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Cheap flights from London, ON to Florida Keys from C$ 407

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — EYW
9 Aug — 16 Aug1
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 10 July 2026.

Mon 17/83:30 p.m.
YXU
-
MIA
1 stop5h 18m
Air Canada
Thu 20/87:55 a.m.
MIA
-
YXU
2 stops9h 47m
Air Canada
Deal found 9/7C$ 735
Tue 20/103:30 p.m.
YXU
-
MIA
1 stop5h 19m
Air Canada
Wed 21/108:15 a.m.
MIA
-
YXU
2 stops9h 30m
Air Canada
Deal found 7/7C$ 765
Thu 6/83:30 p.m.
YXU
-
MIA
1 stop5h 18m
Air Canada
Mon 10/89:45 p.m.
MIA
-
YXU
1 stop11h 35m
Air Canada
Deal found 9/7C$ 833
Mon 3/89:10 p.m.
YXU
-
MIA
1 stop14h 58m
Air Canada
Mon 10/88:15 a.m.
MIA
-
YXU
2 stops13h 25m
Air Canada
Deal found 7/7C$ 852
Mon 14/123:20 p.m.
YXU
-
EYW
2 stops20h 31m
United Airlines
Thu 17/121:25 p.m.
EYW
-
YXU
2 stops8h 22m
United Airlines
Deal found 7/7C$ 1,034
Sat 31/105:30 a.m.
YXU
-
EYW
2 stops9h 46m
United Airlines
Wed 4/112:55 p.m.
EYW
-
YXU
2 stops30h 57m
United Airlines
Deal found 6/7C$ 1,186

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 10 July 2026.

Round-trip from

C$ 735

One-way from

C$ 407

Popular in

September

Cheapest in

July

Average price

C$ 716
Air Canada
  • Air Canada
  • 17/8-20/8
  • 3 total stops
  • 15h 05m total
  • London to Florida Keys
Search Deals
21/8
  • 21/8
  • 3 total stops
  • 38h 19m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 132 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 10 July 2026.
Use the filters below to find and compare flights from London to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonMiami

YXU - MIA

YXUMIA

London

Tue 20/10

3:30 p.m.-8:49 p.m.

1 stop5h 19m

Miami

Wed 21/10

8:15 a.m.-5:45 p.m.

2 stops9h 30m

C$ 765

LondonMiami

YXU - MIA

YXUMIA

London

Mon 17/8

3:30 p.m.-8:48 p.m.

1 stop5h 18m

Miami

Thu 20/8

9:45 p.m.-9:20 a.m.

1 stop11h 35m

C$ 768

LondonMiami

YXU - MIA

YXUMIA

London

Tue 20/10

5:40 a.m.-6:52 p.m.

3 stops13h 12m

Miami

Wed 21/10

12:29 p.m.-9:40 p.m.

2 stops9h 11m

C$ 873

LondonMiami

YXU - MIA

YXUMIA

London

Thu 17/9

5:40 a.m.-2:51 p.m.

2 stops9h 11m

Miami

Mon 21/9

1:44 p.m.-9:40 p.m.

2 stops7h 56m

C$ 873

LondonKey West

YXU - EYW

YXUEYW

London

Mon 14/12

3:20 p.m.-11:51 a.m.

2 stops20h 31m

Key West

Thu 17/12

1:25 p.m.-9:47 p.m.

2 stops8h 22m

C$ 1,034

LondonKey West

YXU - EYW

YXUEYW

London

Sat 31/10

5:30 a.m.-3:16 p.m.

2 stops9h 46m

Key West

Wed 4/11

2:55 p.m.-9:52 p.m.

2 stops30h 57m

C$ 1,186
Cheapest one-way

LondonMiami

YXU - MIA

YXUMIA

London

Fri 21/8

6:10 a.m.-8:29 p.m.

3 stops38h 19m

C$ 407
Quickest one-way

LondonMiami

YXU - MIA

YXUMIA

London

Tue 28/7

3:30 p.m.-8:48 p.m.

1 stop5h 18m

C$ 411

LondonMiami

YXU - MIA

YXUMIA

London

Fri 21/8

5:40 a.m.-5:01 p.m.

2 stops11h 21m

C$ 452

LondonMiami

YXU - MIA

YXUMIA

London

Tue 4/8

3:30 p.m.-8:48 p.m.

1 stop5h 18m

C$ 460

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Showing 1-10 of 13 resultsSorted by cheapest first
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 10 July 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
11,323 reviews
Check prices

Boarding

7.3

Crew

7.8

Entertainment

6.8

Comfort

7.1

Food

6.3

Overall

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
11,323 reviews
Air Canada
7.1
Good
11,323 reviews
Check prices

Boarding

7.3

Crew

7.8

Entertainment

6.8

Comfort

7.1

Food

6.3

Overall

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

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 5h 19m. Your travel time can differ by up to 15h 12m. 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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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?

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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.

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