Trying to figure out how to do this on UA...

Sat. Sep. 8 UA 1531 ABQ-DEN 7:50p- 9:02p
Sat. Sep. 8 UA 1846 DEN-IAD 11:59p- 5:10a+1
Sun. Sep. 9 UA 1719 IAD-MCO 9:30a-11:39a

Sun. Sep. 9 UA 1972 MCO-IAD 12:20p- 2:27p
Sun. Sep. 9 UA 7632 IAD-LGA 3:30p- 4:40p
Sun. Sep. 9 UA 411 LGA-DEN 6:30p- 8:55p
Sun. Sep. 9 UA 707 DEN-ABQ 9:55p-11:07p

6087 status miles. This prices at $327.25, considering IAD a stopover because the first flight out doesn't leave until 9:30 a.m.: ABQ-IAD (WE14ONQ1) + IAD-MCO (WRA7NX) + MCO-IAD (WE14A1N)

United's web site prices at $311.34, using a WE14ONW1 fare basis for ABQ-IAD.

If the 4-hour connection rule were not enforced, this would price at $142.25 (2.37¢/status mile).

Of course, something like this works:

Sat. Sep. 22 UA 1580 ABQ-DEN 10:25a-11:37a
Sat. Sep. 22 UA 476 DEN-LGA 12:35p- 6:22p
Sat. Sep. 22 UA 1151 LGA-IAD 7:25p- 8:53p
Sat. Sep. 22 UA 977 IAD-MCO 9:50p-11:56p

Sun. Sep. 23 UA 1502 MCO-IAD 7:55a-10:02a
Sun. Sep. 23 UA 7630 IAD-LGA 11:00a-12:10p
Sun. Sep. 23 UA 1103 LGA-DEN 2:35p- 4:53p
Sun. Sep. 23 UA 465 DEN-ABQ 5:52p- 7:04p

$145 including taxes. Fare basis WE14A1N: 14-day advance purchase, 1-day minimum stay, travel any day of the week through Jan. 11, 2002. No blackout dates!

6754 status miles (2.15¢/status mile). With a 100% 1P/1K Premier bonus and 1000-mile online booking bonus, under one cent per mile.

What do you do for eight hours in the middle of the night?

I did post a ABQ-TPA itinerary @$145, but it only yields 5524 status miles and 6 segments.