Transportation
When you arrive at Japan, many people provably use Narita International Airport or Kansai International Airport.
How to get the Tokyo downtown.
Narita Airport is located 60 km to the east of downtown Tokyo.
From Narita Airport to the center of Tokyo, you can use various means of transportation.

From the first floor where you arrive at, you can use a taxi or a bus.
From the first floor under the ground, you can use JR line or Keisei line.
Narita Express : Japan Railways (JR)
Non-stop to Tokyo Station. Some trains go to Shinjuku, Ikebukuro, and Yokohama.
To Tokyo station about 60 min, 2,940yen
Sobu Line Rapid Train : Japan Railways (JR)
At Tokyo, the Sobu Line becomes the Yokosuka Line for Yokohama and points beyond in the Miura peninsula.
To Tokyo Station about 90 min, 1,280 yen
Skyliner : Keisei Railways
To Keisei-Ueno Station. Stops at Nippori Station.
About 60 min, 1,920yen.
Keisei Limited Express : Keisei Railways
To Keisei-Ueno Station.
About 75 min, 1,000yen
When you arrive at Narita Airport by train, use the JR or Keisei line.
At Narita Airport, each passenger terminal has its own railway station (Airport Terminal 2 Station ・Narita Airport Station)
If your airline uses Terminal 1 > Narita Airport Station
If your airline uses Terminal 2 > Airport Terminal 2 Station

Limousine Buses
The bus runs every 5-30 minutes every day. you can purchase the ticket in an arrival lobby of the first floor.
The limousine bus departs from Narita Airport and you can go to the main place of the metropolitan area.
You can go to the entrance of the main hotel of Tokyo from the front of the Narita Airport arrival lobby by the bus.
Kansai International Airport (Osaka)
Kansai International Airport is located in southeast Osaka Bay, 5 km off the coast and about 60 km. from JR Shin-Osaka Station.
Osaka
To JR Shin-Osaka Station
JR Limited Express Haruka : About 50min, 2,980yen.
JR Rapid Train : About 75min, 1,320yen.
To JR Osaka Station
JR Rapid Train : About 65min, 1,160yen
Airport Bus : About 60min, 1,300yen
To Nankai Namba Station
Nankai Railway Limited Express Rapid : 35min, 1,400yen
Express : 45min, 890yen
To Osaka Airport (Itami)
Airport Bus : 80min, 1,700yen
Kyoto
To JR Kyoto Station
JR Limited Express Haruka : 75min, 3,490yen
JR Rapid Train : 95min, 1,830yen
Airport Bus : 105min, 2,300yen
Kobe
To JR Sannomiya Station
JR Rapid Train : 90min, 1,660yen
Airport Bus : 75min, 1,800yen

Railway Services
The Japanese railway system gets the evaluation of accuracy and high safety.
When you get on a train, the railway fares are different depending on a seat type and movement distance.
An additional charge is necessary for the types of the seat such as a limited express, an express, a green car (a first class), the sleeper train.

You can purchase the ticket of short distance from the ticket office of each station or a ticket vendor machine.
It is necessary for your ticket casts it into a machine and receives it or a person in charge to push the stamp it, and to take the ticket with you to the destination.
Most trains stop at late-night around 12:00.

Bullet train (Shinkansen)
There are some routes to the Shinkansen.
The Tokaido Sanyo Shinkansen links Hakata to Tokyo, and it is the one of the routes that many tourists use.
A type of the Shinkansen
There are three types of Tokaido-Sanyo shinkansen: Nozomi, Hikari, and Kodama.
Each type of shinkansen stops at different stations.
For instance, Nozomi stops at Shinagawa, Shin-Yokohama, Nagoya, Kyoto, and Shin-Osaka respectively between Tokyo and Shin-Osaka.
Hikari stops at different stations in addition to the ones that Nozomi stops at (stations for stops differ for each train).
Kodama stops at all stations (16 stations between Tokyo and Osaka).