The oyster system is designed for single journeys, although a journey by rail can include any combination of National Rail (inc Overground), Underground and DLR. Providing you always touch in and touch out at the ends of your journey you should always be charged the correct fare. Each journey must be completed within a maximum time. The amount of time you are allowed varies depending on the time of day and the number of zone boundaries crossed.
and all day Saturday
|Zone 1, zone 2, zones 2-3||90 mins||100 mins||110 mins|
|Zones 1-2||100 mins||110 mins||120 mins|
|Zones 1-3||110 mins||125 mins||135 mins|
|Zones 1-4*||110 mins||125 mins||135 mins|
* Use these values for upto 5 zones within zones 1-4, see below for 6 or 7 zones.
In the table below the stations outside of zones 1-9 have been given pseudo-zone numbers purely for the calculation of maximum journey times. Watford Junction, Ockenden, Chafford Hundred, Purfleet and Grays are all considered to be zone 10 while Broxbourne and Brentwood are zone 11 with Shenfield in zone 12. All zones technically exist, even with no stations, so Watford Junction to Bushey is a 3 zone journey (10-9-8) and Upminster to Grays is 5 zones (6-7-8-9-10). The TfL site describes the longest journey as Amersham to Shenfield (9 through to 1 then 2 through to 12), but I think Watford Junction to Shenfield should possibly be longer at 21 zones. Does anyone want to guess how long will be allowed on a through train between Maidenhead and Shenfield when Crossrail opens?
|Number of zones||Monday-Friday|
and all day Saturday
|Within 1 zone*||70 mins||80 mins||85 mins|
|Across 2 zones*||80 mins||90 mins||100 mins|
|Across 3 zones*||90 mins||100 mins||110 mins|
|Across 4 zones*||100 mins||110 mins||120 mins|
|Across 5 zones||110 mins||125 mins||135 mins|
|Across 6 zones||120 mins||135 mins||145 mins|
|Across 7 zones||130 mins||145 mins||160 mins|
|Across 8 zones||140 mins||155 mins||170 mins|
|Across 9 zones||150 mins||165 mins||180 mins|
|Across 10 zones||160 mins||180 mins||195 mins|
|Across 11 zones||170 mins||190 mins||205 mins|
|Across 12 zones||180 mins||200 mins||220 mins|
|Across 13 zones||190 mins||210 mins||230 mins|
|Across 14 zones||200 mins||220 mins||240 mins|
|Across 15 zones||210 mins||235 mins||255 mins|
|Across 16 zones||220 mins||245 mins||265 mins|
|Across 17 zones||230 mins||255 mins||280 mins|
|Across 18 zones||240 mins||265 mins||290 mins|
|Across 19 zones||250 mins||275 mins||300 mins|
|Across 20 zones||260 mins||290 mins||315 mins|
* See section above where the journey is close to Central London.
Splitting a journey
Unlike National Rail paper tickets, pay as you go journeys using an Oyster card cannot usually be broken. The only exception to this rule is where you need to leave one station and walk to another nearby one to continue your journey. This is called an out-of-station interchange (OSI). Providing that you do not exceed the time allowed for walking between the stations you can do anything else that you want on the way. Be aware that the walking time ends when you touch in through the gateline, so if you need to wait on a concourse until your train is advertised then this needs to be taken into consideration. There is a full list of OSIs on this page. Note also that the time taken between touch out and touch in is included in the overall journey time.
This page updated 08 September 2013.