Originally Posted by VPescado
Double Open Jaw - Fly A-B, C-D, E-A
Really? I thought it was just A-B, C-D, like SFO-JFK; BOS-LAX.
Originally Posted by VPescado
Half round trip basis: The cost of an A-B-C-A circle trip is one half the price of the sum of the following round trip fares: A-B-A, B-C-B, C-A-B.
That last one should be C-A-C.
Here are some examples:
Open Jaw - SFO-JFK; BOS-SFO. The open jaw (in this case, JFK-BOS) must be the shortest leg.
End on End - SFO-ORD-SFO + ORD-DTW-ORD. Note that SFO-ORD-SFO + ORD-SFO-ORD is typically not allowed, as this is considered back-to-back.
Circle trip - SFO-ORD-(stop)-BOS-(stop)-SFO. The stopover is what makes this a circle trip - if ORD is just a connection, it's a simple round-trip.