M404 From United States of America, joined Nov 2003, 2218 posts, RR: 5 Reply 2, posted (7 years 9 months 2 weeks 3 days 5 hours ago) and read 2312 times:
It's only cheaper than empty if you have to ferry empty seats. Smaller aircraft with less seats but better economics are one possibility but chasing a losing market share is still a bad business model.
Of course the percentage of seats available at that price is key. If the flight is near full and these are simple top off fares then fine but these types are rarely advertised and usually offered at last minute. Say about 48 hours before departure. Fares like this offered far ahead of time may only allow someone to fly that might have paid more if it didn't exist.
Less sarcasm and more thought equal better understanding