Ottawa to Chicago
Ottawa to Chicago is cheapest in 4 of the 11 months we have priced, all at 539 €. September, the most expensive month we measured, costs about 43 € more.
Ottawa to Chicago is 1,051 km flown direct. Every fare we measured came from WS.
That comes from pricing 296 departure dates across 11 months. Every figure below is a fare we measured on the day shown, not a live quote. When we have nothing fresh to say about a route, its page stops existing.
What is a good price from Ottawa to Chicago?
Anything at or below the quarter mark beats three in four of the 296 one-way fares we measured here. Above the median, wait or move the date.
seen 27 Sep 2026
How far ahead do the cheap fares sit?
When we measured, the cheapest quarter of fares sat between 102 and 228 days before departure, noticeably further out than the rest of the market. If you can look a few months ahead, that is where the cheap seats are sitting.
a snapshot of where the cheap seats sat, seen 27 Sep 2026
Which day of the week is cheapest?
On average, Tuesday departures came out lowest and Monday highest, a spread of about 27 €. The day matters less than the month here: pick the month first, then the day.