The Department of Transportation (DOT) has required six airlines to pay more than $600 million in refunds and $7.5 million in civil penalties.

Canada’s largest airline Air Canada has acknowledged there is an aggressive landscape in the country’s domestic market but remains convinced that its network diversification is a strong competitive weapon it can use to fend off new entrants.

Azul is the latest Brazilian airline to post a loss in the third quarter (Q3) even as robust demand trends show no signs of slowing down.