The episode attracted generally positive reviews from critics. Brian Zoromski of IGN rated "Back from Vacation" 9.7/10, an indication of an "amazing" episode. Stated highlights included the opening sequence, Carell's performance, and Pam's storyline with Jim and Karen. Zoromski concluded in his review that "with so much attention to detail, realistic character reactions, and very few completely over-the-top comedy moments, 'Back from Vacation' is one of the best "Office" episodes yet this season. We're very glad they're back." AOL TV's Michael Sciannamea expressed surprise that Jan accompanied Michael on his vacation and immediately wanted to discover more about their relationship. He was also intrigued with Dwight's attempt to cheer up Pam, until the PMS joke when he thought it "would have been very interesting if Dwight had been a real comfort to her and offered his friendship." Sciannamea concluded that "this was just a terrific episode. Well written, well acted, and had you begging for more at the end. What more can you ask for?"