Passenger legroom in economy class has been shrinking in recent years, as airlines come up with new ways of squeezing extra seats onto planes.British Airways is adding extra seats to the Airbus aircraft it uses on its short-haul flights, reducing the legroom available to 29 inches - the same amount offered by easyJet.
Other types of plane in BA's fleet afford economy passengers more room. Ryanair, meanwhile, uses Boeing 737 planes that still offer a minimum 30 inches of legroom.
Many airlines flying long-haul on Boeing 777s have also recently introduced an extra seat to each row, meaning that 10 passengers fly side-by-side as opposed to the usual nine. Those sitting in the new 10-seat configuration - soon to be those flying with BA, Emirates, Etihad and Air France - will enjoy nearly an inch less seat width.
American Airlines has been using the 10-seat configuration since 2014.
You can compare the legroom available on popular airlines for both short-haul and long-haul flights in the tables above and below, with data collected from seatguru.com.
long haul econ -
Air Canada 30-35
Air China 31-33
Air France 31-34
British Airways 30-31
Cathy Pacific 32
China Southern 29-33
Delta Air Lines 31-35
Emirates 32-34
Etihad Airways 31-33
Jet Airways 32
KLM 31-35
Lufthansa 31-32
Norwegian 31-32
Qatar 31-33
Thai Airways 31-34
Thomas Cook 29-31
Turkish Airlines 31-34
Virgin Atlantic 31
West Jet 31-38
Short haul econ -
Air France 31-32
Austrian Airlines 30
British Airways 29-34* (29-33 from 2018)
EasyJet 29
KLM 29-31
Lufthansa 30-32
Swiss 30-32
Thomas Cook 28-30
Thomson 28-33
Ryanair 30* (30-31 in 2018)