From [the Stargate Wiki page about the bridge](https://stargate.wikia.com/wiki/McKay/Carter_Intergalactic_Gate_Bridge):

> Travel time using the bridge is approximately 30 minutes, a drastic reduction from the weeks-long journey required via ship.

and

> a space station has been constructed at the midpoint between the two galaxies

So travel time to the station, from either end, would be around 15 minutes by stargate.