We booked US Air (again) for our March trip - for aprx $200 less than our November trip - I might could have done better, however; I really like the times of arrival/departure of our flights i.e. we leave DFW at aprx 7:30 am and arrive McCarran at aprx 8;30 am, giving us an entire day on our first day. Times of arrival and departure can be very important (even more so than airfare - i.e. ATA will get into McCarran at 6;30 pm, losing almost an entire day in Vegas (although you will be charged for an entire day by your hotel - we almost missed a dining meet with Lee and company one trip by taking ATA - no more! We have been booked on the AIRBUS going out on previous trips, however; this trip, we are on 737s both ways. I guess the bottom line is check your transportation details carefully,.
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Wendell