£305 Find Cheap Flights from London Heathrow Airport to Key Largo

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Key Largo departing on 19/11. 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

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Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Key Largo

Wed, 19 Nov - Wed, 3 Dec
Scandinavian Airlines Logo
06:40 - 17:50LHR-MIA
16h 10m1 stop
Scandinavian Airlines Logo
19:40 - 17:00MIA-LHR
16h 20m1 stop
£305Scandinavian Airlines
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Sat, 1 Nov - Wed, 12 Nov
Scandinavian Airlines Logo
10:20 - 18:50LHR-MIA
36h 30m1 stop
Scandinavian Airlines Logo
19:40 - 17:40MIA-LHR
17h 00m1 stop
£310Scandinavian Airlines
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Sat, 15 Nov - Thu, 27 Nov
TAP AIR PORTUGAL Logo
13:40 - 14:50LHR-MIA
30h 10m1 stop
TAP AIR PORTUGAL Logo
16:35 - 21:35MIA-LHR
24h 00m1 stop
£320TAP AIR PORTUGAL
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Wed, 10 Sep - Wed, 24 Sep
TAP AIR PORTUGAL Logo
19:50 - 14:45LHR-MIA
23h 55m1 stop
TAP AIR PORTUGAL Logo
16:30 - 22:55MIA-LHR
25h 25m1 stop
£322TAP AIR PORTUGAL
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Mon, 1 Sep - Thu, 25 Sep
Virgin Atlantic Logo
15:55 - 20:35LHR-MIA
9h 40mdirect
Virgin Atlantic Logo
19:25 - 09:25MIA-LHR
9h 00mdirect
£369Virgin Atlantic
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Tue, 2 Sep - Mon, 15 Sep
British Airways Logo
08:55 - 17:15LHR-MIA
13h 20m1 stop
British Airways Logo
15:10 - 06:55MIA-LHR
10h 45m1 stop
£373British Airways
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Mon, 1 Sep - Thu, 25 Sep
Virgin Atlantic Logo
10:45 - 15:45LHR-MIA
10h 00mdirect
Virgin Atlantic Logo
19:25 - 09:25MIA-LHR
9h 00mdirect
£375Virgin Atlantic
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Wed, 17 Sep - Mon, 22 Sep
British Airways Logo
12:15 - 16:50LHR-MIA
9h 35mdirect
British Airways Logo
13:29 - 06:20MIA-LHR
11h 51m1 stop
£378British Airways
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Mon, 1 Sep - Mon, 8 Sep
Finnair Logo
14:10 - 00:08LHR-MIA
14h 58m1 stop
Finnair Logo
16:04 - 19:45MIA-LHR
22h 41m1 stop
£417Finnair
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Wed, 10 Sep - Fri, 14 Nov
Finnair Logo
08:20 - 20:35LHR-MIA
17h 15m1 stop
Finnair Logo
16:15 - 08:35MIA-LHR
11h 20m1 stop
£427Finnair
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Useful Info

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

Low seasonJune
High seasonDecember
Cheapest flight£210
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly (20% 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?

    26 direct flights run between London Heathrow Airport and Key Largo on a daily basis. On average, there are about 187 departures each week.

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

    Consider leaving on a Wednesday 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 Mondays and the most expensive ones on Wednesdays.

  • 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. Scandinavian Airlines offered a return connection from £305 and TAP AIR PORTUGAL from £320.

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 44 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 November.

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 1358 reviews
7.2Food
7.8Boarding
7.1Entertainment
7.7Comfort
8.4Crew
Airline reviews

Klm start boarding while somw air issue in the plan

8.0 ExcellentA, Jun 2025AMS - YYZ
Read more KLM reviews

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

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

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.

You should not have to pay for WiFi in business class

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.

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.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

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.

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

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.

Terrible flight attendant attitude. Average 3-star hotel employee has better hospitality skills. Business class seats are literally a joke. TAP executives should ride business class in other airlines to develop some rudimentary sense of what business class is.

Checkin was very slow, we had checked in online and hoping we could do a bag drop at the airport. However everyone with checked bags had to queue up and it took over 40mins. Our advice arrive extra early or you will be rushing to the gate.

Very pleasant flight, crew was very nice. The flight was really smooth, big plane. The seats are kind of close together, so comfort was just OK. The boarding process on the way back to New York was a little chaotic. It took a long time.There were no announcements, no loudspeaker just one staff yelling out of instructions and a lot of people crowding in before their term to board. So that could really be improved a lot.

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

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

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

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Boarding was fairly chaotic. One of your employees clipped my ankle as he was passing with an empty wheelchair and not only did not apologize but stated something to the effect of “oh forGod’s sake.” There was plenty of room for him to pass. otherwise, everything was excellent.

Fantastic! Great seats! Friendly staff! Amazing selection of shows and movies! Smooth ride! I don’t know what more I could have asked for honestly. They made flying a breeze this time around.

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

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