SESK: Stuff Everyone Should Know · sesk.info/scuba-fly-after-multiple-days
After several dives a day or several days of diving, DAN recommends waiting how long before flying?
At least 18 hours.
- At least 18 hours ✔
- At least 6 hours
- At least 72 hours
Why: More dives mean more nitrogen stored in your body, so it needs more time to leave. Dives that needed decompression stops call for substantially longer than 18 hours.
Huh, didn't know that: Longer surface intervals than DAN's minimums reduce the risk even more.
On the last day of a dive trip, I go snorkeling. Same fish, fewer bubbles.
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References
Answer: At least 18 hours. More dives mean more nitrogen stored in your body, so it needs more time to leave. Dives that needed decompression stops call for substantially longer than 18 hours.
- DAN: Flying After Diving dan.org/health-medicine/health-resources/diseases-conditions/flying-after-diving
For multiple dives per day or multiple days of diving, the recommendation is a minimum preflight surface interval of 18 hours.
Checked 2026-10-12.
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