If you're flying to two destinations, ask your travel agent about the
rates for stopovers and circle trips.  A stopover is useful when you
want to stay for one or two days at a connecting city, and costs only an
extra $20-50. A circle trip applies when your intermediate
destination isn't a connecting city, and costs less than a pair of
round trip tickets, even when your point of origin is a connecting
city for the middle leg of the circle trip. This is especially true
when one of the stays isn't over a Saturday night.

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