The average bus between Ottawa and Watertown takes 14h 48m and the fastest bus takes 11h 38m. There is at least one bus per day from Ottawa to Watertown. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run once daily between Ottawa and Watertown. The earliest departure is at 12:00 PM in the afternoon, and the last departure from Ottawa is at 8:45 PM which arrives into Watertown at 8:24 AM. All services require a transfer at Montreal, QC - 1597 Rue St-Hubert and take an average of 14h 48m. The schedules shown below are for the next available departures.
Arrives next day


18h 47m • 2 changes
Arrives next day


11h 38m • 2 changes
Arrives next day


18h 47m • 2 changes
Arrives next day


11h 38m • 2 changes
Arrives next day


18h 47m • 2 changes
Arrives next day


11h 38m • 2 changes
Want to know about travelling from Ottawa to Watertown? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Ottawa to Watertown. However, there are services departing from Ottawa station and arriving at Watertown station via Montreal, QC - 1597 Rue St-Hubert. The journey, including transfers, takes approximately 14h 48m.
Ottawa to Watertown bus services, operated by Tour Express, depart from Ottawa, ON - 600 Cumberland St station.
Ottawa to Watertown bus services, operated by Tour Express, arrive at Boston station.
The distance between Ottawa and Watertown is 495 km. The road distance is 719 km.
You can take a bus from Ottawa, ON - 600 Cumberland St to Galen St @ Water St via Montreal, QC - 1597 Rue St-Hubert, Montreal, Boston, and Federal St @ Franklin St in around 11h 18m.