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Cheap flights from Ontario to Key West from C$ 228

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EYW
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Round-trip from

C$ 391

One-way from

C$ 228

Popular in

September

Cheapest in

October

Average price

C$ 1,466
30/10-6/11
  • 30/10-6/11
  • 2 total stops
  • 30h 16m total
  • Ontario to Key West
Search Deals
29/10
  • 29/10
  • 1 total stop
  • 15h 00m total
  • Ontario to Key West
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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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 16 September 2025.

Thu 30/105:15 p.m.YYZ - EYW
1 stop15h 00mMultiple Airlines
Thu 6/118:55 a.m.EYW - YYZ
1 stop15h 16mMultiple Airlines
Deal found 15/9C$ 391
Wed 29/105:15 p.m.YYZ - EYW
1 stop15h 00mMultiple Airlines
Wed 5/1110:47 a.m.EYW - YYZ
1 stop10h 32mMultiple Airlines
Deal found 13/9C$ 430
Thu 30/105:15 p.m.YYZ - EYW
1 stop15h 00mMultiple Airlines
Wed 5/1110:01 a.m.EYW - YYZ
1 stop11h 18mMultiple Airlines
Deal found 14/9C$ 431
Sat 15/115:15 p.m.YYZ - EYW
1 stop15h 00mMultiple Airlines
Sat 22/1110:47 a.m.EYW - YYZ
1 stop10h 32mMultiple Airlines
Deal found 15/9C$ 513
Fri 31/1010:35 a.m.YUL - EYW
2 stops23h 32mMultiple Airlines
Fri 7/118:55 a.m.EYW - YUL
1 stop15h 35mMultiple Airlines
Deal found 15/9C$ 601
Wed 29/1010:20 a.m.YYZ - EYW
2 stops9h 46mDelta
Wed 5/117:40 a.m.EYW - YYZ
2 stops13h 02mDelta
Deal found 13/9C$ 742
Wed 29/102:15 p.m.YYZ - EYW
3 stops23h 37mUnited Airlines
Wed 5/113:00 p.m.EYW - YYZ
2 stops17h 17mUnited Airlines
Deal found 13/9C$ 767
Wed 29/106:00 a.m.YUL - EYW
2 stops11h 21mDelta
Wed 5/117:40 a.m.EYW - YUL
2 stops11h 00mDelta
Deal found 14/9C$ 803
Wed 29/107:29 a.m.YUL - EYW
1 stop8h 38mAmerican Airlines
Wed 5/112:01 p.m.EYW - YUL
1 stop25h 10mAmerican Airlines
Deal found 14/9C$ 805
Sun 28/98:00 p.m.YYZ - EYW
1 stop15h 52mMultiple Airlines
Wed 1/1010:47 a.m.EYW - YYZ
2 stops11h 04mMultiple Airlines
Deal found 14/9C$ 807
Sat 25/108:55 p.m.YYZ - EYW
2 stops16h 57mUnited Airlines
Wed 29/102:48 p.m.EYW - YYZ
1 stop6h 36mUnited Airlines
Deal found 15/9C$ 810
Fri 31/107:29 a.m.YUL - EYW
1 stop5h 42mAmerican Airlines
Fri 7/115:09 p.m.EYW - YUL
1 stop5h 50mAmerican Airlines
Deal found 15/9C$ 845

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 16 September 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

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 31/10

10:35 a.m.-10:07 a.m.

2 stops23h 32m

Key West

Fri 7/11

8:55 a.m.-12:30 a.m.

1 stop15h 35m

C$ 601

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 18/1

5:15 p.m.-12:44 p.m.

2 stops19h 29m

Key West

Fri 30/1

7:00 a.m.-11:23 p.m.

2 stops16h 23m

C$ 738

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 19/1

5:00 p.m.-12:44 p.m.

1 stop19h 44m

Key West

Wed 28/1

1:30 p.m.-11:23 p.m.

1 stop9h 53m

C$ 738

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 20/1

6:45 p.m.-12:44 p.m.

1 stop17h 59m

Key West

Wed 28/1

1:30 p.m.-11:23 p.m.

1 stop9h 53m

C$ 738

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Wed 21/1

7:59 a.m.-7:44 p.m.

2 stops11h 45m

Key West

Fri 30/1

7:00 a.m.-11:23 p.m.

2 stops16h 23m

C$ 738

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 19/1

5:00 p.m.-12:44 p.m.

1 stop19h 44m

Key West

Thu 29/1

1:30 p.m.-5:54 p.m.

1 stop28h 24m

C$ 738

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 17/1

2:10 p.m.-12:44 p.m.

1 stop22h 34m

Key West

Thu 29/1

6:00 p.m.-9:33 a.m.

2 stops15h 33m

C$ 738

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 17/1

5:15 p.m.-12:44 p.m.

2 stops19h 29m

Key West

Fri 30/1

7:00 a.m.-8:33 p.m.

2 stops13h 33m

C$ 738

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Wed 29/10

6:00 a.m.-5:21 p.m.

2 stops11h 21m

Key West

Wed 5/11

7:40 a.m.-6:40 p.m.

2 stops11h 00m

C$ 803

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Wed 29/10

7:29 a.m.-4:07 p.m.

1 stop8h 38m

Key West

Wed 5/11

2:01 p.m.-3:11 p.m.

1 stop25h 10m

C$ 805

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 20 results
1
2

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 16 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Key West as you normally would.

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 8h 38m. Your travel time can differ by up to 11h 34m. Airlines will cover a distance of 2432 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 Toronto Pearson Intl - Key West, Montreal Pierre Elliott Trudeau Intl - Key West or London - 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 3 airlines flying from Ontario to Key West

Discover the top 3 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 677AverageC$ 791FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 786AverageC$ 944FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 819AverageC$ 973FlexibilityNo 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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