It would take approximately 13 hours and 40 minutes long to fly from Winnipeg to Afghanistan. The actual flight distance between the two locations is 6,582 miles or 10,594 km.
If you want to fly from DC to Washington it will usually take about 5 and a half hours, but if you fly from Washington to DC then it will usually take about 4 and a half hours. Hope I answered your question.
A flight from St. John's, Canada to Winnipeg, Canada would take about 4 and a half hours. There is approximately 2,009 miles between the two locations.