Booking.com Late Escape Deals (Get 15% OFF!)
Booking.com is launching a new promotion “Late Escape Deals” from October 1st until the end of the year, where you can get 15% off your accommodation when planning late escapes in 2022 up to January 3rd, 2023.
UPDATE
The Late Escape deals are not valid anymore. The most recent promotion is the Booking.com Early 2023 Deals. Check this post instead.
I got the email today and I was gladly surprised since I needed to book a long-term stay (3 weeks) down in Buenos Aires during October.
I did a quick search, and I saw many results already showing up with that 15% off rate:

Booking.com 15% discount
The promotional rates are 15% discount internationally (min), and 20% for bookings in Asia! Here’s what they write in their email:
Thereβs still plenty of travel left in 2022, and people are planning new holidays well into December. Booking.com launches Late Escape Deals as a new promotion where travelers can book Late Escape Deals from 1 October 2022 for stay dates up to 3 January 2023.
Enjoy and have fun booking your next trips! Comment down the places where you are considering going.