Airbus struck a deal with budget airline VietJet for up to 150 single-aisle jets at the Paris Airshow on Tuesday, where industry hopes of a return to tariff-free trade were given a boost by U.S. Transport Secretary Sean Duffy.

The show is happening at a delicate time for Boeing, which is coming off its best month for sales in a year and a half and a deadly plane crash in India involving one of its aircraft.

Airbus struck a deal with budget airline VietJet for up to 150 single-aisle jets at the Paris Airshow today, where industry hopes of a return to tariff-free trade were given a boost by US Transport Secretary Sean Duffy.