Flying first class isn’t a necessity, but experiencing life behind the curtain at least once can be a worthy goal. That’s where passengers might be feasting on fine wine and warmed nuts, enjoying movies on large screens with noise-canceling headphones, and sleeping in lie-flat beds on lengthy flights. The good news is you can check... More From NerdWallet How to Leverage Great Credit Without Borrowing a Dime How Credit Card Rewards Made Their Dreams Come True To Hang On to More Cash, Let Go of These in 2018 Gregory Karp is a writer at NerdWallet.