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

United Airlines, Delta, and WestJet 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 refresh daily.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Key West Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Key West Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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Find the cheapest flights from Ontario to Key West

Round-trip

One-way

Last minute

Cheap round-trip flights

2:20 pm - 10:07 amYYZ-EYW

19h 47m1 stop

8:55 am - 8:00 pmEYW-YYZ

11h 05m1 stop

$271Multiple Airlines

Find Deal

Fri, Oct 31 - Fri, Nov 7

5:15 pm - 8:15 amYYZ-EYW

15h 00m1 stop

8:55 am - 12:11 amEYW-YYZ

15h 16m1 stop

$283Multiple Airlines

Find Deal

Thu, Oct 30 - Thu, Nov 6

2:10 pm - 12:44 pmYYZ-EYW

22h 34m1 stop

7:00 am - 8:33 pmEYW-YYZ

13h 33m2 stops

$534Delta

Find Deal

Sat, Jan 17 - Fri, Jan 30

5:15 pm - 12:44 pmYYZ-EYW

19h 29m2 stops

6:00 pm - 4:08 pmEYW-YYZ

22h 08m2 stops

$543Delta

Find Deal

Sat, Jan 17 - Sat, Jan 31

8:55 pm - 1:52 pmYYZ-EYW

16h 57m2 stops

4:00 pm - 8:17 amEYW-YYZ

16h 17m2 stops

$555United Airlines

Find Deal

Thu, Oct 30 - Thu, Nov 6

6:10 pm - 2:04 pmYYZ-EYW

19h 54m2 stops

3:00 pm - 8:17 amEYW-YYZ

17h 17m2 stops

$581United Airlines

Find Deal

Tue, Nov 18 - Tue, Nov 25

7:29 am - 1:11 pmYUL-EYW

5h 42m1 stop

5:09 pm - 10:59 pmEYW-YUL

5h 50m1 stop

$612American Airlines

Find Deal

Fri, Oct 31 - Fri, Nov 7

7:29 am - 5:16 pmYUL-EYW

9h 47m2 stops

7:10 am - 3:18 pmEYW-YUL

8h 08m2 stops

$627American Airlines

Find Deal

Fri, Oct 31 - Fri, Nov 7

6:00 pm - 1:12 pmYYZ-EYW

19h 12m1 stop

6:00 pm - 11:12 amEYW-YYZ

17h 12m1 stop

$648WestJet

Find Deal

Sat, Mar 14 - Sat, Mar 21

2:45 pm - 5:21 pmYUL-EYW

26h 36m1 stop

7:40 am - 11:31 amEYW-YUL

27h 51m1 stop

$671WestJet

Find Deal

Sat, Oct 18 - Tue, Oct 21

Delta flights from Region of Ontario to Key West

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

Delta

Jan 17

YYZ2:10 pmToronto Pearson Intl

22h 34m

1 stop

EYW12:44 pmKey West

Jan 30

EYW7:00 amKey West

13h 33m

2 stops

YYZ8:33 pmToronto Pearson Intl

$534

Find similar

Delta

Jan 17

YYZ5:15 pmToronto Pearson Intl

19h 29m

2 stops

EYW12:44 pmKey West

Jan 31

EYW6:00 pmKey West

22h 08m

2 stops

YYZ4:08 pmToronto Pearson Intl

$543

Find similar

Delta

Jan 23

YYZ6:45 pmToronto Pearson Intl

17h 59m

1 stop

EYW12:44 pmKey West

Jan 28

EYW1:30 pmKey West

9h 53m

1 stop

YYZ11:23 pmToronto Pearson Intl

$551

Find similar

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

Oct 30

YYZ8:55 pmToronto Pearson Intl

16h 57m

2 stops

EYW1:52 pmKey West

Nov 6

EYW4:00 pmKey West

16h 17m

2 stops

YYZ8:17 amToronto Pearson Intl

$555

Find similar

United Airlines

Nov 18

YYZ6:10 pmToronto Pearson Intl

19h 54m

2 stops

EYW2:04 pmKey West

Nov 25

EYW3:00 pmKey West

17h 17m

2 stops

YYZ8:17 amToronto Pearson Intl

$581

Find similar

United Airlines

Nov 18

YYZ9:00 amToronto Pearson Intl

29h 04m

3 stops

EYW2:04 pmKey West

Nov 25

EYW3:00 pmKey West

17h 17m

2 stops

YYZ8:17 amToronto Pearson Intl

$583

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 10/31

2:20 pm-10:07 am

1 stop19h 47m

Key West

Fri 11/7

8:55 am-8:00 pm

1 stop11h 05m

$271

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Thu 10/30

5:15 pm-8:15 am

1 stop15h 00m

Key West

Thu 11/6

8:55 am-12:11 am

1 stop15h 16m

$283

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 1/17

2:10 pm-12:44 pm

1 stop22h 34m

Key West

Fri 1/30

7:00 am-8:33 pm

2 stops13h 33m

$534

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 1/17

5:15 pm-12:44 pm

2 stops19h 29m

Key West

Sat 1/31

6:00 pm-4:08 pm

2 stops22h 08m

$543

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Thu 10/30

8:55 pm-1:52 pm

2 stops16h 57m

Key West

Thu 11/6

4:00 pm-8:17 am

2 stops16h 17m

$555

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 11/18

6:10 pm-2:04 pm

2 stops19h 54m

Key West

Tue 11/25

3:00 pm-8:17 am

2 stops17h 17m

$581

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 10/31

7:29 am-1:11 pm

1 stop5h 42m

Key West

Fri 11/7

5:09 pm-10:59 pm

1 stop5h 50m

$612

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Fri 10/31

7:29 am-5:16 pm

2 stops9h 47m

Key West

Fri 11/7

7:10 am-3:18 pm

2 stops8h 08m

$627

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 3/14

6:00 pm-1:12 pm

1 stop19h 12m

Key West

Sat 3/21

6:00 pm-11:12 am

1 stop17h 12m

$648

MontrealKey West

YUL - EYW

YULEYW

Montreal Pierre Elliott Trudeau Intl

Sat 10/18

2:45 pm-5:21 pm

1 stop26h 36m

Key West

Tue 10/21

7:40 am-11:31 am

1 stop27h 51m

$671

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, October 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 $475. If you are unable to visit Key West during the month of October, then departing from Region of Ontario during the month May is also very affordable. Most momondo users find prices during this month for around $489.

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

On average, the least expensive day to fly to Key West from Region of Ontario is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $538. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Key West for around $667.

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.

Search flight deals

When did momondo last update prices for flights from Ontario to Key West Airport?
Prices for flights from Ontario to Key West Airport refresh daily.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Key West Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Key West Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Big Pine Key

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 recognisable 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?

Yes. All flights to Key West from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Key West from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Ontario to Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.