£210 Find Cheap Flights from London Heathrow Airport to Key Largo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Key Largo departing on 8/5. 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.
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Cheap Flight Deals from Heathrow to Key Largo (LHR-MIA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Key Largo 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.

Recent return flight deals from Heathrow to Key Largo

KAYAK's recommended return flight deals from the most popular airlines that fly from Heathrow to Key Largo.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
 Logo
12:15 - 16:50LHR-MIA
9h 35mdirect
 Logo
12:34 - 07:20MIA-LHR
13h 46m1 stop
Mon, 12 May - Mon, 19 May
Air Canada Logo
14:05 - 23:48LHR-MIA
14h 43m1 stop
Air Canada Logo
07:55 - 06:30MIA-LHR
17h 35m1 stop
£374Air Canada
Find Deal
Sat, 3 May - Sun, 18 May
British Airways Logo
13:40 - 18:20LHR-MIA
9h 40mdirect
British Airways Logo
14:53 - 06:55MIA-LHR
11h 02m1 stop
£391British Airways
Find Deal
Sat, 3 May - Sat, 10 May
British Airways Logo
09:15 - 16:46LHR-MIA
12h 31m1 stop
British Airways Logo
15:05 - 06:55MIA-LHR
10h 50m1 stop
£395British Airways
Find Deal
Sat, 3 May - Tue, 6 May
Virgin Atlantic Logo
17:10 - 13:55LHR-MIA
25h 45m1 stop
Virgin Atlantic Logo
19:25 - 09:25MIA-LHR
9h 00mdirect
£403Virgin Atlantic
Find Deal
Mon, 5 May - Mon, 12 May
Virgin Atlantic Logo
15:55 - 20:35LHR-MIA
9h 40mdirect
Virgin Atlantic Logo
19:25 - 09:25MIA-LHR
9h 00mdirect
£406Virgin Atlantic
Find Deal
Thu, 8 May - Thu, 22 May
Finnair Logo
11:30 - 20:15LHR-MIA
13h 45m1 stop
Finnair Logo
14:00 - 07:50MIA-LHR
12h 50m2 stops
£406Finnair
Find Deal
Fri, 2 May - Tue, 6 May
TAP AIR PORTUGAL Logo
06:00 - 14:45LHR-MIA
13h 45m1 stop
TAP AIR PORTUGAL Logo
16:30 - 11:00MIA-LHR
13h 30m1 stop
£428TAP AIR PORTUGAL
Find Deal
Thu, 18 Sep - Thu, 25 Sep
TAP AIR PORTUGAL Logo
19:50 - 21:45LHR-MIA
30h 55m1 stop
TAP AIR PORTUGAL Logo
03:55 - 22:55MIA-LHR
14h 00m1 stop
£438TAP AIR PORTUGAL
Find Deal
Thu, 4 Sep - Wed, 10 Sep
Finnair Logo
11:00 - 20:18LHR-MIA
14h 18m2 stops
Finnair Logo
14:00 - 07:50MIA-LHR
12h 50m2 stops
£465Finnair
Find Deal
Thu, 8 May - Mon, 12 May

Good to know - Cheap tickets from London Heathrow Airport to Key Largo

Low season

June

High season

December

Cheapest flight

£210
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly (18% more expensive on average)
Flight from London Heathrow Airport to Miami

When to book flights from Heathrow to Key Largo

Are your dates flexible? Find out the best times to travel from Heathrow to Key Largo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs for booking flights from London to Key Largo

  • Which airports will I be using when flying from London Heathrow Airport to Key Largo?

    When flying out of London Heathrow Airport you’ll be using London Heathrow. Key Largo does not have its own airport so you’ll be flying into nearby Miami airport, which is 49.7 mi away.

  • How long does a flight from London Heathrow Airport to Key Largo take?

    Direct flights cover the 4,414 miles separating London Heathrow Airport and Key Largo in about 9h 30m.

