Calculator

No-Fly Time Calculator

Estimate the earliest recommended time to fly after diving, based on DAN and certification agency guidelines.

Dive details

Last dive ended (date & time)

Diving history

Planned flight (date & time) (optional)

Enter to check if your flight is inside the recommended wait window.

Results

Enter values above to see results.

No-fly guidance is a recommendation based on published research, not a guarantee. Individual factors including dehydration, health, and dive profile can affect off-gassing. When in doubt, wait longer. Consult DAN or a dive medicine physician for specific concerns.