今天找到一个很不错的网站，上面有很详细的火车信息和open tour 的bus信息，始发时间可能不准，但是距离和路程时间大家可以参考下。
http://www.hotels-in-vietnam.com/hotels/Travel_Vietnam/traintime.html
Train Time Table
Train Station in Hanoi Train Station in Saigon Hue Railway Station
Add: 02 Bui Thi Xuan
Tel: +84 (54) 822 175
Hanoi Railways Station
Add: 120 Le Duan Street, Hanoi
Tel: +84 (4) 942 3697
Trains to the south and Beijing (via Dong Dang) for China. Thong Nhat Railway Station
Add: 01 Nguyen Thong Str., Dist. 3
Tel: +84 (8) 843 6528 Nha Trang Railway Station
Add: 17 Thai Nguyen Str.
Tel: +84 (58) 822 113
Tran Quy Cap Station
Tel: +84 (4) 942 3697
Trains to the north, including Lao Cai (near Sapa), Kunming (China) and the east. Da Nang Railway Station
Add: 33/25 Dien Bien Phu Str.
Tel: +84 (511) 822 020
Time table Hanoi - Lao Cai (Sapa)
Departure Time Arrival Time
SP1/ Royal Hanoi - Laocai 21:30 06:00
LC1 Hanoi - Laocai 22:00 07:00
LC3 Hanoi - Laocai 06:15 03:10
LC5/ Tulico Hanoi - Laocai 22:00 06:30
SP2/ Royal Laocai - Hanoi 20:50 05:00
LC2 Laocai - Hanoi 19:00 04:00
LC4 Laocai - Hanoi 10:20 08:10
LC6/ Tulico Laocai - Hanoi 21:15 06:00
Time table Hanoi - Ho Chi Minh city
E1 (30hrs) S1 (33hrs) S3 (39hrs) S5 (39hrs) S7 (39hrs) S9 (41hrs)
Arrival Departure Arrival Departure Arrival Departure Arrival Departure Arrival Departure Arrival Departure
Ha Noi - 23:00 - 19:00 - 19:50 - 12:50 - 14:40 - 15:30
Phu Ly - - - - - - - - - - - -
Nam Dinh - - 20:37 20:39 21:30 21:34 14:31 14:35 16:21 16:25 17:12 17:17
Ninh Binh - - - - 22:03 22:05 15:04 15:06 16:54 16:56 18:03 18:05
Bim Son - - - - - - - - 17:31 17:33 - -
Thanh Hoa - - 22:12 22:14 23:17 23:22 16:18 16:23 18:10 18:14 19:18 19:23
Vinh 3:59 4:02 0:34 0:42 2:05 2:20 18:54 19:09 20:37 20:52 22:05 22:20
Yen Trung - - - - - - 19:32 19:34 - - - -
Huong Pho - - - - - - - - - - - -
Dong Le - - - - - - - - - - - -
Dong Hoi 7:31 7:38 4:46 4:54 6:50 7:10 0:25 0:45 1:45 2:05 3:16 3:36
Dong Ha - - 6:37 6:40 9:35 9:38 2:29 2:31 3:57 4:00 5:27 5:30
Hue 10:18 10:23 7:50 7:58 10:57 11:12 3:46 4:01 5:19 5:34 6:48 7:03
Da Nang 12:47 13:02 10:32 10:47 14:54 15:14 6:53 7:13 8:53 9:13 11:41 12:01
Tam Ky - - 12:06 12:08 16:42 16:44 8:41 8:43 10:48 10:50 - -
Quang Ngai - - 13:17 13:19 17:51 17:55 10:02 10:07 11:58 12:02 15:41 15:47
Dieu Tri 17:55 18:02 15:57 16:05 20:50 21:10 13:22 13:42 14:58 15:18 18:45 19:05
Tuy Hoa - - 17:49 17:51 23:05 23:07 15:34 15:37 17:13 17:16 20:55 20:58
Nha Trang 21:56 21:59 19:55 20:03 1:30 1:45 17:53 18:08 20:18 20:33 23:21 23:36
Thap Cham - - 21:42 21:45 3:27 3:32 19:50 19:53 22:18 22:21 1:32 1:37
Muong Man 1:24 1:25 0:08 0:09 6:11 6:14 23:12 23:15 2:02 2:12 4:42 4:45
Bien Hoa - - - - - - - - 5:14 5:1
HoChiMinh city 5:00 - 4:00 - 10:20 - 3:25 - 6:00 - 8:40 -
Time table Ho Chi Minh city - Hanoi
E2 (30hrs) S2 (33hrs) S4 (39hrs) S6 (39hrs) S8 (39hrs) S10 (41hrs)
Arrival Departure Arrival Departure Arrival Departure Arrival Departure Arrival Departure Arrival Departure
HoChiMinh city - 23:00 - 19:00 - 19:50 - 12:50 - 14:40 - 15:30
Bien Hoa - - - - - - - - 15:25 15:27 - -
Muong Man 2:09 2:10 22:34 22:35 23:57 0:12 16:49 16:52 18:40 18:43 19:29 19:32
Thap Cham - - 1:08 1:10 3:01 3:04 19:25 19:28 21:14 21:17 22:50 22:53
Nha Trang 5:20 5:23 2:40 2:48 4:39 4:54 21:09 21:24 23:16 23:31 1:02 1:32
Tuy Hoa - - 4:41 4:43 7:46 7:48 23:49 23:51 2:09 2:11 3:58 4:01
Dieu Tri 8:53 9:00 6:21 6:29 9:40 10:00 1:05 2:10 4:03 4:23 6:42 7:02
Quang Ngai - - 8:57 8:59 13:19 13:2 5:06 5:09 7:14 7:17 9:59 10:04
Tam Ky - - 10:01 10:03 14:49 14:51 6:17 6:19 8:22 8:24 - -
Da Nang 14:01 14:16 11:29 11:44 16:23 16:43 7:57 8:17 9:59 10:19 14:36 14:56
Hue 16:42 16:47 14:40 14:45 19:50 19:55 11:39 11:44 13:40 13:45 18:03 18:08
Dong Ha - - 16:00 16:03 21:14 21:17 13:07 13:12 15:09 15:12 19:28 19:33
Dong Hoi 19:34 19:41 17:48 17:56 23:08 23:28 15:04 15:24 17:04 17:24 21:26 21:46
Dong Le - - - - - - 17:12 17:14 - - 23:42 23:50
Huong Pho - - - - - - 18:37 18:39 - - - -
Yen Trung - - - - - - 19:48 19:50 - - - -
Vinh 23:31 23:34 22:02 22:10 4:27 4:42 20:17 20:39 22:56 23:11 3:19 3:34
Thanh Hoa 1:50 1:55 0:23 0:25 7:12 7:17 23:20 23:25 2:19 2:23 6:07 6:12
Bim Son - - - - - - - - 3:00 3:02 - -
Ninh Binh - - - - 8:29 8:31 0:45 0:56 3:39 3:41 7:23 7:59
Nam Dinh - - 2:18 2:20 9:02 9:07 1:28 1:32 4:13 4:16 7:54 7:59
Phu Ly - - - - - - 2:08 2:10 4:52 4:54 - -
Ha Noi 5:00 - 4:00 - 10:50 - 3:25 - 6:00 - 8:40 -