A 40% transfer bonus from Citi ThankYou points to Turkish Airlines Miles&Smiles is live for November 2026, and it could shave a serious chunk off a business class redemption to Istanbul. But the fine print matters here more than usual.
The deal runs from 1 to 30 November 2026. Points normally move across at 1:1, so during the promo you'll get 1,400 Turkish miles for every 1,000 Citi points transferred. Two quirks to know upfront: the promotion comes from Turkish Airlines rather than Citi, so it won't appear anywhere on Citi's site, and there's no registration required. Bonus miles are capped at 50,000 per member.
The bigger gotcha is timing. Bonus miles only post after the campaign ends, so you can't transfer today and immediately book using the full boosted balance. If you're eyeing a specific award seat, that delay could be the difference between locking it in and watching it disappear.
Is it actually worth doing? Turkish Miles&Smiles was once one of the most generous programs out there, but devaluations have trimmed the magic. These days the real sweet spot is flying Turkish Airlines itself, to or from Istanbul, because awards on Turkish metal are priced per segment. A one-way business class award between the US and Istanbul costs 65,000 miles — with the 40% boost, that works out to roughly 47,000 Citi points. That's a genuinely good rate for a long-haul business seat, and Turkish's onboard product and Istanbul lounge are among the better reasons to fly the airline in the first place.
If you go for it, keep two rules in mind. Miles&Smiles miles expire at the end of the third year after they're earned, no matter what you do with your account in the meantime — there's no keeping them alive with activity. And the program has its own quirks around segment-based pricing and award availability, so have a concrete redemption plan before you move points. Transferring speculatively is a good way to end up stuck with miles you can't use well.
For anyone already holding Citi ThankYou points (earned via cards like the Citi Strata Premier or Strata Elite, which pool points easily), this is a straightforward way to stretch them further for a Turkish Airlines booking. If your plans involve other Star Alliance carriers or different regions, this bonus probably isn't the play — the value is concentrated squarely on Istanbul routes. Mark the November window, decide on your target flights early, and remember the bonus lands only in December.
