Flights from Georgia to Europe or further afield usually involve a connection, and the total journey often runs 6-10 hours or more. Sitting motionless that long raises the risk of deep vein thrombosis (DVT) — a condition where a blood clot forms in a leg vein. The risk is low, but almost entirely preventable once you know what actually helps.
🩸 Why the risk builds up on long flights
Prolonged immobility, low cabin pressure and dry cabin air all slow down blood flow in the legs. The longer you sit in one position, the higher the odds that blood pools and clots in a vein — most often behind the knee or in the calf.
⚠️ Symptoms to watch for
- Swelling in one leg, especially the calf or ankle
- Pain or a heavy feeling when you stretch the leg
- Redness or unusual warmth over one specific spot
- Shortness of breath or chest pain — a possible sign of pulmonary embolism, which needs emergency care
If these symptoms don't fade after landing, or get worse, see a doctor immediately — early diagnosis matters.
✅ Practical prevention in flight
- Get up and walk the aisle every 1-2 hours
- Simple calf and ankle exercises right in your seat — ankle circles, raising and lowering your heels
- Compression socks (15-20 mmHg) noticeably improve circulation on long flights
- Drink enough water — alcohol and too much coffee make dehydration worse
- Avoid crossing your legs for long stretches in one position
🧬 Who's at higher risk
- Recent surgery or injury
- Pregnancy and the postpartum period
- Hormonal birth control or hormone therapy
- Obesity or a family history of blood clots
- Smoking and older age
If you fall into one of these groups and have a 4+ hour flight ahead, talk to your doctor beforehand — sometimes extra precautions are recommended.
💺 Seat choice and other tips
Picking an aisle seat or one with extra legroom (see the seat selection strategy) makes it physically easier to get up during the flight. For more long-haul comfort tips, see the long flight survival guide, and for ear pressure specifically, the ear pain guide.
Emergency medical care abroad can get expensive fast — check the travel insurance guide before you fly. Search flights and compare fares on Travel365's price calendar.
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