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Key West

$165+ Cheap flights from Ontario to Key West (EYW)

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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EYW
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Key West

Keep the following information in mind while searching for Ontario to Key West flight deals. Data was last updated septembre 15, 2025.

Round-trip from

$283
(Kiwi.com)

One-way from

$165
(Kiwi.com)

Popular in

September

Cheapest in

October

Average price

$1,061
From Ontario to Key West
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One-way flight from Ontario to Key West
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Highest demand for flights based on searches. 7% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($36 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 Key West

Cheapest flights from Ontario to Key West
Explore the most affordable flight options available from Ontario to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septembre 15, 2025.

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.
jeu. 10/305:15 pmYYZ - EYW
1 stop15h 00mMultiple Airlines
jeu. 11/68:55 amEYW - YYZ
1 stop15h 16mMultiple Airlines
Deal found 9/15$283
This Kiwi.com deal was found by Cheapflights users on 9/13. 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. 12/810:15 amYYZ - EYW
1 stop24h 50mMultiple Airlines
sam. 12/1310:47 amEYW - YYZ
1 stop10h 10mMultiple Airlines
Deal found 9/13$285
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
sam. 12/610:15 amYYZ - EYW
1 stop24h 04mMultiple Airlines
jeu. 12/118:55 amEYW - YYZ
1 stop15h 16mMultiple Airlines
Deal found 9/13$294
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
mer. 10/295:15 pmYYZ - EYW
1 stop15h 00mMultiple Airlines
mer. 11/510:47 amEYW - YYZ
1 stop10h 32mMultiple Airlines
Deal found 9/13$311
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.
jeu. 10/305:15 pmYYZ - EYW
1 stop15h 00mMultiple Airlines
mer. 11/510:01 amEYW - YYZ
1 stop11h 18mMultiple Airlines
Deal found 9/14$312
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.
sam. 11/155:15 pmYYZ - EYW
1 stop15h 00mMultiple Airlines
sam. 11/2210:47 amEYW - YYZ
1 stop10h 32mMultiple Airlines
Deal found 9/15$371
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/2910:20 amYYZ - EYW
2 stops9h 46mDelta
mer. 11/57:40 amEYW - YYZ
2 stops13h 02mDelta
Deal found 9/13$537
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/296:00 amYUL - EYW
2 stops11h 21mDelta
mer. 11/57:40 amEYW - YUL
2 stops11h 00mDelta
Deal found 9/14$581
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/297:29 amYUL - EYW
1 stop8h 38mAmerican Airlines
mer. 11/52:01 pmEYW - YUL
1 stop25h 10mAmerican Airlines
Deal found 9/14$583
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 10/57:00 amYUL - EYW
1 stop6h 02mDelta
jeu. 10/912:22 pmEYW - YUL
1 stop5h 12mDelta
Deal found 9/13$687
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 10/57:29 amYUL - EYW
1 stop6h 48mAmerican Airlines
jeu. 10/95:47 pmEYW - YUL
2 stops16h 03mAmerican Airlines
Deal found 9/14$695
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/297:00 pmYUL - EYW
3 stops18h 52mUnited Airlines
mer. 11/53:00 pmEYW - YUL
2 stops24h 16mUnited Airlines
Deal found 9/14$705

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Key West 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 septembre 15, 2025.
Use the filters below to find and compare flights from Ontario to Key West that are best for you.

Fly from

Ontario

Fly to

Key West

Route

Depart

Return

Price

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

jeu. 10/30

5:15 pm-8:15 am

1 stop15h 00m

Key West

jeu. 11/6

8:55 am-12:11 am

1 stop15h 16m

$283

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

lun. 12/8

10:15 am-11:05 am

1 stop24h 50m

Key West

sam. 12/13

10:47 am-8:57 pm

1 stop10h 10m

$285

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

sam. 12/6

10:15 am-10:19 am

1 stop24h 04m

Key West

jeu. 12/11

8:55 am-12:11 am

1 stop15h 16m

$294

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

mer. 10/29

5:15 pm-8:15 am

1 stop15h 00m

Key West

mer. 11/5

10:47 am-9:19 pm

1 stop10h 32m

$311

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

jeu. 10/30

5:15 pm-8:15 am

1 stop15h 00m

Key West

mer. 11/5

10:01 am-9:19 pm

1 stop11h 18m

$312

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

sam. 11/15

5:15 pm-8:15 am

1 stop15h 00m

Key West

sam. 11/22

10:47 am-9:19 pm

1 stop10h 32m

$371

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

jeu. 10/30

7:55 am-8:06 pm

2 stops12h 11m

Key West

mer. 11/5

12:22 pm-11:39 pm

2 stops11h 17m

$537

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

jeu. 10/30

8:55 pm-1:52 pm

2 stops16h 57m

Key West

jeu. 11/6

4:00 pm-8:17 am

2 stops16h 17m

$555

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

mer. 10/29

6:00 am-5:21 pm

2 stops11h 21m

Key West

mer. 11/5

7:40 am-6:40 pm

2 stops11h 00m

$581

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

mer. 10/29

7:29 am-4:07 pm

1 stop8h 38m

Key West

mer. 11/5

2:01 pm-3:11 pm

1 stop25h 10m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 22 results
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Best time to book a flight from Ontario to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West 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 Key West
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly into for flights to Key West from Ontario?

    Key West (EYW), located 2.6 mi from the city center, is the airport you fly into when you book flights from Ontario to Key West.

  • How long is the flight from Region of Ontario to Key West?

    A quick flight from Region of Ontario to Key West can take about 8h 38m. Delta provides one of the quickest options available for as low as $583. The distance from Region of Ontario to Key West is about 1511 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Ontario to Key West?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Key West 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 Region of Ontario to Key West?

    Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Key West (average of $328). Flying from Region of Ontario to Key West in March is currently the most expensive (average of $491). 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

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See prices for flight routes from nearby airports that may be better suited for you.
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