The New York City Subway Lines Project:
B Train (6th Avenue Express)

The B Train runs from Bedford Park Blvd in The Bronx to Coney Island in Brooklyn with an offshoot to 21st Street - Queensbridge in Queens and Roosevelt Island on weekends and evenings. It runs local in the Bronx and Manhattan until 59th Street where it becomes express through Stillwell Avenue in Brooklyn. It is a part of the Orange Line and while in midtown Manhattan it can be found on 6th Avenue (Avenue of the Americas), thus the name.

Station Information for the B Train is as follows:

The Bronx:

Bedford Park Blvd, Grand Concourse
Rush hours only.
Transfers: D
Bus and other connections: Bx1 Bx2 Bx26 W4 W20 W20X W21

Kingsbridge Rd, Grand Concourse
Rush hours only.
Bus and other connections: Bx9 Bx22 Bx26 Bx28

Fordham Rd, Grand Concourse
Rush hours only.
Transfers: D
Bus and other connections: Bx12 Bx24 Bx34 W60 W61 W62 W90

182 - 183 Sts, Grand Concourse
Rush hours only.

Tremont Av, Grand Concourse
Rush hours only.
Transfers: D
Bus and other connections: Bx36

174 - 175 Sts, Grand Concourse
Rush hours only.
Bus and other connections: Bx32

170 Street, Grand Concourse
Rush hours only.
Bus and other connections: Bx11 Bx18

167 Street, Grand Concourse
Rush hours only.
Bus and other connections: Bx2 Bx35

161 Street - Yankee Stadium, River Av
Rush hours only.
Transfers: 4
Bus and other connections: Bx1 Bx6 Bx13

Manhattan:

155 Street, 8 Avenue
Rush hours only.
Bus and other connections: M2 M10 Bx6

145 Street, St Nicholas Av
Weekdays: rush hours and midday only.
Transfers: A C D
Bus and other connections: M3 Bx19

135 Street, St Nicholas Av
Weekdays: rush hours and midday only.
Bus and other connections: Bx33

125 Street, St Nicholas Av
Weekdays: rush hours and midday only.
Transfers: A C D
Bus and other connections: M3 M18 M60 (LaGuardia Airport) M100 M101 Bx15

116 Street, 8 Avenue
Weekdays: rush hours and midday only.
Bus and other connections: M7 M10 M116

Cathedral Pkwy (110 Street), Central Park West
Weekdays: rush hours and midday only.
Bus and other connections: M3 M4 M18

103 Street, Central Park West
Weekdays: rush hours and midday only.

96 Stree, Central Park West
Weekdays: rush hours and midday only.
Bus and other connections: M96 M106

86 Street, Central Park West
Weekdays: rush hours and midday only.
Bus and other connections: M86

81 Street - Museum of Natural History, Central Park West
Weekdays: rush hours and midday only.
Bus and other connections: M79

72 Street, Central Park West
Weekdays: rush hours and midday only.
Bus and other connections: M72

59 Street - Columbus Circle, 8 Avenue
Weekdays: rush hours and midday only.
Transfers: A C D 1 9
Bus and other connections: M5 M7 M10 M30 M31 M57 M104

7 Avenue, 53 Street
Weekdays: rush hours and midday only.
Transfers: D E
Bus and other connections: M6 M7 M10 M104

47-50 Streets - Rockefeller Center, Av of Americas
All times except late nights
Transfers: D F Q
Bus and other connections: M27 M50

42 Street, Av of Americas
Except late nights.
Transfers: 7 D F Q
Bus and other connections: M42 M104

34 Street - Herald Sq, Av of Americas
Except late nights.
Wheelchair accessible.
Transfers: D F N Q R
Bus and other connections: M4 M6 M16 M34 Q32 PATH LIRR Amtrak NJTransit

W 4 Street - Washington Square, Av of Americas
Except late nights.
Transfers: A C D E F Q
Bus and other connections: M5 M6 M8 PATH

Broadway - Lafayette St, Houston Street
Except late nights.
Transfers: D F Q 6 (Downtown Only)
Bus and other connections: M1 M5 M6 M21

Brooklyn:

Grand Street, Chrystie St
Except late nights.
Transfers: D Q
Bus and other connections: M103

Pacific Street, 4 Avenue
Except late nights.
Transfers: 2 3 4 5 D M N Q R
Bus and other connections: B41 B45 B63 B65 B67 LIRR

36 Street, 4 Avenue
Transfers: M N R
Bus and other connections: B35 B70

9 Avenue, 39 Street
Bus and other connections: B35

Fort Hamilton Pkwy, New Utrecht Av

50 Street, New Utrecht Av
Bus and other connections: B11

55 Street, New Utrecht Av
Bus and other connections: B16

62 Street, New Utrecht Av
Transfers: M N
Bus and other connections: B9 B23

71 Street, New Utrecht Av

79 Street, New Utrecht Av

18 Avenue, New Utrecht Av
Bus and other connections: B1 B8

20 Avenue, 86 Street
Bay Parkway, 86 Street
Transfers: M
Bus and other connections: B1 B6 B82

25 Avenue, 86 Street
Bus and other connections: B1 B3 B4

Bay 50 St, Stillwell Av
Bus and other connections: B64

Stillwell Av-Coney Island, Surf Av
Transfers: D F N
Bus and other connections: B36 B64 B74

Queens/Roosevelt Island Offshoot:
(Pick up at 47-50 Streets - Rockefeller Center in Manhattan on weekends and evenings)

21 Street - Queensbridge, 41 Avenue
Weekday evenings and all weekend times except late nights.
Wheelchair accessible.
Bus and other connections: Q19A Q66 Q101 Q102 Q103

Roosevelt Island
Weekday evenings and all weekend times except late nights.
Wheelchair accessible.
Bus and other connections: Q102 Roosevelt Island Tram

Lexington Av, 63 Street
Weekday evenings and all weekend times except late nights.
Wheelchair accessible.
Bus and other connections: M101 M102 M103

57 Street, Ave of Americas
Weekday evenings and all weekend times except late nights.
Bus and other connections: M5 M7 M30 M31 M57