FlyerTalk Forums - View Single Post - How does flight numbering decide whether continuation leg gets new UA flight number?
Old Apr 22, 2024 | 7:30 am
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Repooc17
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Usually there should be sufficient block time in between these "direct" flights, but once in a while, there will be two flights in the air with the same flight number.

For example, UA498, preforming STL to DEN, and then DEN to PDX - on Saturday, April 20, 2024, STL to DEN was late, which resulted in two UA498 in the air for a period of time. I actually think the DEN to PDX flight waited a bit before taking off; though can't be absolutely certain:

STL to DEN: landing at 739pm; gate arrival 747pm
DEN to PDX: gate departure 709pm; take off 738pm
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