Cheap flight tickets from Southampton to Dublin

Select preferred month for the cheapest flights

• OctOctober2025

  £182

  Average monthly temperature & precipitation

  Temperature 11°C

  Precipitation 58%

  Average price £182
  Select October

• NovNovember2025

  Cheapest

  £107

  Average monthly temperature & precipitation

  Temperature 11°C

  Precipitation 50%

  Average price £107
  Select November

• DecDecember2025

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  Average monthly temperature & precipitation

  Temperature 8°C

  Precipitation 51%

  Check available flights
  Select December

• JanJanuary2026

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  Average monthly temperature & precipitation

  Temperature 5°C

  Precipitation 38%

  Check available flights
  Select January

• FebFebruary2026

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  Average monthly temperature & precipitation

  Temperature 7°C

  Precipitation 50%

  Check available flights
  Select February

• MarMarch2026

  ‐

  Average monthly temperature & precipitation

  Temperature 7°C

  Precipitation 74%

  Check available flights
  Select March

• AprApril2026

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  Average monthly temperature & precipitation

  Temperature 8°C

  Precipitation 60%

  Check available flights
  Select April

• MayMay2026

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  Average monthly temperature & precipitation

  Temperature 11°C

  Precipitation 51%

  Check available flights
  Select May

• JunJune2026

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  Average monthly temperature & precipitation

  Temperature 12°C

  Precipitation 53%

  Check available flights
  Select June

• JulJuly2026

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  Average monthly temperature & precipitation

  Temperature 13°C

  Precipitation 70%

  Check available flights
  Select July

• AugAugust2026

  Best for exploring

  ‐

  Average monthly temperature & precipitation

  Temperature 15°C

  Precipitation 41%

  Check available flights
  Select August

• SepSeptember2026

  Best for exploring

  Warmest

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  Average monthly temperature & precipitation

  Temperature 16°C

  Precipitation 46%

  Check available flights
  Select September

Average monthly temperature & precipitation