FA Cup 2023/24, First Qualifying Round |
 | 02.09.2023 |  | Leighton Town | – | Cambridge City | | 1:6 (0:2) |
| Leighton Buzzard |
FA Cup 2021/22, Preliminary Round |
| 21.08.2021 | | Brentwood Town | – | Leighton Town | | 1:0 (1:0) |
| Brentwood |
FA Cup 2020/21, Second Qualifying Round |
| 03.10.2020 | | Leighton Town | – | Leiston | | 1:2 |
| Leighton Buzzard |
FA Cup 2019/20, First Qualifying Round |
| 07.09.2019 | | Lowestoft Town | – | Leighton Town | | 2:0 (0:0) |
| Lowestoft |
FA Cup 2018/19, Extra Preliminary Round |
| 11.08.2018 | | Leighton Town | – | Royal Wootton Bassett Town | | 0:1 (0:1) |
| Leighton Buzzard |
FA Cup 2017/18, Preliminary Round |
| 19.08.2017 | | Leighton Town | – | Tuffley Rovers | | 2:3 (2:0) |
| Leighton Buzzard |
FA Cup 2016/17, Extra Preliminary Round |
| 06.08.2016 | | Leighton Town | – | Northampton Sileby Rangers | | 1:2 |
| Leighton Buzzard |
FA Cup 2015/16, First Qualifying Round |
| 12.09.2015 | | Cogenhoe United | – | Leighton Town | | 3:2 (1:2) |
| Cogenhoe |
FA Cup 2014/15, Preliminary Round |
| 30.08.2014 | | Bedfont & Feltham | – | Leighton Town | | 3:2 |
| London |
FA Cup 2013/14, Preliminary Round |
| 31.08.2013 | | Leighton Town | – | Biggleswade United | | 1:3 (1:1) |
| Leighton Buzzard |
FA Cup 2012/13, Preliminary Round |
| 28.08.2012 | | Leighton Town | – | St. Margaretsbury | | 2:3 * |
| Leighton Buzzard |
FA Cup 2011/12, Third qualifying round |
| 15.10.2011 | | Southend Manor | – | Leighton Town | | 5:0 (2:0) |
| |
FA Cup 2010/11, First Qualifying Round |
| 11.09.2010 | | East Thurrock United | – | Leighton Town | | 2:1 |
| |
FA Cup 2009/10, Preliminary Round |
| 01.09.2009 | | Aylesbury | – | Leighton Town | | 1:0 * |
| |
FA Cup 2008/09, Second Qualifying Round |
| 27.09.2008 | | Leighton Town | – | Crowborough Athletic | | 0:1 |
| |
FA Cup 2007/08, Fourth Qualifying Round |
| 27.10.2007 | | Havant & Waterlooville | – | Leighton Town | | 3:0 (1:0) |
| |
FA Cup 2006/07, First Qualifying Round |
| 16.09.2006 | | Romford | – | Leighton Town | | 3:0 |
| |
FA Cup 2005/06, Preliminary Round |
| 30.08.2005 | | Wroxham | – | Leighton Town | | 4:1 * |
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FA Cup 2004/05, Preliminary Round |
| | | Soham Town Rangers | – | Leighton Town | | 1:0 |
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FA Cup 2003/04, First Qualifying Round |
| | | Leighton Town | – | St Margaretsbury | | 0:1 * |
| |
FA Cup 2002/03, Preliminary Round |
| | | Royston Town | – | Leighton Town | | 3:0 * |
| |
FA Cup 2001/02, Preliminary Round |
| | | Leighton Town | – | Dunstable Town | | 1:4 |
| |
FA Cup 2000/01, Preliminary Round |
| | | Potters Bar Town | – | Leighton Town | | 2:1 |
| |
FA Cup 1999/00, Preliminary Round |
| | | Ruislip Manor | – | Leighton Town | | 2:0 |
| |
FA Cup 1998/99, First Qualifying Round |
| | | Leighton Town | – | Ford Sports Daventry | | 1:2 |
| |
FA Cup 1997/98, First Qualifying Round |
| | | Leighton Town | – | Wingate & Finchley | | 1:2 |
| |
FA Cup 1996/97, Preliminary Round |
| | | Uxbridge | – | Leighton Town | | 2:1 |
| |
FA Cup 1995/96, Preliminary Round |
| | | Clapton | – | Leighton Town | | 2:1 |
| |
FA Cup 1994/95, Preliminary Round |
| | | Leyton | – | Leighton Town | | 1:0 * |
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FA Cup 1993/94, Preliminary Round |
| | | Langford | – | Leighton Town | | 2:1 |
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FA Cup 1992/93, First Qualifying Round |
| | | Leighton Town | – | Aveley | | 2:4 |
| |
FA Cup 1991/92, Second Qualifying Round |
| | | Berkhamsted Town | – | Leighton Town | | 2:0 |
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FA Cup 1990/91, Preliminary Round |
| | | Leighton Town | – | Spalding United | | 0:1 |
| |
FA Cup 1989/90, First Qualifying Round |
| | | Newmarket Town | – | Leighton Town | | 1:0 |
| |
FA Cup 1988/89, First Qualifying Round |
| | | Banbury United | – | Leighton Town | | 2:1 * |
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FA Cup 1971/72, Preliminary Round |
| | | Kingstonian | – | Leighton Town | | 4:1 |
| |
FA Cup 1970/71, Third Qualifying Round |
| | | St Albans City | – | Leighton Town | | 2:1 |
| |
FA Cup 1969/70, Second Qualifying Round |
| | | Dunstable Town | – | Leighton Town | | 3:1 |
| |
FA Cup 1950/51, First Qualifying Round |
| | | Leighton United | – | Bedford Town | | 2:8 |
| |
FA Cup 1949/50, Preliminary Round |
| | | Baldock Town | – | Leighton United | | 2:0 |
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FA Cup 1948/49, First Qualifying Round |
| | | Hitchin Town | – | Leighton United | | 4:2 |
| |
FA Cup 1947/48, Preliminary Round |
| | | Arlesey Town | – | Leighton United | | 2:0 |
| |
FA Cup 1946/47, Second Qualifying Round |
| | | Leighton United | – | Bedford Town | | 2:5 |
| |
FA Cup 1945/46, Second Qualifying Round |
| | | Letchworth Town | – | Leighton United | | 3:0 |
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