£170 Find Cheap Flights from Florida Keys to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£425
Overall average: £495
TAP AIR PORTUGAL
Fri 20/3Sun 5/4
MIA - LHR • 1 stop
Cheapest direct flights
£433
Typical prices: £404-£627
British Airways
Mon 26/1Tue 10/2
MIA - LHR • Direct
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Flight Deals

Cheap Flights from Florida Keys to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Florida Keys to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Florida Keys to London

Fri, 20 Mar - Sun, 5 Apr
TAP AIR PORTUGAL Logo
17:35 - 18:55MIA-LHR
21h 20m1 stop
TAP AIR PORTUGAL Logo
06:00 - 22:20LHR-MIA
21h 20m1 stop
£425TAP AIR PORTUGAL
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Wed, 11 Mar - Wed, 18 Mar
Scandinavian Airlines Logo
21:40 - 18:50MIA-LHR
17h 10m2 stops
Scandinavian Airlines Logo
06:40 - 19:05LHR-MIA
16h 25m1 stop
£426Scandinavian Airlines
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Thu, 29 Jan - Sun, 8 Feb
Scandinavian Airlines Logo
20:40 - 21:20MIA-LHR
19h 40m2 stops
Scandinavian Airlines Logo
09:55 - 18:35LHR-MIA
13h 40m1 stop
£428Scandinavian Airlines
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Sun, 7 Dec - Sun, 14 Dec
TAP AIR PORTUGAL Logo
23:50 - 22:40MIA-LHR
17h 50m1 stop
TAP AIR PORTUGAL Logo
13:40 - 14:50LHR-MIA
30h 10m1 stop
£428TAP AIR PORTUGAL
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Mon, 26 Jan - Tue, 10 Feb
British Airways Logo
22:00 - 11:30MIA-LHR
8h 30mdirect
British Airways Logo
09:45 - 14:40LHR-MIA
9h 55mdirect
£433British Airways
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Thu, 4 Dec - Thu, 11 Dec
Virgin Atlantic Logo
21:25 - 11:10MIA-LHR
8h 45mdirect
Virgin Atlantic Logo
06:30 - 14:50LHR-MIA
13h 20m1 stop
£445Virgin Atlantic
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Wed, 3 Dec - Wed, 10 Dec
Virgin Atlantic Logo
17:10 - 07:00MIA-LHR
8h 50mdirect
Virgin Atlantic Logo
14:00 - 19:25LHR-MIA
10h 25mdirect
£457Virgin Atlantic
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Sun, 1 Feb - Tue, 10 Feb
British Airways Logo
13:33 - 11:30EYW-LHR
16h 57m1 stop
British Airways Logo
10:45 - 23:56LHR-EYW
18h 11m2 stops
£484British Airways
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Sun, 1 Feb - Tue, 10 Feb
American Airlines Logo
18:43 - 12:00EYW-LHR
12h 17m1 stop
American Airlines Logo
09:55 - 21:47LHR-EYW
16h 52m1 stop
£499American Airlines
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Sun, 7 Dec - Sun, 14 Dec
KLM Logo
15:02 - 09:00EYW-LHR
12h 58m1 stop
KLM Logo
10:45 - 20:06LHR-EYW
14h 21m1 stop
£570KLM
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Good to know - Cheap tickets from Florida Keys to London

Low seasonFebruary
Cheapest flight£170
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (13% more expensive on average)
Flight from Miami to London Heathrow Airport

Flights from Florida Keys to London: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Florida Keys to London 
Verified travelerFlew with British AirwaysMIA-LHRJan 2024
Arrive in plenty of time for check in and security.
NeilFlew with British AirwaysMIA-LHRJan 2024
Try to upgrade. The international facilities at the airport post security are very busy and unpleasant. Try to book into a lounge if you can although you may need to upgrade to business class. the American Airlines lounge is pay on the day but it costs $150 per person.
RobertaFlew with British AirwaysMIA-LHRJan 2024
Navigating through Miami airport requires careful sign reading as signage is pretty poor!

FAQs for booking Florida Keys to London flights

  • How does KAYAK find such low prices on flights from Florida Keys to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Florida Keys to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Florida Keys to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Florida Keys is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Florida Keys to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to Florida Keys with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Florida Keys to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Florida Keys up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from Florida Keys to London

 
Need help choosing which airline to fly with from Florida Keys to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
KLMOverall score based on 1405 reviews
8.4Crew
7.3Food
7.8Boarding
7.1Entertainment
7.7Comfort
Airline reviews

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

2.0 MediocreAbisola, Oct 2025CDG - AMS
Read more KLM reviews

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

I don’t like that an equipment change caused my seat to change from 23A to 44A. The boarding was also delayed. The crew were excellent, however and very attentive. The food was not bad.

Worst airlines either. First leg was delayed because of crew not available. My connection was missed so they booked me automatically the next day! But, impossible to get anyone on site, web site does not let me access my reservation anymore, confirmed by useless agents over the phone. My 2-leg trip with part in business class arriving at 4:10pm ends up in an awful 3-leg arriving at 9pm the next day with no way to even choose the seats and of course at the very end of the plane. I can understand problems arrive but the way Air France handle it is just unacceptable. You are on your own. Apparently getting you to your destination is the only thing they consider their duty. The customer experience and fatigue is none of their concern. And I have a status with them. I will reconsider my priorities when flying with Air France and encourage everyone to do the same.

Our flight crew were terrific. And they handle a difficult passenger with finesse.

3 hour delay but out of their control. App said I get vouchers but when I applied for them, they were nowhere to be found in my account

I bought business class tickets but the seats are exactly like economy with no comfort seats nor an empty seat next to me provided. Very poor, low quality airline.

I don't understand the concept of paying to get your personal luggage onboard and then asked to check it in.... either sell the space or don't, its a hassle to carry those all through the airport just to make a check in at the last minute.

It was a great experience. The only thing I would have changed was that the bathrooms were never cleaned and they got very dirty.

Old airplanes small seats expensive tickets, not as expected overall and not comfortable according to the price

It was an OK flight with below mediocre service by their flight attendants

Wasted a lot of time trying to find the CDG lounge - it was not next to the connecting flight gate like the Air France staff said.

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

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