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SESK: Stuff Everyone Should Know · sesk.info/sport-scuba-wait-24

After scuba diving that required a controlled ascent, how long should you wait before flying?

At least 24 hours.

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  1. 12 hours
  2. 6 hours
  3. 24 hours ✔

Why: The AIM advises waiting at least 24 hours after a dive that required a controlled ascent. Nitrogen absorbed while diving can cause decompression sickness when you fly.

Huh, didn't know that: Before flying above 8,000 feet, the AIM advises waiting at least 24 hours after any scuba dive.

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References

Answer: 24 hours. The AIM advises waiting at least 24 hours after a dive that required a controlled ascent. Nitrogen absorbed while diving can cause decompression sickness when you fly.

  1. FAA AIM 8-1-2 Effects of Altitude www.faa.gov/air_traffic/publications/atpubs/aim_html/chap8_section_1.html
    at least 24 hours after diving that required a controlled ascent
    Checked 2026-10-10.
  2. FAA AIM 8-1-2 Effects of Altitude www.faa.gov/air_traffic/publications/atpubs/aim_html/chap8_section_1.html
    at least 12 hours after diving that did not require a controlled ascent
    Checked 2026-10-10.
  3. FAA AIM 8-1-2 Effects of Altitude www.faa.gov/air_traffic/publications/atpubs/aim_html/chap8_section_1.html
    The recommended wait time before going to flight altitudes above 8,000 feet is at least 24 hours after any SCUBA dive.
    Checked 2026-10-10.

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