The fixtures for the 2013-14 football season are announced, and as last year I've put the London matches into a Google Spreadsheet. Matches listed are those played IN Greater London, i.e. HOME games for the London based league teams, and this year the Conference National.
For each match, there is a link to the home club's website, which you should visit for ticket information.
I will do my best to keep this up to date with Leagues, FA Cup, League Cup, European Competitions and Internationals. However, please check with the club's website, or BBC schedule for the most accurate information. Matches are liable to rescheduling due to TV schedules, fixture clashes with other competitions, and weather.
If you are visiting London and planning to go to a Premier League match, remember the following:
1) Premier League games, especially involving the "big clubs", can sell out very quickly.
2) You have a better chance of getting tickets for matches involving "small clubs".
3) You have a better chance of getting tickets to see a Premier League team if you join the club's membership scheme.
4) If you can't get tickets, there's plenty of enjoyable football at the games in the Championship and Leagues 1 & 2.
Also note that Thomas Cook sells tickets for matches as part of a hotel package, so that may be another (albeit expensive) option - http://www.thomascooksport.com/Football
Please let me know of any errors or changes.