Originally Posted by
klanfa
Had a schedule change of ~75 min for a SFO-LAS flight. Originally booked in basic economy via an OTA due to a special discount, but I have the option to make changes myself on united.com. Also seeing option to change to a "United Economy" fare free of charge. Would that "upgrade" me to regular economy for free, allowing further changes free of charge if need be?
The ability to change/refund etc. will always be the based on the original fare. That said, UA often allows multiple changes in such situations.
The change may show but not go through (claiming you must contact the OTA), YMMV.