How are other airports and airlines helping after Heathrow closure?
Some airlines are running additional flights from other London hubs, or using larger aircraft.
Airports and airlines across the UK and Ireland have come to the aid of Heathrow following its closure on Friday.
Online flight tracking service Flightradar24 said more than 1,300 flights were disrupted by the closure, with 120 flights to the airport in the air when the closure was announced.
British Airways advised customers not to travel to Heathrow on Friday “until further notice” as it had cancelled all short-haul flights serving the airport.
It said in a statement: “This will clearly have a significant impact on our operation and our customers and we’re working as quickly as possible to update them on their travel options for the next 24 hours and beyond.”
Passengers booked to fly to or from Heathrow with British Airways on Saturday or Sunday are being given the option to rebook to a later date for free.
The airline said it has “provided ground transport options where possible” for passengers on flights diverted to other UK airports.
Ryanair said it is organising eight “rescue flights” between London Stansted and Ireland for passengers affected by the closure.
The airline said in a statement: “Ryanair will operate four extra flights between Dublin and Stansted on Friday afternoon as well as four extra flights on Saturday morning.
“These flights can be booked on http://Ryanair.com from 9.30am this morning.”
The cheapest one-way ticket from Stansted to Dublin on Friday and Saturday is priced at £132.99 on the Ryanair website.
In contrast, the cheapest ticket for the same route with the airline the following Saturday (March 29) is priced at £14.99.
All flights between Dublin Airport and Heathrow on Friday have been cancelled.
Graeme McQueen, media relations manager at Dublin Airport Authority, said: “All flights scheduled between Dublin Airport and London Heathrow today have been cancelled following the closure of London Heathrow Airport due to a power outage.
“A total of 34 flights were scheduled between Dublin Airport and Heathrow today – 17 inbound and 17 outbound.
“Further disruption to flights between Dublin Airport and Heathrow over the coming days is possible.
“Passengers looking for updates regarding specific flights or to rebook or change flight are advised to contact their airline directly by phone or online.”
Seven flights diverted from Heathrow will land at London Gatwick on Friday, the airport confirmed.
A London Gatwick spokesperson said: “We are aware of the situation at Heathrow Airport today and we are supporting by accepting diverted flights as required.”
Birmingham Airport said it will receive any diverted flights from Heathrow and help to transport any stranded customers.
A spokesperson said: “There will be no delays to Birmingham Airport’s own customers due to any diverted Heathrow aircraft. Airports regularly take diverts as part of normal operations and flights inbound to London Heathrow will use multiple airports around the UK, and Ireland, or alternatively may return to their departure airport.
“We will assist with landing any diverted aircraft during the Heathrow closure today and work with those LHR airlines to repatriate their customers upon arrival into Birmingham.”
Shannon Airport in Co Clare, Ireland, said at least six flights diverted from Heathrow would land at its airport on Friday.
A spokesperson for Shannon Airport Group said: “We are closely monitoring the situation at Heathrow Airport and are providing support by accommodating diverted flights as needed and our team is on-site to assist with the additional passengers.
“So far, Shannon Airport has facilitated six diverted flights originally scheduled to land at Heathrow, including flights from Toronto, Atlanta, Bridgetown Barbados, Boston, Orlando and Newark.
“The first of these flights landed safely at 4.26am this morning.”
In an update, the airport said all passengers from the six diverted flights had been taken to hotels by bus.
Manchester Airport said all flights to Heathrow had been cancelled on Friday but it had accepted “a small number of diversions” from the airport.
EasyJet, which does not operate at Heathrow, said it will use larger than planned aircraft on key routes on Friday and over the weekend to accommodate disrupted passengers.
Several flights between the UK and Milan, Amsterdam, Paris, Munich and Madrid will have A320 aircraft with capacity for 186 passengers, instead of A319 aircraft which can only carry 156 passengers.
London Stansted said the airport had capacity for “a small number of diverts” from Heathrow, but has not yet received any requests.
Other major European airports have also received multiple flights diverted from Heathrow on Friday.
Amsterdam’s Schipol airport in The Netherlands has so far seen seven flights arrive that were originally bound for west London, while Paris’s Charles de Gaulle, Madrid’s Barajas and Frankfurt airport in Germany have all accommodated six flights each, according to data published by Flightradar24.
