Flooding at Heathrow has blocked access by road to Terminals 2 and 3, the airport warned on Saturday.
In a statement, Heathrow urged travellers heading to the hub to use Heathrow Express, Elizabeth Line and Piccadilly Line trains where possible.
Alternatively, passengers arriving by car can use Park and Ride or head to Terminals 4 or 5 and take free rail services from there.
As disruption hits Europe’s second busiest airport, here is a list of all the airlines which use T2 and T3:
Heathrow T2 airlines
Also known as the Queen’s Terminal, T2 mainly serves Star Alliance member airlines.
These include:
* Aegean Airlines
* Air Canada
* Air China
* Air India
* All Nippon Airways (ANA)
* Asiana Airlines
* Avianca
* Brussels Airlines
* Croatia Airlines
* Egyptair
* Ethiopian Airlines
* EVA Air
* LOT Polish Airlines
* Lufthansa
* SAS Scandinavian Airlines
* Shenzhen Airlines
* Singapore Airlines
* SWISS International Air Lines
* TAP Air Portugal
* Thai Airways
* Turkish Airlines
* United Airlines
A number of non-Star Alliance airlines also use T2. These include:
* Aer Lingus
* Eurowings
* Icelandair
* JetBlue
* Loganair
* South African Airways
Heathrow T3 airlines
* Virgin Atlantic
* British Airways
* American Airlines
* Delta Air Lines
* Emirates
* Cathay Pacific
* Japan Airlines
* Qantas
* Finnair
* Aeromexico
* China Airlines
* Iberia
* LATAM
* Alaska Airlines