Bank of America's co-branded Flying Blue Visa Signature has quietly become one of the more interesting airline cards for anyone who flies transatlantic business class on points. The pitch is simple: an $89 annual fee, a solid welcome offer, and — unusually for an airline card — the ability to earn the XP points that unlock elite status in Air France-KLM's Flying Blue program.

The welcome bonus currently sits at 70,000 Flying Blue miles plus 100 XP after spending $3,000 in the first 90 days. That's a limited-time offer; the reviewer values Flying Blue miles at around 1.3 cents each, putting the miles alone at roughly $910, before counting the XP, which is enough on its own for Silver status.

Where the card gets strategic is the status maths. Cardholders get 20 XP each year just for holding the card, another 80 XP for spending $15,000 in an anniversary year, and a further 60 XP at $25,000 — a maximum of 160 XP annually from the card alone. Add the 100 XP from the welcome bonus and a meaningful chunk of Flying Blue Gold or even Platinum status can be manufactured through spending, without setting foot on a plane.

Why bother? Flying Blue Platinum members see significantly more award space, and one-way transatlantic business class awards start at 60,000 miles — a rarity when long-haul premium award availability has become so scarce. Platinum also unlocks the ability to book flexible 'Light' fares with lounge access and seat selection, SkyTeam Elite Plus benefits across partner airlines, and access to Air France's La Première first class awards (though those run a steep 350,000 miles one-way). Families get a 25% discount on awards for kids aged 11 and under.

On earning, the card pays 3x miles on Air France, KLM and SkyTeam spending, 3x on dining worldwide, and 1.5x on everything else, with no foreign transaction fees. There's also a 5,000-mile anniversary bonus for spending just $50 a year — an easy offset against the fee — and authorised users cost nothing. The main caveat: you're earning a single airline currency rather than flexible points, and Flying Blue does levy carrier-imposed surcharges on many awards. The reviewer's workaround is to top up with transfers from major points programs, especially during transfer bonuses.

Eligibility is worth noting before applying: one welcome bonus per card account, and only one new-account XP bonus per Flying Blue member every 24 months. Bank of America also applies its 2/3/4 rule (limits on how many of its cards you can open) and a 3/12 rule counting new cards across all issuers, though the latter often doesn't apply to existing BofA banking customers.

This is a niche play, not an everyday spend card. But for travellers who specifically want Flying Blue status to unlock transatlantic business class seats, the low fee and the XP earning make it a genuinely useful tool. Full details are in the original review from One Mile at a Time.