Cheapest one-way flights from London to Madrid in December from $113

AirHint found the following cheapest one-way flights from London (LCY) to Madrid (MAD) in December 2025 (see full year).

One-Way flights

02 Dec Iberia direct
12 Dec Iberia direct
31 Dec Iberia direct
16 Dec Iberia direct
04 Dec Iberia direct
13 Dec KLM
26 Dec Iberia direct
15 Dec Iberia direct
17 Dec Iberia direct
09 Dec KLM

Also check the deals for return flights from London to Madrid in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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