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

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

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 September 2026, there is 1 operator 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$ 307 Cheap Flights from Ontario to Key West in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

9:15 a.m. - 12:36 p.m.YYZ Toronto Pearson Intl-EYW Key West

27h 21m1 stop Tampa

12:01 p.m. - 7:20 p.m.EYW Key West-YYZ Toronto Pearson Intl

7h 19m1 stop Tampa

C$ 404Multiple Airlines

Mon, 2 Nov - Thu, 5 Nov

2:25 p.m. - 9:24 a.m.YYZ Toronto Pearson Intl-EYW Key West

18h 59m1 stop Tampa

12:59 p.m. - 9:25 p.m.EYW Key West-YYZ Toronto Pearson Intl

8h 26m1 stop Tampa

C$ 482Multiple Airlines

Mon, 23 Nov - Mon, 30 Nov

2:25 p.m. - 9:24 a.m.YYZ Toronto Pearson Intl-EYW Key West

18h 59m1 stop Tampa

12:59 p.m. - 8:17 p.m.EYW Key West-YYZ Toronto Pearson Intl

31h 18m2 stops Tampa New York LaGuardia

C$ 516Multiple Airlines

Mon, 23 Nov - Mon, 30 Nov

7:15 a.m. - 10:19 a.m.YYZ Toronto Pearson Intl-EYW Key West

27h 04m1 stop Orlando

12:01 p.m. - 7:20 p.m.EYW Key West-YYZ Toronto Pearson Intl

7h 19m1 stop Tampa

C$ 517Multiple Airlines

Thu, 5 Nov - Thu, 12 Nov

6:30 a.m. - 10:19 a.m.YYZ Toronto Pearson Intl-EYW Key West

27h 49m1 stop Orlando

10:45 a.m. - 8:40 p.m.EYW Key West-YYZ Toronto Pearson Intl

9h 55m1 stop Tampa

C$ 530Multiple Airlines

Sat, 28 Nov - Wed, 2 Dec

7:35 a.m. - 12:36 p.m.YYZ Toronto Pearson Intl-EYW Key West

29h 01m2 stops Fort Lauderdale Tampa

12:01 p.m. - 7:20 p.m.EYW Key West-YYZ Toronto Pearson Intl

7h 19m1 stop Tampa

C$ 676Multiple Airlines

Mon, 2 Nov - Thu, 5 Nov

6:30 a.m. - 10:19 a.m.YYZ Toronto Pearson Intl-EYW Key West

27h 49m1 stop Orlando

10:04 a.m. - 11:20 p.m.EYW Key West-YYZ Toronto Pearson Intl

13h 16m2 stops Tampa Fort Lauderdale

C$ 679Multiple Airlines

Sat, 7 Nov - Sat, 14 Nov

7:15 a.m. - 10:19 a.m.YYZ Toronto Pearson Intl-EYW Key West

27h 04m1 stop Orlando

3:03 p.m. - 10:55 p.m.EYW Key West-YYZ Toronto Pearson Intl

31h 52m2 stops Asheville Regional Fort Lauderdale

C$ 692Multiple Airlines

Thu, 5 Nov - Thu, 12 Nov

7:00 a.m. - 1:55 p.m.YYZ Toronto Pearson Intl-EYW Key West

6h 55m1 stop New York LaGuardia

5:35 p.m. - 11:47 p.m.EYW Key West-YYZ Toronto Pearson Intl

6h 12m1 stop Philadelphia

C$ 796American Airlines

Fri, 13 Nov - Wed, 18 Nov

7:00 a.m. - 1:55 p.m.YYZ Toronto Pearson Intl-EYW Key West

6h 55m1 stop New York LaGuardia

5:35 p.m. - 11:47 p.m.EYW Key West-YYZ Toronto Pearson Intl

6h 12m1 stop Philadelphia

C$ 797American Airlines

Fri, 13 Nov - Wed, 18 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:38 a.m. - 8:00 p.m.YYZ Toronto Pearson Intl-EYW Key West

