Both Heathrow and Gatwick have disrupted rail travel this weekend-7
Gatwick- Both Gatwick Express and Southern have reduced service to London Victoria (Southern are every 30 minutes) with some trains diverted to London Bridge on Saturday.
On Sunday no southern or Gatwick Express will run to Victoria. Southern are diverting to London Bridge. Thameslink are running a normal service to London Bridge then across London. Gatwick Express is cancelled.
Heathrow- no service between Hammersmith and Heathrow/Uxbridge on the Piccadilly (and no shuttle service Heathrow to Acton Town)- use the Elizabeth Line to Central London.
Rail replacement buses will run-
PL1- every 10 minutes Hammersmith to Osterley all stations (every 20 minutes during Night Tube hours),
PL3- every 10 minutes- express (journey time 18 minutes) Heathrow Terminal 2 Stop 15 to Hammersmith Bus Station Stop J,
PL7- every 10 minutes- Heathrow Terminal 2 Stop 15 to Hammersmith, calling all stations to Osterley then express, journey time 1 hour (starts from Terminal 5, Stop 16b during Night Tube hours)
On Sunday the Elizabeth Line also has a reduced service of 4 trains per hour to Heathrow- 2 to Terminal 4, and 2 to Terminal 5.
The Terminal 5 trains run to Shenfield, the Terminal 4 trains to Abbey Wood.