Please be aware that this on 4th round FA Cup day. There is engineering works to Horwich Parkway(outside the ground) from Preston, Manchester and Wigan, resulting in rail replacement services taking between 60 and 90 minutes depending on what station you travel to. Euston to Wigan appears to be the easiest way with numerous trains to and from London with a fare of £20 single before railcard discounts. Wigan is only 7 miles from the ground so will be about 20 minutes in a cab, presumably a maximum of £20 each way. There is also a 575 bus that takes you to within 10 minutes of the ground(there are many buses running), this of course is a cheaper option if only a couple of you.
Euston out 8.43 and return Wigan 19.29 I'm on these trains if anybody wants to stalk me. The Anvil in Wigan behind Wallgate station is a cracking boozer, you can find me in there as well before and after the game.