This is because of availability on the UA flight numbers for some reason. I noticed this on flights with US aircraft as well. Mark Blaine Thompson wrote: > When doing a search tonight for airfares, I found several US Air fares > that were considerably ($300-$400) cheaper than their United Airlines > counterpart. All of these less expensive itineraries were US Air flight > numbers, but really United Airlines airplanes, etc. > > Why such a discrepancy? I'm sure this has been discussed, but I'm > finding nothing in either list archive. > > Many Thanks! > > Blaine Thompson > >