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Cheap flights from Ontario to Key West from C$ 237

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EYW
17 Jan — 24 Jan1
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 18 December 2025.

Thu 18/127:15 a.m.YYZ - EYW
2 stops26h 02mMultiple Airlines
Wed 24/127:47 a.m.EYW - YYZ
1 stop13h 32mMultiple Airlines
Deal found 15/12C$ 718
Tue 23/123:40 p.m.YYZ - EYW
1 stop21h 50mMultiple Airlines
Sun 28/1212:20 p.m.EYW - YYZ
1 stop9h 52mMultiple Airlines
Deal found 14/12C$ 754
Mon 22/127:10 a.m.YYZ - EYW
2 stops25h 29mMultiple Airlines
Mon 29/129:57 a.m.EYW - YYZ
1 stop7h 15mMultiple Airlines
Deal found 15/12C$ 911
Thu 18/1210:20 a.m.YYZ - EYW
2 stops9h 46mDelta
Wed 24/121:02 p.m.EYW - YYZ
2 stops9h 48mDelta
Deal found 15/12C$ 1,201
Mon 22/127:08 a.m.YUL - EYW
1 stop8h 49mAmerican Airlines
Mon 22/128:30 p.m.EYW - YUL
2 stops15h 50mAmerican Airlines
Deal found 15/12C$ 1,254
Fri 26/126:20 p.m.YUL - EYW
1 stop16h 32mWestJet
Mon 29/1211:47 a.m.EYW - YUL
1 stop5h 28mWestJet
Deal found 17/12C$ 1,433
Fri 26/122:40 p.m.YUL - EYW
2 stops16h 27mMultiple Airlines
Mon 29/122:30 p.m.EYW - YUL
1 stop25h 53mMultiple Airlines
Deal found 17/12C$ 1,494

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 18 December 2025.

Round-trip from

C$ 427

One-way from

C$ 237

Popular in

December

Cheapest in

May

Average price

C$ 1,060
31/1-7/2
  • 31/1-7/2
  • 3 total stops
  • 29h 28m total
  • Ontario to Key West
Search Deals
31/1
  • 31/1
  • 2 total stops
  • 27h 06m total
  • Ontario to Key West
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 629,999 searches. Data last updated 18 December 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

Sun 18/1

11:15 a.m.-1:30 p.m.

1 stop26h 15m

Key West

Sun 25/1

10:06 a.m.-2:20 p.m.

1 stop28h 14m

C$ 379

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 31/1

2:15 p.m.-10:21 a.m.

1 stop20h 06m

Key West

Sat 7/2

10:49 a.m.-8:11 p.m.

2 stops9h 22m

C$ 427

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 9/1

7:00 a.m.-1:30 p.m.

1 stop6h 30m

Key West

Mon 12/1

2:25 p.m.-10:12 p.m.

1 stop7h 47m

C$ 434

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 7/3

8:20 p.m.-8:06 a.m.

1 stop11h 46m

Key West

Thu 12/3

9:46 a.m.-8:10 p.m.

2 stops10h 24m

C$ 492

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Thu 22/1

5:15 p.m.-1:30 p.m.

2 stops20h 15m

Key West

Sun 25/1

12:51 p.m.-2:20 p.m.

2 stops25h 29m

C$ 500

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sun 11/1

8:00 a.m.-1:30 p.m.

1 stop29h 30m

Key West

Sun 18/1

12:51 p.m.-12:43 a.m.

2 stops35h 52m

C$ 500

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 30/1

6:45 a.m.-9:26 a.m.

2 stops50h 41m

Key West

Fri 6/2

1:06 p.m.-12:30 a.m.

1 stop11h 24m

C$ 555

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 30/1

7:00 a.m.-1:30 p.m.

1 stop6h 30m

Key West

Fri 6/2

2:25 p.m.-11:28 a.m.

1 stop21h 03m

C$ 572

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 10/1

2:25 p.m.-11:29 a.m.

2 stops21h 04m

Key West

Wed 14/1

6:06 p.m.-11:50 p.m.

1 stop5h 44m

C$ 751

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 10/1

9:15 a.m.-4:22 p.m.

1 stop7h 07m

Key West

Wed 14/1

2:25 p.m.-9:42 p.m.

1 stop7h 17m

C$ 840

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 19 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

What is the cheapest time of day to fly from ON to EYW?

Find hourly flight availability from Ontario to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2025.

When flying from Region of Ontario to Key West, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 61% versus a flight in the afternoon.

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?

    United Airlines can get you from Region of Ontario to Key West in just under 12h 35m. Your travel time can differ by up to . Airlines will cover a distance of 2054 km.

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

    Most travellers choose Toronto Pearson Intl - Key West, Montreal Pierre Elliott Trudeau 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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Top 2 airlines flying from Ontario to Key West

Discover the top 2 airlines 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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 784AverageC$ 959FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 816AverageC$ 971FlexibilityNo cancel feeOn-time69%
Search United Airlines 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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