  • How many flights are there between London Heathrow Airport and Key Largo?

    29 direct flights run between London Heathrow Airport and Key Largo on a daily basis. On average, there are about 207 departures each week.

  • What’s the cheapest day of the week to fly between London Heathrow Airport and Key Largo?

    Consider leaving on a Monday and avoid Saturdays if you're looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Fridays and the most expensive ones on Mondays.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Key Largo?

    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 London Heathrow Airport to Key Largo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Key Largo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key Largo from London Heathrow Airport 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 London Heathrow Airport to Key Largo?

    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 Key Largo with an airline and back to London Heathrow Airport with another airline.

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

    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 Key Largo from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from London Heathrow Airport to Key Largo?

    In the last 72 hours, the cheapest one-way ticket between London Heathrow Airport and Key Largo found on KAYAK was with Vueling for £210. Air Canada offered a return connection from £374 and Lufthansa from £378.

See more FAQs

Top tips for finding cheap flights from London Heathrow Airport to Key Largo

  • There is no airport in Key Largo. Instead, you’ll be flying into Miami Airport when flying between London Heathrow Airport and Key Largo.
  • The cheapest flight from London to Key Largo was found 40 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be July, August and September. The cheapest month to fly is September.
See more tips

Top 5 airlines serving Heathrow to Key Largo

Need help choosing which airline to fly with from Heathrow to Key Largo? 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.
7.8
KLMOverall score based on 1331 reviews
8.4Crew
7.8Boarding
7.1Entertainment
7.7Comfort
7.3Food
Airline reviews

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

10.0 ExcellentAnonymous, Apr 2025INL - AMS
Read more KLM reviews

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

Good food. Excellent crew service. Clean aircraft. Narrow seats and isle.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

My American Airlines flight was deleted and you guys never let me know

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

Seats were old and dirty, for a long haul flight you expect to be able to recline and for the av to work properly. Choice for vegans was fruit….

The Virgin Atlantic crew was very good. However, the equipment was OK, the seats were OK, but her bags did not arrive with me. Two bags showed up a day later and I’m still waiting for my third back.

The crew was very good. However, the equipment was a bit dated. Some of the electronics were not working. To top it, three bags didn’t arrive with me. Two of them were delivered a day later. I’m still waiting for the third bag, I was so looking forward to this virgin Atlantic flight, but, I am disappointed.

Awful. I told them to cancel my return flight and they didn’t then charged me +$800 days before the flight for a biz class upgrade bid. When I called to confirm cancellation and get refund on buz class upgrade they said I had to go thru orbitz and it was too late. Scammers. Beware.

Was a cheap flight and it got me to Portugal on time. For economy there was ample leg room and the flight attendants were pleasant and helpful.

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils. I'd originally booked to fly Business Class; those seats didn't look that great either.

First time and I enjoyed the trip…. Will fly again soon 🔜

Delayed flight because other plane was occupying the gate for longer than expected. Once we boarded the plane had to wait 1 hour before taking off. We. Almost lost our connection flight and the baggage didn’t make it. We had to wait two days to receive our luggage. Hope they improve the timing or work with the airport to get better service.

I’m still missing my bags. I’m soo frustrated

Boarding went fast. Lisbon's gates are too small for the flights they serve.

Got in on time. Food was the worst ever. Comfort was terrible. Check in was incredibly bad.

The flight schedules are better than some airlines. Their website is terrible, it doesn’t store any information so every time you fly you have to re-enter the data. The flight was late taking off but we still got to our destination on time.

Great overall experience with TAP - would not hesitate to recommend for your next trip to or from Portugal

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

They did not provide free WiFi, It could be purchased for, I think, around $25, This seemed excessive.

Reliable, great value, but not outstanding in any aspect. This is similar to the experience you get in most international carriers like Etihad or Delta.

Everything you need to know for your flight from Heathrow to Key Largo

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