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Stewart

$154+ Cheap flights from Ontario to New Windsor (ONT - SWF)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SWF
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Cheap flight deals from Ontario to Stewart

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Stewart (SWF). 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 November 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Popular in

December

Cheapest in

January

Average price

$382
Provider with most accurate pricing for Ontario-New Windsor Stewart flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-New Windsor Stewart flights.
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Ontario to Stewart

One-way flights from Ontario to Stewart
Search for one-way flight options from Ontario to Stewart. Find affordable one-way fares based on user searches. Data last updated November 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Wed 12/106:15 amONT - SWF
3 stops50h 22mMultiple Airlines
Deal found 11/8$154
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Tue 1/1311:31 amONT - SWF
3 stops45h 02mMultiple Airlines
Deal found 11/8$163
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:19 pmONT - SWF
2 stops37h 44mMultiple Airlines
Deal found 11/10$185
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:30 pmONT - SWF
3 stops42h 49mMultiple Airlines
Deal found 11/9$194
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:18 pmONT - SWF
2 stops15h 19mMultiple Airlines
Deal found 11/9$200
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:58 amONT - SWF
3 stops30h 24mMultiple Airlines
Deal found 11/9$223
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:15 amONT - SWF
2 stops25h 48mMultiple Airlines
Deal found 11/9$245
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:20 pmONT - SWF
2 stops16h 43mMultiple Airlines
Deal found 11/9$251
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:00 amONT - SWF
3 stops26h 03mMultiple Airlines
Deal found 11/9$254

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Stewart 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 November 10, 2025.
Use the filters below to find and compare flights from Ontario to New Windsor that are best for you.

Fly from

Ontario

Fly to

Stewart

Route

Depart

Return

Price

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Wed 12/10

6:15 am-11:37 am

3 stops50h 22m

$154

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Tue 1/13

11:31 am-11:33 am

3 stops45h 02m

$163

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Tue 2/3

8:30 am-11:08 am

3 stops47h 38m

$163

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Fri 12/12

6:19 pm-11:03 am

2 stops37h 44m

$185

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Tue 12/2

12:30 pm-10:19 am

3 stops42h 49m

$194

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Sun 12/7

5:18 pm-11:37 am

2 stops15h 19m

$200

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Wed 11/19

12:58 am-10:22 am

3 stops30h 24m

$223

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Sat 12/6

6:15 am-11:03 am

2 stops25h 48m

$245

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Sat 12/13

3:20 pm-11:03 am

2 stops16h 43m

$251

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Sat 12/20

6:00 am-11:03 am

3 stops26h 03m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Compare providers for flights from Ontario to Stewart

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 Ontario to Stewart in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Ontario-New Windsor flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-New Windsor flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-New Windsor flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-New Windsor flights, Cheapflights users trust Expedia the most. Expedia 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 Ontario-New Windsor 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 Ontario to Stewart

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

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

Currently, June is the cheapest month in which you can book a flight from Ontario to New Windsor (average of $78). Flying from Ontario to New Windsor in December is currently the most expensive (average of $172). 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 Ontario to Stewart. 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 Ontario to Stewart that include hotel bookings?

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Ontario to New Windsor (average of $78). Flying from Ontario to New Windsor in December is currently the most expensive (average of $172). 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

Traveling to a place near New Windsor?

Book flights to New Windsor if you plan to visit one of these locations
Kingston

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