I found that last page with the BOS-HNL-LAX-PWM-BOS circle query really fascinating for a couple of different reasons: 1) the fact that ITA could already do thi

I found that last page with the BOS-HNL-LAX-PWM-BOS circle query really fascinating for a couple of different reasons: 1) the fact that ITA could already do this in 2003, and 12 years later, most flight search engines still can't handle that kind of query, and 2) that a very similar itinerary today is less than half the price[1]. (As a side note, how awesome is it that you can deep-link to a specific fare on Google Flights?) [1] https://www.google.de/flights/?gl=US#search;iti=BOS_HNL_2015-01-31*HNL_LAX_2015-02-07*LAX_PDX_2015-02-18*PDX_BOS_2015-02-24;tt=m;sel=BOSLAX0DL2531-LAXHNL0DL1559,HNLLAX0DL1434,LAXPDX0DL5815,PDXMSP0DL1073-MSPBOS0DL1164 https://www.google.de/flights/?gl=US#search;iti=BOS_HNL_2015...