ga837The flht GA837 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. What is the On-Time Performance (OTP) of Garuda Indonesia Flht GA837 Singapore to Jakarta? The On-Time Performance Rating for Garuda Indonesia Flht GA837 is 5 5 stars.Flht status, tracking, and historical data for Garuda Indonesia 837 (GA837GIA837) including scheduled, estimated, and actual departure and arrival times.