[3] At Allmusic, Stephen Thomas Erlewine rated the album three-and-a-half stars out of five, stating that even "If there isn't much spark, there is a surplus of warmth; the trio is comfortable and relaxed, and it's hard not to succumb to such friendly, familiar vibes.

"[10] At The Oakland Press, Gary Graff rated the album three-and-a-half out of four stars, saying that the release is "a welcome return from a hiatus well-spent.

"[5] At Paste, Holly Gleason rated the album 8.2 out of 10, writing that the release is "Not merely a product of maturity, Nickel Creek has grown without losing its palpable joy or wondrous ability to make musicianship as accessible as the engaging way their voices draw listeners to them.

[4] Sarah Rodman of The Boston Globe gave a positive review of the album, remarking how the release "is a vibrant reminder of Nickel Creek's youthful promise and proof that it has plenty left to say.

[14] Clean Slate Music - Album review - https://web.archive.org/web/20140224023558/http://cleanslatemusic.org/2014/02/23/album-review-nickel-creek-a-dotted-line-nonesuch-records/ Allmusic - A Dotted Line - Nickel Creek - http://www.allmusic.com/album/a-dotted-line-mw0002629075/credits