Originally Posted by
ravisurdhar
Thanks! Higher probability and/or sooner clearance of booking NH and upgrading with UA PP, rather than booking a UA flight (meaning UA metal, not NH metal with an UA flight number) and trying to upgrade with PP?
That will always depend on the flight in question. UA has a lot more upgrade instruments going around than NH and UA also sells upgrades. IME NH upgrades clear at a very high rate and much more than UA upgrades.
That said, you need to buy a higher fare class on NH to be able to upgrade, so the penalty is higher if it doesn't clear.