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London to Miami flights in December 2026 from $693 LCY, LGW, LHR, LTN, SEN, STN → MIA

London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN), Stansted Airport (STN) → Miami International Airport (MIA)

For departures in December 2026, the cheapest return found recently is $693 with Icelandair, 28 Dec – 20 Jan 2027, found 3 days ago.

Return

In December 2026, the cheapest return fare on each of 8 departure dates is usually $760 to $824. Across all 18 departure dates we hold on this route, it is usually $715 to $777. Of the 2 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$693

28 Dec – 20 Jan 2027 · Icelandair

London Heathrow Airport (LHR) → Miami International Airport (MIA)

out 1 stop, back 1 stop

found 3 days ago

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
28 Dec – 20 Jan 2027$693Icelandairout 1 stop, back 1 stopfound 3 days agoSee prices for these dates
14 Dec – 31 Dec$743Virgin Atlanticout 1 stop, back 1 stopfound 4 days agoSee prices for these dates
17 Dec – 27 Dec$766British Airwaysout 1 stop, back 1 stopfound 7 days agoSee prices for these dates
25 Dec – 5 Jan 2027$772British Airwaysout 1 stop, back 1 stopfound 7 days agoSee prices for these dates
24 Dec – 5 Jan 2027$773American Airlinesout 1 stop, back 1 stopfound 7 days agoSee prices for these dates

Every date we hold

8 departure dates

13 Dec – 18 Dec: $778, found 7 days ago14 Dec – 31 Dec: $743, found 4 days ago15 Dec – 20 Dec: $970, found 3 days ago17 Dec – 27 Dec: $766, found 7 days ago21 Dec – 1 Jan 2027: $961, found 4 days ago24 Dec – 5 Jan 2027: $773, found 7 days ago25 Dec – 5 Jan 2027: $772, found 7 days ago28 Dec – 20 Jan 2027: $693, found 3 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
13 Dec – 18 Dec$778Aer LingusLondon Heathrow Airport (LHR) → Miami International Airport (MIA)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
14 Dec – 31 Dec$743Virgin AtlanticLondon Heathrow Airport (LHR) → Miami International Airport (MIA)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
15 Dec – 20 Dec$970Helvetic AirwaysLondon City Airport (LCY) → Miami International Airport (MIA)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
17 Dec – 27 Dec$766British AirwaysLondon Heathrow Airport (LHR) → Miami International Airport (MIA)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
21 Dec – 1 Jan 2027$961American AirlinesLondon Heathrow Airport (LHR) → Miami International Airport (MIA)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
24 Dec – 5 Jan 2027$773American AirlinesLondon Heathrow Airport (LHR) → Miami International Airport (MIA)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
25 Dec – 5 Jan 2027$772British AirwaysLondon Heathrow Airport (LHR) → Miami International Airport (MIA)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
28 Dec – 20 Jan 2027$693IcelandairLondon Heathrow Airport (LHR) → Miami International Airport (MIA)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates

Which month looks cheapest?

February 2027 is the cheapest month — from $542.

November 2026From $7731 departure date28 Nov – 28 Dec · found 3 days agoSee prices for these dates
December 2026From $6938 departure dates28 Dec – 20 Jan 2027 · found 3 days agoSee prices for these dates
January 2027From $6605 departure dates11 Jan 2027 – 14 Feb 2027 · found 4 days agoSee prices for these dates
February 2027From $542Cheapest seen1 departure date1 Feb 2027 – 26 Feb 2027 · found 5 days agoSee prices for these dates
March 2027From $7721 departure date25 Mar 2027 – 13 Apr 2027 · found 2 days agoSee prices for these dates
June 2027From $7521 departure date20 Jun 2027 – 1 Jul 2027 · found 4 days agoSee prices for these dates
October 2027From $7061 departure date16 Oct 2027 – 1 Nov 2027 · found 5 days agoSee prices for these dates

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work