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

Delta, 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 66% 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 August 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$ 248 Cheap Flights from Ontario to Key West in 2025

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

11:00 a.m. - 2:35 p.m.YYZ-EYW

27h 35m1 stop

8:55 a.m. - 4:36 p.m.EYW-YYZ

7h 41m1 stop

C$ 416

Find Deal

Fri, 29 Aug - Thu, 4 Sep

8:15 p.m. - 11:52 a.m.YYZ-EYW

15h 37m1 stop

8:47 a.m. - 8:00 p.m.EYW-YYZ

11h 13m1 stop

C$ 558

Find Deal

Thu, 20 Nov - Mon, 24 Nov

11:00 a.m. - 9:02 a.m.YYZ-EYW

22h 02m1 stop

8:55 a.m. - 5:56 p.m.EYW-YYZ

9h 01m1 stop

C$ 647

Find Deal

Fri, 24 Oct - Sun, 26 Oct

12:45 p.m. - 2:55 p.m.YYZ-EYW

26h 10m2 stops

3:50 p.m. - 2:19 p.m.EYW-YYZ

22h 29m2 stops

C$ 769United Airlines

Find Deal

Tue, 2 Sep - Tue, 9 Sep

2:57 p.m. - 4:19 p.m.YYZ-EYW

25h 22m2 stops

3:05 p.m. - 9:58 a.m.EYW-YYZ

18h 53m2 stops

C$ 771United Airlines

Find Deal

Sat, 1 Nov - Sat, 22 Nov

5:18 p.m. - 11:40 a.m.YYZ-EYW

18h 22m1 stop

1:59 p.m. - 10:29 p.m.EYW-YYZ

8h 30m2 stops

C$ 774American Airlines

Find Deal

Fri, 29 Aug - Thu, 4 Sep

8:55 p.m. - 2:14 p.m.YYZ-EYW

17h 19m2 stops

3:50 p.m. - 10:12 p.m.EYW-YYZ

30h 22m2 stops

C$ 792Lufthansa

Find Deal

Fri, 29 Aug - Thu, 4 Sep

6:00 a.m. - 5:21 p.m.YYZ-EYW

11h 21m2 stops

6:00 p.m. - 11:59 p.m.EYW-YYZ

5h 59m1 stop

C$ 796Delta

Find Deal

Fri, 7 Nov - Tue, 11 Nov

6:00 a.m. - 5:16 p.m.YYZ-EYW

11h 16m1 stop

4:58 p.m. - 10:50 p.m.EYW-YYZ

5h 52m1 stop

C$ 832American Airlines

Find Deal

Sat, 11 Oct - Wed, 15 Oct

10:10 a.m. - 7:44 p.m.YYZ-EYW

9h 34m2 stops

11:45 a.m. - 10:58 p.m.EYW-YYZ

11h 13m2 stops

C$ 962Delta

Find Deal

Wed, 19 Nov - Mon, 24 Nov

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

29 Aug

YYZ5:18 p.m.Toronto Pearson Intl

18h 22m

1 stop

EYW11:40 a.m.Key West

4 Sep

EYW1:59 p.m.Key West

8h 30m

2 stops

YYZ10:29 p.m.Toronto Pearson Intl

C$ 774

Find similar

American Airlines

11 Oct

YYZ6:00 a.m.Toronto Pearson Intl

11h 16m

1 stop

EYW5:16 p.m.Key West

15 Oct

EYW4:58 p.m.Key West

5h 52m

1 stop

YYZ10:50 p.m.Toronto Pearson Intl

C$ 832

Find similar

American Airlines

4 Dec

YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl

11h 25m

1 stop

EYW6:30 p.m.Key West

8 Dec

EYW5:24 p.m.Key West

5h 16m

1 stop

YUL10:40 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 836

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

2 Sep

YYZ12:45 p.m.Toronto Pearson Intl

26h 10m

2 stops

EYW2:55 p.m.Key West

9 Sep

EYW3:50 p.m.Key West

22h 29m

2 stops

YYZ2:19 p.m.Toronto Pearson Intl

C$ 769

Find similar

United Airlines

1 Nov

YYZ2:57 p.m.Toronto Pearson Intl

25h 22m

2 stops

EYW4:19 p.m.Key West

22 Nov

EYW3:05 p.m.Key West

18h 53m

2 stops

YYZ9:58 a.m.Toronto Pearson Intl

C$ 771

Find similar

United Airlines

1 Nov

YYZ2:57 p.m.Toronto Pearson Intl

25h 22m

2 stops

EYW4:19 p.m.Key West

22 Nov

EYW4:00 p.m.Key West

6h 59m

1 stop

YYZ10:59 p.m.Toronto Pearson Intl

C$ 818

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 29/8

11:00 a.m.-2:35 p.m.

