FlyerTalk Evangelist and Ambassador: The British Airways Club
Join Date: Jun 2008
Location: Somewhere between 0 and 13,000 metres high
Programs: AF/KL Life Plat, BA GGL+GfL, ALL Diam, Hilton Diam, Marriott Gold, blablablah, etc
Posts: 33,204
Well, one would need to look at your full fare rules, but frankly, O is the cheapest bucket in economy and I have personally never seen an O fare that is refundable. Therefore, should you cancel, it is most likely that you would barely get taxes back minus and admin fee and it is therefore most unlikely that you would save money.
The exception is of course if you booked less than 24 hours ago directly from BA as they offer a cooling period.