Carbon Calculator

At Delta, we know that reducing our impact on the environment will improve the sustainability of our planet as well as our business. When it comes to air travel, jet fuel is by far the biggest source of carbon emissions. In fact, it makes up more than 98.5% of our total carbon footprint. In addition to improving fuel-saving measures by ordering new, more efficient planes, adding winglets, and streamlining operations, we partner with programs, like The Nature Conservancy®, that strive to stop deforestation and promote alternative energy.

Through The Nature Conservancy, you can now view the environmental impact of your travels and make a donation to support forest protection projects that produce measurable benefits to the atmosphere. 

To learn more about the many ways Delta is working to protect the environment, visit

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What are the carbon emissions associated with my trip?

Calculate the estimated cost to offset the CO2 emissions associated with your trip by itinerary confirmation number or by origin and destination. Then, make a financial contribution directly to The Nature Conservancy or donate miles via the links below.

"Upstream emissions,” or the additional impact associated with petroleum extraction, refining, and transportation are estimated to add an additional 19 percent to the value shown in the table above.

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Make a Financial Contribution to The Nature Conservancy®opens in a new window

Purchasing a voluntary carbon offset compensates for the CO2 emissions from your travel by removing or preventing the release of an equivalent amount of CO2 into the atmosphere. Make a voluntary contribution to fund a project of your choice.

Offset Nowopens in a new window

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Donate Miles to The Nature Conservancy®

The Nature Conservancy is a leading conservation organization working around the world to protect ecologically important lands and waters for nature and people. The mission of The Nature Conservancy is to conserve the lands and waters on which all life depends.

Donate Now


What Does It Mean?

Fall trees

The average tree conserved through the Nature Conservancy’s Carbon Offset Program will sequester up to 7.5 metric tons of CO2 over its lifetime.  By comparison, a roundtrip flight from New York to London will emit about 1 metric ton of CO2 per passenger.


Where does my money go?

Rio Bravo Climate Action Projectopens in a new window

This 15,558 acre conservation project, located in northwest Belize, reduces carbon dioxide emissions through the protection of forest lands threatened by conversion to agriculture. The project provides important habitat for 200 species of trees, 400 species of birds, 70 species of mammals and 39 species of concern including the jaguar, puma, margay, ocelot, and howler and spider monkeys.

Clinch Valley Conservation Forestry Programopens in a new window

This program protects and manages 22,000 acres of working forestlands in southwestern Virginiaopens in a new window, which support important wildlife species like black bear, provide clean water for people and globally rare aquatic species, and sustain local timber jobs and economies.

The Valdivian Coastal Reserveopens in a new window

Owned and managed by The Nature Conservancy, the Valdivian Coastal Reserve is a 125,000-acre protected area located on Chile’s southern coastline. In 2003, TNC purchased this temperate rainforest property, halting the threat of deforestation from construction of coastal highways as well as conversion of native forest to exotic plantations. This prevented more than 350,000 tons of CO2 emissions from entering the atmosphere. The Reserve is home to biological treasures such as Olivillo and Alerce trees, whose lifespan stretches between 400-3,000 years, as well one of the world’s smallest deer called the Pudú.

Rio Bravo Climate Project