8h 22m1 stop Atlanta Hartsfield-Jackson

10:59 a.m. - 9:55 p.m.EYW Key West-YYZ Toronto Pearson Intl

34h 56m2 stops Orlando Nashville Intl

C$ 934Multiple Airlines

Sun, 27 Sep - Sun, 4 Oct

11:38 a.m. - 8:00 p.m.YYZ Toronto Pearson Intl-EYW Key West

8h 22m1 stop Atlanta Hartsfield-Jackson

11:42 a.m. - 5:18 p.m.EYW Key West-YYZ Toronto Pearson Intl

5h 36m1 stop Atlanta Hartsfield-Jackson

C$ 947Delta

Mon, 28 Sep - Mon, 5 Oct

8:10 a.m. - 9:24 a.m.YYZ Toronto Pearson Intl-EYW Key West

25h 14m1 stop Tampa

12:01 p.m. - 2:55 p.m.EYW Key West-YYZ Toronto Pearson Intl

26h 54m1 stop Tampa

C$ 964Multiple Airlines

Fri, 25 Sep - Sun, 27 Sep

7:45 a.m. - 12:53 p.m.YYZ Toronto Pearson Intl-EYW Key West

5h 08m1 stop Atlanta Hartsfield-Jackson

12:59 p.m. - 11:30 a.m.EYW Key West-YYZ Toronto Pearson Intl

22h 31m2 stops Tampa New York LaGuardia

C$ 1,014Multiple Airlines

Mon, 28 Sep - Mon, 5 Oct

7:27 a.m. - 5:55 p.m.YYZ Toronto Pearson Intl-EYW Key West

10h 28m2 stops New York LaGuardia Charlotte Douglas

1:43 p.m. - 10:40 p.m.EYW Key West-YYZ Toronto Pearson Intl

8h 57m2 stops Miami Charlotte Douglas

C$ 1,044American Airlines

Mon, 28 Sep - Mon, 5 Oct

6:15 a.m. - 12:53 p.m.YYZ Toronto Pearson Intl-EYW Key West

6h 38m1 stop Atlanta Hartsfield-Jackson

11:42 a.m. - 5:18 p.m.EYW Key West-YYZ Toronto Pearson Intl

5h 36m1 stop Atlanta Hartsfield-Jackson

C$ 1,086Delta

Sun, 27 Sep - Sun, 4 Oct

8:00 a.m. - 4:12 p.m.YYZ Toronto Pearson Intl-EYW Key West

8h 12m2 stops Philadelphia Charlotte Douglas

1:47 p.m. - 11:46 p.m.EYW Key West-YYZ Toronto Pearson Intl

9h 59m2 stops Miami Philadelphia

C$ 1,175American Airlines

Sun, 27 Sep - Sun, 4 Oct

6:00 a.m. - 1:17 p.m.YYZ Toronto Pearson Intl-EYW Key West

7h 17m1 stop Miami

1:47 p.m. - 11:46 p.m.EYW Key West-YYZ Toronto Pearson Intl

9h 59m2 stops Miami Philadelphia

C$ 1,237American Airlines

Fri, 25 Sep - Sun, 27 Sep

6:15 a.m. - 5:55 p.m.YYZ Toronto Pearson Intl-EYW Key West

11h 40m2 stops Philadelphia Charlotte Douglas

1:47 p.m. - 11:46 p.m.EYW Key West-YYZ Toronto Pearson Intl

9h 59m2 stops Miami Philadelphia

C$ 1,244American Airlines

Fri, 25 Sep - Sun, 27 Sep

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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

