For passengers of larger size, the best option is usually actually to sit in a regular, economy seat that has additional legroom.
The reason for this is that economy seats on most aircraft have armrests that can raise and lower, while exit row, bulkhead, business and first-class seats are fixed-width.
If you happen to be of a size that is wider than those seats, you will be extremely uncomfortabe throughout the flight.
Some airlines do have larger business and first class seats, but usually only by an inch or two. (You can find out for sure on seatguru.com)
Instead, airlines tend to encourage passengers of size to book aisle or window seats in economy and to purchase a second seat (or, provide them with one free of charge, depending on the carrier.) You will then be issued with a seat extender.
If you are nice to the gate agent, you can even ask to preboard so this whole interaction takes place prior to other passengers coming onto the aircraft, should that be something that concerns you.
Originally Posted: https://www.quora.com/Do-any-airlines-do-anything-to-make-travel-more-comfortable-for-larger-passengers
Originally Posted On: 2016-04-02