Join Date: Jun 2017
Location: NYC/LAX/ATL
Programs: JAL Diamond, BAEC Gold, AS 75K, VS Gold, AC 50K, WoH Globalist, HHonors Diamond, Bonvoy Gold
Posts: 237
With the uncertainty in the future of travel, I'll book whatever is cheaper.
From a comparison point of view, Mint is better IMO and JetBlue hasn't axed the SFO-BOS route (1~2 daily in December so I don't see this route being canceled altogether), but JetBlue will not offer as much flexibility in schedule change (can reroute via EWR on UA with potential Polaris configured a/c, while on B6 you will need to stick with a short-haul segment in Core in light of schedule change).