United has also had a history of running wide bodies on domestic routes.
For a LONG time..
ORD - CLE 2 DC10S
ORD - DTW 2 - 3 DC10S
ORD - IND 767 300ER
ORD - BWI 2 DC10S, NOW 767-300S
DEN - COS multiple DC10s
IND - DEN now gets a 757 (if it helps.. heh)
Also, the FL routes got a ton of service.
ORD - TPA, MCO, MIA consistently saw DC10s and 767300s on them
These are just the few I can remember for United........
Delta has a TON, i mean a TON of L1011s and 767s from ATL to cities throughout all of Florida.
Vegas -- need we list them all?? heh
TWA has also had a history of throwing the old L1011s to places like Orlando, Vegas, etc during the peak seasons.. but they're gone