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Key West

$163+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EYW
Mar 25 — Apr 11
Wed 3/25
Wed 4/1
1 adult, Economy
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Cheap 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 February 23, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/19. 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 3/298:00 pm
YYZ
-
EYW
1 stop16h 26m
Multiple Airlines
Wed 4/111:51 am
EYW
-
YYZ
1 stop12h 23m
Multiple Airlines
Deal found 2/19$278
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 3/288:20 pm
YYZ
-
EYW
1 stop12h 46m
Multiple Airlines
Wed 4/111:51 am
EYW
-
YYZ
1 stop12h 23m
Multiple Airlines
Deal found 2/19$280
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 3/298:00 pm
YYZ
-
EYW
1 stop16h 26m
Multiple Airlines
Fri 4/39:49 am
EYW
-
YYZ
1 stop13h 41m
Multiple Airlines
Deal found 2/19$288
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 3/288:20 pm
YYZ
-
EYW
1 stop12h 46m
Multiple Airlines
Fri 4/39:49 am
EYW
-
YYZ
1 stop13h 41m
Multiple Airlines
Deal found 2/19$290
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
Mon 3/3010:15 am
YYZ
-
EYW
1 stop26h 06m
Multiple Airlines
Thu 4/29:46 am
EYW
-
YYZ
1 stop14h 28m
Multiple Airlines
Deal found 2/19$293
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
Mon 3/3010:15 am
YYZ
-
EYW
1 stop26h 06m
Multiple Airlines
Fri 4/39:49 am
EYW
-
YYZ
1 stop13h 41m
Multiple Airlines
Deal found 2/19$303
This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Mon 4/610:15 am
YYZ
-
EYW
1 stop26h 06m
Multiple Airlines
Fri 4/102:35 pm
EYW
-
YYZ
1 stop8h 45m
Multiple Airlines
Deal found 2/21$320
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
Mon 3/305:15 pm
YYZ
-
EYW
2 stops18h 15m
Multiple Airlines
Wed 4/111:51 am
EYW
-
YYZ
1 stop12h 23m
Multiple Airlines
Deal found 2/19$334
This Kiwi.com deal was found by Cheapflights users on 2/21. 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 4/77:15 am
YYZ
-
EYW
2 stops27h 56m
Multiple Airlines
Tue 4/1412:25 pm
EYW
-
YYZ
1 stop25h 40m
Multiple Airlines
Deal found 2/21$336
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:45 am
YUL
-
EYW
1 stop6h 52m
Multiple Airlines
Fri 3/272:35 pm
EYW
-
YUL
1 stop10h 10m
Multiple Airlines
Deal found 2/19$382
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 4/86:45 am
YUL
-
EYW
1 stop28h 45m
Multiple Airlines
Wed 4/1511:51 am
EYW
-
YUL
1 stop12h 39m
Multiple Airlines
Deal found 2/22$400
This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Mon 3/238:00 am
YUL
-
EYW
1 stop27h 30m
Multiple Airlines
Mon 3/302:35 pm
EYW
-
YUL
2 stops33h 55m
Multiple Airlines
Deal found 2/21$412

Find 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 February 23, 2026.

Round-trip from

$320
(Kiwi.com)

One-way from

$163
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$650
From Ontario to Key West
Search Deals
One-way flight from Ontario to Key West
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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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 February 23, 2026.
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

Sun 3/29

8:00 pm-12:26 pm

1 stop16h 26m

Key West

Wed 4/1

11:51 am-12:14 am

1 stop12h 23m

$278

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 3/29

8:00 pm-12:26 pm

1 stop16h 26m

Key West

Thu 4/2

9:46 am-12:14 am

1 stop14h 28m

$278

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 3/28

8:20 pm-9:06 am

1 stop12h 46m

Key West

Thu 4/2

9:46 am-12:14 am

1 stop14h 28m

$280

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 3/28

8:20 pm-9:06 am

1 stop12h 46m

Key West

Wed 4/1

11:51 am-12:14 am

1 stop12h 23m

$280

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 3/29

8:00 pm-12:26 pm

1 stop16h 26m

Key West

Fri 4/3

9:49 am-11:30 pm

1 stop13h 41m

$288

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 3/30

10:15 am-12:21 pm

1 stop26h 06m

Key West

Wed 4/1

11:51 am-12:14 am

1 stop12h 23m

$293

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 3/30

10:15 am-12:21 pm

1 stop26h 06m

Key West

Thu 4/2

9:46 am-12:14 am

1 stop14h 28m

$293

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 3/30

10:15 am-12:21 pm

1 stop26h 06m

Key West

Fri 4/3

9:49 am-11:30 pm

1 stop13h 41m

$303

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 3/13

6:45 am-1:37 pm

1 stop6h 52m

Key West

Fri 3/27

2:35 pm-12:45 am

1 stop10h 10m

$382

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Wed 4/8

6:45 am-9:06 am

2 stops26h 21m

Key West

Wed 4/15

11:51 am-12:30 am

1 stop12h 39m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 21 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 57m. Delta provides one of the quickest options available for as low as $572. 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.

See more FAQs

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Alternative routes for Ontario to Key West

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