経由 - how would I use this in a sentence?

Question

While learning vocab using the kanji 由、I came across the word 経由 which is translated on jisho.org as:

Adverbial noun
1. through; by way of; via​

Suru verb
2. to go via; to go by way of​

This left me confused as to the difference between this word and the particle で and whether it can be replaced by or used with this particle. If anyone could enlighten me to a context in which this word would be used and a few sentence examples, I would be very grateful!

Answer 1

経由 directly follows a noun representing a place and works like a no-adjective as a whole.

• 東京駅経由の電車に乗る。
• 上野駅に東京駅経由で行った。
• この電車は東京駅経由です。
• 東京駅経由なら安くなります。

And it works as a prefix-like noun meaning "intermediate" or "transit (point)".

• 経由地
• 経由点
• 経由駅

It also works as a suru-verb meaning "to go through/via ～". It takes を.

• 東京駅を経由して上野に向かいます。
• 東京駅を経由します。

You can ask a transit point like this:

• どこを経由して行きますか？　どの駅を経由して行きますか？
• どこ経由で行きますか？ 何駅経由で行きますか？ (less formal)