Yes, sometimes they do, as explained at
http://Help.KVSTool.com/#Factors:
[KVS Availability Tool 6.0.3/Diamond - ITA: Awards-Upgrades/X1]
Code:
DAY Dayton James Cox Dayton Intl OH US [KDAY]
BKK Bangkok Intl TH [VTBS]
WED 13 Apr 2011
Carrier Flight From Depart To Arrive A/C St Availability
--------- ------ ---- -------- ---- -------- --- -- -----------------------------------------------------------------------------------
UA/9N 7727 DAY 06:00 ORD 06:13 ER4 0 XY9 NY9
-> UA 881 ORD 13:04 BKK 23:05 +1 744 1 XY0 NY0 XF0 NF2 XC0 NC0
[KVS Availability Tool 6.0.3/Diamond - ITA: Awards-Upgrades/X1]
Code:
ORD Chicago O'Hare Intl IL US [KORD]
BKK Bangkok Intl TH [VTBS]
WED 13 Apr 2011
Carrier Flight From Depart To Arrive A/C St Availability
--------- ------ ---- -------- ---- -------- --- -- -----------------------------------------------------------------------------------
UA 881 ORD 13:04 BKK 23:05 +1 744 1 XY0 NY0 XF0 NF2 XC0 NC1
Ah OK. That probably explains it then. I was searching for individual segments. Did not understand that these would change availabilities when combined.
Thanks for your help. So much to learn...LOL