Now, the Department of Homeland Security has lifted the ban, noting that it is now confident with the "enhanced security measures in place" at the previously affected airports.
As of Thursday, all 180 USA and foreign airlines and 280 foreign airports have met the "first phase" of the expanded security rules, the department said.
In fact, he says, homeland security experts here built their own device with explosives hidden inside.
On Wednesday, DHS Secretary John Kelly said that officials had tested a laptop bomb on a real airplane and that the result was that "it destroyed the plane".
But this isn't the end for scrutiny of devices on airplanes.
Passengers should be prepared to arrive even earlier to the airport than usual for worldwide flights inbound to the US - at least three hours in advance. Officials said the measures were aimed at ending a limited in-cabin ban on laptops that had targeted nine airlines, and preventing an expansion of that ban to additional airports in Europe and elsewhere. The requirements affect 2,000 commercial flights a day from 280 airports.
"The quick and decisive action taken by airlines, nations, and stakeholders are a testament to our shared commitment to raising the bar on global aviation security", Homeland Security spokesman David Lapan said Thursday.
A few of the airlines took the ban in stride, sharing ways to get around the ban as well as jokes meant to lighten the mood for irritated travelers. But Patricia Rojas-Ungar is with the U.S. Travel Association. So it's not going to stop.