I can never get these to work. I was looking for depart any German airport in June, long stopover in London, then to Singapore for the F1, depart Lhr on or about 17th sept, back to Europe early morning of 22nd. Damned if I can get it to work!
Did find £1300 AB/EY fare though, which I didn't think was too bad..
*Never mind, just realised minimum stay. Doh!
**Nope, still can't do it. Poop.