Air India have announced today a suspension of flights to BHX from both Amritstar & Delhi due to the restrictions over Pakistan airspace.This was causing longer flight routings and delays.Madrid services are also suspended.The final service to BHX will be Thursday 14th March 2019.

Info here :- https://twitter.com/airindiain/

Update:-31/03/2019

Air India in the last few days filed additional changes to its inventory for service to Birmingham  for summer 2019 season.

Delhi – Amritsar – Birmingham Reservation for 3 weekly service closed until 02JUL19
Delhi – Birmingham Reservation for 3 times weekly service resumed 31MAR19 to301APR19

AI113 DEL 12:30 – 18:30 bhx 788 137

AI114 BHX 20:45 – 10:30+1 DEL 788 137

Further changes remain likely.

link here:-https://www.routesonline.com/news