Here are a few options for a WordPress post tag description for “國內航班” (Domestic Flights) in Traditional Chinese, with varying nuances:

**Option 1: Concise & General**

* **Description:** 關於台灣及其他國家國內航線的資訊，包括航班時間、票價、機場等。 (Information about domestic flights within Taiwan and other countries, including flight schedules, fares, and airports.)

**Option 2: Focus on travel planning**

* **Description:** 規劃您的國內旅行？在這裡查找國內航班資訊，助您輕鬆安排行程。 (Planning your domestic travel? Find domestic flight information here to help you easily arrange your trip.)

**Option 3: Focusing on news and updates**

* **Description:** 國內航班的最新資訊、新聞和優惠，幫助您掌握航班動態。 (The latest information, news, and deals on domestic flights to keep you informed.)

**Option 4: Focusing on simplicity and practical usage**

* **Description:** 快速查找國內航班。時刻表、票價、行程規劃，一站式解決。(Quickly find domestic flights. Schedules, fares, itinerary planning, all in one place.)

**Choosing the best option depends on the overall theme and content of your website.** Consider:

* **Your audience:** Who are you trying to reach with this tag?
* **The typical content:** What kind of posts will be tagged “國內航班”?
* **Your goals:** Are you trying to inform, sell, or simply organize your content?

I recommend selecting the option that best reflects your website’s purpose and the type of information you plan to highlight. Good luck!