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Cheap flights from London, ON to Florida Keys from C$ 280

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — EYW
4 Aug — 11 Aug1
1 adult

Cheap 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 30 July 2025.

Round-trip from

C$ 481

One-way from

C$ 280

Popular in

December

Cheapest in

June

Average price

C$ 648
Air Canada
  • Air Canada
  • 5/11-10/11
  • 2 total stops
  • 17h 47m total
  • London to Florida Keys
Search Deals
Air Canada
  • Air Canada
  • 12/9
  • 1 total stop
  • 5h 44m total
  • London to Florida Keys
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from London to Florida Keys

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 30 July 2025.

Wed 5/119:25 a.m.YXU - MIA
1 stop6h 06mAir Canada
Mon 10/119:05 p.m.MIA - YXU
1 stop11h 41mAir Canada
Deal found 29/7C$ 481
Tue 5/85:55 p.m.YXU - MIA
2 stops17h 23mMultiple Airlines
Tue 12/811:50 a.m.MIA - YXU
1 stop5h 17mMultiple Airlines
Deal found 29/7C$ 655
Tue 5/83:40 p.m.YXU - MIA
2 stops19h 38mUnited Airlines
Tue 12/87:00 a.m.MIA - YXU
2 stops10h 07mUnited Airlines
Deal found 30/7C$ 659
Sat 18/106:00 a.m.YXU - MIA
2 stops14h 47mWestJet
Thu 30/106:14 p.m.MIA - YXU
2 stops24h 58mWestJet
Deal found 30/7C$ 1,886

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 30 July 2025.
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

Thu 4/9

3:50 p.m.-9:34 p.m.

1 stop5h 44m

Miami

Thu 11/9

2:20 p.m.-9:19 a.m.

2 stops18h 59m

C$ 488

LondonMiami

YXU - MIA

YXUMIA

London

Tue 5/8

5:55 p.m.-11:18 a.m.

2 stops17h 23m

Miami

Tue 12/8

11:50 a.m.-5:07 p.m.

1 stop5h 17m

C$ 655

LondonMiami

YXU - MIA

YXUMIA

London

Tue 5/8

3:40 p.m.-11:18 a.m.

2 stops19h 38m

Miami

Tue 12/8

7:00 a.m.-5:07 p.m.

2 stops10h 07m

C$ 659

LondonMiami

YXU - MIA

YXUMIA

London

Sat 18/10

6:00 a.m.-8:47 p.m.

2 stops14h 47m

Miami

Thu 30/10

6:14 p.m.-7:12 p.m.

2 stops24h 58m

C$ 1,886

LondonMiami

YXU - MIA

YXUMIA

London

Fri 12/9

3:50 p.m.-9:34 p.m.

1 stop5h 44m

C$ 280

LondonMiami

YXU - MIA

YXUMIA

London

Sat 13/9

6:10 a.m.-3:10 p.m.

2 stops9h 00m

C$ 361

LondonMiami

YXU - MIA

YXUMIA

London

Fri 12/9

6:00 a.m.-5:42 p.m.

3 stops35h 42m

C$ 370

LondonKey West

YXU - EYW

YXUEYW

London

Sat 13/9

6:00 a.m.-10:55 a.m.

2 stops28h 55m

C$ 930

LondonMiami

YXU - MIA

YXUMIA

London

Thu 28/8

8:00 p.m.-4:37 p.m.

3 stops20h 37m

C$ 1,029

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

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 30 July 2025.
Read reviews from past customers who have flown United Airlines,WestJet, andAir 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.
United Airlines
7.4
Good
8,896 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
WestJet
7.2
Good
2,975 reviews
United Airlines
7.4
Good
8,896 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.1
Good
9,837 reviews
United Airlines
7.4
Good
8,896 reviews
Check prices

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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.

  • What are the cheapest airlines to fly from London, Ontario to Florida Keys one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 280. United Airlines flights start at C$ 361 while deals on WestJet start at C$ 930 one-way.

  • 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?

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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