March 21 (Reuters) - Britain's Heathrow Airport said on Friday that it had begun reopening after a massive fire at a nearby electrical substation knocked out power, forcing a shutdown at Europe's busiest airport and disrupting the flight schedules of airlines globally.

At least 120 inbound flights to Heathrow were diverted to other airports, according to flight-tracking website FlightRadar24.

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Here are the top 10 airlines by capacity whose aircraft were set to arrive at Heathrow Airport on Friday.

Here is what airlines are saying about the closure:

Source: Data from Cirium Ascend, company statements.

Note: The seats represent capacity, not ticketed passengers.

https://www.reuters.com/business/aerospace-defense/airlines-flying-into-heathrow-airport-friday-2025-03-21/