Cptnchia
Dissatisfied Customer
Where are you getting your numbers from? I can find neither that matches what you say.
My sources.
https://www.google.com/flights/#search;f=GEG;t=ATL;d=2018-01-17;r=2018-01-21;mc=d
https://www.southwest.com/flight/shortcut/select-flight.html?fromShowItinerary=1&int=
Here it is directly from Delta's website.
https://www.delta.com/air-shopping/flexDates.action
Delta's lowest fare is $419 and $392 consistently for the month of Jan.
Southwests lowest fare is $207 and $185 consistently for the month of Jan.
Damn that empirical data again.
Where are you seeing Delta GEG to ATL for $185.
Fly Delta app for Jan 16, 2018