Sooooo My spouse is leaving a Delta Connection airline for mainline US Air.
What are the major differences in flight benefits?
  • I already know of having to pay $20 upgrade for domestic first class
  • and $100 for International upgrades and you have to purchase a coupon on advance
  • US Air does not fly to SE Asia (American does but there is no buyout yet)
  • What other ailines are free flights available
  • Anything to add