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Key West

$213+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EYW
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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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 November 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/31. 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 12/152:20 pmYYZ - EYW
1 stop20h 45mMultiple Airlines
Mon 12/229:57 amEYW - YYZ
1 stop11h 22mMultiple Airlines
Deal found 10/31$315
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/177:15 amYYZ - EYW
1 stop25h 00mMultiple Airlines
Wed 12/242:30 pmEYW - YYZ
1 stop8h 50mMultiple Airlines
Deal found 11/2$347
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/167:10 amYYZ - EYW
1 stop13h 36mMultiple Airlines
Thu 11/208:55 amEYW - YYZ
1 stop8h 58mMultiple Airlines
Deal found 11/2$360
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 12/138:20 pmYYZ - EYW
1 stop11h 55mMultiple Airlines
Sat 12/207:47 amEYW - YYZ
1 stop13h 32mMultiple Airlines
Deal found 10/31$375
This Mytrip deal was found by Cheapflights users on 10/31. 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.
Sat 11/297:10 amYYZ - EYW
1 stop7h 41mMultiple Airlines
Sat 12/62:30 pmEYW - YYZ
2 stops9h 41mMultiple Airlines
Deal found 10/31$385
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/168:30 pmYYZ - EYW
2 stops13h 37mMultiple Airlines
Sat 12/207:47 amEYW - YYZ
1 stop13h 32mMultiple Airlines
Deal found 11/1$409
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/164:35 pmYUL - EYW
1 stop15h 40mMultiple Airlines
Wed 11/1910:47 amEYW - YUL
2 stops13h 56mMultiple Airlines
Deal found 11/2$494
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/24:35 pmYUL - EYW
1 stop15h 40mMultiple Airlines
Thu 11/612:15 pmEYW - YUL
2 stops28h 40mMultiple Airlines
Deal found 11/1$635
This Delta deal was found by Cheapflights users on 11/2. 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.
Sun 11/167:00 amYUL - EYW
1 stop7h 03mDelta
Wed 11/197:40 amEYW - YUL
1 stop9h 41mDelta
Deal found 11/2$672
This FlightHub deal was found by Cheapflights users on 11/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:45 amYUL - EYW
2 stops31h 18mWestJet
Wed 11/1912:26 pmEYW - YUL
2 stops36h 17mWestJet
Deal found 11/2$774
This FlightHub deal was found by Cheapflights users on 11/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/212:36 pmYUL - EYW
1 stop7h 30mWestJet
Thu 11/66:17 pmEYW - YUL
1 stop5h 31mWestJet
Deal found 11/1$812
This deal was found by Cheapflights users on 11/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:00 amYUL - EYW
1 stop6h 51mUnited Airlines
Mon 12/82:47 pmEYW - YUL
1 stop6h 55mUnited Airlines
Deal found 11/1$916

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 November 2, 2025.

Round-trip from

$335
(Kiwi.com)

One-way from

$213
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$651
From Ontario to Key West
Search Deals
One-way flight from Ontario to Key West
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 2, 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

Sat 1/10

7:10 am-9:26 am

1 stop26h 16m

Key West

Fri 1/16

1:06 pm-12:11 am

1 stop11h 05m

$335

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Wed 12/17

7:15 am-8:15 am

1 stop25h 00m

Key West

Wed 12/24

2:30 pm-11:20 pm

1 stop8h 50m

$347

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 11/16

7:10 am-8:46 pm

1 stop13h 36m

Key West

Thu 11/20

8:55 am-5:53 pm

1 stop8h 58m

$360

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 12/13

8:20 pm-8:15 am

1 stop11h 55m

Key West

Sat 12/20

7:47 am-9:19 pm

1 stop13h 32m

$375

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 11/29

7:10 am-2:51 pm

1 stop7h 41m

Key West

Sat 12/6

2:30 pm-12:11 am

2 stops9h 41m

$385

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Mon 2/16

6:45 am-1:30 pm

1 stop6h 45m

Key West

Thu 2/19

9:46 am-8:14 pm

2 stops10h 28m

$387

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Thu 1/1

4:35 pm-12:30 pm

1 stop19h 55m

Key West

Tue 1/27

2:25 pm-3:10 pm

1 stop24h 45m

$433

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sun 11/16

4:35 pm-8:15 am

1 stop15h 40m

Key West

Wed 11/19

10:47 am-12:43 am

2 stops13h 56m

$494

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Tue 3/31

6:00 am-5:13 pm

2 stops11h 13m

Key West

Wed 4/1

6:00 pm-11:54 pm

1 stop5h 54m

$590

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 12/5

2:20 pm-4:56 pm

1 stop26h 36m

$213

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 12 results
1
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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.

  • 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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