My coworkers do a lot of travel. A lot of travel. And I wanted to make sure they don’t get hosed on earning miles.

So I introduced my coworkers to wheretocredit.com and partner airline earning charts.

I showed my friends Tarun and James how to see what miles they might or might not earn, depending on what frequent flyer program they credit their flights to.

In one case, it stopped a co-worker from crediting his Cathay Pacific flights to American (where he’d get nothing) and instead credited to Alaska.

Moral of the story: where you credit your flights matters!