{"id":15693,"date":"2026-08-23T05:01:31","date_gmt":"2026-08-23T09:01:31","guid":{"rendered":"https:\/\/ottawa-future.com\/bus-21-ottawa"},"modified":"2026-08-23T05:01:40","modified_gmt":"2026-08-23T09:01:40","slug":"bus-21-ottawa","status":"publish","type":"post","link":"https:\/\/ottawa-future.com\/en\/bus-21-ottawa","title":{"rendered":"Ottawa Bus 21"},"content":{"rendered":"<p>Bus 21 in Ottawa links Blair D and Canotek \/ Rainbow. The route is 6.5 km long with 13 stops, and the official schedule from OC Transpo puts the full trip at about 6 minutes. On a weekday it runs 3 trips in one direction.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cdn.ottawa-future.com\/wp-content\/uploads\/sites\/37\/2026\/08\/top-transport_bus-21-ottawa-v1-map.jpg\" alt=\"Route map of bus 21 in Ottawa: Blair D to Canotek \/ Rainbow\" width=\"1200\" height=\"780\" loading=\"lazy\"><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_68_1 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6a8ae6fa2ee21\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a8ae6fa2ee21\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#Route_at_a_glance\" title=\"Route at a glance\">Route at a glance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#Route_of_Bus_21\" title=\"Route of Bus 21\">Route of Bus 21<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#Outbound_Blair_D_%E2%86%92_Canotek_Rainbow\" title=\"Outbound: Blair D \u2192 Canotek \/ Rainbow\">Outbound: Blair D \u2192 Canotek \/ Rainbow<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#Inbound_Canotek_Rainbow_%E2%86%92_Blair_D\" title=\"Inbound: Canotek \/ Rainbow \u2192 Blair D\">Inbound: Canotek \/ Rainbow \u2192 Blair D<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#Schedule_and_frequency\" title=\"Schedule and frequency\">Schedule and frequency<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#Frequently_asked_questions\" title=\"Frequently asked questions\">Frequently asked questions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#When_do_the_first_and_last_trips_run\" title=\"When do the first and last trips run?\">When do the first and last trips run?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#How_long_does_the_trip_from_Blair_D_to_Canotek_Rainbow_take\" title=\"How long does the trip from Blair D to Canotek \/ Rainbow take?\">How long does the trip from Blair D to Canotek \/ Rainbow take?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#How_many_stops_does_the_route_have\" title=\"How many stops does the route have?\">How many stops does the route have?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/ottawa-future.com\/en\/bus-21-ottawa\/#Does_bus_21_run_on_weekends\" title=\"Does bus 21 run on weekends?\">Does bus 21 run on weekends?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Route_at_a_glance\"><\/span>Route at a glance<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<tbody>\n<tr>\n<th>Mode<\/th>\n<td>Bus<\/td>\n<\/tr>\n<tr>\n<th>Route number<\/th>\n<td>21<\/td>\n<\/tr>\n<tr>\n<th>City<\/th>\n<td>Ottawa<\/td>\n<\/tr>\n<tr>\n<th>Transit authority<\/th>\n<td>OC Transpo<\/td>\n<\/tr>\n<tr>\n<th>Start \u2192 end<\/th>\n<td>Blair D \u2192 Canotek \/ Rainbow<\/td>\n<\/tr>\n<tr>\n<th>End \u2192 start<\/th>\n<td>Canotek \/ Rainbow \u2192 Blair D<\/td>\n<\/tr>\n<tr>\n<th>Route length<\/th>\n<td>6.5 km \/ 5.7 km in the opposite direction<\/td>\n<\/tr>\n<tr>\n<th>Number of stops<\/th>\n<td>13 \/ 11 in the opposite direction<\/td>\n<\/tr>\n<tr>\n<th>Travel time<\/th>\n<td>about 6 minutes<\/td>\n<\/tr>\n<tr>\n<th>Trips per day<\/th>\n<td>3 on weekdays one way<\/td>\n<\/tr>\n<tr>\n<th>Frequency<\/th>\n<td>peak 28\u201362<\/td>\n<\/tr>\n<tr>\n<th>First \/ last trip from \u00abBlair D\u00bb<\/th>\n<td>07:10 \/ 08:40<\/td>\n<\/tr>\n<tr>\n<th>First \/ last trip from \u00abCanotek \/ Rainbow\u00bb<\/th>\n<td>16:05 \/ 17:06<\/td>\n<\/tr>\n<tr>\n<th>Fare<\/th>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<th>Updated<\/th>\n<td>August 23, 2026<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Route_of_Bus_21\"><\/span>Route of Bus 21<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Outbound_Blair_D_%E2%86%92_Canotek_Rainbow\"><\/span>Outbound: Blair D \u2192 Canotek \/ Rainbow<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>This direction has 13 stops and runs 6.5 km. The route passes Montr\u00e9al \/ R.r. 174, Canotek \/ Shefford, Canotek \/ Ad. 5350, Canotek \/ Ad. 5420. Below is the full list with the distance from the first stop.<\/p>\n<table>\n<thead>\n<tr>\n<th>No.<\/th>\n<th>Stop<\/th>\n<th>From start<\/th>\n<th>Note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Blair D<\/td>\n<td>0.0 km<\/td>\n<td>Terminus<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Montr\u00e9al \/ R.r. 174<\/td>\n<td>4.0 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Montr\u00e9al \/ Shefford<\/td>\n<td>4.2 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Canotek \/ Shefford<\/td>\n<td>4.5 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Canotek \/ Rainbow<\/td>\n<td>4.6 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>Canotek \/ Ad. 5350<\/td>\n<td>4.9 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>Canotek \/ Ad. 5370<\/td>\n<td>5.1 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>Canotek \/ Ad. 5420<\/td>\n<td>5.3 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>9<\/td>\n<td>Canotek \/ Ad. 5480<\/td>\n<td>5.6 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>Canotek \/ Ad. 5510<\/td>\n<td>5.8 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>11<\/td>\n<td>Canotek \/ Ad. 5369<\/td>\n<td>6.1 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>12<\/td>\n<td>Canotek \/ Ad. 5350<\/td>\n<td>6.3 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>13<\/td>\n<td>Canotek \/ Rainbow<\/td>\n<td>6.5 km<\/td>\n<td>Terminus<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Inbound_Canotek_Rainbow_%E2%86%92_Blair_D\"><\/span>Inbound: Canotek \/ Rainbow \u2192 Blair D<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>This direction has 11 stops and runs 5.7 km. The route passes Canotek \/ Ad. 5370, Canotek \/ Ad. 5480, Canotek \/ Ad. 5369, Canotek \/ Rainbow. Below is the full list with the distance from the first stop.