FlyerTalk Forums - View Single Post - Help Spotting UA/US Codeshare MR Opportunities
Old Jan 5, 2009 | 7:08 pm
  #2  
ndot
 
Join Date: Jun 2005
Location: BOS
Programs: UA 2K, BD Gold, DL/NW Gold, SPG Plat, MRW Silver, Hertz PC
Posts: 240
The flight numbers should give you an indication. For instance UA Flight #s 1700-3899 are codeshares operated by US.

I'm not sure what the exact number range for US flights operated by UA, looks like at least 5xxx and 6xxx flights are all UA.
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