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Cheap flights from London, ON to Florida Keys from C$ 303

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — EYW
21 Mar — 28 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Florida Keys

Enter your travel dates to find the best prices.

Cheapest flights from London to Florida Keys
Explore the most affordable flight options available from London to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 February 2026.

Wed 27/56:00 a.m.
YXU
-
MIA
1 stop6h 13m
Air Canada
Mon 31/88:15 a.m.
MIA
-
YXU
2 stops9h 20m
Air Canada
Deal found 15/2C$ 627
Tue 10/39:40 a.m.
YXU
-
MIA
1 stop5h 35m
Air Canada
Thu 12/37:25 a.m.
MIA
-
YXU
1 stop13h 56m
Air Canada
Deal found 15/2C$ 637
Tue 14/45:10 a.m.
YXU
-
MIA
1 stop6h 08m
Air Canada
Fri 24/48:00 a.m.
MIA
-
YXU
2 stops9h 03m
Air Canada
Deal found 17/2C$ 645
Wed 25/25:40 p.m.
YXU
-
MIA
1 stop6h 36m
Air Canada
Wed 4/38:00 a.m.
MIA
-
YXU
2 stops9h 05m
Air Canada
Deal found 17/2C$ 665
Thu 16/49:25 a.m.
YXU
-
MIA
2 stops12h 52m
Air Canada
Fri 24/48:00 a.m.
MIA
-
YXU
2 stops9h 03m
Air Canada
Deal found 17/2C$ 671
Sun 5/45:10 a.m.
YXU
-
MIA
1 stop5h 23m
Air Canada
Sun 12/49:05 p.m.
MIA
-
YXU
1 stop11h 38m
Air Canada
Deal found 18/2C$ 672
Tue 10/35:40 p.m.
YXU
-
MIA
1 stop6h 36m
Air Canada
Tue 17/38:00 a.m.
MIA
-
YXU
2 stops9h 05m
Air Canada
Deal found 16/2C$ 675
Tue 14/49:25 a.m.
YXU
-
MIA
1 stop5h 52m
Air Canada
Sun 26/411:35 a.m.
MIA
-
YXU
1 stop5h 28m
Air Canada
Deal found 17/2C$ 676
Mon 9/35:10 a.m.
YXU
-
EYW
2 stops11h 26m
United Airlines
Wed 11/34:55 p.m.
EYW
-
YXU
3 stops24h 10m
United Airlines
Deal found 18/2C$ 1,025

Find flight deals from London to Florida Keys

Keep the following information in mind while searching for London to Florida Keys flight deals. Data was last updated 19 February 2026.

Round-trip from

C$ 627

One-way from

C$ 303

Popular in

December

Cheapest in

July

Average price

C$ 693
Air Canada
  • Air Canada
  • 27/5-31/8
  • 3 total stops
  • 15h 33m total
  • London to Florida Keys
Search Deals
27/4
  • 27/4
  • 2 total stops
  • 17h 24m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Florida Keys that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 19 February 2026.
Use the filters below to find and compare flights from London to Florida Keys that are best for you.

Fly from

London

Fly to

Florida Keys

Route

Depart

Return

Price

LondonMiami

YXU - MIA

YXUMIA

London

Wed 27/5

6:00 a.m.-12:13 p.m.

1 stop6h 13m

Miami

Mon 31/8

8:15 a.m.-5:35 p.m.

2 stops9h 20m

C$ 627

LondonMiami

YXU - MIA

YXUMIA

London

Tue 10/3

9:40 a.m.-3:15 p.m.

1 stop5h 35m

Miami

Thu 12/3

7:25 a.m.-9:21 p.m.

1 stop13h 56m

C$ 637

LondonMiami

YXU - MIA

YXUMIA

London

Tue 14/4

5:10 a.m.-11:18 a.m.

1 stop6h 08m

Miami

Fri 24/4

8:00 a.m.-5:03 p.m.

2 stops9h 03m

C$ 645

LondonMiami

YXU - MIA

YXUMIA

London

Wed 15/4

9:25 a.m.-3:17 p.m.

1 stop5h 52m

Miami

Fri 24/4

8:00 a.m.-5:03 p.m.

2 stops9h 03m

C$ 645

LondonMiami

YXU - MIA

YXUMIA

London

Thu 16/4

9:25 a.m.-10:17 p.m.

2 stops12h 52m

Miami

Fri 24/4

8:00 a.m.-5:03 p.m.

2 stops9h 03m

C$ 671

LondonMiami

YXU - MIA

YXUMIA

London

Sun 5/4

5:10 a.m.-10:33 a.m.

1 stop5h 23m

Miami

Sun 12/4

9:05 p.m.-8:43 a.m.

1 stop11h 38m

C$ 672

LondonMiami

YXU - MIA

YXUMIA

London

Tue 10/3

5:40 p.m.-12:16 a.m.

1 stop6h 36m

Miami

Tue 17/3

8:00 a.m.-5:05 p.m.

2 stops9h 05m

C$ 675

LondonMiami

YXU - MIA

YXUMIA

London

Tue 14/4

9:25 a.m.-3:17 p.m.

1 stop5h 52m

Miami

Sun 26/4

11:35 a.m.-5:03 p.m.

1 stop5h 28m

C$ 676

LondonKey West

YXU - EYW

YXUEYW

London

Mon 9/3

5:10 a.m.-4:36 p.m.

2 stops11h 26m

Key West

Wed 11/3

4:55 p.m.-5:05 p.m.

3 stops24h 10m

C$ 1,025

LondonMiami

YXU - MIA

YXUMIA

London

Mon 27/4

6:10 a.m.-11:34 p.m.

2 stops17h 24m

C$ 303

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/2

Showing 1-10 of 20 results
1
2

Best time to book a flight from London to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Florida Keys
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Florida Keys

Get insights into the airlines that provide service to Florida Keys. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Florida Keys. Reviews last updated 19 February 2026.
Read reviews from past customers who have flown Air Canada from London to Florida Keys. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,733 reviews
Check prices

Boarding

7.3

Crew

7.8

Food

6.3

Entertainment

6.8

Comfort

7.1

Overall

7.1

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,733 reviews
Air Canada
7.1
Good
10,733 reviews
Check prices

Boarding

7.3

Crew

7.8

Food

6.3

Entertainment

6.8

Comfort

7.1

Overall

7.1

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

Related info for your journey

Find useful and relevant information for your journey from London to Florida Keys. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from London to Florida Keys?

    London (YXU), located 8.6 km from the city centre, is the airport you fly out of when you book flights from London to Florida Keys.

  • How long is the flight from London, Ontario to Florida Keys?

    Air Canada and United Airlines can get you from London, Ontario to Florida Keys in just under 6h 13m. Your travel time can differ by up to 5h 13m. The distance between London, Ontario and Florida Keys is about 1917 km. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from London to Florida Keys that include hotel bookings?

    Yes. In addition to deals on London to Florida Keys flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Florida Keys?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Florida Keys.

  • Can I find deals for business class flights from London to Florida Keys?

    Yes. Cheapflights offers flight deals from London to Florida Keys by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Florida Keys?

Cheapflights makes it easy to find London to Florida Keys flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Florida Keys?

Cheapflights simply makes it quick and affordable to book flights from London to Florida Keys by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to Florida Keys with no change fees?

Yes! Cheapflights helps users easily find flights from London to Florida Keys with no change fees.

Can Cheapflights notify me if prices for flights from London to Florida Keys become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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