A long flight includes more than time in the air. Airport waits, connections and the drive after landing can add hours of sitting. Plan movement around the whole journey, within your ability and the travel rules.

Move your legs regularly and walk when permitted. Travel guidance suggests opportunities about every one to two hours. The seat-belt sign and crew instructions take priority; a reminder is not permission to ignore turbulence.

Before boarding, consider a comfortable walk. In the seat, use gentle movements suited to you. When it is safe, take a short permitted walk. This is a planning aid, not a guarantee against a blood clot.

A previous clot, recent surgery or other relevant health factors can change the decision. Ask a clinician before travel. Fitness alone does not settle clot risk, and a general video cannot choose medicines or compression stockings for you.

New unexplained leg swelling or pain needs assessment. Sudden trouble breathing, chest pain, coughing blood or fainting needs urgent help. Alert the crew if symptoms occur in flight; do not treat them as a stretching challenge.

Keep your foot space practical and arrange assistance if needed. The full article includes a journey worksheet and explains which questions to raise before departure. Movement advice and jet-lag planning address different problems.