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Stewart

$170+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SWF
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
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 septiembre 17, 2025.

Popular in

December

Cheapest in

January

Average price

$312
Highest demand for flights based on searches. 6% potential increase in price ($24 potential increase over avg. RT price).
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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 September 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 septiembre 17, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/238:34 amONT - SWF
2 stops23h 07mMultiple Airlines
Deal found 9/14$170
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1311:59 amONT - SWF
2 stops19h 12mMultiple Airlines
Deal found 9/16$175
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/226:53 amONT - SWF
3 stops48h 48mMultiple Airlines
Deal found 9/14$180
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/29:16 amONT - SWF
2 stops23h 05mMultiple Airlines
Deal found 9/16$185
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/112:05 pmONT - SWF
3 stops45h 06mMultiple Airlines
Deal found 9/15$186
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/167:22 amONT - SWF
2 stops24h 49mMultiple Airlines
Deal found 9/16$194
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/88:00 amONT - SWF
2 stops24h 03mMultiple Airlines
Deal found 9/16$198
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/276:53 amONT - SWF
3 stops24h 33mMultiple Airlines
Deal found 9/16$207
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/18:59 pmONT - SWF
3 stops35h 22mMultiple Airlines
Deal found 9/15$208
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/96:53 amONT - SWF
3 stops25h 18mMultiple Airlines
Deal found 9/14$209

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 septiembre 17, 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

jue. 10/23

8:34 am-10:41 am

2 stops23h 07m

$170

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

mié. 10/22

6:53 am-10:41 am

3 stops48h 48m

$180

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

jue. 10/2

9:16 am-11:21 am

2 stops23h 05m

$185

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

dom. 11/16

7:22 am-11:11 am

2 stops24h 49m

$194

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

mié. 10/8

8:00 am-11:03 am

2 stops24h 03m

$198

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

jue. 10/30

7:39 am-10:41 am

2 stops24h 02m

$198

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

mar. 9/30

8:59 pm-11:21 am

3 stops59h 22m

$201

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

lun. 10/27

6:53 am-10:26 am

3 stops24h 33m

$207

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

mié. 10/1

8:59 pm-11:21 am

3 stops35h 22m

$208

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

dom. 11/9

6:53 am-11:11 am

3 stops25h 18m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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, October is the cheapest month in which you can book a flight from Ontario to New Windsor (average of $109). Flying from Ontario to New Windsor in December is currently the most expensive (average of $202). 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, October is the cheapest month in which you can book a flight from Ontario to New Windsor (average of $109). Flying from Ontario to New Windsor in December is currently the most expensive (average of $202). 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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