noun
leading to Tokyo; bound for Tokyo
Used on transportation signs, tickets, and schedules to indicate a route or service heading toward Tokyo. Not used as a general adjective.
この電車は至東京です。
This train is bound for Tokyo.
切符には「至東京」と印刷されていた。
The ticket was printed with 'leading to Tokyo'.
Compound of 至 (し, 'to; leading to') and 東京 (とうきょう, 'Tokyo'). The reading いたる is the classical verb form, but here it functions as a prefix-like element.