Absolutely agree with @PoshJuli - don't feel complimentary to none of these outfits. But in according to a task - to choose between- would vote defitinetely to Izabel (outfit 2). It's too predictable, in a boring classic sports items. But at least it's a balanced look...not only for travel, but accordingly the styling rules.
Outfit 1 - it's not only improper one for flight hours, but also unstylsih at all. Disbalanced mixed of things: summer light dress, silky classic wrap and stylish, art-deco pumps. They don't live together! These Pumps with this wrap - well, why not, but with another company.