Can a 4 hour flight cause blood clots?

However, anyone traveling more than four hours, whether by air, car, bus, or train, can be at risk for blood clots.



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Prevent Blood Clots During Travel
  1. Stand up or walk occasionally. ...
  2. Exercise your calf muscles and stretch your legs while you're sitting. ...
  3. Talk to your doctor about wearing compression stockings or taking medicine before departure if you have additional risk factors for blood clots.


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The following are the most common symptoms of DVT that occur in the affected part of the body (usually the leg or arm): Swelling of your leg or arm. Pain or tenderness that you can't explain. Skin that is warm to the touch.

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Even if you travel a long distance, the risk of developing a blood clot is generally very small. Your level of risk depends on the duration of travel as well as whether you have any other risks for blood clots.

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Loose-fitting clothing may be beneficial in avoiding constriction of veins. Some recommend taking short naps, instead of long ones, to avoid prolonged inactivity. If you have any of the risk factors for DVT, consult your physician before long trips.

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Remember that anything over 6 hours flying time is considered long haul, but flights of longer than 10 hours are not uncommon either. One important thing to remember is to keep your seat belt fastened at all times in case of unexpected turbulence.

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However, anyone traveling more than four hours, whether by air, car, bus, or train, can be at risk for blood clots.

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Research has shown that wearing compression socks during long-haul flights can significantly reduce the risk of developing blood clots and alleviate symptoms of leg fatigue and discomfort.

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