What is the cheapest airline that flies from Ontario to Key West?

American Airlines, United Airlines, and WestJet are the most popular carriers operating from Ontario to Key West

Which airlines fly to Key West?

WestJet, American Airlines and United Airlines are the top three most popular airlines that fly to Key West from Region of Ontario according to our data. WestJet is the first choice among our users, with 68% of people opting to fly with this airline when travelling to Key West. Keep in mind that there are 3 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario to Key West Airport?

Prices for flights from Ontario to Key West Airport are updated daily.

How many operators does momondo search for flights from Ontario to Key West Airport?

As of November 2025, there are 2 operators available to choose from for flights from Ontario to Key West Airport.

How old do you have to be to fly from Ontario to Key West Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Key West Airport.

What documentation or ID do you need to fly to Key West Airport?

The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 235 Cheap Flights from Ontario to Key West in 2025/26

1 adult

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Find the cheapest flights from Ontario to Key West

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:10 a.m. - 12:26 p.m.YYZ-EYW

29h 16m1 stop

9:46 a.m. - 2:20 p.m.EYW-YYZ

28h 34m1 stop

C$ 387Multiple Airlines

Find Deal

Thu, 5 Feb - Thu, 12 Feb

7:15 a.m. - 9:37 p.m.YYZ-EYW

14h 22m2 stops

9:46 a.m. - 2:20 p.m.EYW-YYZ

28h 34m1 stop

C$ 391Multiple Airlines

Find Deal

Thu, 5 Feb - Thu, 12 Feb

7:10 a.m. - 8:15 a.m.YYZ-EYW

25h 05m1 stop

12:20 p.m. - 2:20 p.m.EYW-YYZ

26h 00m2 stops

C$ 413Multiple Airlines

Find Deal

Sun, 7 Dec - Sun, 14 Dec

8:00 p.m. - 12:26 p.m.YYZ-EYW

16h 26m1 stop

12:15 p.m. - 8:10 p.m.EYW-YYZ

31h 55m2 stops

C$ 416Multiple Airlines

Find Deal

Sun, 1 Feb - Sun, 8 Feb

7:10 a.m. - 8:15 a.m.YYZ-EYW

25h 05m1 stop

8:55 a.m. - 11:43 a.m.EYW-YYZ

26h 48m1 stop

C$ 422Multiple Airlines

Find Deal

Sun, 7 Dec - Sun, 14 Dec

5:15 p.m. - 9:26 a.m.YYZ-EYW

16h 11m1 stop

10:49 a.m. - 8:57 p.m.EYW-YYZ

10h 08m1 stop

C$ 434Multiple Airlines

Find Deal

Sat, 10 Jan - Sat, 24 Jan

5:15 p.m. - 8:15 a.m.YYZ-EYW

15h 00m1 stop

4:34 p.m. - 2:20 p.m.EYW-YYZ

21h 46m1 stop

C$ 469Multiple Airlines

Find Deal

Wed, 10 Dec - Sun, 14 Dec

8:00 p.m. - 12:26 p.m.YYZ-EYW

16h 26m1 stop

9:46 a.m. - 11:26 a.m.EYW-YYZ

25h 40m1 stop

C$ 474Multiple Airlines

Find Deal

Sun, 1 Feb - Sun, 8 Feb

5:10 a.m. - 3:06 p.m.YXU-EYW

9h 56m2 stops

6:22 p.m. - 9:18 p.m.EYW-YXU

26h 56m2 stops

C$ 1,175United Airlines

Find Deal

Mon, 6 Apr - Thu, 9 Apr

9:25 a.m. - 11:41 a.m.YXU-EYW

26h 16m2 stops

4:08 p.m. - 8:46 a.m.EYW-YXU

16h 38m2 stops

C$ 1,345United Airlines

Find Deal

Sat, 20 Dec - Sat, 27 Dec

United Airlines flights from Region of Ontario to Key West

Our best United Airlines deals on Region of Ontario to Key West flight tickets

United Airlines

8 Jan

YUL6:00 p.m.Montreal Pierre Elliott Trudeau Intl

41h 26m

2 stops

EYW11:26 a.m.Key West

14 Jan

EYW6:05 p.m.Key West

21h 56m

2 stops

YUL4:01 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 728

Find similar

United Airlines

10 Jan

YYZ4:30 p.m.Toronto Pearson Intl

20h 33m

2 stops

EYW1:03 p.m.Key West

24 Jan

EYW2:05 p.m.Key West

21h 12m

2 stops

YYZ11:17 a.m.Toronto Pearson Intl

C$ 782

Find similar

United Airlines

2 Feb

YYZ6:25 p.m.Toronto Pearson Intl

18h 38m

2 stops

EYW1:03 p.m.Key West

5 Feb

EYW2:25 p.m.Key West

17h 52m

2 stops

YYZ8:17 a.m.Toronto Pearson Intl

C$ 783

Find similar

American Airlines flights from Region of Ontario to Key West

Our best American Airlines deals on Region of Ontario to Key West flight tickets

American Airlines

21 Dec

YYZ7:30 a.m.Toronto Pearson Intl

6h 17m

1 stop

EYW1:47 p.m.Key West

23 Dec

EYW11:13 a.m.Key West

5h 26m

1 stop

YYZ4:39 p.m.Toronto Pearson Intl

C$ 824

Find similar

American Airlines

31 Dec

YUL7:08 a.m.Montreal Pierre Elliott Trudeau Intl

15h 36m

1 stop

EYW10:44 p.m.Key West

7 Jan

EYW7:08 a.m.Key West

6h 37m

1 stop

YUL1:45 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 855

Find similar

American Airlines

29 Dec

YUL7:08 a.m.Montreal Pierre Elliott Trudeau Intl

15h 36m

1 stop

EYW10:44 p.m.Key West

