At The American Express Platinum Card
International Airline Program - savings on First and Business Class fares — Eligibility: Bookings must be made through the American Express International Airline Program with participating airlines. — Discount amount not published on the card page.
Check the details on The American Express Platinum Card’s own page
Perkroo lists the perks the memberships you already hold include — sorted by what’s nearest to you.
Perkroo is an independent Australian app. The American Express Platinum Card are named for identification only — Perkroo is not affiliated with, endorsed by, or partnered with them. Offers change at the provider’s discretion; check the linked page before relying on one.