Cheap flight tickets from London to Saint Lucia

Select preferred month for the cheapest flights

• OctOctober2025

  Warmest

  £1302

  Average monthly temperature & precipitation

  Temperature 27°C

  Precipitation 74%

  Average price £1302
  Select October

• NovNovember2025

  ‐

  Average monthly temperature & precipitation

  Temperature 26°C

  Precipitation 80%

  Check available flights
  Select November

• DecDecember2025

  £714

  Average monthly temperature & precipitation

  Temperature 25°C

  Precipitation 54%

  Average price £714
  Select December

• JanJanuary2026

  £886

  Average monthly temperature & precipitation

  Temperature 25°C

  Precipitation 58%

  Average price £886
  Select January

• FebFebruary2026

  Best for exploring

  ‐

  Average monthly temperature & precipitation

  Temperature 25°C

  Precipitation 50%

  Check available flights
  Select February

• MarMarch2026

  Best for exploring

  ‐

  Average monthly temperature & precipitation

  Temperature 25°C

  Precipitation 48%

  Check available flights
  Select March

• AprApril2026

  Cheapest

  £667

  Average monthly temperature & precipitation

  Temperature 26°C

  Precipitation 50%

  Average price £667
  Select April

• MayMay2026

  ‐

  Average monthly temperature & precipitation

  Temperature 26°C

  Precipitation 41%

  Check available flights
  Select May

• JunJune2026

  ‐

  Average monthly temperature & precipitation

  Temperature 26°C

  Precipitation 60%

  Check available flights
  Select June

• JulJuly2026

  ‐

  Average monthly temperature & precipitation

  Temperature 26°C

  Precipitation 77%

  Check available flights
  Select July

• AugAugust2026

  ‐

  Average monthly temperature & precipitation

  Temperature 26°C

  Precipitation 74%

  Check available flights
  Select August

• SepSeptember2026

  Warmest

  ‐

  Average monthly temperature & precipitation

  Temperature 27°C

  Precipitation 76%

  Check available flights
  Select September

Average monthly temperature & precipitation