The game theory of choosing flight seats
I’ve been traveling a lot and thinking about the strategy of picking the best seat on a plane.
Here is an interesting question that came across my mind.
If you are flying with a friend, which two seats should you pick on a plane? Assume you want to sit next to your friend, but you would prefer the neighboring seats are empty for extra space.
The plane seats on two sides, with three seats to each row as follows:

image from video by JimBobJenkins Youtube video
Which two seats would you pick?
My strategy
There’s nothing mind-blowing about my tip, but it is instructive as an exercise in game theoretic thinking.
My tip is this: if I’m flying with a friend, we usually grab an aisle and a window seat in the same row, leaving an empty middle seat in between us.
If we instead chose two seats next to each other–like a window and a middle–we are leaving a desired aisle seat which will quickly be chosen. Picking the window and the aisle in a way deters people from sitting next to us, as the middle seat is least preferred.
And if someone should occupy the middle seat, it is easy enough to trade with them an aisle or a window to make sure you sit next to your friend.
To put this strategy in game theoretic language, picking an aisle and a window seat is a combination that is weakly dominant strategy compared to picking either an aisle seat and a middle or a window seat and a middle.
Other tips
An alternate strategy is to pick two aisle seats in the same row. This does leave a gap in between me and my friend, however, so I don’t usually go this route.
Other than that, I try to pick a seat near the front of the plane to get out of the flight earlier. A smaller consideration is I try to sit far away from lavatories since people tend to congregate next to them.
I occasionally consult SeatGuru, a site that suggests desirable seats for airplane models, just to see if there are any interesting factors like power ports for specific seats on international flights.
What are your tips for picking a good flight seat?
Also check this video out
William Spaniel has an interesting video about how to get an empty seat next to you as a single traveler. Watch the video for its logical thought process. Though I would caution against its advice: the recommended seat is often empty because it is not a great location.
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