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$187+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
SWF — ONT
Aug 7 — Aug 141
Fri 8/7
Fri 8/14
1 adult, Economy
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Cheap 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 July 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/7. 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 8/2810:56 am
SWF
-
ONT
2 stops31h 58m
Multiple Airlines
Deal found 7/7$187
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 8/215:39 pm
SWF
-
ONT
2 stops28h 22m
Multiple Airlines
Deal found 7/7$216
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 8/2912:05 pm
SWF
-
ONT
3 stops24h 59m
Multiple Airlines
Deal found 7/6$220
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 9/310:33 am
SWF
-
ONT
2 stops40h 17m
Multiple Airlines
Deal found 7/7$222
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 8/1912:05 pm
SWF
-
ONT
3 stops24h 59m
Multiple Airlines
Deal found 7/3$223
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 10/1012:39 pm
SWF
-
ONT
3 stops48h 42m
Multiple Airlines
Deal found 7/7$226
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 10/410:56 am
SWF
-
ONT
2 stops26h 47m
Multiple Airlines
Deal found 7/6$232
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 9/1310:56 am
SWF
-
ONT
2 stops30h 41m
Multiple Airlines
Deal found 7/7$238

Find 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 July 8, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Popular in

June

Cheapest in

January

Average price

$369
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. 12% potential increase in price ($57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 8, 2026.
Use the filters below to find and compare flights from New Windsor to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Fri 8/28

12:17 pm-3:54 pm

3 stops30h 37m

$224

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Sun 9/13

10:56 am-2:37 pm

2 stops30h 41m

$243

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Tue 8/18

11:48 am-3:54 pm

2 stops31h 06m

$253

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Sun 10/11

11:53 am-4:10 pm

3 stops55h 17m

$268

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Tue 8/4

11:48 am-3:14 pm

2 stops30h 26m

$276

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Wed 8/12

12:05 pm-3:54 pm

3 stops30h 49m

$277

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Sat 8/1

12:05 pm-11:50 pm

3 stops38h 45m

$279

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Mon 8/17

12:17 pm-3:54 pm

3 stops30h 37m

$285

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Sun 8/2

10:33 am-10:04 am

2 stops26h 31m

$287

New WindsorOntario

SWF - ONT

SWFONT

New Windsor Stewart

Fri 8/7

6:01 pm-11:50 pm

3 stops32h 49m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/7

Showing 1-10 of 11 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on New Windsor-Ontario flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on New Windsor-Ontario flight deals on Cheapflights vs. Expedia <90% 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 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 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.

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.

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