
Just over 1.35 million travellers were checked in at American airports on Friday, the most since March 15 last year, according to Transportation Safety Administration figures.
Despite the recovery, the volume is still nearly half of what it would normally be this time of year.
The previous high since the onset of the coronavirus crisis was seen on Jan 3, with nearly 1.33 million passengers.
Air traffic had plunged to a record low 87,534 passengers on April 14.
The US has been battered by the world’s biggest reported outbreak of the virus, with some 534,000 deaths.
However, the country has administered over 100 million doses of the vaccine and new cases numbers have fallen from their highs over the holiday season.