I had noticed that the Travelocity lowest fare search often provided unavailable international fares. Still it was a very useful source of information. It is a shame it has been pulled--and Travelocity has not provided any plausible reason for this pulling.

Very likely, the airlines did not like the additional information in the hands of customers and pressured Travelocity. The viability of the the Travelocity business model may be in question as airlines force it to cut back.