Helicopter teams used controlled explosions to trigger avalanches and clear dangerous areas of snow so the train line to the town could be safely reopened, the Telegraph reports.
The Matterhorn Gotthard Bahn railway company resumed services shortly after 5pm local time, finally opening a route to the resort, which had been cut off for two days. The risk of avalanches was too high for trains to run, as well as the issue of snow on the tracks.
The whole rail route should be open later on Thursday the railway company on its website.
For many, the only way in or out was by helicopter, with many tourists choosing to pay 70 Swiss francs (£50) for a seat on a flight.
British snowboarder John Bromell, who went missing in France just before the massive snowfall which covered the Alps, has not been located.
Fears are mounting for the 39-year-old from Lincolnshire, who went missing on Sunday in the resort of Tignes when he returned to the slopes alone “for one last run” despite worsening weather.
The search was continuing on Wednesday but hopes of finding him alive were fading.
The Foreign Office said on its website that further power cuts in the area are possible and advises people to contact the local police in Zermatt on +41 27 966 22 22 if necessary.
