Ruling on working as a pilot for an airline that serves alcohol on its flights

What the Muslim must do is avoid working in any place
where alcohol is manufactured or served, because Allah, may He be
exalted, says (interpretation of the meaning):

“O you who believe! Intoxicants (all kinds of alcoholic
drinks), and gambling, and Al‑Ansaab (stone altars for sacrifices to idols
etc) and Al‑Azlaam (arrows for seeking luck or decision) are an abomination
of Shaytaan’s (Satan’s) handiwork. So avoid (strictly all) that
(abomination) in order that you may be successful”

[al-Maa’idah 5:90]. 

Shaykh Muhammad al-Ameen ash-Shinqeeti said:

Avoiding something means keeping away from it, so that one is
in a different place from the place where it is.

End quote from Adwa’ al-Bayaan (2/405) 

The Prophet (blessings and peace of Allah be upon him) cursed
ten with regard to alcohol, including the one who carries it. 

It was narrated that Anas ibn Maalik said: The Messenger of
Allah (blessings and peace of Allah be upon him) cursed ten with regard to
alcohol: the one who presses (the grapes etc), the one for whom they are
pressed, the one who drinks it, the one who carries it, the one to whom it
is carried, the one who pours it, the one who sells it, the one who consumes
its price, the one who purchases it and the one for whom it is purchased.

Narrated by at-Tirmidhi (1259); classed as saheeh by Shaykh
al-Albaani. 

I put this question to our Shaykh, ‘Abd ar-Rahmaan al-Barraak
(may Allah preserve him) and he said: 

It is not permissible for anyone to work as a pilot for an
airline that serves alcohol on its flights. Similarly, it is not permissible
for anyone to travel on a plane that serves alcohol, unless he has no choice
because otherwise he will miss out on something that is in his interests.
End quote. 

And Allah knows best.