acid23m

$data = AddressClassificator::find()
            ->select('id, iata')
            ->with(['addressClassificatorTranslates' => function($query) {
                $query->addSelect(['id', 'name', 'country', 'city']);
                $query->andWhere(['lang' => Yii::$app->language]);
            }])
            ->asArray()
            ->all();

SELECT `id`, `name`, `country`, `city` FROM `addressClassificatorTranslate` WHERE (`lang`='ru-RU') AND (`addressClassificator_id` IN ('1', '2'))

SELECT `id`, `iata` FROM `addressClassificator` ORDER BY `iata`

[
    0 => [
        'id' => '1'
        'iata' => 'AAA'
        'addressClassificatorTranslates' => []
    ]
]