Fare zones 7–9 are ancillary zones of the Travelcard and Oyster card fares scheme managed by Transport for London, used for calculating fares from some stations outside Greater London that are not in zones 4, 5 and 6. Travelcards are available on Oyster with validity in these zones. Stations in these zones are typically more than 16 miles (26 km) from Piccadilly Circus. Additionally, Fare zones A–W (or 10–14) are further unpublicised zones for stations where Oyster card is accepted and fares are set by National Rail, but the full range of zonal ticketing is not available. Compared to the full concentric rings of zones 1–6, these zones form patches that extend into Buckinghamshire, Essex, Hertfordshire, Kent, Surrey and West Sussex.
Fare zones 1, 2, 3a, 3b and 3c—covering all London Underground stations in Greater London—were established on 22 May 1983. Seven stations on the Central line and eight on the Metropolitan line that were outside the boundary were not included in the zones. The zones were reorganised as 1, 2, 3, 4, 5 and 6 by January 1991. As a precursor to introducing ancillary zones, stations not included in fare zones 1–6 were organised in three groups labelled A, B and C by 1995. Lettered zones A, B, C and D appeared on publicity material by 1999. These were replaced by zones 7, 8 and 9 on 2 January 2008 and expanded to further stations.
Fare zones 7–9 extend from the boundary of Greater London. They include stations outside London that are not in zones 4, 5 and 6 where fares are set by Transport for London. They form small patches rather than full concentric rings around London of zones 1–6. Travelcard season tickets for these zones are only sold in limited combinations. Tickets to these stations issued by National Rail are subject to certain restrictions.
| Zone | Station | Local authority | Managed by | Notes |
|---|---|---|---|---|
| 7 | Carpenders Park | Three Rivers | London Overground | |
| 7 | Chorleywood | Three Rivers | London Underground | |
| 7 | Croxley | Three Rivers | London Underground | |
| 7 | Moor Park | Three Rivers | London Underground | Also in zone 6 |
| 7 | Rickmansworth | Three Rivers | London Underground | |
| 7 | Theobalds Grove | Broxbourne | London Overground | |
| 7 | Waltham Cross | Broxbourne | Greater Anglia | |
| 7 | Watford | Watford | London Underground |
| Zone | Station | Local authority | Managed by | Notes |
|---|---|---|---|---|
| 8 | Bushey | Watford | London Overground | |
| 8 | Chalfont & Latimer | Buckinghamshire | London Underground | |
| 8 | Cheshunt | Broxbourne | Greater Anglia | |
| 8 | Dartford | Dartford | Southeastern | |
| 8 | Swanley | Sevenoaks | Southeastern | |
| 8 | Watford High Street | Watford | London Overground |
| Zone | Station | Local authority | Managed by | Notes |
|---|---|---|---|---|
| 9 | Amersham | Buckinghamshire | London Underground | |
| 9 | Brentwood | Brentwood | Elizabeth line | |
| 9 | Chesham | Buckinghamshire | London Underground |
The Oyster card technology accommodates further zones that have their fares set by National Rail companies. To avoid confusion, the zones are not publicised. This is because the full range of ticketing is not available as in the concentric ring zones 1–6 and fares are not consistent between stations in the same zone. Like zones 7–9, these zones apply to small patches of stations. On London rail maps, these stations appear with the caption "Outside fare zones". They are included in the system for pay-as-go and capping, but special fares apply, and Travelcard season tickets on Oyster card are only available where indicated. Stations in these zones are:
| Zone | Oyster | Station | Local authority | Managed by | Notes |
|---|---|---|---|---|---|
| A | 10 | Watford Junction | Watford | London Northwestern Railway |
|
| N/a | 10 | Cuffley | Welwyn Hatfield | Great Northern | |
| N/a | 10 | Epsom | Epsom and Ewell | Southern | |
| G | 10 | Chafford Hundred | Thurrock | c2c | Zone A for capping |
| G | 10 | Grays | Thurrock | c2c | Zone A for capping |
| G | 10 | Ockendon | Thurrock | c2c | Zone A for capping |
| G | 10 | Purfleet | Thurrock | c2c | Zone A for capping |
| B | 11 | Bayford | East Hertfordshire | Great Northern | |
| B | 11 | Broxbourne | Broxbourne | Greater Anglia | Oyster Travelcard |
| B | 11 | Hertford East | East Hertfordshire | Greater Anglia | Oyster Travelcard |
| B | 11 | Hertford North | East Hertfordshire | Great Northern | |
| B | 11 | Potters Bar | Hertsmere | Great Northern | |
| B | 11 | Radlett | Hertsmere | Thameslink | |
| B | 11 | Rye House | Broxbourne | Greater Anglia | Oyster Travelcard |
| B | 11 | St Margarets | East Hertfordshire | Greater Anglia | Oyster Travelcard |
| B | 11 | Ware | East Hertfordshire | Greater Anglia | Oyster Travelcard |
| C | 12 | Shenfield | Brentwood | Greater Anglia | Oyster Travelcard |
| D | 13 | Earlswood | Reigate and Banstead | Southern | |
| D | 13 | Horley | Reigate and Banstead | Southern | |
| D | 13 | Merstham | Reigate and Banstead | Southern | |
| D | 13 | Redhill | Reigate and Banstead | Southern | |
| D | 13 | Salfords | Reigate and Banstead | Southern | |
| E | 14 | Gatwick Airport | Crawley | Gatwick Express |
Zone F (or 15) was reserved for Elizabeth line stations out to Reading but is unused.
From Friday 31st May, Brentwood will be classified as Zone 9 and the standard Zone 9 Travelcard prices shown below will apply