Inter-Dominion Air Lines

Inter-Dominion Air Lines is one of British Columbia's two flag-carrier airlines, focussing on scheduled continental and overseas international services.

= History = Imperial Airways of the United Kingdom established its first permanent North American presence in 1927, purchasing four DH.66 Hercules airliners from De Havilland BC in 1929. Two years later, the Dominion government pointed out to Imperial Airways that the conditions set out in the Dominion's Railway Act which govern foreign ownership of railway companies in British Columbia are applicable to air transport as well, the BC operations were spun off into a separate BC subsidiary called British Columbia Air Lines (BCAL).

In 1936, BCAL was renamed Inter-Dominion Air Lines to coincide with the inauguration of a through service linking Victoria, BC with St John's, Newfoundland through Canada, linking the British Empire's three North American Dominions. Flying DH.86C Express aircraft carrying up to 16 passengers, the "Inter-Dominion Service", as it was called, had a weekly departure from each end, with the eastbound route being Victoria – Vancouver – Calgary, Alberta – Saskatoon, Saskatchewan – Winnipeg, Manitoba – Fort William, Ontario – Sudbury, Ontario – Ottawa, Ontario – Montreal, Quebec – Fredericton, New Brunswick – Halifax, Nova Scotia – St John's, a total of 2,989 nautical miles (3,335 statute miles). With an a cruising speed of 123 knots, the complete trip was scheduled at 25 hours 13 minutes.

In 1981, Inter-Dominion sold its routes connecting Cassiar and Mackenzie in northern BC with Canada's northern territories and Alberta to Northern Thunderbird Air.

In June 2020, Inter-Dominion entered into a codeshare agreement with Air Koryo of North Korea.

Incidents

 * 1938 https://aviation-safety.net/database/record.php?id=19381118-1 De Havilland BC DH.86 Express
 * 1956 https://aviation-safety.net/database/record.php?id=19561209-1
 * 2002 https://aviation-safety.net/database/record.php?id=20020513-0
 * 2018 https://aviation-safety.net/database/record.php?id=20180826-1

= Fleet = incomplete

Historic

 * DHBC DH.50 Bluebird - 4 (1932–1958)

= Routes = There are codeshare agreements with Air Koryo, Air New Zealand, British Airways, ČSA Czech Airlines, and Thai Airways International.