The 298 connects Hertfordshire to North London and even though it leaves Greater London, TfL's tariff applies throughout. It runs every 20 minutes Mon-Sat daytimes and half-hourly evenings and Sundays. It is part of Transport for London's London Bus Network. Click here to discover other bus routes across the South East.
The 298 starts right outside Arnos Grove tube station (TfL Zone 4) and calls at stops B, C, D and F. This is an extract from the local TfL map:
New Southgate railway station, also in Zone 4, is also nearby.
Southgate tube station is the last in Zone 4 on the Piccadilly Line heading north away from Central London. The 298 serves the bus stops circled in blue on this TfL map extract:
Cockfosters is the last station on the Piccadilly Line, but is in Zone 5, so you'll probably be able to save a bit of money by connecting between Tube and bus at Southgate.
Just outside Cockfosters is Trent Park, perfect for a walk and a picnic.
Just over the M25, the 298 terminates in Potters Bar. Why not try the town's best rated restaurant, Bistro The Walk on the High Street.
See a full timetable for the 298 here.
Here are your links for live bus times towards Potters Bar from:
Arnos Grove, stop B
Southgate, stop G
Cockfosters, stop A
Potters Bar Station, stop C
...and back towards Arnos Grove:
Potters Bar Station, stop C
Cockfosters, stop B
Southgate, stop C
There's a live map of buses on route 298 here.
Diagram of the 298 and major connecting routes. Not to scale and hugely simplified. Red routes are on the London Bus Network and accept Oyster. Green routes are not part of TfL and do not accept Oyster.
From Arnos Grove, you can use the Piccadilly Line or any of the bus routes on this map to connect with the 298.
New Southgate railway station: Click for departure list, live departure boards, TfL Oyster fares and fares to outside Greater London.
Southgate is also on the Piccadilly Line. Here is the bus connections map.
Cockfosters, at the end of the Piccadilly Line has these bus connections.
See a map of all buses in North West London here.
From Potters Bar, you can use the following buses to connect with the 298:
See a map of all buses in Potters Bar here and all buses in Hertfordshire here.
Potters Bar rail station: Click for departure list, live departure boards and fares.
Click here for the full tube & rail map. Here's an extract with the 298's route marked:
Here's a more detailed map of the rail line through Potters Bar:
Fares are set by Transport for London. If you're paying by cash, there's a flat fare of £2.40. On Oyster it's £1.45 with a bus/tram daily price cap of £4.40. It's also included in all TfL Travelcards and Oyster daily price caps regardless of for which zones they are valid, meaning you can use London's buses to travel to all zones while only paying for those in which you choose to travel by rail.
Although part of the 298 route is in Hertfordshire, the Intalink Explorer multi-operator ticket is not valid on this route.
Between Arnos Grove and Cockfosters, you can also use the Underground's Piccadilly Line. A single journey between the two by tube costs £1.50 off-peak or £1.60 peak on Oyster or £4.50 cash.
Between Potters Bar and New Southgate, you can use the train. See links above for the departure times. Single fares range from £2.90 to £4.30 and return fares from £3 to £5 depending on when you travel.
All of the information in this post is correct at the time of writing, but please check the relevant links before travelling.