The Southeastern website confirms that Oyster will be accepted at Dartford from Sunday September 6th. It doesn’t list any fares, and customer services can’t confirm them either, but a little digging through the new fares database reveals that these are likely to be the adult fares:
Dartford in zone 8 from Sunday
TfL have now confirmed that Dartford will be in zone 8 from Sunday 6th September. The previously predicted fares have been confirmed apart from the through fare to Underground in zone 1 (the zone 2 fare was wrong but has been corrected). The PAYG fares offer considerable savings over paper tickets for a single fare … Read more