Sources confirmed to Entertainment Tonight that Benoist and Wood are a couple after the pair, who play Supergirl and Mon-El on The CW series, were spotted Monday in Vancouver, B.C.
Benoist was all smiles as she and Wood walked their dogs in the chilly Canadian weather. The couple were seen together at Los Angeles International Airport the day before.
Word of Benoist's new romance follows her split from husband Blake Jenner. The actress filed for divorce from her former Glee and Supergirl co-star in December after three years of marriage.
"The distance was an issue, things weren't working," a source told Us Weekly at the time. "It's amicable and mutual."
Supergirl is in its second season, and airs Mondays at 8 p.m. ET. Benoist will also appear in a special Supergirl and The Flash musical crossover episode Tuesday at 8 p.m. ET on The CW.
"It's going to be quite a spectacle," Candice Patton, who plays Iris West on The Flash, told E! News. "I think there's a lot for fans to get excited about."
"It felt good to put on the dancing shoes, so to speak, and literally," Benoist added. "It was so fun to step into different skin, almost ... being in this joyful music-filled world is really great."