| 2018-07-10 19:45:4910th July 2018 |   Whyteleafe vs Welling United | 2 - 4 | Pre-Season Friendly | Church Road | Report |
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| 2018-07-14 12:30:3214th July 2018 |  Welling United vs Charlton Athletic | 1 - 2 | Pre-Season Friendly | Park View Road | Report |
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| 2018-07-21 15:00:2021st July 2018 |  Welling United vs Watford U23 | 3 - 1 | Pre-Season Friendly | Park View Road | Report |
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| 2018-07-24 19:45:4924th July 2018 |  Dover vs Welling United | 1 - 0 | Pre-Season Friendly | Crabble Athletic Ground | Report |
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| 2018-07-28 15:00:3528th July 2018 |  Welling United vs QPR | 4 - 1 | Pre-Season Friendly | Park View Road | Report |
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| 2018-07-30 19:30:3530th July 2018 |  Welling United vs Millwall | 0 - 1 | Pre-Season Friendly | Park View Road | Report |
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| 2018-07-31 19:45:3731st July 2018 |  Dorking vs Welling United | 2 - 3 | Pre-Season Friendly | Meadowbank Stadium | Report |
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| 2018-08-04 15:00:534th August 2018 |  Welling United vs Dulwich Hamlet | 2 - 0 | Vanarama National League South | Park View Road | Report |
1,057 |
| 2018-08-07 19:45:577th August 2018 |  Eastbourne vs Welling United | 1 - 0 | Vanarama National League South | Priory Lane | Report |
585 |
| 2018-08-11 15:00:4811th August 2018 |  Chippenham Town vs Welling United | 1 - 4 | Vanarama National League South | Hardenhuish Park | Report |
498 |
| 2018-08-14 19:45:4714th August 2018 |  Welling United vs Billericay Town | 0 - 3 | Vanarama National League South | Park View Road | Report |
742 |
| 2018-08-18 15:00:0718th August 2018 |  Truro City vs Welling United | 2 - 2 | Vanarama National League South | Plainmoor | Report |
159 |
| 2018-08-25 15:00:0625th August 2018 |  Welling United vs Hemel Hempstead | 1 - 1 | Vanarama National League South | Park View Road | Report |
481 |
| 2018-08-27 15:00:3727th August 2018 |  Concord Rangers vs Welling United | 0 - 5 | Vanarama National League South | The Aspect Arena | Report |
637 |
| 2018-09-01 15:00:041st September 2018 |  Welling United vs Oxford City | 3 - 2 | Vanarama National League South | Park View Road | Report |
465 |
| 2018-09-08 15:00:378th September 2018 |  Chelmsford City vs Welling United | 0 - 0 | Vanarama National League South | Melbourne Community Stadium | Report |
806 |
| 2018-09-11 19:45:3211th September 2018 |  Welling United vs Gillingham | 1 - 2 | Kent Senior Cup | Park View Road | Report |
197 |
| 2018-09-15 15:00:4915th September 2018 |  Welling United vs East Thurrock | 2 - 0 | Vanarama National League South | Park View Road | Report |
547 |
| 2018-09-22 15:00:0422nd September 2018 |  Welling United vs Chesham United | 2 - 1 | Emirates FA Cup | Park View Road | Report |
465 |
| 2018-09-29 15:00:1429th September 2018 |  Bath City vs Welling United | 0 - 2 | Vanarama National League South | Twerton Park | Report |
1585 |
| 2018-10-06 15:00:416th October 2018 |  Hereford vs Welling United | 0 - 2 | Emirates FA Cup | Edgar Street | Report |
1330 |
| 2018-10-13 15:00:1913th October 2018 |  Welling United vs Slough Town | 2 - 1 | Vanarama National League South | Park View Road | Report |
953 |
