I'm flying a route of 605 nm using three B737-400s, six times daily against a competitor who is flying twice daily with a B737-500. I am charging default rates, my CI is trending up as is the RI and I'm marketing heavily as I'm making good money.
Until recently I had 100% market share on the route, however, within the last week I have lost about 6% to my competitor. I have not changed anything as all was going very well.
Does anyone more knowledgeable than me know, or can offer an idea, why this is happening? And can you offer me advice on fixes to the problem?