Low prices
Fly from London Heathrow to Portugal during December 2026 for as little as £134.99*.
From just £134.99*
Fly from London Heathrow to Portugal from just £134.99* in December 2026. We'll show you which destinations in Portugal you can fly to from London Heathrow (LHR) Airport each day in December 2026.
To book, simply select your desired flights. The best prices for flights London Heathrow – Portugal start at just £134.99* in December 2026.