Is accepting Jesus the only way for people to get to heaven? (John 14:6)

Yes. The Bible clearly identifies Jesus as the only means of salvation (Jn 14:6; Ac 4:12; Php 2:9–11). Believing in Jesus and his unique work (Ac 2:37–39; 16:31; Ro 10:9) is the only way to gain access to God’s forgiveness. No number of good deeds can earn a person an eternal reward. No other faith system leads people to the one true God. Some people chafe at such an exclusive stance, but the words of Jesus and the apostles leave no other option (Ac 4:12; 1Ti 2:5).

Taken from NIV Quest Study Bible