Signal: Awards and nominations
| Year | Category | Subcategory | Info |
|---|---|---|---|
| 2016 | APAN Star Awards | Winner APAN Star Award | Top Excellence Actor in a Miniseries (Cho Jin-woong) |
| 2016 | APAN Star Awards | Winner Special Award | Best Writer (Eun-hee Kim) |
| 2016 | Asia Artist Awards | Winner Television/Film Award | Grand Prize (Daesang) (Cho Jin-woong) |
| 2016 | Baek Sang Art Awards | Winner Baek Sang TV | Best Drama |
| 2016 | Baek Sang Art Awards | Winner Baek Sang TV | Best Actress (Kim Hye-su) |
| 2016 | Baek Sang Art Awards | Winner Baek Sang TV | Best Screenplay (Eun-hee Kim) |
| Year | Category | Subcategory | Info |
|---|---|---|---|
| 2016 | APAN Star Awards | Nominee APAN Star Award | Top Excellence Actress in a Miniseries (Kim Hye-su) |
| 2016 | Asia Artist Awards | Nominee Television/Film Award | Best Celebrity Award, Actor (Lee Jehoon) |
| 2016 | Asia Artist Awards | Nominee Television/Film Award | Grand Prize (Daesang) (Kim Hye-su) |
| 2016 | Baek Sang Art Awards | Nominee Baek Sang TV | Best Director (Won Suk Kim) |
| 2016 | Baek Sang Art Awards | Nominee Baek Sang TV | Best Actor (Cho Jin-woong) |
| 2016 | Korea Drama Awards | Nominee KDF Award | Best Drama |
| 2016 | Korea Drama Awards | Nominee KDF Award | Best Writer (Eun-hee Kim) |
| 2016 | Korea Drama Awards | Nominee KDF Award | Best Director (Won Suk Kim) |