And YOU may not use data.... But plenty of apps do... And if they have trouble getting a data connection.... Your battery plummets.
Again then.... Airplane mode is definitely overkill. Just toggle off data, or turn it off in settings. Then calls and texts will still work. When the signal is good enough.
Check the Battery thread in my signature. Do as many things in post 2 as you can and you may see a better result.
And see post 4...provide most of those screen shots.... With a long drain.... 100 to like 10 percent... And we can see if anything seems odd.
But again, your drain isn't bad at all really. How much screen time was in those 5 hours BTW?