Carrying an increased number of American, Brazilian and Australian travellers, Eurostar saw its operating profit rise from £25.0 million in 2011 to £52.3 million in 2012.
In total, the company carried 9.9 million passengers last year compared with 9.7 million in 2011.
Passenger numbers were strong after the Olympics, with traffic up 5% in the last three months of last year compared with the October-December 2011 period.
While business passenger number remained flat last year, the leisure travel market rose 3%. Non-EU passenger numbers grew 8% in 2012.
Eurostar chief executive Nicolas Petrovic said: "Despite the challenging economic climate, we delivered a strong performance in 2012.
All Eurostar services suspended because of the snow. Mike Pearse reports.
The French authorities have shut the A16 leading to the port of Calais and Eurotunnel. This will cause major delays to freight. Eurostar has suspended passenger services between Britain and France because of the weather. Lines in France are blocked by snow.
The company is advising passengers with tickets for today not to go to Ashford International or St Pancras, they say refunds will be paid.
There is disruption on Eurostar at St Pancras, at Ebbsfleet International and at Ashford International due to train stopped in the tunnel.
A Eurotunnel service has stopped in the Tunnel with a fault, so only one line is open through the Tunnel. The longest delay at present is one hour, though most delays are currently around 30 minutes.
The Olympics, Paralympics and a fluctuating pound/euro exchange rate hit sales revenues in quarter three but Eurostar remain positive. For the year to date, passenger numbers were up from 7.3 million to 7.4 million with sales revenues down 1% to £612 million this year from £619 million in 2011.
There are delays of up to 45 minutes on Eurostar services from St Pancras International, Ebbsfleet International and Ashford International Station.
This is due to electrical supply problems in France.
Services are returning to normal after a pedestrian was struck by a high speed train in northern France. Eurostar departures to and from Kent and London were delayed by more than an hour while investigations into the accident took place.
Delays of up to one hour on Eurostar at St Pancras International, at Ebbsfleet International & Ashford International after a person was hit by a train in France.
There are delays of up to one hour on Eurostar trains at St Pancras International, at Ebbsfleet International and at Ashford International in Kent after a person was hit by train in France.