Is there a 622 677 689 bus at Zhongshan Gate in Hedong District, Tianjin?

None of the three trains you mentioned has Zhongshan Gate. You need to reverse the car.

Scheme 1 (about 3 1 station)

Take bus No.668/673 at Zhongshan Gate to Kunlun Beili/Kunlun Li/Kunlun Community, and transfer to bus No.677 to the bus stop of Airport Processing Zone.

Option 2 (about 3 1 station)

Take bus No.656 at Zhongshan Gate to Wanmingyuan, and transfer to bus No.677 to the bus stop of Airport Processing Zone.

Option 3 (about 3 1 station)

Take bus No.668/673/92 at Zhongshan Gate to Yueyahe South Road, and transfer to bus No.677 to the bus stop of Airport Processing Zone.

Scheme 4 (about 32 stops)

Take bus No.856/905 at Zhongshan Gate to Huabei Hospital, and transfer to bus No.689 to the bus stop of Airport Processing Zone.

Option 5 (about 32 stops)

Take bus No.668/673 at Zhongshan Gate to Laoshan Road/Tianshan Road/Xiangshan Road, and transfer to bus No.677/677 (interval) to the bus stop of Airport Processing Zone.

Scheme 6 (about 32 stops)

At Zhongshan Gate, take bus No.668 to Panshan Road/Song Feng Xili, and transfer to bus stop of Airport Processing Zone at bus No.677/677 (interval).

Scheme 7 (about 32 stops)

Take bus No.668 at Zhongshan Gate to Tianshan North Road and transfer to bus No.622/677/677 (interval) /689 to the bus stop of Airport Processing Zone.

Scheme 8 (about 33 stops)

Take bus No.30/656 at Zhongshan Gate to Changzhou Road/Zengchan Road/Zhengyi Avenue, and transfer to bus No.622 to the bus stop of Airport Processing Zone.

Scheme 9 (about 34 stops)

Take bus No.905 at Zhongshan Gate to Nanheng Street, and transfer to bus No.689 to the bus stop of Airport Processing Zone.

Scheme 10 (about 35 stations)

Take bus No.668/673 at Zhongshan Gate, get off at Laoshan Road, walk to Laoshan Road (Kunlun Road) and transfer to the bus stop of airport processing zone.

Scheme 1 1 (about 37 stations)

Take bus 17 /65 1 at Zhongshan Gate to the Stomatological Hospital, and then transfer to bus 689 to the bus stop of Airport Processing Zone.

Scheme 12 (about 38 stations)

Take bus No.656 at Zhongshan Gate to Runyuan, and transfer to bus No.622 to the bus stop of Airport Processing Zone.