Alternate airport

Definitions

• An airport designated in an IFR flight plan, providing a suitable destination if a landing at the intended airport becomes inadvisable.
• means an airport at which an aircraft may land if a landing at the intended airport becomes inadvisable

References

• 14 C.F.R. Part 1, Federal Aviation Administration, 2026
• Pilot's Handbook of Aeronautical Knowledge, Federal Aviation Administration, 2023