Combined with its existing orderbook, WestJet will receive as many as 22 new 737 MAX aircraft before the end of 2025 and 62 before the end of 2028.

Mesa has taken steps to pay down debt and shore up revenue through aircraft sales and an increase in the amount United pays its regional partner per block hour.

With limited government financial support, some of Brazil's airlines exited the pandemic period with balance sheets stretched to a much greater degree.