A low-key experiment is unfolding between two US airlines that, on paper, have nothing to do with each other. Alaska Airlines has started selling tickets on Breeze Airways through its own website and, more surprisingly, is awarding Atmos Rewards points for those bookings.

The arrangement sits on a standard interline agreement — the most basic form of airline cooperation — but it goes a step further than usual. Interline deals normally let carriers handle each other's tickets behind the scenes; they rarely involve one airline actively retailing another's flights to consumers, and almost never come with loyalty benefits. Here, Alaska is listing select Breeze nonstop routes directly on alaskaair.com and crediting Atmos points for them.

Don't get carried away, though. The coverage is tiny: only some Breeze flights to and from Charleston, Las Vegas and Raleigh-Durham, in markets where the two carriers don't compete. Breeze isn't reciprocating, so you can't book Alaska flights on Breeze's site, and there are no mixed itineraries combining the two airlines. On top of that, the fares Alaska displays don't map to Breeze's own fare bundles — you may see fewer options and not obviously better prices than booking Breeze directly.

So why bother? The cynic's answer is that Alaska barely will. The airline pulls in roughly $15 billion a year, and acting as a mini travel agency for a handful of Breeze routes will pocket it pocket change. The more interesting theory: Alaska has long plugged gaps in its network through partnerships, and this could be a small trial run for expanding domestic reach the same way — effectively renting out its website and loyalty program as a distribution channel. Breeze, meanwhile, gets free exposure to Alaska's customer base.

For travellers, the practical takeaway is narrow but real. If you're an Atmos Rewards member living near Charleston, Las Vegas or Raleigh-Durham, it's worth checking Alaska's site before booking Breeze, since you can pick up points on flights you'd be taking anyway. Just compare fares against Breeze's own website first, because the selection through Alaska is limited and the pricing isn't guaranteed to match. For everyone else, watch this space: if the trial works, Alaska's patchwork of partner airlines could quietly grow, and so could the places where your Atmos points actually come from.

It's an odd couple pairing — a legacy-leaning West Coast carrier and a young low-cost upstart — but it's exactly the kind of low-risk, low-cost gamble that fits Alaska's partnership-first playbook.

One Mile at a Time