Yes, you can bypass the front entrance by taking the monorail when you're at the Disneyland Hotel. The Disneyland Monorail has a station located in the Downtown Disney District, which allows guests with valid theme park admission to skip the Main Entrance and travel directly to Tomorrowland inside Disneyland Park[2]. This entrance is particularly convenient for those staying at the Disneyland Hotel, as it drops you off right in the middle of the action[4].
To use this entrance, you can board the monorail at the Downtown Disney District station. The monorail operates on the same schedule as Disneyland Park, so you can plan your visit accordingly[1]. Additionally,
if you have early entry privileges, you can board the monorail at 7:30 a.m. to get a head start on your day[1].It's worth noting that while you don't need to be staying at an on-resort hotel to use the monorail entrance, you do need to be staying on resort to board during early entry[1].
Citations:
[1] https://www.reddit.com/r/DisneyPlanning/comments/18dab5h/monorail_entrance_question/
[2] https://disneyland.disney.go.com/attractions/disneyland/disneyland-monorail/
[3] https://plandisney.disney.go.com/question/first-entrance-day-monorail-disneyland-staying-paradise-538025/
[4] https://plandisney.disney.go.com/question/learned-monorail-park-disneyland-hotel-podcast-tell-time-511360/
[5] https://plandisney.disney.go.com/question/hellowe-visiting-disneyland-first-time-beginning-june-569810/
