Why is it die Airline?

Airline ends in -ine, and almost all nouns ending in -ine are feminine: in a German dictionary, 93% of them take die.

All nouns ending in -ine
Sense 1
die

Meaning

[1] Company that promotes passengers by plane

[1] Unternehmen, das Passagiere per Flugzeug befördert

Examples

[1] The airline is in the critic due to insufficient safety standards

[1] Die Airline steht wegen nicht ausreichender Sicherheitsstandards in der Kritik.

Declension

1 Singular Plural
Nominativ die Airline die Airlines
Genitiv der Airline der Airlines
Dativ der Airline den Airlines
Akkusativ die Airline die Airlines

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary