The average train between Oshawa and Downtown Markham takes 2h 36m and the fastest train takes 1h 31m. The train service runs several times per day from Oshawa to Downtown Markham. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 4 hours between Oshawa and Downtown Markham. The earliest departure is at 8:57 AM in the morning, and the last departure from Oshawa is at 10:52 PM which arrives into Downtown Markham at 9:40 AM. All services require a transfer, and take on average 2h 36m. The schedules shown below are for the next available departures.

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2h 3m • 1 changeWant to know about travelling from Oshawa to Downtown Markham? 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 train from Oshawa to Downtown Markham. However, there are services departing from Oshawa station and arriving at Unionville GO station via Toronto Union Station. The journey, including transfers, takes approximately 2h 36m.
Oshawa to Downtown Markham train services, operated by VIA Rail, depart from Oshawa station.
Oshawa to Downtown Markham train services, operated by GO Transit, arrive at Unionville GO station.
The distance between Oshawa and Downtown Markham is 38.1 km. The road distance is 48 km.
You can take a train from Oshawa to Unionville GO via Union Station GO in around 2h 26m.