Cheap flights from Ottawa (YOW) to Houston (IAH)

Montreal – Liberia from $359 Vancouver – Victoria from $94 Toronto – Halifax from $197 Quebec City – Lisbon from $752 Vancouver – Paris from $572 Halifax – Paris from $588 Ottawa – Cancún from $432 Vancouver – Yellowknife from $238 Montreal – Lisbon from $670 Montreal – Cozumel from $476 Montreal – Tokyo from $1,440 Ottawa – Lisbon from $775 Toronto – St. John s from $225 Calgary – Halifax from $360 Winnipeg – Reykjavik from $859 Atlanta – Calgary from $303 Montreal – Fort McMurray from $516 Prince George – Terrace from $365 Montreal – Chicago from $390 Toronto – Podgorica from $1,322 Montreal – Santiago de Querétaro from $741 Halifax – Glasgow from $727 San Juan – Toronto from $379 Vancouver – Comox from $81 Ottawa – Toronto from $169 Saskatoon – Vancouver from $150 Toronto – Tampa from $201 Regina – Minneapolis from $280 Victoria – Kelowna from $141 Victoria – Atlanta from $332 Regina – Edmonton from $159 Vancouver – Phoenix from $197 Regina – Vancouver from $183 Halifax – Hamilton from $209 Halifax – Toronto from $198 Toronto – Ottawa from $172 Toronto – Fort Lauderdale from $209 Winnipeg – Vancouver from $189 Victoria – Phoenix from $271 Kelowna – Victoria from $139 Montreal – Fort Lauderdale from $305 Ottawa – Calgary from $198 Kelowna – Comox from $140 Ottawa – Hamilton from $157 Quebec City – Nassau from $487 Toronto – Orlando from $266 Abbotsford – Cranbrook from $237 Abbotsford – Puerto Vallarta from $485