Look for the 739 to be used on the SEA-ANC run. Currently this is Alaska's busiest route with 25 peak flights a day in the summer in each direction. This route is currently served with md-80s (140 seats) and 737-400s (138 seats). AS will have the 737-900 configured for 172 seats (16 first class, 156 coach). Other routes would be SEA-LAX and SEA-SFO. You might see it in SNA where growth is restricted due to slot restrictions.
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