Most likely so. The BA MCT-LHR flight does not operate on Tuesdays and Wednesdays, and I believe has never done so or not for some time. I encountered the same trouble when the same deal was on last year - was really hard to find a set of dates to minimise transit time yet leave enough time between separate tickets.
A typo on FT is understandable, but I'm confused about how the OP could make this mistake when searching, as no booking engine would permit a return flight before an outbound...
Still available in Y for £424 if you return on 3 May (30 April too, if arrival time in MCT permits). Oman is worth a visit and the only reason I didn't enter when I did this deal was because I already planned to go to Oman again with my wife.
In the future, since BA flights are refundable within 24 hours of booking, always book the BA flight first (unless using an OTA)!
Morning all! So it appears I may have been a bit (ahem) 'tired and emotional' when I booked this and posted here last night.
I did in fact mean 1/5 (tipsy typo) and yes you are right that there is never a BA flight on Tuesday or Wednesday. Truth is that I spent ages faffing with the dates on the AMEX travel website trying to get both longhauls on the A380, midnight was fast approaching and I wanted to book before midnight to trigger my £200 off £600 AMEX travel offer. As a result I ended up panic booking at 23.49 and failed to realise that the return flight arrives in MCT on Monday after the BA flight will have already departed. Never mind, I might take this as an opportunity to visit Muscat or I might rebook since the change fee is a fairly reasonable $110 + fare difference.
And of course if I'd done this properly I would have booked the LHR-MCT-LHR on BA before booking the MCT-DOH-BKK-DOH-MCT but time constraints meant I couldn't.
I'm also still waiting for a AMEX MR-> Avios transfer to complete so I can part pay with Avios although if I'd thought about this properly I should have booked cash then cancelled and rebooked if the Avios arrived in time.
I guess I'll have to chalk this one down to experience and learn from it...