at FedEx...
To answer this question, you'd almost need to post a bid pack. Each plane has different schedules. There are day schedules, afternoon schedules, and night schedules. There are trips around the world, or 1 hour flights.
Many, many different schedules - that is really the beauty.
This is my month as a 50% senior 727 S/O:
Go in at 1440. Hit the plane shortly there after. Preflight, push hopefully by 1540. 1+10 from Memphis to Wichita. 5+55 or so on the gound. Go to the hotel, eat dinner, workout, relax, put game face back on. 2200 back in bus - head to airport. Preflight, push 1+05 back to Memphis. Done around 0030.
This month, I basically do this Tue-Fri week 1, 2, and 4. Off week 3 entirely.
This is NOT what every 727 S/O is doing at FedEx. Some trips are better, some are worse. There are double-dead head trips with week on/week off. 4-hour flights, 4 leg trips, nights, days and every other possibility.
At Fed Ex, the flights boild down to support sorts. We have a day sort, where planes land at Memphis and other hubs between sun-up and noon. After the day sort, the planes launch in the early to mid afternoon. We also have a night sort where planes land from roughly 2300 to 0145 or so. After the sort, the planes launch somewhere around 0300 to sun-up.
With the above in mind, your standard domestic trips can go like this:
Launch in the afternoon, land by dinner time, layover, get up early and get back to the Hub shortly after sun-up.
OR: Launch in the afternoon, land by dinner, get a hotel (maybe), layover (30 minutes to 6 hours), return to hub around 2300-0145. (This is called an Afternoon Out-N-Back or PM out-n-back)
OR: Launch after the night sort (O'dark'30) land by sun-up, sleep in hotel during the day, get up, eat dinner, fly back to hub for night sort.
OR: Launch after the night sort (same as above) land by sun-up, turn airplane rather quickly, fly back to hub after sun-up and before noon. (This is called an AM Out-N-Back).
OR: fly a million other international combinations.
Hopefully that provides a LITTLE insight.
Goose17