DELTA AIR LINES, INC.

Operating Margin, adjusted

Free Cash Flow. We present free cash flow because management believes this metric is helpful to investors to evaluate the company's ability to generate cash that is available for use for debt service or general corporate initiatives. Free cash flow is also used internally as a component of our incentive compensation programs. Free cash flow is defined as net cash from operating activities and net cash from investing activities, adjusted for (i) pension plan contributions, (ii) net cash flows related to certain airport construction projects and other, and (iii) strategic investments and related. These adjustments are made for the following reasons:

Pension plan contributions. Cash flows related to pension funding are included in our GAAP operating activities. We adjust to exclude these contributions to allow investors to understand the cash flows related to our core operations.

Net cash flows related to certain airport construction projects and other. Cash flows related to certain airport construction projects are included in our GAAP operating activities and capital expenditures. We have adjusted for these items, which were primarily funded by cash restricted for airport construction, to provide investors a better understanding of the company's free cash flow and capital expenditures that are core to our operations in the periods shown.

Strategic investments and related. Certain cash flows related to our investments in and related transactions with other airlines and associated companies are included in our GAAP investing activities. We adjust for this activity because it provides a more meaningful comparison to our airline industry peers.

Operating Cash Flow, adjusted. We present operating cash flow, adjusted because management believes adjusting for the following item provides a more meaningful measure for investors:

Net cash flows related to certain airport construction projects and other. Cash flows related to certain airport construction projects are included in our GAAP operating activities. We adjust for these items, which were primarily funded by cash restricted for airport construction, to provide investors a better understanding of the company's operating cash flow that is core to our operations in the periods shown.