As someone who recently took a 15-hour flight to Seoul (and back), I've got you.
Best Things I Brought on 21-Hour Flight With a Little Kid
Easy tips and tricks for making a long-haul flight more comfortable - Mirror Online
How to Fix the Absolute Hell of Flying in Coach
Flying with a Toddler: Airplane Toddler Tips for Happier Flights - Diapers in Paradise
23 Things That'll Make A Long Flight Way Less Boring
21 Things That'll Make A Long Flight Far More Bearable
21 Things That'll Make A Long Flight Far More Bearable
Tips to Survive a 13-Hour, Long-Haul Flight From US to New Zealand
Elizabeth Lilly (elizabethlilly) on BuzzFeed
20 Products To Pack When Traveling With A Baby
21 Things That'll Make A Long Flight Far More Bearable
Tips to Survive a 13-Hour, Long-Haul Flight From US to New Zealand
28 Things That'll Make You Hate Flying A Whole Lot Less