Flights at Britain’s Heathrow resumed late on Friday after a fire knocked out its power supply and shut Europe’s busiest airport for the day, stranding tens of thousands of passengers and ...

Heathrow Airport said it was "fully operational" on Saturday, after an almost daylong closure sparked by an electrical substation fire. But airlines warned that severe disruption will last for days.

London Heathrow Airport said it was “fully operational” on Saturday, after an almost daylong closure sparked by an electrical substation fire.