Cheap flights from Calgary (YYC) to Chicago (ORD)

Toronto – Halifax from $210 Montreal – Liberia from $367 Halifax – Paris from $590 Ottawa – Cancún from $366 Calgary – Halifax from $350 Vancouver – Paris from $665 Toronto – St. John s from $233 Vancouver – Victoria from $101 Montreal – Lisbon from $610 Montreal – Cozumel from $468 Vancouver – Yellowknife from $376 Ottawa – Lisbon from $776 Quebec City – Lisbon from $753 Montreal – Tokyo from $1,247 Winnipeg – Reykjavik from $902 Prince George – Terrace from $399 Atlanta – Calgary from $370 Montreal – Santiago de Querétaro from $806 Halifax – Glasgow from $746 Montreal – Chicago from $387 Montreal – Fort McMurray from $622 San Juan – Toronto from $334 Toronto – Podgorica from $1,321 Toronto – Fort Lauderdale from $228 Vancouver – Comox from $105 Ottawa – Calgary from $208 Vancouver – Phoenix from $200 Saskatoon – Vancouver from $166 Regina – Toronto from $188 Ottawa – Hamilton from $253 Victoria – Edmonton from $120 Quebec City – Montreal from $493 Abbotsford – Calgary from $124 Montreal – Edmonton from $385 Winnipeg – Hamilton from $162 Halifax – Deer Lake from $374 Calgary – Comox from $121 Saskatoon – Toronto from $229 Vancouver – Winnipeg from $232 Toronto – Nashville from $331 Toronto – Ottawa from $257 Montreal – Fort Lauderdale from $338 Montreal – Vancouver from $294 Winnipeg – Vancouver from $231 Montreal – Punta Cana from $485 Ottawa – Winnipeg from $248 Halifax – Hamilton from $216 Regina – Edmonton from $187