Watford to London: 16 minutes and £11.10 by train

Watford has three separate railways into London and they are not the same journey. Watford Junction puts you into London Euston in 16 minutes on the quickest weekday train. Watford Underground, at the far end of Cassiobury Park, takes 38 minutes to Baker Street on the Metropolitan line. Watford High Street sits on the Lioness line and takes 49 minutes to Euston, but it is the cheapest of the three on contactless.

Which one is right depends on where in London you are going and how much of the journey you want to pay National Rail prices for. Times and fares on this page were checked on 10 August 2026 against the published weekday timetable.

The 19 to 20 September closure is over: trains are running normally

Updated 22 September 2026: this closure has been and gone, and the line reopened on time. Network Rail lifted the Oxhey Grange footbridge out in a single operation on Sunday 20 September, using a 100 metre heavy-lift crane rated at 1,200 tonnes, and reopened all four West Coast Main Line tracks and the Lioness line beneath them at 4pm that day. Watford Junction to Euston is back to its normal timetable, and the 16-minute fast train below is running again.

The bridge itself is gone for good. It was closed to the public on 26 July 2026 after an inspection found it had deteriorated faster than expected, and Network Rail decided removal was the only safe option (Network Rail media centre).

What follows is the record of what ran that weekend, kept because the same arrangements are what Network Rail reaches for whenever this stretch is shut.

What ran instead, from National Rail’s own engineering works listing:

• Avanti West Coast runs nothing between Euston and Milton Keynes Central until 16:00, with an hourly service from Milton Keynes to Scotland, Manchester and Liverpool instead.
• London Northwestern Railway runs nothing between Euston and Watford Junction until 16:00. There is an hourly shuttle between Milton Keynes Central and Watford Junction, so you can still move north.
• The Lioness line is cut back to two trains an hour between Euston and Willesden Junction.
• Rail replacement buses run Harrow and Wealdstone to Watford Junction, and Potters Bar to Watford Junction.
• The Bakerloo line runs normally, which is the practical answer for most people: bus or Overground to Harrow and Wealdstone, then the Bakerloo in.

The lesson worth keeping: the Metropolitan line from Watford Underground is a separate railway and was not part of that closure. Whenever the West Coast Main Line shuts south of Watford Junction, Baker Street in 38 minutes is the route that keeps working. The Southern service from Watford Junction to Clapham Junction, by contrast, shares the Lioness line tracks as far as Willesden Junction, so it goes down with them.

Watford to London: first train, last train and how many run

London Northwestern Railway publishes its own route figures, read on 22 September 2026 from its Watford to London page:

The number that matters there is 165 trains a day, which works out at about seven an hour across the day. On this route you do not check a timetable, you walk to the station. And note the last train: 04:13, not some time before midnight. Watford Junction is on a line that barely stops, which is the single biggest practical difference between it and the Metropolitan line, whose last trains go at a normal hour.

How long each route actually takes

The 16-minute run is the 18:36 from Watford Junction, arriving Euston 18:52. In the morning peak the 07:01 does it in 21 minutes and the 08:02 in 20. Every one of those is London Northwestern Railway, running through from Birmingham, Milton Keynes or Tring; the timetable calls them LNR and West Midlands Trains. The 51-minute trains are the Lioness line, the Overground service that stops everywhere down to Euston through Bushey, Carpenders Park, Harrow and Wembley.

What a single journey costs

Contactless works at all three stations, so most people never buy a paper ticket at all. The number worth knowing is the £2.40 gap between the two main line stations: pay-as-you-go from Watford High Street is £8.70 anytime against £11.10 from Watford Junction, because the High Street station sits inside the TfL zonal system at Zone 8 and Watford Junction does not.

You do not have to give up the fast train to get that fare. Start at Watford High Street, ride one stop to Watford Junction and change onto the LNR fast train, and the 09:03 gets you to Euston at 09:31. That is 28 minutes for £8.70, against 21 minutes for £11.10 from Watford Junction itself. Whether that is worth an eight-minute walk from the top of the High Street is a personal calculation; over a five-day week it is £24.

Season tickets

Read that table carefully before you buy. The London Terminals season at £4,072 is the one nearly everyone wants: it covers the fast trains into Euston. The Victoria and Waterloo seasons cost £360 and £608 more and are priced via Kensington Olympia, meaning the slow Southern route round the west of London, not a faster way in. If what you actually want is a season plus the Tube at the other end, the Zones 1 to 6 travelcard version is £4,432, a premium of £360 a year over the Terminals ticket.

