Scuba Diving Before Flying

Scuba diving BEFORE flying

Scuba diving and flying are two thrilling experiences often combined during adventure-filled vacations. However, understanding the relationship between these activities is crucial for your safety. This guide will provide information on diving before flying, the risks involved, and best practices to ensure a safe and enjoyable experience.

The Risks: Decompression Sickness

The primary concern when diving before flying is decompression sickness (DCS), a condition resulting from nitrogen bubbles forming in the body’s tissues and bloodstream due to rapid pressure changes during ascent from a dive. Flying soon after diving can exacerbate this risk due to the following factors:

  • Lower cabin pressure: Airplane cabins have a lower pressure than at sea level, which can cause nitrogen bubbles to expand.
  • Dehydration: Air travel can lead to dehydration, which increases the risk of DCS.

Guidelines: Waiting Times Between Diving and Flying

To minimize the risk of DCS, the Divers Alert Network (DAN) provides guidelines on waiting times between diving and flying:

  • Single non-decompression dive: Wait at least 12 hours before flying.
  • Multiple dives or multiple days of diving: Wait at least 18 hours before flying.
  • Dives requiring decompression stops: Wait a minimum of 24 hours before flying.

These guidelines are conservative and designed to reduce DCS risk. Personal factors such as age, fitness, and dive profiles can impact individual risk, so always consult a diving professional or medical expert for personalized advice.

Tips for Safe Diving Before Flying

Follow these tips to maximize safety when scuba diving before flying:

  • Stay well-hydrated: Drink plenty of water before, during, and after your dive to reduce DCS risk.
  • Plan conservatively: Schedule your dive with ample safety stops and avoid aggressive dive profiles.
  • Monitor your dive: Use a dive computer to track your depth, time, and decompression status.
  • Seek professional advice: Consult a certified dive professional to discuss your flight and dive plans.
  • Listen to your body: Be cautious and reconsider diving if you feel unwell.


Scuba diving before flying is possible when you follow the appropriate guidelines and take necessary precautions. Adhere to the recommended waiting times, stay hydrated, and dive conservatively to ensure a safe and enjoyable experience. As always, consult a diving professional for personalized advice, and prioritize your well-being above all else.

Diving after flying? Read our guide here

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