In flight planning, what is the primary purpose of listing an alternate airport?

• A. To provide a backup destination if the primary is unavailable.
• B. To avoid delays always
• C. To practice landings
• D. To refuel only if necessary

Answer: (A)

The main idea is to have a safety backup. Listing an alternate airport in your flight plan provides a guaranteed landing option if the primary destination becomes unusable—due to weather, runway closures, or other issues—so you’re not left with nowhere to land. This backup must be reachable with the planned fuel and reserves and must offer acceptable approaches and conditions, making it a practical option for a safe diversion.

That’s why this choice is the best: it directly addresses safety and contingency planning. The other options don’t fit the purpose—listing an alternate isn’t about avoiding delays every time, practicing landings, or refueling only if necessary. It’s about having a viable fallback point where the flight can safely complete if the original destination can’t be used.