<\/p>\n<table>\n<thead>\n<tr>\n<th>No.<\/th>\n<th>Stop<\/th>\n<th>From start<\/th>\n<th>Note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Canotek \/ Ad. 5350<\/td>\n<td>0.0 km<\/td>\n<td>Terminus<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Canotek \/ Ad. 5370<\/td>\n<td>0.2 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Canotek \/ Ad. 5420<\/td>\n<td>0.4 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Canotek \/ Ad. 5480<\/td>\n<td>0.7 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Canotek \/ Ad. 5510<\/td>\n<td>0.9 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>Canotek \/ Ad. 5369<\/td>\n<td>1.2 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>Canotek \/ Ad. 5350<\/td>\n<td>1.4 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>Canotek \/ Rainbow<\/td>\n<td>1.6 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>9<\/td>\n<td>Shefford \/ Montr\u00e9al<\/td>\n<td>1.9 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td>Montr\u00e9al \/ Shefford<\/td>\n<td>2.1 km<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>11<\/td>\n<td>Blair C<\/td>\n<td>5.7 km<\/td>\n<td>Terminus<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Schedule_and_frequency\"><\/span>Schedule and frequency<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>According to the official schedule from OC Transpo, the route runs 3 trips in one direction on a weekday.<\/p>\n<table>\n<thead>\n<tr>\n<th>Direction<\/th>\n<th>Weekdays<\/th>\n<th>Weekends and holidays<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>From \u00abBlair D\u00bb<\/td>\n<td>07:10 \u2014 08:40<\/td>\n<td>\u2014 \u2014 \u2014<\/td>\n<\/tr>\n<tr>\n<td>From \u00abCanotek \/ Rainbow\u00bb<\/td>\n<td>16:05 \u2014 17:06<\/td>\n<td>\u2014 \u2014 \u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Frequency calculated from the departure table: in the morning peak buses run every 28\u201362 minutes, most often every 45.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_asked_questions\"><\/span>Frequently asked questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"When_do_the_first_and_last_trips_run\"><\/span>When do the first and last trips run?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>From Blair D the first is at 07:10 and the last at 08:40. From Canotek \/ Rainbow they are 16:05 and 17:06.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_long_does_the_trip_from_Blair_D_to_Canotek_Rainbow_take\"><\/span>How long does the trip from Blair D to Canotek \/ Rainbow take?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>About 6 minutes end to end \u2014 the median of full trips in the official schedule.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_many_stops_does_the_route_have\"><\/span>How many stops does the route have?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>13 outbound and 11 inbound according to the official GTFS feed. The two lists do not match exactly.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_bus_21_run_on_weekends\"><\/span>Does bus 21 run on weekends?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Yes, the route runs every day, with a separate weekend schedule.<\/p>\n<p>Every route number with its termini, operating hours and travel time is collected in the <a href=\"\/en\/buses-ottawa\">Ottawa buses<\/a> overview.<\/p>\n<p><em>Data current as of August 23, 2026. Schedule and termini \u2014 OC Transpo. Fares \u2014 OC Transpo. Stop list, schedule and route geometry come from the official GTFS feed (OC Transpo, version S1000512-S1000514).<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bus 21 in Ottawa links Blair D and Canotek \/ Rainbow. The route is 6.5 km long with 13 stops, and the official schedule from OC Transpo puts the full trip at about 6 minutes. On a weekday it runs 3 trips in one direction. Route at a glance Mode Bus Route number 21 City [&hellip;]<\/p>\n","protected":false},"author":641,"featured_media":15694,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4288],"tags":[],"moimportance":[],"motype":[],"moformat":[],"class_list":{"0":"post-15693","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-transport-en"},"_links":{"self":[{"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/posts\/15693","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/users\/641"}],"replies":[{"embeddable":true,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/comments?post=15693"}],"version-history":[{"count":1,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/posts\/15693\/revisions"}],"predecessor-version":[{"id":15697,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/posts\/15693\/revisions\/15697"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/media\/15694"}],"wp:attachment":[{"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/media?parent=15693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/categories?post=15693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/tags?post=15693"},{"taxonomy":"moimportance","embeddable":true,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/moimportance?post=15693"},{"taxonomy":"motype","embeddable":true,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/motype?post=15693"},{"taxonomy":"moformat","embeddable":true,"href":"https:\/\/ottawa-future.com\/en\/wp-json\/wp\/v2\/moformat?post=15693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}