
Newark to Ontario flights
LaGuardia to Burbank flights
John F Kennedy Intl to Ontario flights
John F Kennedy Intl to Santa Ana flights
LaGuardia to Santa Ana flights
Newark to Santa Ana flights
LaGuardia to San Diego flights
LaGuardia to Ontario flights
Newark to Palm Springs flights
Newark to Sacramento flights
John F Kennedy Intl to Palm Springs flights
Newark to San Jose flights
John F Kennedy Intl to San Jose flights
John F Kennedy Intl to Burbank flights
Rochester to Las Vegas flights
John F Kennedy Intl to Reno flights
Buffalo to Las Vegas flights
LaGuardia to Palm Springs flights
Albany to Las Vegas flights
John F Kennedy Intl to Sacramento flights
John F Kennedy Intl to Oakland flights
Newark to Reno flights
Newark to Oakland flights
John F Kennedy Intl to Long Beach flights
LaGuardia to San Jose flights
Newark to Burbank flights
LaGuardia to Reno flights
Buffalo to Los Angeles flights
Syracuse to Las Vegas flights
LaGuardia to Sacramento flights
Islip to Las Vegas flights
Syracuse to Los Angeles flights
White Plains to Las Vegas flights
Albany to Los Angeles flights
White Plains to Los Angeles flights
Rochester to Los Angeles flights
Stewart to Las Vegas flights
White Plains to San Francisco flights

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.