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Best flat rate shipping plugins for WordPress

The most popular flat rate shipping plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Flat Rate Shipping Method for WooCommerce leads with 5K+ active installs, ahead of PI Advanced Flat rate / Conditional shipping for WooCommerce (2K+) and Advanced Shipping Rate Builder (50+). All 5 plugins tagged “flat rate shipping” are below, with figures from WordPress.org that update every day.

Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.

Research this niche or see all plugins.

Top 5 flat rate shipping plugins

  1. 1.
    Flat Rate Shipping Method for WooCommerce

    The most installed flat rate shipping plugin, with 5K+ active installs. Rated 4.2 from 76 reviews, updated 2 weeks ago.

  2. 2.
    PI Advanced Flat rate / Conditional shipping for WooCommerce

    2K+ active installs. Rated 4.9 from 58 reviews, updated 2 days ago.

  3. 3.
    Advanced Shipping Rate Builder

    50+ active installs. No reviews yet, updated 1 month ago.

  4. 4.
    Per Product Flat Rate Shipping for WooCommerce

    40+ active installs. Only 3 reviews so far, last updated 2 years ago. Tested only up to WordPress 6.5.14.

  5. 5.
    Free Shipping Kit

    Fewer than 10 active installs. No reviews yet, updated 3 months ago.

All 5 plugins tagged “flat rate shipping”