What is the most frequently used discount fare for international travel?

• A. Discount Economy Fare DEF
• B. Economy Sale Fare ESF
• C. International Saver Fare ISF
• D. APEX Fare

Answer: (D)

APEX fare is the usual go-to discounted option on international travel because it represents the standard advance-purchase economy fare that most carriers offer across a wide network. It provides a meaningful savings over regular Economy and is widely available, making it the most commonly used choice by travelers and travel agents. It does come with typical restrictions—booking early, limited or nonrefundable changes, and fare-class rules—but those limitations apply consistently across many international routes, which is why it’s the default discounted option. Other fares like Discount Economy, Economy Sale, or International Saver exist but are more promotional or restricted to fewer dates or routes, so they aren’t used as broadly as the APEX fare.