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Cheap flights from Ontario to Key West from C$ 227

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EYW
22 May — 29 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Key West

Enter your travel dates to find the best prices.

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 22 April 2026.

Mon 25/58:10 a.m.
YYZ
-
EYW
1 stop28h 24m
Multiple Airlines
Fri 29/52:51 p.m.
EYW
-
YYZ
1 stop8h 44m
Multiple Airlines
Deal found 22/4C$ 507
Thu 23/48:00 p.m.
YYZ
-
EYW
1 stop18h 43m
Multiple Airlines
Thu 30/42:09 p.m.
EYW
-
YYZ
2 stops45h 26m
Multiple Airlines
Deal found 18/4C$ 599
Mon 13/71:30 p.m.
YYZ
-
EYW
2 stops23h 04m
Multiple Airlines
Mon 20/712:07 p.m.
EYW
-
YYZ
1 stop7h 58m
Multiple Airlines
Deal found 20/4C$ 613
Mon 18/58:10 a.m.
YYZ
-
EYW
1 stop28h 24m
Multiple Airlines
Mon 25/511:52 a.m.
EYW
-
YYZ
2 stops22h 27m
Multiple Airlines
Deal found 18/4C$ 709
Sat 9/59:30 a.m.
YUL
-
EYW
1 stop28h 12m
Delta
Fri 15/52:32 p.m.
EYW
-
YUL
1 stop23h 07m
Delta
Deal found 20/4C$ 724
Sat 9/52:29 p.m.
YUL
-
EYW
1 stop23h 13m
Delta
Thu 14/52:32 p.m.
EYW
-
YUL
1 stop18h 07m
Delta
Deal found 20/4C$ 750
Tue 12/52:29 p.m.
YUL
-
EYW
1 stop23h 13m
Delta
Fri 15/52:32 p.m.
EYW
-
YUL
1 stop18h 07m
Delta
Deal found 20/4C$ 751
Fri 1/55:50 p.m.
YYZ
-
EYW
2 stops39h 16m
Multiple Airlines
Mon 11/512:07 p.m.
EYW
-
YYZ
1 stop7h 58m
Multiple Airlines
Deal found 17/4C$ 775
Mon 11/52:29 p.m.
YUL
-
EYW
1 stop23h 13m
Delta
Thu 14/52:32 p.m.
EYW
-
YUL
1 stop18h 07m
Delta
Deal found 20/4C$ 777
Sun 10/57:44 p.m.
YUL
-
EYW
2 stops16h 43m
Delta
Fri 15/52:32 p.m.
EYW
-
YUL
1 stop23h 07m
Delta
Deal found 20/4C$ 808
Wed 13/59:30 a.m.
YUL
-
EYW
2 stops7h 53m
Delta
Fri 15/52:32 p.m.
EYW
-
YUL
1 stop18h 07m
Delta
Deal found 20/4C$ 821
Tue 14/76:00 a.m.
YYZ
-
EYW
1 stop6h 14m
American Airlines
Thu 16/711:28 a.m.
EYW
-
YYZ
1 stop5h 43m
American Airlines
Deal found 20/4C$ 831

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 22 April 2026.

Round-trip from

C$ 613

One-way from

C$ 227

Popular in

March

Cheapest in

January

Average price

C$ 978
13/7-20/7
  • 13/7-20/7
  • 3 total stops
  • 31h 02m total
  • Ontario to Key West
Search Deals
5/10
  • 5/10
  • 1 total stop
  • 28h 26m total
  • Ontario to Key West
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 91 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 629,999 searches. Data last updated 22 April 2026.
Use the filters below to find and compare flights from Ontario to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 25/5

1:30 p.m.-12:34 p.m.

2 stops23h 04m

Key West

Fri 29/5

2:51 p.m.-11:35 p.m.

1 stop8h 44m

C$ 576

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 18/5

8:10 a.m.-12:34 p.m.

1 stop28h 24m

Key West

Mon 25/5

11:52 a.m.-10:19 a.m.

2 stops22h 27m

C$ 709
Quickest round-trip

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 14/7

6:00 a.m.-12:14 p.m.

1 stop6h 14m

Key West

Thu 16/7

11:28 a.m.-5:11 p.m.

1 stop5h 43m

C$ 831

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 7/6

7:30 a.m.-1:30 p.m.

1 stop6h 00m

Key West

Thu 11/6

2:26 p.m.-10:23 p.m.

1 stop7h 57m

C$ 833

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 14/7

6:10 a.m.-1:29 p.m.

2 stops7h 19m

Key West

Thu 16/7

2:24 p.m.-11:58 p.m.

1 stop9h 34m

C$ 833

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 5/6

1:10 p.m.-1:30 p.m.

2 stops24h 20m

Key West

Mon 8/6

2:26 p.m.-10:06 p.m.

1 stop7h 40m

C$ 833

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

9:28 a.m.-7:45 p.m.

2 stops10h 17m

Key West

Tue 22/9

2:35 p.m.-11:56 p.m.

1 stop9h 21m

C$ 834

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

9:28 a.m.-7:45 p.m.

2 stops10h 17m

Key West

Fri 18/9

2:35 p.m.-11:56 p.m.

1 stop9h 21m

C$ 834

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Thu 7/5

7:55 a.m.-7:49 p.m.

2 stops11h 54m

Key West

Fri 15/5

2:32 p.m.-11:41 p.m.

1 stop9h 09m

C$ 866

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sun 18/10

7:00 a.m.-5:11 p.m.

1 stop10h 11m

Key West

Thu 22/10

7:00 a.m.-5:03 p.m.

1 stop10h 03m

C$ 866

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/4

Showing 1-10 of 38 resultsSorted by cheapest first
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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

Weekly flight availability from Region of Ontario to Key West

Explore weekly flight availability from Ontario to Key West. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 22 April 2026.

The most flights from CAON to EYW are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Region of Ontario to Key West?

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?

    If you book a flight to Key West from Ontario, you will be flying to Key West, which is the city’s only airport. Key West (EYW) is located 4.2 km from the centre of Key West.

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

    American Airlines, United Airlines, and Delta can get you from Region of Ontario to Key West in just under 6h. Your travel time can differ by up to 4h 17m. Airlines will cover a distance of 2134 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Region of Ontario to Key West?

    Most travellers choose Montreal Pierre Elliott Trudeau Intl - Key West, Toronto Pearson Intl - Key West or Toronto Island - Key West when deciding on the best route from Region of 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

Browse thousands of different options on Cheapflights for your next trip

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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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Top airline flying from Ontario to Key West

Discover the top airline that operate flights from Ontario to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 22 April 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 813AverageC$ 946FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Key West?

Cheapflights makes it easy to find Ontario to Key West flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Key West?

Cheapflights helps you find that perfect flight to Key West from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario to Key West with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Key West flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Key West become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Key West flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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