3 ms·On average and handled correctly, a 747 at 40000 feet has about 100 miles of range, discounting winds.by hansthehorse 8y agoOn average and handled correctly, a 747 at 40000 feet has about 100 miles of range, discounting winds.walrus01 8y agoWhich is not a lot, if the only airports within 100 miles have runways too short for a 747.snuxoll 8y agoWhat about a body of water? It’s not ideal but it seems like the best option if there’s no suitable runway.