"In terms of meals, for breakfast, the yogurt is not too bad. For lunch or dinner, the Grilled Chicken Spinach Salad is the obvious best choice so long as you watch the dressing -- that could put it over the top. The fruit-and-cheese plate is not bad if it's a meal, not just a snack, and the same for the other choices except for the burger. Also, pass on the dessert: It's not worth it."
Southwest Airlines: 2 stars
"Best Bet: Go for the nuts and skip the pretzels and other items."
Virgin America: 2 stars
"Best Bet: In terms of snacks, the PopChips and yumBar are low-calorie choices; the others are high in calories and not good choices. Virgin offers a wide variety of meals, but the focus is not necessarily on health and calories. The chicken sandwich appears to be your best bet. For snack boxes, go with the Veggies and Hummus or the Protein Meal."
US Airways: 1.75 stars
"Best Bet: The CafePlus is not terrible because at the very least you get the protein from the tuna, and it's low in calories. Maybe you can get rid of the cookies (give them to the flight attendant as a gift). Not much else. The Breakfast box is very high in calories and offers little in terms of nutrition."