Most travellers find the cheapest round-trip flights to Ottawa when choosing a flight departing in April.
From most locations, booking your flights to Ottawa around 48 days prior to your departure date finds the best deals.
From most locations, the cheapest day to fly to Ottawa is Saturday. Most users found that departing on a Monday was most expensive.
Our data shows that the cheapest Ottawa flights are usually those with noon departure times. evening flights are often costlier.