Originally Posted by
irmster
I actually wanted to take away a flight on an award booking (ie turn an LAS-LAX-LHR flight into just an LAX-LHR one). Told me they couldn't do it without cancelling and rebooking - which would mean I'd probably lose the seat altogether.
I had originally booked EDI-LHR-BKK-FRA-EDI as a return trip with awards, and also SIN-BKK one way with awards. I successfully cancelled these to get one way tickets from EDI-LHR-BKK and SIN-BKK-FRA-EDI with a stopover in BKK in the second flight. I changed the date of the SIN-BKK leg, but the other flights were on the same planes in the same class and I reserved the same seats. I did pay two cancellation fees, but it was worth it.
I'm not promising it would work in the LAS-LAX-LHR case, but it worked for me.