OC Transpo is a public transit commission that operates 170 bus routes, three light rail lines, and a paratransit system in Ottawa and the National Capital Region.
General information
O-Train: Frequent light rail service. Rail replacement bus routes: Replaces the O-Train when out of service.Night routes: Overnight extensions of frequent routes when the O-Train is not running. Frequent routes: Frequent routes operating every 15 minutes or less between 6:00 am and 6:00 pm on weekdays. Connects with the O-Train and most routes travel on main roads, with some routes providing service on local streets. Local routes: Routes usually operate every 30 minutes during peak times.Routes numbered in the 100s generally do not connect to the O-Train Line 1.Connexion routes: Peak-period routes connecting communities to the O-Train.Numbered in the 200s.Express: Express bus routes offer faster travel times routes offer faster travel times same fare as regular service.300s: Shopper routes400s: Event routes for the Canadian Tire Centre450s: Event routes for Lansdowne Park/TD Place 600s: Intermediate school and/or secondary school routes
The last two digits of route numbers correspond to service area: 00s and 10s – Central 20s – Gloucester 30s – Orléans 40s – Alta Vista 50s – Ottawa West 60s – Kanata/Stittsville 70s – Barrhaven/Riverside South 80s – Nepean 90s – South Keys/Greenboro
NOTE: Routes with a white background operate during select time periods or certain days of the week only. The above is current as of April 27, 2025.
Routes Note: services updated as of April 27, 2025.
A major route overhaul and changes in the network occurred in 2025 due to the opening of Lines 2 and 4, marketed as "New Ways to Bus". Most existing routes saw changes, with some routes being taken out completely. Many new routes were also added to accommodate the changes.
# Terminus Terminus Notes Route map Tunney's Pasture BlairTrim (future) Line 1. Provides service in the downtown core and along parts of the Transitway with stations at (from west to east) Tunney's Pasture, Bayview, Pimisi (Lebreton), Lyon, Parliament, Rideau, uOttawa, Lees, Hurdman, Tremblay, St-Laurent, Cyrville and Blair. Line 1 is currently being expanded as part of the Stage 2 LRT project. Its new terminuses will be Trim station in the East and Algonquin station in the West, with the new segments opening in 2026 and 2027. Bus service from routes 57 to 75 between Tunney's Pasture and Baseline will be replaced by Line 1. West end Connexion service will be shortened from Tunney's Pasture to start/end at Baseline. Current bus service between Trim and Blair stations will be replaced by both lines 1 and 3. Tunney's PastureBlairTrim (future)This route replaces Line 1 when the trains are out of service. Routing depends based on the extent of the closure.Varies per closureDowntownBlairExpress bus route from Downtown Ottawa to Blair Station. Route offers alternative from Line 1 for people commuting directly to and from Blair. Route travels from Blair Station to Downtown during AM peak and between Downtown and Blair during PM peak Bayview Limebank Line 2. If the line is shut down, it is replaced by bus route R2. This is a diesel light rail transit (DLRT) route that provides connections to the communities of Little Italy, Confederation Heights, Heron Park, Greenboro, South Keys, Leitrim, and Riverside South. It also provides a connection to Carleton University and major employment areas west of the downtown core. As part of the New Ways to Bus network change, Line 2 will replace Route 99 between South Keys and Limebank. BayviewLimebankThis route replaces Line 2 when the trains are out of service. Routing depends based on the extent of the closure.Varies per closure Moodie Trim Line 3 will be a new branch of Line 1 launching in 2027. Line 3 will run parallel to Line 1 from Trim station to Lincoln Fields station, then branch off towards Moodie station. This new line will replace bus service from Routes 57 to 67 between Moodie and Tunney's Pasture. West end Connexion service will be shortened from Tunney's Pasture to start/end at Moodie. Current bus service between Trim and Blair stations will be replaced by both lines 1 and 3. Moodie TrimThis route would replace Line 3 when the trains are out of service, after the line begins operation in 2027. Routing depends based on the extent of the closure.Varies per closure Airport South Keys Line 4 is a spur of Line 2 which provides an all-day Airport rail link to/from South Keys station. It replaced Route 97 service to/from the MacDonald Cartier International Airport. AirportGreenboroThis route replaces Line 4 when the trains are out of service. Routing depends based on the extent of the closure.Varies per closureUnknown - most probably Merivale Garage on Colonnade RoadEither Baseline or Tunney's PastureSome pictures on Google show the route serving HurdmanUnlisted route which travels down Woodfield Road and other roads in the Tanglewood neighborhood during mid day. Route is signed as the X Special.Unlisted routeElmvaleRideau Travels via Riverdale, Main, and Elgin. Provides a connection to St. Paul's University. As part of the New Ways to Bus network change, this route will be extended to Elmvale, replacing route 55. Service on Riverdale will be replaced by route 18.Greenboro Greenboro via Bank Billings Bridge Rockcliffe Rideau Serves the communities of New Edinburgh, Lowertown, Centretown, The Glebe, Old Ottawa South, Ridgemont, and South Keys. Also serves major tourist and commercial attractions including Bank street, the ByWard Market, Rideau Centre, Parliament Hill, and Lansdowne Park/TD Place. Early-morning and late-evening service runs between Greenboro and the Rideau Centre only. Southbound early-morning trips stay on Bank Street instead of travelling via Southgate. Extra peak-period trips are provided from Billings Bridge to the Rideau Centre in the