After 76 years in the air, US Airways will be making its swan song tonight with flight 1939 as its merger with American Airlines nears completion.

The *******, which started as a small airmail service and has since grown to include close to 200 destinations in 24 countries, will make its last ever departure under the US Airways name with a flight from San Francisco to Philadelphia. Shortly after the flight departs San Francisco at 9:55 p.m. PT, American Airlines will consolidate the reservations systems of both airlines.

American Airlines will commemorate the final flight with gate-side festivities at each stop (the flight will take a nostalgic route from Philadelphia to Charlotte, Phoenix, San Francisco then back to Pennsylvania).

USA TODAY reports that the ******* has had “strong demand” from customers wishing to be on the final flight – especially the San Francisco-Philadelphia leg. Coach class is near capacity while first-class seats have been sold out since July.

The news outlet also reports that it will take American until late 2016 to rebrand all US Airways’ planes into American’s colours.