I regularly fly on United's A319s and A320s non-stop across the continental United States. Depending on headwinds that flight can be 4 to 6 hours (6 1/2 hours was my longest cross country flight). So I don't see any drawbacks. I'd gladly sit on a similar plane like the 737NG if it were headed for Hawaii! Smaller jets with longer range offer more choices at more airports and more opportunity for the flying public. Aloha, Aloha!
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