Flight Ease: fare difference when checking via Princess and HAL

[calteacher]

We have an Alaskan cruise/tour planned for August 2020 and have reserved flights using FlightEase.  I tend to check the air fares from time to time, first using the data as if I were on a Princess Cruise and then rechecking for our current reservations.  Tonight I discovered that if I were booking through Princess, the fare would be around $350 less expensive using the exact flights.  Is there often a big difference when actually going through HAL even though I've been told they use the same system?

 

[AtlantaCruiser72]

Princess is currently running a promotion with $200 per person off on flights, so perhaps that is where the discrepancy comes in. 
 

While both lines use the same consumer facing software system, at present their Air departments are separate and contracts are also negotiated separately with the airlines and Princess’ larger size may also give them more leverage. 

[canadarocks]

I have found that the Princess air pricing is indeed a bit cheaper than Holland America's.