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Cheap flights from Ontario to Key West from C$ 389

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EYW
24 Aug — 31 Aug1
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 25 July 2026.

Mon 7/98:10 a.m.
YYZ
-
EYW
1 stop28h 24m
Multiple Airlines
Mon 14/910:59 a.m.
EYW
-
YYZ
1 stop9h 06m
Multiple Airlines
Deal found 24/7C$ 603
Sat 5/94:50 p.m.
YYZ
-
EYW
1 stop18h 35m
Multiple Airlines
Sat 12/910:04 a.m.
EYW
-
YYZ
2 stops28h 01m
Multiple Airlines
Deal found 22/7C$ 604
Sat 15/86:00 a.m.
YYZ
-
EYW
2 stops12h 40m
American Airlines
Sat 22/87:10 p.m.
EYW
-
YYZ
2 stops21h 35m
American Airlines
Deal found 21/7C$ 687
Sat 5/911:40 a.m.
YYZ
-
EYW
1 stop8h 17m
Delta
Sat 12/911:42 a.m.
EYW
-
YYZ
1 stop5h 37m
Delta
Deal found 22/7C$ 694
Sat 22/87:14 a.m.
YUL
-
EYW
1 stop11h 26m
American Airlines
Sat 29/82:31 p.m.
EYW
-
YUL
1 stop21h 56m
American Airlines
Deal found 24/7C$ 696
Sat 29/88:00 a.m.
YYZ
-
EYW
1 stop5h 45m
American Airlines
Sat 5/94:58 p.m.
EYW
-
YYZ
1 stop19h 01m
American Airlines
Deal found 21/7C$ 699
Sat 14/117:00 a.m.
YYZ
-
EYW
1 stop6h 08m
American Airlines
Sat 21/115:35 p.m.
EYW
-
YYZ
1 stop16h 41m
American Airlines
Deal found 20/7C$ 700
Fri 13/116:45 a.m.
YYZ
-
EYW
1 stop8h 31m
United Airlines
Wed 18/112:55 p.m.
EYW
-
YYZ
1 stop6h 29m
United Airlines
Deal found 21/7C$ 707
Tue 18/87:45 a.m.
YYZ
-
EYW
1 stop5h 15m
Multiple Airlines
Tue 25/81:14 p.m.
EYW
-
YYZ
2 stops48h 51m
Multiple Airlines
Deal found 20/7C$ 711
Fri 13/117:45 a.m.
YYZ
-
EYW
1 stop9h 26m
Delta
Wed 18/116:00 p.m.
EYW
-
YYZ
1 stop6h 01m
Delta
Deal found 24/7C$ 717
Sat 15/84:16 p.m.
YYZ
-
EYW
1 stop21h 29m
British Airways
Sat 22/84:58 p.m.
EYW
-
YYZ
1 stop20h 28m
British Airways
Deal found 21/7C$ 721
Thu 27/87:00 a.m.
YUL
-
EYW
1 stop10h 20m
Delta
Mon 31/86:15 p.m.
EYW
-
YUL
1 stop5h 37m
Delta
Deal found 20/7C$ 730

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 25 July 2026.

Round-trip from

C$ 603

One-way from

C$ 389
7/9-14/9
  • 7/9-14/9
  • 2 total stops
  • 37h 30m total
  • Ontario to Key West
Search Deals
Delta
  • Delta
  • 5/9
  • 1 total stop
  • 7h 52m total
  • Ontario to Key West
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 25 July 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 7/9

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

1 stop28h 24m

Key West

Mon 14/9

10:59 a.m.-9:55 p.m.

2 stops10h 56m

C$ 608

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 18/8

6:00 a.m.-1:00 p.m.

1 stop7h 00m

Key West

Tue 25/8

1:59 p.m.-11:57 p.m.

1 stop9h 58m

C$ 687

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 5/9

11:40 a.m.-7:57 p.m.

1 stop8h 17m

Key West

Sat 12/9

11:42 a.m.-5:19 p.m.

1 stop5h 37m

C$ 694

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 29/8

8:00 a.m.-1:45 p.m.

1 stop5h 45m

Key West

Sat 5/9

4:58 p.m.-11:59 a.m.

1 stop19h 01m

C$ 699

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 12/1

6:15 a.m.-1:08 p.m.

1 stop6h 53m

Key West

Fri 15/1

2:30 p.m.-9:31 a.m.

1 stop19h 01m

C$ 706

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 13/11

6:45 a.m.-3:16 p.m.

1 stop8h 31m

Key West

Wed 18/11

2:55 p.m.-9:24 p.m.

1 stop6h 29m

C$ 707
Quickest round-trip

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 12/1

8:35 a.m.-3:06 p.m.

1 stop6h 31m

Key West

Fri 15/1

2:30 p.m.-9:29 p.m.

1 stop6h 59m

C$ 708

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 18/8

7:45 a.m.-1:00 p.m.

1 stop5h 15m

Key West

Tue 25/8

1:14 p.m.-2:05 p.m.

2 stops48h 51m

C$ 711

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Thu 27/8

7:00 a.m.-5:20 p.m.

1 stop10h 20m

Key West

Mon 31/8

6:15 p.m.-11:52 p.m.

1 stop5h 37m

C$ 730

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 1/1

7:00 a.m.-5:08 p.m.

1 stop10h 08m

Key West

Fri 8/1

2:30 p.m.-9:40 p.m.

1 stop7h 10m

C$ 738

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/7

Showing 1-10 of 28 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

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?

    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?

    Delta, American Airlines, and United Airlines can get you from Region of Ontario to Key West in just under 5h 45m. Your travel time can differ by up to 4h 23m. 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

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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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Fly with Cheapflights

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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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