Uber users tweeted their anger at the online taxi company, expressing outrage as taxi fares rose by up to 300 percent at a time when thousands of Londoners were struggling to get to work… In response to the surge in demand, Uber raised its minimum fare to £14.50 (US$22.30) with an additional fee of £3.62 per mile. If the cab is stuck in traffic, passengers must pay an extra 43p per minute.