Ranked: London's worst Tube lines for delays
- District – 244 days with delays.
- Piccadilly – 202 days with delays.
- Circle – 176 days with delays.
- Central – 166 days with delays.
- Metropolitan – 143 days with delays.
- Bakerloo – 129 days with delays.
- Hammersmith & City – 125 days with delays.
- Victoria – 97 days with delays.
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