Atlanta's Matt Ryan rolled out and hit Tony Gonzalez for a 1-yard touchdown to tie the score just 30 second before halftime.
Washington took the first lead of the game with 11:13 left in the second quarter, when defensive end Ryan Kerrigan picked off Ryan in the backfield and returned it 26 yards to the end zone. It was Ryan's third interception of the season.
Ryan turned the ball over again on a fumbled snap with just under five minutes left in the half, but the Redskins could not take advantage of the mistake. The Redskins' long drive stalled in the red zone before Billy Cundiff missed a 31-yard field goal wide right. Atlanta took advantage of that miss to drive down the filed for the tying score.
Washington's Alfred Morris carried nine times for game-high 106 yards in the first half. Robert Griffin III completed six passes for 52 yards.
Ryan has completed 21 passes for 187 yards.
Both teams came into the Week 5 matchup after wins last week. The Falcons are currently one of the league's last remaining undefeated teams at 4-0. Washington is 2-2 entering Sunday's game.