Away fans will be able to pay at the East Stand turnstiles at £16 for adults and £11 for seniors and U16s.
Match tickets are available from the WHUFC ticket office until 14:30 on 31st December.
Supporters are able to purchase tickets in person or order on 0870 112 2700 with a credit card and collect tickets from Wigan on the day.
Coach travel is available until this time as well and costs £20 for adults and £18 concessions.
Coaches depart Upton Park at 08:30.
Whilst the WHUFC ticket office will be closed on Friday the 1st, 2nd, and 3rd of January Wigan Athletic have now offered to accept credit card bookings from away supporters on 2nd January.
Hammers fans will be able to book tickets on the Friday between 9am and 5pm on 0870 11 22 552 - tickets will then be left for collection at the JJB stadium on matchday.
So far 2,400 Hammers fans are travelling; Alan and the team really appreciate such support and are sure you will make yourselves heard on the day.
The club apologise for any conflicting information previously given on Wigan's advice.