Help with best way to use points and voucher

[MAN]

I have 400,000 points a companion voucher and an upgrade voucher.

I want to fly LON to MLE around 21st Aug and return 31st Aug. There are three adults and we want to fly business class.

There are no return options with vouchers, but I can book outbound for 200,000 + companion voucher.

However the return leg, I seem to have to book one way, which is almost as much as a return ticket, making the companion voucher and use of points nullified. I also can’t use the upgrade voucher on the return if I book a single because upgrade vouchers must start in the UK.

I actually have two upgrade vouchers available.

Has anyone thoughts on how I can get best value for this situation.

Many thanks

[NorthernLass]

You’ve left it very late to book a popular route like MLE at peak time, I’m quite surprised you’ve found 3 x business on the outbound.
As you’ve seen, one-way long haul flights are often disproportionately expensive and would pretty much wipe out the saving you get from using avios on the other leg.

One option is to look at connecting to DOH or DXB and using the return portions of your vouchers to return from one of those, where you’re likely to find more availability. You can keep checking for late award seat release (unlikely) and cancellations (slightly more likely); if these appear you can change your booking for £35 pp.

You’ll need to call BA to book an open jaw routing with your vouchers.