Sometimes I see MRs posted for example - SFO-BOS for $219 AI. Being based out of ORD what is the best strategy for getting as close to the SFO-BOS fare? Are you basically stuck with just buying a one way ticket to SFO and then another one way from BOS back to ORD? I know you can try the multi city feature but wanted to see if someone else had any other ideas. Thanks!