Cheap flight tickets from Belfast to London

Select preferred month for the cheapest flights

• OctOctober2025

  ‐

  Average monthly temperature & precipitation

  Temperature 10°C

  Precipitation 41%

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  Select October

• NovNovember2025

  ‐

  Average monthly temperature & precipitation

  Temperature 7°C

  Precipitation 43%

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  Select November

• DecDecember2025

  ‐

  Average monthly temperature & precipitation

  Temperature -1°C

  Precipitation 41%

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  Select December

• JanJanuary2026

  ‐

  Average monthly temperature & precipitation

  Temperature -3°C

  Precipitation 48%

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  Select January

• FebFebruary2026

  ‐

  Average monthly temperature & precipitation

  Temperature -°C

  Precipitation 46%

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  Select February

• MarMarch2026

  ‐

  Average monthly temperature & precipitation

  Temperature 3°C

  Precipitation 45%

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  Select March

• AprApril2026

  ‐

  Average monthly temperature & precipitation

  Temperature 8°C

  Precipitation 56%

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  Select April

• MayMay2026

  ‐

  Average monthly temperature & precipitation

  Temperature 15°C

  Precipitation 45%

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  Select May

• JunJune2026

  Best for exploring

  ‐

  Average monthly temperature & precipitation

  Temperature 18°C

  Precipitation 43%

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  Select June

• JulJuly2026

  Warmest

  ‐

  Average monthly temperature & precipitation

  Temperature 20°C

  Precipitation 45%

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  Select July

• AugAugust2026

  ‐

  Average monthly temperature & precipitation

  Temperature 19°C

  Precipitation 38%

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  Select August

• SepSeptember2026

  Best for exploring

  ‐

  Average monthly temperature & precipitation

  Temperature 18°C

  Precipitation 33%

  Check available flights
  Select September

Average monthly temperature & precipitation