10 Jan

EYW6:53 p.m.Key West

18h 52m

1 stop

YUL1:45 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 899

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Thu 5/2

7:10 a.m.-12:26 p.m.

1 stop29h 16m

Key West

Thu 12/2

9:46 a.m.-2:20 p.m.

1 stop28h 34m

C$ 387

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Thu 5/2

7:15 a.m.-9:37 p.m.

2 stops14h 22m

Key West

Thu 12/2

9:46 a.m.-2:20 p.m.

1 stop28h 34m

C$ 391

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 7/12

7:10 a.m.-8:15 a.m.

1 stop25h 05m

Key West

Sun 14/12

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

2 stops26h 00m

C$ 413

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 1/2

8:00 p.m.-12:26 p.m.

1 stop16h 26m

Key West

Sun 8/2

12:15 p.m.-8:10 p.m.

2 stops31h 55m

C$ 416

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 7/12

7:10 a.m.-8:15 a.m.

1 stop25h 05m

Key West

Sun 14/12

8:55 a.m.-11:43 a.m.

1 stop26h 48m

C$ 422

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 10/1

5:15 p.m.-9:26 a.m.

1 stop16h 11m

Key West

Sat 24/1

10:49 a.m.-8:57 p.m.

1 stop10h 08m

C$ 434

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Wed 10/12

5:15 p.m.-8:15 a.m.

1 stop15h 00m

Key West

Sun 14/12

4:34 p.m.-2:20 p.m.

1 stop21h 46m

C$ 469

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 1/2

8:00 p.m.-12:26 p.m.

1 stop16h 26m

Key West

Sun 8/2

9:46 a.m.-11:26 a.m.

1 stop25h 40m

C$ 474

LondonKey West

YXU - EYW

YXUEYW

London

Mon 6/4

5:10 a.m.-3:06 p.m.

2 stops9h 56m

Key West

Thu 9/4

6:22 p.m.-9:18 p.m.

2 stops26h 56m

C$ 1,175

LondonKey West

YXU - EYW

YXUEYW

London

Sat 20/12

9:25 a.m.-11:41 a.m.

2 stops26h 16m

Key West

Sat 27/12

4:08 p.m.-8:46 a.m.

2 stops16h 38m

C$ 1,345

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Key West?

According to our data, Wednesday is the cheapest day to fly to Key West from Region of Ontario. The lowest ticket price found for a Wednesday departure recently was C$ 850. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Key West on Saturday is C$ 972.

What is the cheapest time of day to depart on your flight to Key West?

Our most recent data shows that the best time of day to fly to Key West is at noon. Flights from Region of Ontario to Key West during this time can be as low as C$ 906. Try not to purchase tickets in the morning because they tend to be around C$ 934. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Region of Ontario to Key West flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Key West

Direct flights	None

There are no direct flights from Region of Ontario to Key West. There are no popular flight routes from Region of Ontario to Key West.

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When did momondo last update prices for flights from Ontario to Key West Airport?
Prices for flights from Ontario to Key West Airport are updated daily.
How many operators does momondo search for flights from Ontario to Key West Airport?
As of November 2025, there are 2 operators available to choose from for flights from Ontario to Key West Airport.
How old do you have to be to fly from Ontario to Key West Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Region of Ontario to Key West

Compare and see reviews for airlines that fly from Region of Ontario to Key West with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom C$ 686	Free Cancellation	Rating 7.2 11,051 reviews	Search American Airlines flights
WestJet	PriceFrom C$ 797	Free Cancellation	Rating 7.2 3,160 reviews	Search WestJet flights
United Airlines	PriceFrom C$ 830	Free Cancellation	Rating 7.4 9,017 reviews	Search United Airlines flights

Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Key West?

Finding the right flight to Key West from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Key West quick and easy, saving you time and money.

Can I find flights from Ontario to Key West with flexible booking policies on momondo?

All flight searches from Ontario to Key West on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Key West?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Key West from Ontario.

I’m not ready to book a flight from Ontario to Key West right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Key West now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Key West and let you know when they change.