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Key West

$225+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — EYW
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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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 March 31, 2025.

Round-trip from

$391
(Kiwi.com)

One-way from

$225
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$697
From Ontario to Key West
Search Deals
One-way flight from Ontario to Key West
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/72:55 pmYYZ - EYW
1 stop27h 10mMultiple Airlines
Tue 4/158:45 amEYW - YYZ
1 stop8h 42mMultiple Airlines
Deal found 3/31$381
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Thu 5/296:45 amYUL - EYW
1 stop11h 20mMultiple Airlines
Wed 6/48:45 amEYW - YUL
2 stops15h 52mMultiple Airlines
Deal found 3/29$391
This United Airlines deal was found by Cheapflights users on 3/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/276:40 pmYUL - EYW
2 stops23h 25mUnited Airlines
Fri 6/68:45 amEYW - YUL
2 stops28h 24mUnited Airlines
Deal found 3/29$434
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/12:30 pmYYZ - EYW
2 stops27h 35mUnited Airlines
Wed 4/306:45 pmEYW - YYZ
2 stops19h 53mUnited Airlines
Deal found 3/30$498
This Delta deal was found by Cheapflights users on 3/30. 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 5/186:15 amYYZ - EYW
2 stops13h 52mDelta
Thu 5/226:25 pmEYW - YYZ
1 stop5h 30mDelta
Deal found 3/30$508
This Delta deal was found by Cheapflights users on 3/29. 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.
Tue 5/276:05 amYUL - EYW
2 stops14h 02mDelta
Mon 6/26:25 pmEYW - YUL
1 stop5h 29mDelta
Deal found 3/29$515
This American Airlines deal was found by Cheapflights users on 3/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/27:00 amYUL - EYW
1 stop5h 51mAmerican Airlines
Mon 6/23:17 pmEYW - YUL
1 stop7h 27mAmerican Airlines
Deal found 3/29$617
This WestJet deal was found by Cheapflights users on 3/30. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/151:25 pmYYZ - EYW
1 stop28h 05mWestJet
Thu 5/227:00 amEYW - YYZ
1 stop16h 55mWestJet
Deal found 3/30$620
This American Airlines deal was found by Cheapflights users on 3/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/127:30 amYYZ - EYW
2 stops9h 10mAmerican Airlines
Mon 5/195:24 pmEYW - YYZ
1 stop17h 41mAmerican Airlines
Deal found 3/29$675
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 8/107:00 amYUL - EYW
1 stop6h 09mWestJet
Wed 8/2011:45 amEYW - YUL
1 stop5h 25mWestJet
Deal found 3/29$742

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 March 31, 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

Thu 5/29

6:45 am-6:05 pm

1 stop11h 20m

Key West

Wed 6/4

8:45 am-12:37 am

2 stops15h 52m

$391

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Tue 5/27

6:40 pm-6:05 pm

2 stops23h 25m

Key West

Mon 6/2

6:45 pm-7:45 pm

2 stops25h 00m

$434

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 5/18

8:00 pm-4:41 pm

2 stops20h 41m

Key West

Thu 5/22

4:06 pm-11:55 pm

2 stops31h 49m

$487

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 5/18

6:15 am-12:56 pm

1 stop6h 41m

Key West

Thu 5/22

1:51 pm-9:56 pm

1 stop8h 05m

$508

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Tue 5/27

6:05 am-8:07 pm

2 stops14h 02m

Key West

Mon 6/2

6:25 pm-11:54 pm

1 stop5h 29m

$515

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 5/12

2:45 pm-8:00 am

2 stops17h 15m

Key West

Mon 5/19

8:45 am-10:36 pm

2 stops13h 51m

$518

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Mon 6/2

7:00 am-12:51 pm

1 stop5h 51m

Key West

Mon 6/2

3:17 pm-10:44 pm

1 stop7h 27m

$617

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Thu 5/15

1:25 pm-5:30 pm

1 stop28h 05m

Key West

Thu 5/22

7:00 am-11:55 pm

1 stop16h 55m

$620

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 5/12

7:30 am-4:40 pm

2 stops9h 10m

Key West

Mon 5/19

5:24 pm-11:05 am

1 stop17h 41m

$675

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sun 8/10

7:00 am-1:09 pm

1 stop6h 09m

Key West

Wed 8/20

11:45 am-5:10 pm

1 stop5h 25m

$742

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 12 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 month to book a flight from Region of Ontario to Key West?

Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Key West (average of $328). Flying from Region of Ontario to Key West in March is currently the most expensive (average of $493). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 March 31, 2025.

When flying from Region of Ontario to Key West, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated March 31, 2025.
To help decide which airline to fly from Ontario to Key West, see what other customers have to say about Delta, United Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
United Airlines
7.4
Good
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
WestJet
7.2
Good
2,789 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.

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.

  • What is the cheapest month to book a flight from Region of Ontario to Key West?

    Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Key West (average of $328). Flying from Region of Ontario to Key West in March is currently the most expensive (average of $493). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 2,558,603 searches. Data last updated March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$456Average$572FlexibilityNo cancel feeOn-time71%
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