Josh Smith scored 20 and Al Horford had 15 for the Hawks, who responded with a road win one night after falling 93-76 to the Orlando Magic.
Thaddeus Young scored 22 points, Andre Iguodala added 16 and Jason Smith had 14 for the struggling Sixers, who have dropped five in a row and seven of the past eight. Rodney Carney also had 13 off the bench.
Elton Brand missed his second consecutive game for Philadelphia with a sore right hamstring. This was in addition to missing guard Lou Williams (fractured jaw) and forward Marreese Speights, who is out until January with a torn medial collateral ligament in his left knee.
Jason Smith started for Brand while rookie Jrue Holiday started his second game in place of Williams. Holiday was 1-for-8 from the field and had two points and five assists in 25 minutes.
The Hawks led 84-74 with 7:34 remaining in the fourth quarter.
Iguodala converted a difficult bank shot from the foul line to pull the Sixers within 88-82 with 4:59 left.
But Crawford and Smith followed with consecutive jumpers to quickly extend the lead back to 10 at 92-82 with 4:01 remaining.
The Sixers never threatened the rest of the game.
After the Sixers jumped out to a 41-37 advantage, the Hawks finished the first half on a 9-0 run to take a 46-41 lead. Smith scored six of the nine points.
Notes
Sixers G Willie Green hit a half-court shot just before the first-quarter buzzer. … Hawks G Mike Bibby was 5-for-5 in the first quarter, including three 3-pointers. Samuel Dalembert blocked a season-high six shots for Philadelphia.