Where can i find Trains from Pennsylvania to Las Vegas?

Las Vegas no longer has direct Amtrak rail service, it was discontinued in 1997. However Amtrak has a bus connection to Las Vegas. Here's a schedule:

Train 43 Pennsylvanian

Philadelphia, PA

- 30th Street Station

(PHL)

12:42 pm

25-OCT-08 Pittsburgh, PA

(PGH)

8:05 pm

25-OCT-0 9 Capitol Limited

Pittsburgh, PA

(PGH)

11:55 pm

25-OCT-08 Chicago, IL

- Union Station

(CHI)

8:40 am

26-OCT-0 5 California Zephyr

Chicago, IL

- Union Station

(CHI)

2:00 pm

26-OCT-08 Salt Lake City, UT

(SLC)

11:00 pm

27-OCT-08 8453 Bus

Salt Lake City, UT

(SLC)

8:30 am

28-OCT-08 Las Vegas, NV

- Bus Service

(LVS)

3:35 pm

28-OCT-08

As you can see, it'll take you 3 days to make the trip. You could also go to Los Angeles and bus back to Las Vegas.