Was surprised at the results from this brief study, after expecting to see more difference between carriers on seat size. The numbers speak for themselves. They include the avg based off of the number of aircraft in the fleet, the most common aircraft configuration, and the averages of pitch/width in a given cabin on an aircraft type.

AA definitely had the most seats and easily the most upgraded economy seats. Delta had the greatest number of first class seats and highest percentage of basic economy seats, which was a bit of a surprise to me. United certainly lagged in narrow-body mainline seats, but they had the highest percentage of upgraded economy.

As far as seat pitch and width went, they were all very close. Delta had a slightly bigger economy seat, but was middle of the pack in upgraded economy and slightly trailed in the premium cabin.

United and AA were very close on Econ and Upgrade Economy seats, but their pitch differed with AA having more room in Economy Basic while UA had slightly more room in Upgraded Economy.

In the end, it was interesting to see at least from a seats standpoint what the data really says.

AmericanAircraft #Main CabinCabin ExtraFirstSeatsMain CabinCabin ExtraFirst
A319133962481276831921064
A3204812018125760864576
A32122812936162941282083648
E19018808111440144198
737-8NG32812630164132898405248
75734138381246921292408
95,40023,54011,142
Delta
A31957102181258141026684
A32062126181678121116992
A3219514329201358527551900
C100288215122296420336
737-710941812940180120
737-8771083616831627721232
737-913013921201807027302600
757-211113521241498523312664
757-31617832242848512384
MD8855108251659401375880
MD902811725163276700448
B71788782012686417601056
90,74617,67713,296
United
A319687842853042856544
A32097964212931240741164
737-74066401226401600480
737-814110248161438267682256
737-916212039201944063183240
75753108451657242385848
757-30021158502433181050504
60,12025,0519,036
% of Total
EconomyEconomy ExtraFirst
American73%18%9%
Delta75%15%11%
United64%27%10%
AVG Pitch
EconEcon +Premium
American30.6433.6936.75
Delta30.8234.0036.80
United30.3334.6641.03
AVG Width
EconEcon +Premium
American17.3817.4020.93
Delta17.5617.5620.75
United17.3917.4020.87

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