Item 2. PROPERTIES

Flight Equipment

We have restructured our aircraft order books for future aircraft deliveries and as of December 31, 2020 removed from active service approximately 350 mainline and regional aircraft to align capacity with customer demand as a result of the COVID-19 pandemic. As of December 31, 2020, approximately 125 mainline and regional aircraft were temporarily parked. Additionally, 227 aircraft were permanently parked as a result of the early retirements described in Note 2 of the Notes to the Consolidated Financial Statements.

As we obtain greater clarity around the duration and extent of reduced demand and potentially execute further capacity adjustments, we will continue to evaluate our current fleet compared to network requirements and may decide to retire additional aircraft. Future decisions regarding the timing of returning temporarily parked aircraft to service will be dependent on the evolution of the demand environment. See Note 2 of the Notes to the Consolidated Financial Statements for additional information on our fleet retirements.

Our operating aircraft fleet, commitments and options at December 31, 2020 are summarized in the following table:

(1)Excludes certain aircraft we own, lease or have committed to purchase (including one CRJ-900 aircraft) that are operated by regional carriers on our behalf shown in the table below.

(2)Purchase commitments include one A330-900neo lease commitment in 2021 incremental to our order book with Airbus.

We have assumed 10 of LATAM's A350 purchase commitments from Airbus, with deliveries through 2025, which are included as purchase commitments in the above table. See Note 5 of the Notes to the Consolidated Financial Statements for further information on our strategic alliance with LATAM.

Delta Air Lines, Inc. 2020 Form 10-K 25

Item 2. Properties

The following table summarizes the 340 aircraft operated by regional carriers on our behalf at December 31, 2020. We have also temporarily parked approximately 35 regional aircraft as of December 31, 2020.

In 2020, Compass Airlines, Inc. ("Compass") and GoJet Airlines, LLC ("GoJet") ceased operations on our behalf. Aircraft previously operated by Compass and GoJet are now being operated by our other regional carriers and are reflected in the table below.

(1)Endeavor Air, Inc. is a wholly owned subsidiary of Delta.

Aircraft Purchase Commitments

As part of a multi-year effort, we have been investing in new aircraft to provide an improved customer experience, greater fuel efficiency, better operating economics and more premium products. In 2020, we restructured our aircraft order books with Airbus and MHI RJ Aviation Group (manufacturer of CRJ aircraft) in an effort to better match the timing of aircraft deliveries with our network and financial needs over the next several years. The restructuring reduced our aircraft purchase commitments by more than $2 billion in 2020 and by more than $5 billion through 2022. The shift in delivery timing is intended to allow us to continue simplifying and modernizing our fleet while maintaining our Airbus order book.

Our purchase commitments for additional aircraft at December 31, 2020 are detailed in the following table:

(1) Includes one A330-900neo lease commitment in 2021 incremental to our order book with Airbus.

Delta Air Lines, Inc. 2020 Form 10-K 26

Item 2. Properties

Ground Facilities

Airline Operations

We lease most of the land and buildings that we occupy. Our largest aircraft maintenance base, various equipment maintenance, cargo, flight kitchen and training facilities and most of our principal offices are located at or near the Atlanta airport on land leased from the City of Atlanta. We lease ticket counters, gate areas, operating facilities and other terminal space in most of the airports that we serve. At most airports, we have entered into use agreements which provide for the non-exclusive use of runways, taxiways and other improvements and facilities; landing fees under these agreements normally are based on the number of landings and weight of aircraft. These leases and use agreements generally run for periods of less than one year to 30 years or more, and often contain provisions for periodic adjustments of lease rates, landing fees and other charges applicable under that type of agreement. We also lease aircraft maintenance, equipment maintenance and air cargo facilities at several airports. Our facility leases generally require us to pay the cost of providing, operating and maintaining such facilities, including, in some cases, amounts necessary to pay debt service on special facility bonds issued to finance their construction. We also lease computer facilities, marketing offices, reservations offices and other off-airport facilities in certain locations for varying terms.

We own our Atlanta reservations center, other real property in Atlanta and reservations centers in Minot, North Dakota and Chisholm, Minnesota.

Refinery Operations

Our wholly owned subsidiaries, Monroe and MIPC, own and operate the Trainer refinery and related assets in Pennsylvania. The facility includes pipelines and terminal assets that allow the refinery to supply jet fuel to our airline operations throughout the Northeastern U.S., including our New York hubs at LaGuardia and JFK.