Jennifer Garner, Ben Affleck Reunite, Chat Happily Amid Boyfriend John Miller Absence

Jennifer Garner and Ben Affleck may have finalized their divorce last year and have moved on with different people, but they remain friendly with each other.

On Tuesday, Garner and Affleck, both 46, reunited to drop their kids off to school together in Brentwood. In photos released by Daily Mail, the "Alias" star and her ex-husband looked friendly as they walked side-by-side and chatted with each other.

For their school run, Garner donned a casual but still stylish look, wearing a plaid button-down top, skinny jeans and beige suede chelsea boots. The "Love, Simon" star styled her hair in a messy chignon and toted a brown handbag. She completed her look with dark sunglasses and was also spotted carrying a to-go coffee cup as she talked amiably with Affleck.

Affleck, on the other hand, looked dapper in a gray crew neck sweater, taupe blazer and black slacks. He paired his outfit with maroon sneakers and reflective sunglasses.

Garner and Affleck's two youngest children, 10-year-old Seraphina and 7-year-old Samuel, were also photographed heading to their class with the actress.

The exes' eldest child, 13-year-old Violet, wasn't spotted with her family during the school run.

Despite ending their marriage in 2015 and finalizing their divorce in October last year, Affleck and Garner have remained committed to co-parenting their children and supporting each other.

In fact, it was reportedly Garner who held an intervention for Affleck last year and urged him to enter rehab to get clean. According to TMZ, the "Peppermint" star even drove the actor-director to the Malibu facility herself so he could check in and get treatment.

Following their split, Garner has moved on with Cali Group CEO John Miller, whom she has been seeing for several months now. Rumors of the two tying the knot surfaced earlier this year, but a source told Entertainment Tonight that they weren't ready to jump into another marriage after their respective divorces.

"[Garner and Miller are] in a true honeymoon phase in their relationship and while they've spoken about a future together, neither of them are ready to plan a wedding or get engaged," the insider said. "Jen has no interest in jumping into marriage quickly. She only just solidified her divorce so right now she just loves all their time together.”

Meanwhile, the "Justice League" star seems to have reconciled with ex-girlfriend Lindsay Shookus as the two have been spotted hanging out often over the past few weeks.