He had won in Bahrain and in the season-opener in Australia, when he wasn't as dominant as Hamilton but took advantage of a safety vehicle to win on race strategy.
The defending, four-time World champion dominated from start to finish, save for a spell during the mid-race pit-stops, and clocked a series of record laps as he registered his second successive win. "A one-two for the team; we've got our Mercedes board with us who have been supporting us from day one, so it's great to have them here and just see that true force within the team".
"Today, the auto and myself - I felt that synergy today that I hadn't been feeling all year, so it's a good feeling", said Hamilton. "A 1-2 for the team", Hamilton said.
"I said that I wanted to win in the way that I won and I guess, when I was coming across the line, I was just happy that I did it as I planned". I think that showed in my face.
In fact, after winning the first two races of the season, Vettel has failed to finish on the podium.
The 33-year-old British driver was in a class of his own as he galloped to a 21-second triumph - lapping the field up to fifth - while his main championship rival, Sebastian Vettel, faltered to only fourth place.
The German driver is now 17 points behind Hamilton in the Drivers' Championship despite being 17 points ahead in Bahrain (only three races ago).
"We couldn't make the tyres last", said Vettel. "Even in the end, with a fresher set, I wasn't able to attack until the end".
Even if one were to assume that two-stopping was Ferrari's strategy for Vettel's race, it wouldn't be too hard to think that they were more foolhardy than fearless.
Vettel was also fourth in Azerbaijan, when he made a mistake while trying to pass Valtteri Bottas late in the race. "Third, I think it was a poor weekend in terms of reliability". Kimi [Raikkonen] had an issue with the engine [on Friday], had to change the engine and obviously then retired in the race. McLaren's Stoffel Vandoorne also retired because of a vehicle failure.
But Mercedes, who pitted some 10 laps earlier than the two Red Bulls, managed their tyres to the finish, while Vettel's hopes were futher dashed by his own slow second stop under the virtual safety auto. He said, "It feels nice to be on the podium and nice to have a good clean race".
Out came the safety auto with Hamilton then executing a masterful restart to leave Vettel for dust before establishing a comfortable cushion over his rival. Sergio Perez took ninth in his Force India, and Sauber finished with one point, courtesy of Charles LeClerc in 10th.
The leading cars navigated the opening metres without drama before the error-prone Romain Grosjean, once labelled a "first-lap nutcase" by Mark Webber, lived up to that title by sparking a huge crash after he lost control of his Haas at Turn 3 and slid back across the track in a cloud of tyre smoke.