Try a KinderPack soft-structured carrier. My wife has a ton of wraps and carriers (her faves are a Kanga and a woven wrap), but this is the one we usually bring on trips because it's very adjustable (fits both my broad shoulders and her smaller frame pretty well), can do either a front or a back carry very easily (feels effortless for me) and it's so light you don't notice it when baby is elsewhere and you buckle it back up. The Kinderpack made our DL trip in January WAY better.