At Southwest Airlines®, we take pride in being the airline with Heart and that includes respecting our Planet. Our goal is to achieve net zero carbon emissions by 2050, which will require a strategic mix of advanced long-term planning and near-term action. We are working to make progress across our four strategic pillars to help us achieve our near and long-term sustainability goals and beyond.

Environmental Sustainability Goals

Our Environmental Sustainability Goals:

  • Net zero carbon emissions by 2050
  • Reduce carbon emissions intensity 25% by 2030 and 50% by 2035 as compared with 20191
  • Replace 10% of our total jet fuel consumption with sustainable aviation fuel (SAF) by 2030

For additional details on our environmental sustainability goals and initiatives, including our efforts across our four pillar strategy, please see the latest One Report.

1Per revenue ton kilometer basis (including Scope 1, Scope 2, and Scope 3 Category 3 emissions (upstream emissions of jet fuel)); includes the use of SAF and excludes the use of carbon offsets.

Environmental Sustainability Plan

Environmental sustainability is an important part of our present and future, which is why we have set long-term and near-term goals, as well as a four-pillar strategy to Reduce, Replace, Offset, and Partner. Although challenges lie ahead, our efforts across our four-pillar strategy demonstrate our intent to overcome them.


Our plan includes reducing our carbon emissions intensity by 25% by 2030 and 50% by 2035 as compared with 20191. We’re focusing on a number of initiatives, both in the air and on the ground, to help get us there.

How we plan to continue to reduce:

  • Modernizing our fleet by adding the more fuel-efficient Boeing 737-7 and 737-8 aircraft and accelerating 737-700 retirements.2 The 737-7 and 737-8, powered by CFM International LEAP-1B engines, include design updates which result in less drag and further optimize performance, especially on longer-range flights. According to Boeing, the 737-7 and 737-8 have a 14% lower rate of fuel burn than the previous generation of 737 aircraft.3
  • Operating optimized routes through our vertical and lateral flight planning algorithms and providing our Flight Crews with more accurate and up-to-date wind data linked to the aircraft to take advantage of additional technological opportunities and leverage real-time wind profiles to reduce fuel burn. We also participate in Required Navigation Performance operations as part of the Federal Aviation Administration’s Performance Based Navigation program, a key component of the Next Generation Transportation System, intended to modernize the U.S. air traffic system by addressing limitations on air transportation capacity and making more efficient use of airspace.
  • Carrying out fuel-saving programs and policies, including performing single engine taxiing when possible, to conserve fuel, reducing the use of the auxiliary power unit and instead using electric ground power, and reducing the overall weight of onboard interiors and assets.
  • Improving our operations by investing in new technologies such as our Central Monitoring System, which allows us to monitor systems and equipment such as baggage handling systems, glycol (deicing) equipment, Passenger boarding bridges, as well as resources like ground power and preconditioned air, in real-time.
  • Electrifying our ground services equipment that are eligible for electrification, including baggage-tugs, belt-loaders, pushbacks, and power stows.
  • Purchasing Renewable Energy Certificates (RECs) certified by an industry-recognized third party to target our Scope 2 electricity emissions. In 2022, we matched 100% of our electricity consumption at our Texas operations with RECs, while working to develop a comprehensive, longer-term renewable energy strategy for our corporate facilities.
2Southwest has capital commitments associated with our firm orders with Boeing for additional aircraft. Please refer to the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2022, and any additional filings with the SEC for information about the Company’s capital commitments and risks.
3The 737-8 is approximately 14% more fuel-efficient than the 737-800. The 737-7 is expected to produce comparable fuel efficiency improvement compared with the 737-700.


Our environmental sustainability plan includes replacing 10% of our total jet fuel consumption with SAF by 2030. We are collaborating with different producers and partners across the value chain to make progress.

What are sustainable aviation fuels?

SAF is fuel produced from non-fossil fuel sources that can result in lower greenhouse gas (GHG) emissions than conventional jet fuel on a lifecycle basis. SAF is a drop-in fuel when blended with conventional jet fuel and is crucial to decarbonizing aviation.

Learn more about SAF

Our SAF partners

In 2021, the total amount of SAF produced in the world amounted to less than 0.1% of global jet fuel consumption.4 As a member of Airlines for America, we support its goal to work with government leaders and other stakeholders to make three billion gallons of cost competitive SAF available to U.S. aircraft operators by 2030. In support of these goals, we have entered into offtake agreements with Velocys and Neste and Memoranda of Understanding with Marathon Petroleum Corporation and Phillips 66. We are also partnering with researchers like the National Renewable Energy Laboratory (NREL), coalitions like the Commercial Aviation Alternative Fuels Initiative and the World Economic Forum’s Clean Skies for Tomorrow initiative, corporate Customers, policymakers, and other stakeholders to help develop this nascent market.


