Halstra is a village in Linköping Municipality, in Östergötland County, Sweden. Halstra lies at 43 m above sea level. The nearest city is Linköping, 12.9 km to the west. Among the landmarks around are Linköping Cathedral (13.2 km), Östergötland Museum (13.1 km) and Vreta Abbey (17.5 km). Among the natural features are Flistads brunn (22 km).