Not to be confused with the F Snack Basket that is served on shorter (<350 miles Main Line + < 2:30 hr Horizon/Skywest) F Basket: Biscottea Shortbread, Less Evil Popcorn, Skinny Dipt Lemon Almonds, KIND Bars etc Hopefully they don't make this the same basket, otherwise it isn't as First Class as it is Premium. They changed the flight lengths again:

Main Line Flights;
<350 miles F Snack Basket
351-670 mi = Nothing Listed - Snack Basket?
Exception routes: SEA to SJC/SFO/OAK/LAS (FAT/RNO out of luck even though they are longer flights) These receive the 671-1059 mi small plates style below
671-1059 mi = Hot/Cold Small Plates Meal + Cookie type dessert
1100-2139 mi = Nuts, appetizer, Entree + Non Cookie type dessert (sometimes F Snack Basket
2140+ mi = Nuts, appetizer, Entree, Bread/Buter, Enhanced dessert like S+S Ice Cream + F Snack Basket

Horizon/Skywest Regional Flights:
No rhyme or reason currently. Seems to depend on if out station has catering more than the flight distance. Example (LAX-BOI - cold meal, BUR-BOI - refreshments only) (LAX-EUG - Cold Meal, BUR-EUG - TBD)

TBD = Euro/Asian Routes