How to say “Luckily, passport control was well signposted; we found it straight after leaving the plane.” in Japanese

In Japanese

飛行機(ひこうき)を降(お)りてすぐ出入国審査場(しゅつにゅうこくしんさじょう)に着(つ)けたよ。案内表示(あんないひょうじ)が分(わ)かりやすくて助(たす)かった。

Hikōki o orite sugu shutsunyūkoku shinsajō ni tsuketa yo. Annai hyōji ga wakariyasukute tasukatta.