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Flight Number Question
"Bob" wrote in message ... Had an interesting experience yesterday flying from DEN to ORD. Due to weather at ORD, we were put into a hold pattern over Kansas City for about 40 minutes. At that time, the captain turned on Channel 9 so we could listen in. We were United 942 but our call sign to ATC was different, United 8735 (or something similar). Why would we have a different call sign from our flight number? By ICAO standards, any flight in the 8000 series is considered an "extra" or "special" flight segment. (Can't find a table online that explains what different "blocks" of flight numbers are reserved for). UA often uses 8xxx flight numbers on a domestic segment of a flight that continues internationally with a change of planes. In your specific case, UA942 is a 772 from DEN-ORD and a 763 ORD-CDG. As someone else posted, if the DEN-ORD leg is late and they depart the ORD-CDG flight (which you said actually happened), there will be two UA942 flights in the air simultaneously. To prevent this from happening, airlines will assign a 8xxx flight number if a delay seems likely. In UA's case they seem to do it as a matter of practice. Your recovery leg from Rockfield to ORD was also a "special" flight and got an 8xxx number. You will often see 8xxx flight numbers when airlines add a second plane to a regular flight due to demand (large group, special event, peak travel day, etc.) Ken Ishiguro |
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