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

United Airlines is the most popular carrier 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 June 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$ 332 Cheap Flights from Ontario to Key West in 2026

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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.

9:50 a.m. - 11:27 a.m.

YYZ

EYW

25h 37m

1 stop

7:53 p.m. - 2:05 p.m.

EYW

YYZ

42h 12m

2 stops

C$ 655Multiple Airlines

Sun, 19 Jul - Sun, 26 Jul

9:50 a.m. - 11:27 a.m.

YYZ

EYW

25h 37m

1 stop

12:05 p.m. - 4:45 p.m.

EYW

YYZ

28h 40m

1 stop

C$ 691Multiple Airlines

Sun, 19 Jul - Sun, 26 Jul

10:15 a.m. - 12:36 p.m.

YYZ

EYW

26h 21m

1 stop

9:20 a.m. - 12:10 a.m.

EYW

YYZ

14h 50m

1 stop

C$ 730Multiple Airlines

Mon, 2 Nov - Mon, 9 Nov

6:30 a.m. - 7:13 p.m.

YYZ

EYW

12h 43m

2 stops

7:53 p.m. - 2:55 p.m.

EYW

YYZ

19h 02m

1 stop

C$ 744Multiple Airlines

Thu, 30 Jul - Sun, 2 Aug

6:00 a.m. - 7:23 p.m.

YYZ

EYW

13h 23m

1 stop

11:31 a.m. - 11:22 p.m.

EYW

YYZ

11h 51m

1 stop

C$ 878American Airlines

Sat, 11 Jul - Sat, 18 Jul

6:00 a.m. - 7:23 p.m.

YYZ

EYW

13h 23m

1 stop

11:31 a.m. - 11:22 p.m.

EYW

YYZ

11h 51m

1 stop

C$ 879American Airlines

Sat, 11 Jul - Sat, 18 Jul

7:45 a.m. - 1:08 p.m.

YYZ

EYW

5h 23m

1 stop

6:00 p.m. - 9:31 a.m.

EYW

YYZ

15h 31m

2 stops

C$ 895Delta

Tue, 27 Oct - Fri, 30 Oct

12:45 p.m. - 7:43 p.m.

YUL

EYW

6h 58m

1 stop

6:00 p.m. - 11:51 p.m.

EYW

YUL

5h 51m

1 stop

C$ 900Delta

Fri, 23 Oct - Tue, 27 Oct

7:15 a.m. - 1:30 p.m.

YTZ

EYW

30h 15m

2 stops

4:00 p.m. - 10:06 a.m.

EYW

YTZ

18h 06m

1 stop

C$ 1,256United Airlines

Sun, 19 Jul - Sun, 26 Jul

7:15 a.m. - 3:19 p.m.

YTZ

EYW

32h 04m

2 stops

4:00 p.m. - 6:42 p.m.

EYW

YTZ

26h 42m

2 stops

C$ 1,271United Airlines

Sun, 19 Jul - Sun, 26 Jul

Delta flights from Region of Ontario to Key West

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

Delta

27 Oct

YYZ7:45 a.m.Toronto Pearson Intl

5h 23m

1 stop

EYW1:08 p.m.Key West

30 Oct

EYW6:00 p.m.Key West

15h 31m

2 stops

YYZ9:31 a.m.Toronto Pearson Intl

C$ 895

Delta

22 Jul

YYZ1:38 p.m.Toronto Pearson Intl

6h 13m

1 stop

EYW7:51 p.m.Key West

29 Jul

EYW6:18 p.m.Key West

5h 40m

1 stop

YYZ11:58 p.m.Toronto Pearson Intl

C$ 899

Delta

23 Oct

YUL12:45 p.m.Montreal Pierre Elliott Trudeau Intl

6h 58m

1 stop

EYW7:43 p.m.Key West

27 Oct

EYW6:00 p.m.Key West

5h 51m

1 stop

YUL11:51 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 900

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

27 Oct

YYZ8:50 a.m.Toronto Pearson Intl

6h 16m

1 stop

EYW3:06 p.m.Key West

30 Oct

EYW4:05 p.m.Key West

8h 14m

1 stop

YYZ12:19 a.m.Toronto Pearson Intl

C$ 900

United Airlines

16 Jul

YYZ7:00 a.m.Toronto Pearson Intl

8h 19m

1 stop

EYW3:19 p.m.Key West

26 Jul

EYW4:00 p.m.Key West

7h 59m

1 stop

YYZ11:59 p.m.Toronto Pearson Intl

C$ 946

United Airlines

11 Jul

YYZ4:35 p.m.Toronto Pearson Intl

22h 44m

2 stops

EYW3:19 p.m.Key West

18 Jul

EYW2:26 p.m.Key West

7h 09m

1 stop

YYZ9:35 p.m.Toronto Pearson Intl

C$ 963

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 19/7

9:50 a.m.-11:27 a.m.

1 stop25h 37m

Key West

Sun 26/7

7:53 p.m.-2:05 p.m.

2 stops42h 12m

C$ 655

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sun 19/7

9:50 a.m.-11:27 a.m.

1 stop25h 37m

Key West

Sun 26/7

12:05 p.m.-4:45 p.m.

1 stop28h 40m

C$ 691

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Mon 2/11

10:15 a.m.-12:36 p.m.

1 stop26h 21m

Key West

Mon 9/11

9:20 a.m.-12:10 a.m.

1 stop14h 50m

C$ 730

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Thu 30/7

6:30 a.m.-7:13 p.m.

2 stops12h 43m

Key West

Sun 2/8

7:53 p.m.-2:55 p.m.

1 stop19h 02m

C$ 744

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 11/7

6:00 a.m.-7:23 p.m.

1 stop13h 23m

Key West

Sat 18/7

11:31 a.m.-11:22 p.m.

1 stop11h 51m

C$ 878

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 11/7

6:00 a.m.-7:23 p.m.

1 stop13h 23m

Key West

Sat 18/7

11:31 a.m.-11:22 p.m.

1 stop11h 51m

C$ 879

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 27/10

7:45 a.m.-1:08 p.m.

1 stop5h 23m

Key West

Fri 30/10

6:00 p.m.-9:31 a.m.

2 stops15h 31m

C$ 895

Quickest round-trip

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 23/10

12:45 p.m.-7:43 p.m.

1 stop6h 58m

Key West

Tue 27/10

6:00 p.m.-11:51 p.m.

1 stop5h 51m

C$ 900

TorontoKey West

YTZ - EYW

YTZEYW

Toronto Island

Sun 19/7

7:15 a.m.-1:30 p.m.

2 stops30h 15m

Key West

Sun 26/7

4:00 p.m.-10:06 a.m.

1 stop18h 06m

C$ 1,256

TorontoKey West

YTZ - EYW

YTZEYW

Toronto Island

Sun 19/7

7:15 a.m.-3:19 p.m.

2 stops32h 04m

Key West

Sun 26/7

4:00 p.m.-6:42 p.m.

2 stops26h 42m

C$ 1,271

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$ 687.

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

Fastest flight time	5h 23m
Direct flights	None

The fastest flight from Region of Ontario to Key West takes 5h 23m

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 June 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
WestJet	PriceFrom C$ 760	Free Cancellation	Rating 7.2 3,354 reviews		Search WestJet 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.