Shannon (SNN) → London (LHR)
Shannon Airport → London Heathrow Airport
Departure times are local to airport SNN.
Shannon (SNN) — London (LHR): how long is the flight?
SNN — LHR: scheduled duration in the saved data is 1 hr 25 min, the median of available flights.
SNN — LHR: what is the distance?
The straight-line distance between airports SNN and LHR is about 594 km, not the actual flight path.
Airlines on this route
The saved board for SNN — LHR lists these airlines: Aer Lingus.