On time
R I S, here's a snapshot, QR 42 paris/doha sta 1635 eta 1623 touchdown was 1623, give him 5 mins to stand and ata would be 1628.
QR 138 barcelona/doha sta 1635 eta 1628 touchdown 1628, 5 mins to stand so ata would be 1633.
Doha 2 hours ahead of uk.
QR 5 Doha/london std 1630 was airborne shortly after so was probably on time.
I think that services ( except those(cancelled) to/from the 6 states breaking off diplomatic relations) will be able to operate on schedule to and from Europe and beyond and to/from the east. Services to/from west and south of Qatar will naturally be affected by the longer time taken to avoid Saudi.
All above dependent on Bahrain continuing to handle all flights as they normally do between Doha and the Iranian ATC boundary down the middle of the Gulf. Could change. Got to hand it to QTR Flight ops, number crunching and re-routing what-ifs must be going on 24/7. Ditto Bahrain Atcc.