|This is the beginning of what could be a very nice book. I have listed some things below that may help you. I am a pretty brutal critic, so just take it as me trying to help. Thank You.
In the first paragraph, did you mean she was in front of you in the queue? Like she was in front of you in line?
It almost sounds a little creepy when you continue to watch this woman aboard flight 201. I think if you would have described other things that happened as you enter the plane, then notice her again, maybe this would seem to be more of a familiar and normal occurrence to readers. I have many times noticed a striking woman and then noticed the same woman again later. I try not to let it interfere with my living though.
I think I would say "Is it natural or the result of rhinoplasty."
She supported herself DURING college may be less redundant.
Instead of Miss Anything, I would try to find a name of a Pilipino island that sounds very remote. for interest.
"I would never consider myself beauty pageant material" may work better here.
Maybe instead of saying I can see she is... ...all snarled up in the past, maybe say "probably snarled up in the past" because this is your assumption. also the word Tangled may work better than snarled, which is not used so frequently.
...smoke in the cabin, she..." Eliminate she.
I think you doubled up when you said brings back a feeling of deja vu. You are brining back feelings, which is the sensation known as deja vu.
Maybe you say that this stare is somehow familiar and describe the feelings it creates or stirs up inside of you.
When you describe the pumice-covered landscape, you say appearance and then ...look to it. Maybe with an eerie feel to it would be less redundant. Also this is very conflicting imagery. You may want to give more detail of why it is eerie at all.
maybe instead of breathing gently from its throat, say from THE VOLCANO'S throat. This would make it more obvious that you are using metaphor.
...strange and mysterious, happened... Eliminate the comma, it is breaking up the flow of the sentence and is unnecessary.
There is no closure on the mysterious woman, but this is only part of the story I take it. She may be one of the father's mistresses, who knows? I think this is a great start and I would like to read more. I hope my criticism is helpful and will allow you to improve your story.
I hope this helps. Thank You.
If you get a chance, please review one of my screenplays. Thank You.