Bombardier said, earlier this month, that it received a letter of intent from an unnamed European customer for 31 firm C Series orders.
No Middle East customer has said when it would take delivery of CSeries jets.
Less than a month after Airbus agreed to rescue Bombardier's struggling C Series jet program, Bombardier has announced a second order for the narrowbody passenger plane. The deal is valued at $1.1 billion based on list prices.
The US trade department imposed tariffs of 300% on the C Series as it upheld a complaint from Boeing over subsidies the aircraft received from the Canadian and United Kingdom governments.
The shopping spree, following months of negotiations, marks an expansion push for Egypt's flag carrier after it weathered slumping tourist visits and a fatal crash a year ago. Egypt civil aviation minister Sherif Fathy said in October that the government expected to pay about $3.3bn of the cost to acquire 45 aircraft.