We are committed to increasing the use of sustainable aviation fuel (SAF), one of the most essential tools for solving the emissions challenges of flying in the coming years. Sustainable aviation fuel can reduce carbon dioxide emissions by about 80% compared to fossil fuels. Increasing the use of SAF will increase the airline's costs, as SAF is clearly more expensive than fossil fuel. We are preparing for this by allocating a small portion of each flight ticket sold, about 20 cents per ticket, to the cost of sustainable aviation fuel. Here are 6 most common questions about sustainable aviation fuel.