My husband and I will be traveling to Maui for our babymoon in September. We're flying from NYC, and I'll be about 27-28 weeks pregnant. Would love to book first-class, but it's just too pricey for me to justify...so my question is this. Provided we book premium economy on either United or Delta, which airline do you think would give us the greatest chance of a last minute upgrade possibility (which I realize we might have to pay for, but it'll be far less that buying first class outright). Has anyone gotten lucky with this previously?
Much thanks, all!