As of March 2014, Obama has spent more time traveling internationally than any other president, taking 31 trips since assuming office in 2009. The 119 days spent overseas have cost taxpayers millions of dollars.
At the same point in their respective presidencies, George W. Bush had spent 116 days on 28 trips, Bill Clinton had spent 113 days on 27 trips and Ronald Reagan had spent 73 days on just 14 trips.
The actual total cost may be higher, as the White House is not subject to the Freedom of Information Act.
Frequently missing from the data are the costs of housing the first family and staff, costs of prepositioning the Secret Service and their equipment, and other travel expenses such as meals and beverages.