Date: 201703
Local time of day: 0001-0600
Location: ZZZ.Airport, US
Aircraft: EMB ERJ 170/175 ER/LR
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Cruise
Airspace: Class A ZZZ
ATC / advisory: Center ZZZ
Reporter organization: Air Carrier
Reporter function: Dispatcher
Second reporter function: First Officer
Anomaly: Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Fuel Issue
Detector: Person Flight Crew
When detected: In-flight
Contributing factors: Weather; Human Factors
Primary problem: Human Factors

Narrative: I planned this flight according to company flight planning procedures. The flight was delayed out of ZZZ due to winds and a one runway configuration resulting in lengthy taxi times. Flight departed just above min fuel. As a result I was giving this flight additional attention.  Shortly after this flight was airborne I had another flight enroute to ZZZ1 that made contact with me via ACARS concerning the fuel state. I ran numbers for that flight and determined that the flight had burned 700lbs more than planned and was getting a message upon calculation that 'Insufficient fuel onboard'. The determination was made to divert that flight to add more fuel. At this point my concern increased for the Aircraft X flight. It is a 3 hour flight so I was not overly concerned. I made arrangements for diverting the ZZZ1 flight and then directed my attention to the ZZZ flight. Also at this time the end of my shift was approaching. I requested the FOB (Fuel on Board) for this flight and ran the numbers at ISO. The numbers returned with the message 'Insufficient fuel onboard'. I do not remember exactly but 600-700 lbs under reserve at this point with approximately two hours of flight remaining. My relief showed up and I briefed them on the situation and advised them that a diversion was necessary due to the fuel remaining onboard. I also discussed the issue with the ZZZ1 flight diverting due to higher than planned fuel burn. I turned the desk over to the relieving dispatcher and while they were getting logged on the desk I informed the coordinator and the duty manager of the impending diversion. When I logged on the desk this morning I checked the flight and saw that it did not divert and landed with 1500 lbs. This is a reoccurring issue with the dispatcher that took over the flight not practicing effective flight following and flight management. I looked back at the ACARS communication between the flight and the dispatcher; it appeared that the dispatcher just resigned and accepted whatever the crew said. The crew appeared to have a case of get there-itis based on the communication as well. I can only do so much and expect that when flights are handed over to and accepted by another 'qualified' dispatcher that this type of situation does not occur.


Second narrative: 2 hr hour delay. Took off at min fuel FOB 13.5; once at cruise winds aloft were stronger than given out of the south at 180 knots. Winds died down in contact with dispatch the entire time. We talked about diverting but weather was good and no delays. Landed with 1.4 without incident.


Synopsis: ERJ-170 Dispatcher and First Officer reported that due to strong headwinds flight planned to divert; however; winds decreased and Crew proceeded to destination but landed with less than reserve fuel.