During the Flight: Wear compression socks on plane trips, especially if it's a lengthy one. They help counteract the lack of movement and the effects of sitting for long durations. After Arrival: If you've been on a long flight, consider wearing your compression socks for a few more hours post-landing.

While not a legal requirement, wearing flight socks (compression stockings) for an 8-hour journey is strongly recommended by medical professionals to prevent Deep Vein Thrombosis (DVT). Sitting in a cramped space for such a long period causes blood to pool in your lower legs, which can lead to painful swelling and the risk of dangerous blood clots. These socks apply graduated pressure—tightest at the ankle and loosening as they go up—to help push blood back toward your heart. In 2026, most travel clinics suggest that anyone over 40, those with circulatory issues, or even healthy travelers on long-haul flights use moderate compression (15-20 mmHg). Besides the health safety, they significantly reduce the "heavy leg" feeling and ankle swelling that often occurs during transatlantic or transcontinental travel. To maximize their effectiveness, you should put them on before you even leave for the airport and continue to move your feet and ankles frequently while in your seat to keep the circulation active.