Delta, the world s biggest airline, has announced a number of new partnerships with other large network carriers. Here, its Boeing 767-432ER N845MH (c/n 29719) departs London Heathrow.

Boeing 787-8 G-ZBJA (c/n 38609), pictured at Toronto Lester B Pearson International Airport, is operated by British Airways, whose IAG parent company is one of several network carriers to have posted strong results recently.