Please try below and let me know if any query.
<?php if( get_field('packaging_details') || get_field('port') || get_field('lead_time')): ?>
<div class="prd-overview-list">
<h3>Packaging & Delivery</h3>
<ul>
<?php if( get_field('packaging_details') ): ?><li><p>Packaging Details</p> <p><span><?php the_field( 'packaging_details' ); ?></span></p></li><?php endif; ?>
<?php if( get_field('port') ): ?><li><p>Port</p> <p><span><?php the_field( 'port' ); ?></span></p></li><?php endif; ?>
<?php if( get_field('lead_time') ): ?><li><p>Lead Time</p> <p><span><?php the_field( 'lead_time' ); ?></span></p></li><?php endif; ?>
</ul>
</div><?php endif; ?>
Hope it will help you !