She will transit within T5 in LHR.I was planning to fly with her until LHR. Ie from Dub to LHR and back to Dublin on later BA flight. As per LHR transit details page, my mom will get out of her Dub-LHR flight, go through security and goto her LHR-BLR gate. (no transit immigration to but only security check)Does anyone know if Dublin gates are in different area from long haul BLR gates?Can I go with her and remain with her at the BLR gates and then go back to my Dublin gate?