Originally Posted by
Chang Jim
Besides, if the journey contains different alliance in each leg, I suppose the mileage will be calculated separately by legs?
Welcome to FlyerTalk.
Different alliance, yes, but that would mean you have to dilute your earnings among more than one airline.
Same airline? Maybe.
Some airlines offer through flight with the same flight number and count as if you were flying nonstop. Even if the same flight number really entails connections with change of aircraft or even aircraft types.
If I recall correctly, for example, AA48 flew SFO-DFW-FRA; even though this invariably required aircraft changes at DFW, one received miles as if one flew SFO-FRA nonstop.
On the other hand, some of our members earn extra miles from things as simple as flying SFO-MIA-LHR instead of SFO-LHR or even SFO-JFK-LHR. And some get much more creative.