Originally Posted by
zappy312
I hit a similar issue, wanted to swap AC YYZ-LGA for AC YYZ-JFK and was quoted 75k per person to do the change, even though it's only 25k for the segment alone. I've also got SQ on my ticket so yay for dynamic pricing.
JFK and LGA can be switched using a SDC at check-in. Obviously this requires space in J which is normally available on these short legs.