The flight distance from St. Mary's Airport (ISC) in St. Mary's, United Kingdom to London Heathrow Airport (LHR) in London, United Kingdom is 446 kilometers (277 miles / 241 nautical miles). The estimated flight time for this route is approximately 2h, flying east northeast at a heading of 65°.

This is a short regional route, typically operated by turboprop or small regional jet aircraft. Flight time is minimal and passengers can expect a quick, efficient journey.

This is a domestic route within United Kingdom. Both airports operate in the same country, which may simplify travel requirements and documentation.

Time zone information: When it's 15:56 in St. Mary's, it's 15:56 in London.

The return flight from London (LHR) to St. Mary's (ISC) follows a heading of 249° (west southwest). 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 London Heathrow Airport (LHR) detail pages, or use our flight duration calculator to compare other routes.