The flight distance from St. Mary's Airport (ISC) in St. Mary's, United Kingdom to Calgary International Airport (YYC) in Calgary, Canada is 6,873 kilometers (4,271 miles / 3,711 nautical miles). The estimated flight time for this route is approximately 9h, flying northwest at a heading of 317°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting United Kingdom with Canada. It is an intercontinental flight between Europe and North America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 11:55 in St. Mary's, it's 04:55 in Calgary. With a 7-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 3,441 feet between the two airports. Calgary International Airport sits higher than St. Mary's Airport.

The return flight from Calgary (YYC) to St. Mary's (ISC) follows a heading of 44° (northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the St. Mary's Airport (ISC) and Calgary International Airport (YYC) detail pages, or use our flight duration calculator to compare other routes.