Research by TUC found that the proportion of workers travelling two hours or more to and from work on a daily basis has risen from one in nine, to one in seven.
The number of employees with daily commutes to and from work of two hours or more has jumped by almost a third over the past five years, said the unions organisation said.
Workers in Northern Ireland have experienced the biggest rise in commuting times, followed by those in the South East and East of England.
TUC general secretary Frances O'Grady said employers should offer more flexible working hours to cut down on their employees’ journey time.
Ms O’Grady said: "None of us like spending ages getting to and from work. Long commutes eat into our family time and can be bad for our working lives too.
"Employers cannot turn a blind eye to this problem. More home and flexible-working would allow people to cut their commutes and save money.”
Ministers are also being urged to do their part by investing more in the country’s transport network.
Ms O’Grady said: "But if we are to reduce the pain of traffic jams and train delays, ministers need to invest more in public transport and our roads. Next week's Autumn Statement is the perfect opportunity to do this."
Phil Flaton, of campaign group Work Wise, said a 9 to 5 culture is generating congestion on railways, underground and road networks and increases stress for commuters.
He said: "Clearly the Government, public transport providers and employers must do more in order to address the major negative impact on the UK's economy and lost productivity."
And if a two-hour commute wasn’t bad enough, it was revealed earlier this year that commuting adds more than 700 calories to our diet.
A poll by the Royal Society for Public Health (RSPH) found that commuting makes people want to snack more, either out of boredom or because they have a particularly stressful journey.
According to the survey, the most popular item people eat during their commute is a chocolate bar, followed by crisps, fizzy drinks and muffins.