Rt Revd Dr Martin Warner described the service as an "important moment" for those touched by the tragedy on August 22.
Relatives of those who lost their lives when a vintage Hawker Hunter jet crashed onto the A27 in West Sussex were among those attending the invitation-only ceremony.
Uniformed firefighters, police officers, paramedics and volunteers also turned out for the hour-long service at Lancing College's Gothic chapel, overlooking the crash site.
Dr Warner told the service: "We are gathered here in this college chapel to remember before God those who died and those who were injured in the Shoreham air crash on Saturday August 22.
"We give thanks for their lives and hold them in our prayers. We pray for all who mourn, for all who are rebuilding their lives, and we give thanks for those who shared - often at great cost to themselves - in the work of rescue and support."
He praised the police, firefighters, paramedics, doctors and nurses, and the clergy and faith leaders who helped in the aftermath of the disaster.
The crash happened when the 1950s plane failed to pull out of a loop-the-loop manoeuvre during the Shoreham Airshow and plummeted onto the busy A27.
The names of the victims were read out ahead of a minute's silence at 1.22pm, the exact time of the crash. Each family lit a candle to be placed on the chapel's altar.
Premier's Rick Easter witnessed the incident and at the time said: "I witnessed the events from the flight line and have been left completely stunned and shocked. I have never seen anything like this before in all my years as an aviation enthusiast.
"My heart goes out to the families who have lost loved ones and to those who have been injured including the pilot of the Hawker Hunter.
"The events will always stay with me."