Carbon Emissions Offsetting

Flexjet is the only private provider in the U.S. to include a carbon emissions offset at no additional expense on every flight, anywhere, so you can take to the sky while taking CO2 out of the equation.

Driven by an increase in global travel, aircraft-related emissions have risen over the last two decades to include 16.3 billion metric tons of carbon (CO2). That is why we are the first to include full carbon offsets at no cost to you as part of our comprehensive sustainability program. One that uses independently verified credits to support many of the world’s most innovative clean energy projects.

Now more than ever, taking to the sky means sharing a heightened level of responsibility for the climate-altering chemicals released into our atmosphere with every departure. At Flexjet, our program raises the bar by offsetting CO2 emissions on every flight at no additional expense to our Owners.

Go Further in Your Pursuit

At Flexjet, our complimentary CO2 emissions offsets mean your every flight with us now qualifies as 100 percent carbon neutral at no cost to you. For those interested in lowering or even reversing their impact, our program offers multiple levels of participation. You may even opt to reduce your emissions through the use of sustainable aviation fuel (SAF) or accelerate the pace of change through support for the Aviation Climate Fund.

The Flexjet sustainability program is the result of our partnership with 4AIR, the first organization of its kind focused solely on private aviation. The contributions made on your behalf represent credits verified by leading authorities such as the Verified Carbon Standard (Verra), Climate Action Reserve, and Gold Standard.

Utilize Sustainable
Aviation Fuel (SAF)

Choose SAF for a direct emissions reduction of 5% or more

Flexjet will commit to having 12 percent of its annual fuel consumption come from SAF by 2030

If absent, SAF can be used where available while you own the credits

Contribute to the Aviation Climate Fund (ACF)

Become part of the solution through support for leading-edge research

The innovative ACF partners with top universities and research centers

ACF supports new flight-optimization algorithms, operational mitigation of environmental impacts, and more

100% of contributions go toward furthering promising technology within aviation sustainability

Program FAQS

Most notably, these include carbon dioxide (CO2), but emissions also include sulfur oxides, particulate matter (soot), water vapors, and ozone-depleting substances such as nitrous oxides. Water vapors and soot can create contrails and induced cirrus cloudiness, creating a warming effect stronger than that generated by CO2.

Data shows half of all aviation emissions were introduced in the last 20 years despite improving fuel efficiency. In 2018, one billion metric tons of carbon were released by aviation for the first time. As access to air travel continues to grow, it is clear that if we are to meet the increase in global demand, we must simultaneously pursue emissions reductions and the development of sustainable aviation technologies. Otherwise, the freedom of mobility we enjoy will be greatly compromised.

Carbon (CO2) emissions refer to the release of greenhouse gases created by burning fossil fuels, from coal to gasoline. These gases trap heat, contributing to rising average temperatures that could lead to varying degrees of social, environmental, and economic consequences.

Not surprisingly, aircraft-related emissions have risen in the last two decades to include 16.3 billion metric tons of carbon dioxide (CO2), enough to fill 366,000 Olympic-size swimming pools while weighing 290-times heavier than the entire Great Wall of China. When including non-CO2 pollutants, aviation accounts for approximately 3.5% to 5% of total global emissions. Furthermore, private aviation specifically represents just 2% of all air-travel-related emissions.

A carbon offset is a verified reduction or avoidance of one metric ton of CO2 (mtCO2). Calculating an offset requires determining a flight’s total carbon footprint and neutralizing it using verified credits in an amount that neutralizes the amount of CO2 released. Each credit contributes to a portfolio of sustainability projects and initiatives aimed at reducing global greenhouse gases.

The contributions made to projects on your behalf come in the form of CO2 credits verified by leading authorities such as the Verified Carbon Standard (Verra), Climate Action Reserve, and Gold Standard. Offsets are independently reviewed and purchased in an amount equal to your carbon emissions footprint before being permanently retired in a public registry. This registry ensures CO2 offsets are not double-counted and tracks offset production, ownership, and retirement.

Carbon represents a portion of the climate-impacting emissions generated by the average private aircraft, which is neutralized as part of your complimentary CO2 offset. At the same time, non-CO2 materials like gases and aerosols magnify the overall climate impact of aviation. Using a specifically designed emissions index, the effect of non-CO2 emissions is converted into a CO2-equivalent amount – CO2e.

SAF refers to jet fuel produced from renewable sources rather than fossil-based materials like petroleum. Because more than 90% of aviation emissions result from the combustion of non-renewable jet fuel, SAF is already reducing our industry’s carbon footprint. SAF represents a safe “drop-in” fuel that can be safely introduced without requiring equipment or engine modifications. Today, SAF is blended with conventional fossil jet fuel to meet the Jet A/A-1 specifications. Most often it is a 30/70 blend.

While sustainable aviation fuel supplies are ramping up and distribution is expanding by the day, it is still not consistently offered by most airports. A “book-and-claim” registry allows another traveler to utilize SAF where available while you claim the credit. This process makes the creation and distribution of SAF as efficient as possible, maximizing global emissions reductions while minimizing transportation as availability grows.

As the first organization of its kind focused solely on private aviation, 4AIR possesses an exceptional project portfolio built on results-driven sustainability initiatives in place across the globe. In fact, 4AIR was the first to trade on the International Air Transport Association’s Aviation Carbon Exchange. Most importantly, 4AIR’s multiple levels of participation make it easy to begin or even supplement your sustainable-living efforts.

Innovative Project Portfolio

The Mai Ndombe Redd+ Project

Democratic Republic of Congo

Alkumru Hydroelectricity Project


USAK Wind Farm Project


Florida N2O Abatement Project

United States of America

India Solar Energy Project


Rwanda Improved Cookstove Project


North Carolina Avoided Forest Conversion Project

United States of America

Northeast Improved Forest Management Project

United States of America

Prairie Wind

United States of America

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