If you want to rename the labels in WP Travel Filter Widget then, WP Travel plugin provides the feature which allows you to modify/rename the labels available in WP Travel Filter widget using filter code as per your requirement.

To rename the labels available in WP Travel Filter Widget, please add following given filter code in functions.php file of your child theme.

function customized_strings( $strings ) {
 $strings['trip_type'] = __( 'Your Trip type', 'wp-travel' );
 $strings['trip_duration'] = __( 'Your Trip duration', 'wp-travel' );
 $strings['location'] = __( 'Your Location', 'wp-travel' );
 $strings['keyword'] = __( 'Your keyword', 'wp-travel' );
 $strings['price_range'] = __( 'Your price range', 'wp-travel' );
 $strings['fact'] = __( 'Your fact', 'wp-travel' );
 $strings['price'] = __( 'Your price', 'wp-travel' );
    return $strings;
}
add_filter( 'wp_travel_strings', 'customized_strings' );

For detail assistance regarding creating child theme, please refer link.

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