M.C.
You can do it, E.! It just takes a lot of work. My DD has been flying every few months since she was 3 mos old (all family is in northeast or midwest). To be honest, 14 mos was the most challenging--younger, like you said, there was more sleep. Now, at 2 yo, DD understands what's going on, knows the drill, can color, and will watch a DVD (she maxes out after about 30 mins, but at least that's 30 minutes!). My DD, also, is super active. The trick is to bring A LOT of snacks, new toys, new books. Just keep changing it up. Your job, for the entire flight, is to be her entertainer. Don't bother bringing a magazine, you won't read it. We, also, never felt we could afford the extra seat (of course, now we don't have the choice!). What we DID do a couple of times, which was GREAT, was pay the extra $30 or so for the "premium economy" seat with the extra legroom, if that's an option for you. I could then sit cross-legged in my seat (here's hoping you're a yoga buff, like me!) and DD could play on the floor in my "extra legroom." You should bring a mix of old favs and brand new, exciting things for DD to play with. Nothing big--finger puppets are great. I'd try a sticker book, to see if she can manage that yet (stickers got us all the way from DFW to Chicago at 19 mos). I just hit up the dollar store and spend $10-15 before each trip. We abandon most usual eating rules on flights--if she wants to eat, she can eat, no fixed snack or meal times (although I'd avoid candy, since you don't want a toddler with a sugar high on an airplane!). Unlike the previous poster, we DO get to the airport a little early, and take her for laps--just walk up and down the terminal to tire her out (she walks herself, no stroller rides)! Sleeping on the flight is, of course, ideal, but it can be tough. Just keep your sense of humor, and know that this, too, will pass--it may be the longest (however many )hours of your life, but it is just a few hours! Oh, and one last tip--you may want to pack, in your carry on, an extra change of clothes for YOU, as well as DD. At 15 mos, we did a 7+ hour trip (thanks to flight delays, etc) with no nap and I got peed on--DD got all new clothes, and I had to sit on the plane wet! Won't make that mistake again! LOL!