13 Nov

YYZ7:00 a.m.Toronto Pearson Intl

6h 55m

1 stop

EYW1:55 p.m.Key West

18 Nov

EYW5:35 p.m.Key West

6h 12m

1 stop

YYZ11:47 p.m.Toronto Pearson Intl

C$ 796

American Airlines

13 Nov

YYZ7:00 a.m.Toronto Pearson Intl

6h 55m

1 stop

EYW1:55 p.m.Key West

18 Nov

EYW5:35 p.m.Key West

6h 12m

1 stop

YYZ11:47 p.m.Toronto Pearson Intl

C$ 797

American Airlines

13 Nov

YYZ7:00 a.m.Toronto Pearson Intl

6h 55m

1 stop

EYW1:55 p.m.Key West

18 Nov

EYW10:18 a.m.Key West

11h 27m

2 stops

YYZ9:45 p.m.Toronto Pearson Intl

C$ 803

WestJet flights from Region of Ontario to Key West

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

WestJet

23 Oct

YYZ11:38 a.m.Toronto Pearson Intl

8h 23m

1 stop

EYW8:01 p.m.Key West

26 Oct

EYW11:51 a.m.Key West

10h 08m

1 stop

YYZ9:59 p.m.Toronto Pearson Intl

C$ 943

WestJet

27 Nov

YYZ6:15 a.m.Toronto Pearson Intl

10h 55m

1 stop

EYW5:10 p.m.Key West

2 Dec

EYW6:06 p.m.Key West

5h 52m

1 stop

YYZ11:58 p.m.Toronto Pearson Intl

C$ 976

WestJet

13 Nov

YYZ6:15 a.m.Toronto Pearson Intl

13h 45m

1 stop

EYW8:00 p.m.Key West

18 Nov

EYW6:08 p.m.Key West

14h 17m

2 stops

YYZ8:25 a.m.Toronto Pearson Intl

C$ 1,016

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Mon 2/11

9:15 a.m.-12:36 p.m.

1 stop27h 21m

Key West

Thu 5/11

12:01 p.m.-7:20 p.m.

1 stop7h 19m

C$ 404

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Mon 23/11

2:25 p.m.-9:24 a.m.

1 stop18h 59m

Key West

Mon 30/11

12:59 p.m.-9:25 p.m.

1 stop8h 26m

C$ 482

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Mon 23/11

2:25 p.m.-9:24 a.m.

1 stop18h 59m

Key West

Mon 30/11

12:59 p.m.-8:17 p.m.

2 stops31h 18m

C$ 516

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Thu 5/11

7:15 a.m.-10:19 a.m.

1 stop27h 04m

Key West

Thu 12/11

12:01 p.m.-7:20 p.m.

1 stop7h 19m

C$ 517

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Sat 28/11

6:30 a.m.-10:19 a.m.

1 stop27h 49m

Key West

Wed 2/12

10:45 a.m.-8:40 p.m.

1 stop9h 55m

C$ 530

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Mon 2/11

7:35 a.m.-12:36 p.m.

2 stops29h 01m

Key West

Thu 5/11

12:01 p.m.-7:20 p.m.

1 stop7h 19m

C$ 676

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Sat 7/11

6:30 a.m.-10:19 a.m.

1 stop27h 49m

Key West

Sat 14/11

10:04 a.m.-11:20 p.m.

2 stops13h 16m

C$ 679

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Thu 5/11

7:15 a.m.-10:19 a.m.

1 stop27h 04m

Key West

Thu 12/11

3:03 p.m.-10:55 p.m.

2 stops31h 52m

C$ 692

Quickest round-trip

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Fri 13/11

7:00 a.m.-1:55 p.m.

1 stop6h 55m

Key West

Wed 18/11

5:35 p.m.-11:47 p.m.

1 stop6h 12m

C$ 796

TorontoKey West

YYZ Toronto Pearson Intl - EYW Key West

YYZEYW

Toronto Pearson Intl

Fri 13/11

7:00 a.m.-1:55 p.m.

1 stop6h 55m

Key West

Wed 18/11

5:35 p.m.-11:47 p.m.

1 stop6h 12m

C$ 797

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 month to fly to Key West?

In general, September is the cheapest month to fly from Region of Ontario to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 0. If you don’t want to visit Key West in September, then you should wait until January to fly from Region of Ontario, when ticket prices are also cheap, with an average price of C$ 0.

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

Best price found	C$ 307
Fastest flight time	6h 02m
Direct flights	None

The best one-way flight to Key West from Region of Ontario in the past 72 hours is C$ 307. The best round-trip flight deal from Region of Ontario to Key West found on momondo in the last 72 hours is C$ 404.

The fastest flight from Region of Ontario to Key West takes 6h 02m

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.

Search flight deals

Frequently asked questions about flying from Ontario to Key West

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 September 2026, there is 1 operator 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$ 724	Free Cancellation	Rating 7.0 12,075 reviews		Search American 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.