1 stop27h 35m

Key West

Thu 4/9

8:55 a.m.-4:36 p.m.

1 stop7h 41m

C$ 416

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Thu 20/11

8:15 p.m.-11:52 a.m.

1 stop15h 37m

Key West

Mon 24/11

8:47 a.m.-8:00 p.m.

1 stop11h 13m

C$ 558

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 24/10

11:00 a.m.-9:02 a.m.

1 stop22h 02m

Key West

Sun 26/10

8:55 a.m.-5:56 p.m.

1 stop9h 01m

C$ 647

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Tue 2/9

12:45 p.m.-2:55 p.m.

2 stops26h 10m

Key West

Tue 9/9

3:50 p.m.-2:19 p.m.

2 stops22h 29m

C$ 769

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 1/11

2:57 p.m.-4:19 p.m.

2 stops25h 22m

Key West

Sat 22/11

3:05 p.m.-9:58 a.m.

2 stops18h 53m

C$ 771

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 29/8

5:18 p.m.-11:40 a.m.

1 stop18h 22m

Key West

Thu 4/9

1:59 p.m.-10:29 p.m.

2 stops8h 30m

C$ 774

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 29/8

8:55 p.m.-2:14 p.m.

2 stops17h 19m

Key West

Thu 4/9

3:50 p.m.-10:12 p.m.

2 stops30h 22m

C$ 792

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Fri 7/11

6:00 a.m.-5:21 p.m.

2 stops11h 21m

Key West

Tue 11/11

6:00 p.m.-11:59 p.m.

1 stop5h 59m

C$ 796

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Sat 11/10

6:00 a.m.-5:16 p.m.

1 stop11h 16m

Key West

Wed 15/10

4:58 p.m.-10:50 p.m.

1 stop5h 52m

C$ 832

TorontoKey West

YYZ - EYW

YYZEYW

Toronto Pearson Intl

Wed 19/11

10:10 a.m.-7:44 p.m.

2 stops9h 34m

Key West

Mon 24/11

11:45 a.m.-10:58 p.m.

2 stops11h 13m

C$ 962

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 C$ 654. If you don’t want to visit Key West in October, then you should wait until May to fly from Region of Ontario, when ticket prices are also cheap, with an average price of C$ 674.

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$ 836. 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$ 956.

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$ 891. Try not to purchase tickets in the morning because they tend to be around C$ 919. 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

Best price found	C$ 248
Fastest flight time	5h 36m
Direct flights	None
Airports in Key West	1 airport

The best one-way flight to Key West from Region of Ontario in the past 72 hours is C$ 248. The best round-trip flight deal from Region of Ontario to Key West found on momondo in the last 72 hours is C$ 416.

The fastest flight from Region of Ontario to Key West takes 5h 36m

There are no direct flights from Region of Ontario to Key West. Popular non-direct routes for this connection are Toronto Pearson Intl Airport - Key West Airport, Toronto Island Airport - Key West Airport and Montreal Pierre Elliott Trudeau Intl Airport - Key West Airport.

There is 1 airport near Key West: Key West (EYW)

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 are updated daily.
How many operators does momondo search for flights from Ontario to Key West Airport?
As of August 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$ 675	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom C$ 698	Free Cancellation	Rating 7.4 8,912 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 784	Free Cancellation	Rating 7.2 2,994 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.

An easier way to manage your Key West trip

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Cheap flights from Ontario to Key West from C$ 248

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Key West departing on 18/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

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Filter for what you want

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Find the cheapest flights from Ontario to Key West

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

American Airlines flights from Region of Ontario to Key West

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

United Airlines flights from Region of Ontario to Key West

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

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Use the filters below to find and compare flights from Ontario to Key West that are best for you.

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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

What is the cheapest month to fly to Key West?

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

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

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

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

Which airlines fly to Key West?

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

Fastest flight time

Direct flights

Airports in Key West

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

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

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

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

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

Travelling to a place near Key West?

Why use momondo?

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

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

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

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

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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