I had my chicks come from Ohio to Vermont ... our hatchery didn't provide a tracking number. They shipped on Monday and I got them Tuesday morning at 7:15am.
The downside to USPS ... for me ... was the box had been put upside down at some point (not sure whether intentionally or accidently), but it has caused us some severe loss ... losing 8 out of 22 chicks within the first 48 hours (5 within the first 24 hours).
I figured that if shipping chicks was good enough for Martha Stewart it would have been good enough for me.
This has been a rough first experience for our family.
I wish yours all the best in their travels.
Scott