Revenue was flat at US$16 billion while net losses narrowed to US$553m, from US$981m. Earnings before interest, tax and other one-off items rose 57 per cent to US$672m.
Bombardier received a boost last month when it unexpectedly won a ruling at the US International Trade Commission, which found against rival Boeing's demands that it impose swingeing tariffs on sales of the Canadian company's C Series jet.
The US had threatened to slap import duties of 300 per cent on the C Series, after finding merit in Boeing's complaint that the plane had benefitted from illegal state subsidies.
But publishing the details of its ruling earlier this week, the ITC said that "Boeing lost no sales or revenues" from the C Series. It found that the 110-seat C Series does not compete with Boeing's smallest 737 MAX 7 plane.
The dispute had threatened to turn into a diplomatic row, with both the Canadian and UK governments highly critical of Boeing's actions. The wings of the C Series are made at Bombardier's plant in Belfast, where it employs 4,000 people.
Alongside the C Series, Bombardier has high hopes for its Global 7000 business jet, which will enter into service this year.