Its earnings before interest, taxes, depreciation, and amortization (EBITDA) reached 796 million euros ($930.13 million) in July to September, it said on Friday, up from a loss of 442 million euros in the same period of 2020.
The number of passengers booking flights over the three months close to doubled year-on-year to 16.9 million.
“We had guided for a positive EBITDA, but 800 million euros exceeded our expectations,” finance chief Steven Zaat told journalists in a call.
Air France-KLM predicted that its EBITDA would land positive for the final quarter and “slightly” positive over the whole of 2021.
The group said it had seen a rapid pickup in bookings for November and the Christmas holidays, after the United States announced in September it would reopen its borders to fully vaccinated Europeans.
Autumn reopenings in Canada and Singapore further paved the way for recovery, said Zaat, though long-haul business remained hampered by restrictions in Australia, China and Japan.
The group also whittled down its net debt to 8.1 billion euros by the end of September, down 2.9 billion euros from the end of 2020.
Air France-KLM last year received a total of 10.4 billion euros in loans backed by France and the Netherlands, and has for months been discussing a recapitalisation plan to lighten the resulting debt load.
It said it had agreed to pay back 500 million euros of a state-backed loan within the coming weeks, and the remaining 3.5 billion euros in three instalments between 2023 and 2025.
The group said it was considering another rights issue under good market conditions, after a capital hike earlier in the year saw the French government more than double its stake to just under 30%.
($1 = 0.8558 euros)
