London commuters who use Oyster cards are paying up to £91 more to travel each week than those who use contactless card payment, new research has revealed.
Transport for London (TfL) has introduced weekly caps on contactless cards, while only daily caps apply on Oyster.
Analysis by the London Assembly Labour party found passengers using pay-as-you-go fares, who travel between zones four and seven during peak-time seven days a week, would pay £121.40
However, passengers travelling through the same areas but using contactless payment would only spend £29.40 - a saving of up to £91.80. For those only commuting Monday to Friday, the saving on contactless would still be £68.60
This also means those travelling through zones one to four seven days a week would pay £68.40 - but contactless payment users would be charged just £45.
Meanwhile, a zone one to six commuter who hits the peak-time daily cap (five times) would save £21.80 per week by switching from Oyster to contactless card payment.
London Assembly Member Val Shawcross said the figures raise questions over Boris Johnson’s pledge that Oyster cards would also be the cheapest way of travelling in the capital.
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She said: "Boris Johnson has repeatedly said that Oyster would always be the cheapest way to travel but that simply isn't true.
"When Boris Johnson launched contactless he could have chosen to add weekly caps to the Oyster card.
"Instead he purposely chose to give contactless card users a better deal, despite almost half a million Londoners not having a bank account let alone a contactless card."
A recent survey for TfL found only 26 per cent of Londoners have made a payment using a contactless card. Tfl’s Director of Customer Experience, Shashi Verma, said it is looking at introducing weekly capping on Oyster "when the current technology can be updated".
This is a complex process, she explained, because it requires changes to the card readers, back office and to retailing systems.
Ms Verma said: “The same fares apply to both contactless and Oyster. Contactless provides the convenience of Monday to Sunday capping, giving customers the same fare as is available to Oyster customers who buy a weekly Travelcard or bus pass.
“If a customer uses contactless for a week within zones 4 to 7 they will get their fare capped at £29.40. If a customer buys a weekly Travelcard on their Oyster card for zones 4 to 7 they will also pay the same fare of £29.40."