Originally Posted by
ThreeJulietTango
Somewhat counterintuitively, those routes are most likely to have higher fares since lower demand likely results in less competition. My cheapest flights this year have all been hub-to-hub, on routes where AA directly competes with ultra-low-cost carriers like Frontier or Spirit.
Yep, exactly this. LAX-DFW is usually incredibly cheap as NK, WN, UA, DL, AA, and VX fly Los Angeles to Dallas.