As announced in June 2022, we are also demonstrating our support of SAF by investing in SAFFiRE Renewables, LLC (SAFFiRE), a company formed by D3MAX, LLC, as part of a Department of Energy funded pilot project supporting the development and production of scalable SAF. SAFFiRE is expected to utilize technology developed by NREL to convert corn stover, a widely available waste feedstock in the U.S., into renewable ethanol that would then be upgraded into SAF.

According to NREL, this could produce significant quantities of cost-competitive SAF that could provide an 84% reduction in carbon intensity compared to conventional jet fuel on a lifecycle basis. For Southwest®, this was a first-of-its kind investment into what we believe could be potentially game-changing technology that could help us reach our environmental sustainability goals.



Certified carbon offsets continue to be a part of our multi-pronged environmental sustainability strategy.5 While we recognize that offsets have an important role to play for our Planet, we don’t plan to use carbon offsets toward our voluntary near-term emissions intensity reduction targets and net zero goal. Future requirements to use offsets for our international flying as part of CORSIA or from other regulatory measures may arise.6 In addition, we may complement other environmental initiatives with offset projects.

What are carbon offsets?

Carbon offsets are tradeable rights generated from projects that reduce, capture, or avoid a certain amount of carbon emissions, and those rights can be purchased from those projects to offset an equal amount of carbon emissions from activities like flying.

Learn more about carbon offsets and the projects we support

We are proud to partner with CHOOOSE™ to offer our Customers the opportunity to offset their carbon emissions by providing the first U.S.-based airline offset offer with loyalty points and matching contribution.7

5Certified offsets are defined as credits that have undergone independent third-party verification by an accredited verification body to have followed the methodologies and protocols of the applicable program in the development and execution of project activities.

6Detailed risk factors, including those specific to climate change, are discussed under the heading “Risk Factors” in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

7Carbon emissions for flight activity are estimated using several factors such as: aircraft type, conventional jet fuel consumption, flight distance, and assumed load factor. Emission estimates are based on the fleet wide distance-weighted average performance of Southwest’s flights from the Second Quarter of 2022. Southwest’s emissions estimates do not quantify the potential climate change impact of non-carbon emissions resulting from a flight or non-flight factors, such as the production or transportation of conventional jet fuel to the aircraft prior to takeoff. Actual carbon emissions may vary from estimates. Taxes and fees (except for the processing fee) will not be matched by Southwest or earn points. Rapid Rewards® Members can earn 10 Rapid Rewards bonus points per dollar spent on offsets up to a maximum of 500 Rapid Rewards bonus points per month. Points will only be awarded to the Member’s Rapid Rewards account number entered at the time of the carbon offset transaction. Southwest’s matching contribution will be used to purchase additional offsets to support global projects, and such additional offsets will be retired for Southwest. Terms and conditions apply.


We partner with different organizations and nonprofits whose work complements our efforts to achieve our goals and advance environmental sustainability.

Learn more about our sustainability partners

Partnerships play a crucial role in our sustainability efforts. We are deepening partnerships within and outside of our industry whose work complements our efforts to advance environmental sustainability. Below are a few examples of our partnerships.

  • Yale University's Center for Natural Carbon Capture. We’ve made a $10 million commitment to Yale University's Center for Natural Carbon Capture and Yale’s School of the Environment to fund research surrounding innovative natural solutions to mitigate net greenhouse gas emissions.
  • Airlines for America. As a member of Airlines for America, we support its goal to work with government leaders and other stakeholders to make three billion gallons of cost competitive SAF available to U.S. aircraft operators by 2030.
  • Aviation Climate Taskforce (ACT). We’re a founding member of the ACT, a nonprofit with a goal of accelerating breakthroughs in emerging technologies required to decarbonize the aviation sector such as synthetic fuels and direct air capture.
  • Repurpose with Purpose. This global sustainability initiative upcycles items such as leather aircraft seat coverings and transforms them into new products. This supports communities by helping to provide employment, skills training, and donated products.

Environmental Sustainability News & Videos

Vision 2045

At Southwest we seek to show our Heart for the Planet by taking action towards sustainability, but we recognize we can’t do it alone. Respecting our Planet requires a joint effort from individuals, communities, businesses, and state and federal governments all working together. That’s why we are excited to join the Vision 2045 campaign—a collaboration among multiple organizations and companies whose purpose is to share films that aim to inspire businesses and people to act toward a more sustainable future.

Repurpose with Purpose

In celebration of our 50th anniversary in 2021, we donated 50,000 pounds of used aircraft leather seat coverings to the Metro Nashville Public School (MNPS) district to support the expansion of our Repurpose with Purpose program into the public education community—for the first time ever! See what these K-through-12 artisans did with their materials!

Check out all of our environmental sustainability news releases, media updates, and more.