Engineering work is taking place between West Ruislip and Wembley Stadium, closing all lines.
Before 06:30 on Wednesday morning, no trains will run between West Ruislip and Wembley Stadium.
You can use your ticket on London Underground at no extra cost with:
Check before you travel:
You can plan your journey using the National Rail Journey Planner.
You can plan your journey on London Underground by using the Transport for London Journey Planner.