Get 5X Points
Platinum Card® Members get 5X Membership Rewards® points on flights at amextravel.com. Terms apply.

https://travel.americanexpress.com/home
5X Points on Flights:
You will get one point for each dollar charged for an eligible purchase in each billing period on your Platinum Card® from American Express. You will get 4 additional points (for a total of 5 points) for airfare on a scheduled flight charged directly with passenger airlines or through American Express Travel (Platinum Travel Service or amextravel.com ). Charter flights, private jet flights, flights that are part of vacation packages, tours, or cruises, and flights booked with Platinum Travel Service on airlines that do not accept American Express are excluded. Eligible purchases are purchases for goods and services minus returns and other credits. Eligible purchases do NOT include ticketing service or other fees, interest charges, balance transfers, cash advances, purchases of travelers checks, purchases or reloading of prepaid cards, or purchases of other cash equivalents. Additional terms and restrictions apply. Merchants are assigned codes based on what they primarily sell. A purchase will not qualify for additional points if the merchant's code is not eligible. Purchases made through a third-party payment account or on an online marketplace (with multiple retailers) will not qualify for additional points. A purchase may not qualify for additional points if the merchant submits the purchase using a mobile or wireless card reader or if you use a mobile or digital wallet.