We arrived 15 minutes earlier than scheduled.
I think it's too early to ask her out.
A tofu maker always wakes up early in the morning.
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of early? It's also early.
The reading for this word is the kun'yomi reading, which you did not learn when you learned the kanji. You have to remember the はや portion to be able read this word. In order to do that, here's a mnemonic:
You're fast! You're early! Your chop comes down onto your opponent's neck so quickly! As you chop him, you yell "はや!"