Originally Posted by lixiaojuventus

Actually this might not be true in some cases. According to the IATA rule,


For example, if one flies EWR-(UA)-FRA-(LH)-PEK, where one crosses IATA borders twice, it is the first operator UA's baggage rule that will apply, even the distance from EWR to FRA (3869 miles) is shorter than that from FRA to PEK (4853 miles).