Strikes planned for the Overground on March 4 and 5 next week have been called off.
RMT members with Arriva Rail London, which operates the Overground, had planned a walk-out over pay conditions.
However, it was suspended on Thursday, meaning planned disruption to key routes on the Overground will now not go ahead.
TfL said in a message to customers that normal services will now run.
The strike had been the second of two 48-hour walk-outs called the RMT in its dispute over pay.
An earlier strike, which had been due to take place on February 19 and 20 was also suspended for further talks.
