Originally Posted by
plinth857
Seattle is currently serviced by Cleveland on a seasonal basis by Frontier. When it was being operated, the aircraft were more than 90% full. I believe Alaska could sustain a once daily flight. At the very least, it could be worth testing the waters, like JetBlue did with the CLE-->BOS route, which maintains competition with UA (and sometimes Spirit).
The seasonal flight on Frontier are leisure passengers. Airlines need business travelers paying high fares.
Just because an airline is full does not mean it's making money. Presently there are routes that can make MORE money and that's where the planes go. If anything I'd guess I'd see Columbus or Cincinnati before Cleveland.