excess baggage

literally uncountable idiomatic

(literally, travel) Luggage which exceeds the allowable size or weight (as for an airline flight or train trip), and for which an extra fee must therefore be paid.

Japanese Meaning

許容されるサイズまたは重量を超えた旅行用の手荷物（追加料金が必要となる荷物） / 航空便や鉄道などの定められた制限を超過した荷物

What is this buttons?

Google Translation / DeepL Translation

チェックインカウンターに着いたとき、航空会社の係員に私の超過手荷物には追加料金がかかると言われました。

Details

Sense（1）

(literally, travel) Luggage which exceeds the allowable size or weight (as for an airline flight or train trip), and for which an extra fee must therefore be paid.