Our environmental commitment

At United, our mission is connecting people and uniting the world. Every day, we celebrate the people and communities across our planet — which is why we understand the need for bold action now to combat climate change. United is committed to reducing our emissions, so that we can continue to appreciate the wonders of this world, today and into the future.

From our CEO

“We’re embracing a new goal to be 100% green by 2050 by reducing our greenhouse gas emissions 100%. And we’ll get there not with flashy, empty gestures, but by taking the harder, better path of actually reducing the emissions from flying. We (also) realize there’s a limit to what a single company can do alone. That’s why we are continuing to seek opportunities to collaborate with other industries. We must reach across industries to develop coordinated efforts to accomplish what must be our collective goal of carbon neutrality.”

— Scott Kirby, Chief Executive Officer

This isn’t your average sustainability story

Sustainable aviation fuel, hydrogen engines and electric planes may sound like something from a sci-fi story. But our airline (and over 65,000 heroes) are working every day to take that idea from fiction to reality.

It’s the true story of our vision to do the right thing, the smart thing and the hard thing. Because it’s worth it to us when good leads the way.

Watch how.


United wins Airline Strategy Award for Environment, Social & Governance 2022

The Airline Strategy Awards logo

United was the winner of the Environment, Social & Governance award in 2022. According to FlightGlobal, this award is given to an airline demonstrating, “An unwavering commitment to the environment and sustainability, exhibited by the airline’s actions through any of the following: environmental protection and consciousness; embedding long-term sustainability objectives into business planning and culture; innovating with new technological or business developments to help achieve environmental goals; support of underprivileged classes or groups; humanitarian aid; and good corporate citizenship."

Going 100% green by 2050

We’re planning to become 100% green by reducing greenhouse gas (GHG) emissions by 2050 without relying on traditional offsets. Making significant investments in sustainable aviation fuel and carbon capture and sequestration will help us get there.

Learn more about our climate commitment

Sustainable fuel sources

Sustainable aviation fuel (SAF) is an alternative to fossil fuels, emitting up to 80% less carbon on a lifecycle basis. As the cleanest fuel substitute for traditional jet fuel, SAF is the fastest and most effective way to reduce GHG emissions across our fleet.

Learn more about sustainable aviation fuel

Carbon capture and sequestration

Climate change calls for big solutions, so we’re making a multimillion-dollar investment in carbon capture and sequestration technology to reduce our net GHG emissions.

Explore the carbon capture and sequestration process

Innovation for the future

United's corporate venture capital fund, United Airlines Ventures, allows the airline to continue investing in emerging companies that have the potential to influence the future of travel sustainably

Learn about our investment in electric aircraft

Aircraft modernization and operational efficiency

We’re increasing fuel efficiency and reducing GHG emissions through technology and process innovation in the air and on the ground.

See how we’re improving our fuel efficiency

Eco-Skies Alliance

The Eco-Skies Alliance is a first-of-its-kind program involving leading global corporations working with United to help power flying in a more sustainable way. Through this innovative program, our corporate customers have the opportunity to reduce their environmental impact and help make sustainable aviation the norm.

Learn about the Eco-Skies Alliance

Be part of the change

United believes in a future of sustainable aviation, and we want you to join us to help make our vision a reality.


Individual support opportunities

Contribute to sustainable aviation

  1. We’ll collect your contribution in a designated SAF account.
  2. At the end of the year, we’ll total the contributions, so be sure to check back to see how much we raised.
  3. United or one of it's wholly-owned subsidiaries will use 100% of the contributions for the future purchase and use of SAF and/or SAF-blended products.

Together, we can take real steps to accelerate sustainable aviation.

Make your voice heard

We encourage you to reach out to your elected officials to request policy support for low-carbon solutions. Send a letter to Congress now.

Send a letter

Corporate support opportunities

Join the Eco-Skies Alliance

The Eco-Skies Alliance program allows corporate customers the opportunity to pay the additional cost for sustainable aviation fuel. This contribution goes beyond traditional carbon offsets and will show there is demand for low emissions fuel solutions. Enroll your company today to participate in our alliance program and reduce your carbon emissions from your United flights.

Join now


Our climate disclosure

Corporate Responsibility Report

To learn more about how we support the environment through our business practices, view our Corporate Responsibility Report.

View report

Climate Lobbying Report

To learn more about our global advocacy activities and policy engagement – both direct and indirect – in alignment with the goals of the Paris Agreement.

View report

Eco-Skies Alliance and the Eco-Skies Alliance Logo are trademarks of United Airlines, Inc. related to its customer SAF purchase program.

*These donations are not tax deductible. United is unable to allocate emissions reductions to participants for their travel or provide documentation concerning the use of SAF on specific flights. Donations may be used to purchase SAF from entities in which United holds an equity or other financial interest. There is no assurance as to the timing of the use of donated funds to purchase SAF, SAF-blended products or on initiatives we believe will help decarbonize aviation. For example, purchases may be delayed, including because of unavailability of sufficient quantities of SAF or SAF-blended products, or the price of SAF or SAF-blended products. Donations are not a pre-purchase of air transportation and no travel credit will be provided, unless specifically agreed in writing by United. Donors retain no legal interest in the amounts donated, which amounts belong entirely to United, or in any investments, financings, or purchases made by United with donated funds. United retains the right to make decisions regarding the use of these funds on the purchase of SAF, SAF-blended products or on potential decarbonization initiatives in its sole and absolute discretion.