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Stewart

$189+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SWF
Sep 2 — Sep 91
Tue 9/2
Tue 9/9
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 August 28, 2025.

Popular in

December

Cheapest in

January

Average price

$342
Highest demand for flights based on searches. 6% potential increase in price ($23 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 August 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 August 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/26. 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 10/228:00 amONT - SWF
3 stops47h 41mMultiple Airlines
Deal found 8/26$189
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 9/128:59 pmONT - SWF
2 stops42h 23mMultiple Airlines
Deal found 8/28$192
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 10/158:00 amONT - SWF
3 stops47h 41mMultiple Airlines
Deal found 8/27$196
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Thu 10/26:00 amONT - SWF
3 stops26h 21mMultiple Airlines
Deal found 8/26$200
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 9/108:00 amONT - SWF
3 stops31h 22mMultiple Airlines
Deal found 8/28$210
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/308:59 pmONT - SWF
3 stops59h 22mMultiple Airlines
Deal found 8/26$220
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 10/58:59 pmONT - SWF
3 stops34h 27mMultiple Airlines
Deal found 8/27$223
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 11/1410:43 pmONT - SWF
2 stops57h 28mMultiple Airlines
Deal found 8/27$227

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 August 28, 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 10/22

8:00 am-10:41 am

3 stops47h 41m

$189

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Wed 10/15

8:00 am-10:41 am

3 stops47h 41m

$196

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Thu 10/23

6:05 am-10:41 am

3 stops25h 36m

$200

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Thu 10/2

6:00 am-11:21 am

3 stops26h 21m

$200

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Tue 9/30

8:59 pm-11:21 am

3 stops59h 22m

$220

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Sun 10/5

8:59 pm-10:26 am

3 stops34h 27m

$223

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Fri 11/14

10:43 pm-11:11 am

2 stops57h 28m

$227

OntarioNew Windsor

ONT - SWF

ONTSWF

Ontario

Fri 9/12

8:59 pm-11:03 am

3 stops59h 04m

$241

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/26

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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