Comparison between train and bus from Narita to Komae:
From Haneda to Komae:
If you are in hurry, trains are faster but there are many transit points and stairs. It is not recommended to take a train especially in rush hours with a large luggage or children. It takes little more time and cost but an airport limousine bus arrives at the Shin Yurigaoka Odakyu Station where only 8 stops from the Komae
station and only one transit. This bus has a toilet also.
https://www.limousinebus.co.jp/en/bus_services/haneda/index : the last bus departs around 21:00. check carefully
1. Haneda to Shin Yurigaoka: 1,340 yen then 180 yen for the Odakyu Line
2. Narita to Shin Yurigaoka : 3,100 yen then 180 yen for the Odakyu Line
Also From Haneda to Komae is not so far. You may consider to take a taxi van if you have a family. It may costs 12,500 yen (about US$100) for 7 passengers. check this site: http://www.earthjapan-jt.com/price/
If you can arrive at Komae station between 8am to 10pm a staff member can meet you and show you to the guest house so that you don't get lost. But please follow these important steps. 1. Before you arrive in Tokyo you need to prepare your train route and timetables from Narita or Haneda to Komae station. So that a staff member can meet you and plan their day please provide an estimated time of arrival (ETA) at Komae station. For example: 7 - 8pm or 5 - 6pm. 2. When you arrive at Komae station you need to call either from a public pay phone which is available at the north side of Komae station. The staff number to call is 070 3630 6391. A staff member can meet you and show you to the guest house. Or if you can prepare your own internet data or wifi. please call using the skype phone app on your mobile phone. 3. Meeting location is the McDonalds at Komae station exit.
When you check in, your keys are on your table inside of your room. Also when you check out please don't lock the door and put the keys back in the place you fond them. Thank-you From Kaz and his staff
Tokyo Train Metro Systems: http://www.jreast.co.jp/e/routemaps/pdf/RouteMap_majorrailsub.pdf
Metro (Subway) Systems: http://www.tokyometro.jp/lang_en/index.html
JR: Japan Railroad : http://www.jreast.co.jp/e/nex/index.html
Airport Bus: https://www.limousinebus.co.jp/en/