Capital One is running a 20% transfer bonus to the British Airways Club programme for the whole of October 2026 — from the 1st to the 31st. The normal ratio between the two programmes is 1:1, so during the promo every 1,000 Capital One miles becomes 1,200 Avios. There's no cap on how many miles you can convert and no registration needed; the bonus posts automatically when you transfer, and the moves are usually instant.
This isn't a new trick — Capital One ran an identical 20% bonus to British Airways around the same time last year — but for this particular pairing, it's the best rate you'll get. Transfer bonuses to Avios pop up fairly regularly across various bank currencies, usually in the 20-40% range, so Capital One is at the conservative end even when it plays ball.
Why bother with Avios at all? The currency is more flexible than it looks. British Airways Club is one of five linked Avios programmes — alongside Aer Lingus AerClub, Finnair Plus, Iberia Club and Qatar Airways Privilege Club — and you can move Avios freely between them. That effectively turns a single transfer into five different redemption menus.
Some honest caveats from the source: the classic sweet spots for Avios, like short-haul redemptions on partners Alaska and American, have been badly devalued over the years. What's replaced them is arguably more interesting, though. Qatar Airways, which runs one of the world's best business class products, releases the bulk of its business class award space only to Avios redeemers — a genuine edge if you can find seats, which remains the tricky part.
For anyone sitting on a Capital One pile — from cards like the Venture X — this window is a reasonable moment to top up an Avios balance, whether that's for an Iberia off-peak Europe trip, a Finnair hop, or a shot at Qatar Qsuites. Just transfer only what you have a redemption in mind for, since Avios can't go back to Capital One.