morning and the reverse in the afternoon. Extra service is provided in both directions between Billings Bridge and the Rideau Centre when special events are taking place at Lansdowne Park/TD Place. Carleton ParliamentSt-Laurent Rideau Early AM service operates between St. Laurent Station and the Rideau Centre only. Selected AM peak trips begin at the corner of Brittany / Montréal, end at the Parliament station and are signed 7 Parliament. Selected AM peak trips start at Lansdowne Park, end at the Rideau Centre, and are signed 7 Rideau. Extra service is provided between Carleton University and Rideau Centre when special events occur at TD Place Stadium. As part of the New Ways to Bus network change, this route will have its peak period service on Brittany removed and replaced by routes 17 and 20.GatineauDow's LakeFrequent service between Dow's Lake and Gatineau 7 days a week.Hurdman BeechwoodRideau Selected peak-period trips start/end at the corner of Crichton and Beechwood. Travels near Ottawa's baseball stadium RCGT Park, located on Coventry Road. As part of the New Ways to Bus network change, service will run east on Murray instead of Boteler, and will be extended south on Sussex and shortened on Dalhousie.HurdmanMain Provides a direct connection from Carleton University to downtown Ottawa. Travels via Bronson Avenue. Some northbound and southbound trips end at Carleton University. As part of the New Ways to Bus network change, this route will be extended to St. Paul's University, replacing route 16.Lincoln Fields Bayshore Tunney's PastureParliament to/vers Laurier Eastbound trips terminate downtown at Waller, Laurier & Nicholas. Serves the northern part of Nepean along Richmond Road. Also serves the communities of Westboro and Chinatown. Serves Tunney's Pasture via Holland. Travels via Queen Street downtown. Early morning trips travel between Parliament and Tunney's Pasture stations only. As part of the New Ways to Bus network change, service will be changed to run on Ambleside instead of Richmond, run on Bayswater, Scott, and Preston instead of Somerset, and run in eastbound direction on Queen, O'Connor and Slater to the Mackenzie King BridgeTunney's PastureBlair Travels between Blair and Tunney's Pasture stations via Ogilvie, Jasmine, Montréal and Rideau.GatineauTunney's PastureFrequent peak period service between Tunney's Pasture and Gatineau.St-LaurentTunney's PastureAll trips travel between St. Laurent and Tunney's Pasture stations. This is one of the only routes with all day service that do not have any shortened or extended trips in any time period on any day of the week.BlairParliamentPeak period trips operate between Blair station and Parliament via Bathgate, Den Haag and Montréal. Does not operate on weekends. As part of the New Ways to Bus network change, service will be shortened to end at Parliament Station instead of Gatineau, with service into Gatineau replaced by new routes 8 and 13.WateridgeParliamentPeak period trips operate between Wateridge and Parliament via Rideau Street, Montréal Road, St-Laurent Boulevard, Brittany Drive, Montréal Road, Wanaki Road, Mikinak Road, and Codd’s Road. Does not operate on weekends.St-LaurentBillings Bridge Serves the community of Overbrook, just east of downtown Ottawa. Travels near Ottawa's baseball stadium RCGT Park, located on Coventry. As part of the New Ways to Bus network change, this route will be rerouted to run from St-Laurent to Billings Bridge, with service to Parliament removed. It will also replace route 5 service on Riverdale.Hurdman St-LaurentParliament Operates in the communities of Sandy Hill, Lowertown, Vanier, and the Ottawa Trainyards. No service between St. Laurent and Hurdman via Belfast and Terminal before 8:00am and after 9:00pm weekdays and Saturday, and after 7:25pm Sunday. St-LaurentRideauTravels between St-Laurent and Rideau via Montfort Hospital, Montréal, and Brittany. As part of the New Ways to Bus network change, this route will be extended to Rideau Station.BlairCanotek Operates three trips to Canotek during the morning peak, and two trips to Blair during the afternoon peak. Travels via Ottawa Road 174 and Montréal to/from the Canotek Business Park, located in the northeastern part of Gloucester, Ontario.BlairRothwell HeightsPerforms a one-way loop throughout the community of Rothwell Heights. Operates during peak periods and provides limited service during midday Monday–Friday only.St-Laurent BlairChapel Hill Blackburn HamletFollows a one-way loop throughout the community of Beacon Hill North. Early-morning trips Monday–Friday end at Blair station. Weekend late evening trips start/end at Blair station. As part of the New Ways to Bus network change, this route will be extended to Chapel Hill Park & Ride via Blackburn Hamlet and Navan Road.Wateridge La Cité BlairMillennium BlairTravels via Trim, Innes, Blair, Bathgate, Den Haag and Carson's in Orléans and Blackburn Hamlet. Continues past Blair station to/from La Cité. Early morning and late evening trips operate between Millennium and Blair stations only. In the AM peak, some eastbound trips end at Blair station. Some selected trips get extended to the Canada Aviation and Space Museum. As part of the New Ways to Bus network change, route 25 will be extended to Wateridge Village replacing route 27, and service to the Canada Aviation and Space Museum was replaced by Local route 125.BlairPineviewPerforms a one-way loop throughout the Pineview community Monday to Friday.MillenniumBlairTravels via Trim, Montmère, Brian Coburn, Mer Bleue & Jeanne d'Arc. Serves the communities of Avalon, Châteauneuf, Chapel Hill North & Convent Glen in Orléans.Place d'OrléansTenth LineTravels between Place d'Orléans and Tenth Line Road via Chapel Hill. Operates 7 days a week.Chapel HillBlair On weekdays, all trips start/end at Chapel Hill Park & Ride. Provides limited service to Sunview on weekends.