CO2ZERO conditions

Read the conditions that apply when you contribute to making your flight CO₂ neutral via the compensation service CO2ZERO.


  1. The terms & conditions of CO2ZERO are in addition to the general conditions of carriage for passengers and baggage
  2. CO2ZERO is only possible in combination with a KLM travel document or tickets in which at least one KLM flight is included
  3. All KLM flights, regardless point of origin, point of sale or embarkation point can be made CO2ZERO      
  4. CO2ZERO is strictly personal; passengers travelling together can choose on an individual basis to compensate      

Eligible flights

  1. Operated flights i.e. flown by KLM Royal Dutch Airlines, Air France, Delta Air Lines, Kenya Airways
  2. All code share flights with KLM flight number and operated by  JJ, GF, TE, EI, UX, XM, AZ, MN, CZ, MH, KQ, QX, AS, CO, AM, DL, EV, OH, F8, PS, SU, OK, IG, MA, CY      


  1. Emission values of KLM, Air France and Delta Air Lines are based upon actual emission values in relation to actual fuel burn
  2. Emission values of operating partners are based upon generic values submitted by aircraft manufacturers (i.e. Boeing, Airbus)      


  1. CO2 emission is calculated for all the flights in your booking. Per flight the calculation is based upon the type of aircraft used, the distance flown and the historical load factor of that specific flight. The calculation method and figures are frequently audited by KPMG      


  1. CO2ZERO uses Gold Standard certified emission reductions to help finance the development of clean energy projects in developing countries.
  2. Gold Standard is a Switzerland-based organisation supported by 53 NGO’s worldwide and sets the highest standard in certified emission reductions. This highest-achievable sign of excellence in CO2 compensation is awarded to projects that are most effective in reducing CO2 emissions and developing clean, renewable energy sources. Detailed information on Gold Standard can be found at   

Consumer price for compensation

  1. Twice a year the price for compensation can be adjusted based upon the purchasing price of new certified emission reductions      


  1. If, due to a reason over which you have no control, you cannot make use of your flight, you may be entitled to a refund of the amount you paid.
  2. KLM cancelled your flight
  3. You missed your connecting intercontinental KLM flight following a flight operated by KLM, Delta, Air France or Kenya Airways
  4. If any of these reasons apply to your situation please continue completing the refund form      
  5. You can only request a refund through      


  1. Verification of accountants of KPMG, one of the world’s leading networks of professional firms providing Audit, Tax, and Advisory services, assures that both emission norms and calculation methodology are compliant with international standard rules and conditions for carbon emissions.