Buy a lounge pass online or at the airport
Use a premium credit card with lounge benefits
Fly business class or first class
Join an airline loyalty program with lounge privileges
Purchase an annual lounge membership
Use a lounge access program such as Priority Pass or DragonPass
Check if your ticket includes lounge access
Ask about paid entry at the lounge reception
Use elite status with an airline alliance
Access a partner airline lounge through codeshare or alliance benefits