Find out how many miles you need to travel to Santiago
Overview
You'll need at least 40,000 to fly from London to Santiago in economy, and that's on an off-peak day. At peak times it will cost 45,000 Avios.
The Premium Economy cabin (World Traveller Plus)will require an extra 15,000 Avios. Points needed for Premium Economy range from 55,000 off peak to 80,000 on peak dates
You'll need between 110,000 (off peak) and 120,000 (peak) Avios to fly in Business Class. That's a minimum of 110,000 more Avios than Premium Economy.
First Class seats will cost you between 110,000 (off peak) and 120,000 (peak) Avios. One thing to note is that First Class tickets are the only ticket type with BA that allows you to select your seats for free.
Avios needed table
Cabin
Avios Needed (Off-Peak)
Avios Needed (Peak)
Economy
40,000
45,000
Premium Economy
55,000
80,000
Business
110,000
120,000
First
119,000
140,000
How to make your Avios go further
If you're based in the UK then there's a way to make your Avios go even further, and that's through a Companion Voucher. I've written extensively about these amazing vouchers. They're not free, but they're absolutely worth it. Read my guide on is a BA companion voucher worth it?
How can you search for reward seat availability?
BA offers a number of ways to search for reward seats: their "Reward Flight Finder", their in-app "Reward Flights" section and just making a dummy booking. There are also third party tools that you can use, although I've managed to find plenty of seats without having to pay for a platform. I wrote about the best (and worst) ways to search for Avios availability. If you're looking to book seats to a popular destination then planning ahead is critical: seats become available 355 days before the flight date.