Most domiciles post what hotels have what rate in their crew room. If not, ask around to commuters, usually there are one or two hotels that everyone uses. SkyWest has a directory online of all the crew hotels we use and what rates they offer employees for personal stays. As for other cities, just start calling the hotels near the airports. Some hotels give different rates to different airlines, but if you show up in uniform, they usually never ask what specific airline you work for.