Engineering work is taking place between London Paddington and Heathrow / Reading, closing some lines overnight from Monday evening until Friday morning.
Between 22:00 and 05:00 each night:
Services between Abbey Wood and Heathrow Terminal 4 will run to reduced frequency of 2 trains per hour.
Services between Abbey Wood and Maidenhead will run between Abbey Wood and Paddington (Elizabeth line) only.
Ealing Broadway, Southall and Hayes & Harlington will have a reduced service of 6 trains per hour.
Heathrow Terminals 2 & 3 will have a reduced service of 4 trains per hour.
West Drayton, Langley, Slough, Burnham, Maidenhead and Heathrow Terminal 4 will have a reduced service of 2 trains per hour.
Trains to / from Reading will now call at Iver.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner