In the case of Hilton, that can be worth from 24% to 38% back in loyalty points per dollar spent.
When Hilton isn’t running a special, I get 34 points per dollar at around .7 cents per point:
- 10x base points
- 10x Diamond bonus (automatic for having the Amex Hilton Aspire)
- 14x Amex Hilton Aspire card
But Hilton ran a 3x special May through September (54x total) and now they are running a 2x special (44x) through March 2023.
The other advantage from booking directly is that it’s easier to change or modify a booking.
> There's no particular disadvantage to me booking Marriott through Amex
There is a big difference between booking through Concur and booking through the Amex portal.
Your company pays the booking fee instead of the hotel. On that case, you’re probably directly charged by the hotel and Egencia charges the company/end user the fee.
But you're right. There's no particular disadvantage to me booking Marriott through Amex than directly other than an (expensed) booking fee for work travel.