From my calculations,

UA has ~200 more daily seats to

LHR than

AA.....BUT....I did make some assumptions that could alter the actual count, as noted below. I looked at todays schedule on the

LHR website. I was going to add

BA numbers for comparison, but this took me long enough.

CO/UA:

EWR..........1X 777, 4X 757.............................952 Seats

IAD.............

3X 777..........................................807 Seats

IAH.............2X 777..........................................552 Seats

ORD ...........

3X 763..........................................549 Seats

LAX............2X 777..........................................538 Seats

SFO ..........1X 747...........................................374 Seats

3,772 Daily Seats

*Assuming

IAH,

EWR use ex.

CO aircraft,

UA 777’s are in new config. Let me know if you know the actual configurations they use.

AA:

JFK.............4X 777............................................988 Seats

ORD ...........1X 777, 2X 763...............................697 Seats

MIA.............1X 777, 1X 763,

3X Weekly 763.....568 (Average) Seats

DFW............2X 777............................................494 Seats

BOS........... 2X 757............................................364 Seats

LAX ............1X 777............................................247 Seats

RDU ............1X 763............................................225 Seats

3,583 Daily Seats

*Added the total weekly seats to

MIA, averaged number of daily seats

DL:

JFK................

3X 764..........................................738 Seats

ATL................1X 764..........................................246 Seats

DTW..............1X 764..........................................246 Seats

MSP ..............1X 764..........................................246 Seats

BOS ...............1X 764.........................................246 Seats

MIA................1X 764..........................................246 Seats

1,968 Daily Seats

*

MIA is ending soon.

US

PHL.................1X A330........................................258 Seats

258 Daily Seats

Let me know if I made any mistakes or left anything out.