I think this might have been covered elsewhere but hard to find. I live in London but will be in Madrid and am planning to fly to the States on Iberia from there. On the way back however, I'll get an indirect flight operated by British Airways and jump off at Heathrow (no checked-in baggage) thus missing the final flight (London-Madrid). Does this create any issues with repricing of tickets? Cancellation obviously not a worry given it's the return leg.