The Saskatchewan Transportation Company (STC) offers Saskatchewan's equivalent to Greyhound Bus Lines into the city of Estevan. Greyhound does run through Saskatchewan, however a transfer will be required in Regina or other major city. There is no passenger train service into the city.
The closest international/regional airports are Regina (approximately 2 hours away) and Minot, North Dakota, USA (approximately 2 hours away).
If driving from the USA, closest ports of entry are Noonan, North Dakota and Portal, North Dakota. The North Portal customs office is open 24 hours a day, while the Estevan/Noonan port closes at 9pm.
There is no public transit in Estevan. While the city is relatively walkable due to its size, one may choose to rent a car.