top of page

Long-Haul Flight Essentials: Why Below-Knee Compression Socks Are a Must-Have

Updated: Dec 23, 2025


The Importance of Compression Socks for Long Flights


Are you preparing for a long-haul flight? Below-knee compression socks should be a staple in your hand luggage. They offer several benefits that can enhance your travel experience.


Preventing DVT (Deep Vein Thrombosis)


On flights lasting over 4 to 5 hours, blood can pool in the calf veins. This is particularly true when you find yourself in that familiar “knees vs seatback” position.


Research shows that passengers wearing below-knee graduated compression stockings had a 0% incidence of calf DVT. In contrast, around 10% of those who did not wear them experienced DVT on long-haul flights. This significant difference highlights the importance of wearing these socks.



Comfort for Your Ankles


Compression socks are not just about health; they also improve comfort. Studies indicate that these socks can reduce leg swelling and discomfort during and after flights. You won’t have to struggle to remove your shoes upon arrival, making your journey much more pleasant.


Scientific Backing


A Cochrane review provides high-certainty evidence that flight socks significantly reduce the risk of symptomless DVT on flights longer than 4 to 5 hours. Importantly, no major side effects have been reported. This solid scientific foundation makes compression socks a wise choice for any long-distance traveller.


Who Should Consider Compression Socks?


Guidelines recommend compression stockings as a preventive measure for higher-risk travellers on long journeys. This includes individuals with a history of DVT or pulmonary embolism, recent surgery, active cancer, pregnancy, significant immobility, or known clotting disorders. If you fall into a higher-risk category, it’s crucial to consult your doctor before your flight.



Tips for Using Compression Socks Effectively


To maximise the benefits of compression socks, follow these tips:


  1. Choose the Right Size: Ensure you select below-knee graduated compression socks that fit properly.


  2. Wear Them Before Boarding: Put on your compression socks before you board the plane and keep them on until you are walking again after landing.


  3. Stay Active: Combine wearing socks with regular calf pumps, aisle walks, and good hydration. Your legs shouldn’t have to endure a long-haul shift just because you are.


Conclusion


Next time you prepare for an ultra-long flight, don’t forget to pack your compression socks. They can make a world of difference in your comfort and health during travel. Tag a frequent flyer who never skips the window seat and share this essential tip!



🔬 Key References (for the nerds in row 1A):


  • Scurr JH et al. Lancet 2001;357:1485–89 – RCT of long-haul travellers: 0% DVT with below-knee class I stockings vs ~10% without.



  • Belcaro G et al. Angiology 2002 – LONFLIT studies: elastic stockings reduced edema, “flight microangiopathy” and travel-related venous thrombosis on long flights.



By incorporating below-knee compression socks into your travel routine, you can ensure a safer and more comfortable journey.

 
 
 

Comments


  Social Icon

  • X
  • Instagram Social Icon
  • Facebook Social Icon

UK Registered. Company House 084935409

UK VAT GB456024800 

Business Terms of Conditions

Watford Clinic - Abbotts House, 198 Lower High Street, Watford, WD17 2FF, England, UK

 

Stansted Airport Clinic- Weston Business Park, Parsonage Road, Takeley, Essex, CM22 6PU

Luton Airport Clinic- Morton House, 21 Kimpton Road, Luton, LU2 0HL 

                                                                                          © Copyright 2026. Terms of Use. All rights reserved  FlyingMedicine Ltd ™

bottom of page