Originally Posted by
Jagboi
Similarly, I have done in J:
YYC-YYZ (AC) YYZ-LHR; LHR-LIN (BA) for ~$2100, while YYC-LHR was ~$6K.
It is very common pricing not only on AC nor on international routes. Hence there are the term of "throw away segment" come about. A lot of people especially travel domestically use the throw away which of course airlines flown upon you. So if one wants to take price differential advantage, dont use the FFP number. Else if do it frequent enough you would get in trouble with the airlines.