Jones' score in the first quarter put the Ravens ahead 10-7 and division-leading Baltimore (8-2) added a pair of Justin Tucker field goals to ensure its third straight victory.
Joe Flacco completed 20-of-32 passes for 164 yards with no interceptions and Baltimore's defense forced three Pittsburgh turnovers.
Anquan Boldin made eight grabs for 79 yards and Ray Rice provided 93 total yards for the Ravens, who compiled only 200 total yards of offense.
Emmanuel Sanders made three grabs for 82 yards as the Steelers fell at home for the first time this season.
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