The Metropolitan line, and why it is not the fast option

Watford Underground station is on Cassiobury Park Avenue, about a mile and a half from the town centre, and it is the end of a Metropolitan line branch. It sits in Zone 7, which is why the fare is lower than the main line: the TfL journey planner prices a 9am departure at £7.10 and puts the journey to Baker Street at 38 minutes direct.

That is worth having if your destination is on the Metropolitan line itself, or you work near Baker Street, Euston Square, King’s Cross or Liverpool Street. It is not a substitute for Watford Junction. The fast Euston train does the trip in less than half the time.

The disused railway between Croxley and Watford, which would have carried the abandoned Metropolitan line extension into the town centre, is still protected. What happens to it is being looked at by Hertfordshire County Council as the Watford to Croxley Link, with Atkins running a feasibility study into what could use the corridor. There is no committed scheme and no date.

The other two lines out of Watford Junction

Southern to East Croydon. One train an hour runs south round the west of London through Kensington Olympia, Clapham Junction and East Croydon. The 09:52 reaches Clapham Junction at 10:35 and East Croydon at 11:01, and traintimes puts Gatwick Airport within reach by 11:08. It is genuinely useful if you are heading south and want to avoid crossing central London with luggage.

The Abbey Line to St Albans. A single-track branch, one train an hour at 45 minutes past, Watford Junction to St Albans Abbey in 17 minutes, run by London Northwestern Railway. It is the only direct public transport between the two towns and it stops at Bricket Wood, How Wood, Park Street and Garston on the way.

Avanti West Coast is listed by Transport for London among the operators calling at Watford Junction, but no Avanti service appeared in the London direction on the weekday timetable checked for this page. Plan around London Northwestern.

Watford to London by road, and where the charges start

The train is 16 minutes at its fastest. The same trip by car is about 20 miles and, with nothing in the way, roughly 42 minutes on OpenStreetMap routing from Watford town centre to Trafalgar Square, checked 7 September 2026. That is a best-case figure on an empty A41 and M1, which is not a road anyone gets on a weekday.

The bigger difference is what you pay before you have parked. Watford is in Hertfordshire, outside Greater London, so a drive into town crosses two charging boundaries the train does not:

• ULEZ, £12.50 a day if the vehicle does not meet the emissions standard. The zone covers every London borough and runs 24 hours a day, every day except Christmas Day. It stops at the M25 rather than including it, so you are outside it at Watford and inside it not long after joining the M1 southbound (Transport for London).
• Congestion Charge, £18 a day, or £21 if you pay by midnight of the third day after travelling, for driving in the central zone 07:00 to 18:00 Monday to Friday and 12:00 to 18:00 at weekends and bank holidays (Transport for London).

Set that against the fares above. A compliant car into the central zone on a weekday costs £18 before fuel and parking; a non-compliant one costs £30.50. The £11.10 contactless single to Euston takes 16 minutes and needs no parking space at the other end, and five days of Congestion Charge alone, £90, is more than a week’s season ticket.

Where driving does win is the trip that is not into the centre. If you are heading for the M25 corridor, Heathrow or somewhere in outer London off the rail line, the car avoids a change at Euston, and neither charge applies unless you cross into the central zone.

Getting to the Harry Potter studio tour

The single most common reason visitors arrive at Watford Junction is Warner Bros. Studio Tour London at Leavesden. The shuttle bus leaves from the station, takes about 15 minutes, runs at least every 30 minutes from 9.20am, and is included in the price of your tour ticket. You show the driver your booking confirmation. There is free parking at the studios if you drive instead.

Parking at Watford Junction

The station car park is run by Saba on behalf of London Northwestern Railway, at Station Road, WD17 1EU, with 732 standard spaces and 19 Blue Badge bays.

A weekday commuter paying the £11.50 daily rate five days a week would spend more on parking over a year than on the season ticket itself. The 12-month parking season at £1,290 is the sane version of that, and the drop-off is free for 20 minutes. Blue Badge holders park free in the marked bays.

Frequently asked questions

Which Watford to London train should I get?

The Watford Junction to London Euston fast service, which takes 16 to 22 minutes and is the quickest way in by a wide margin. Use the Lioness line from the same station if you want Zone 1 stations along the way rather than Euston, and the Metropolitan line from Watford Underground only if Baker Street or the Marylebone end is your destination.

How long does the train take from Watford to London?

16 minutes on the fastest weekday train from Watford Junction to London Euston, and 20 to 22 minutes on a typical fast one. The Lioness line stopping service from the same station takes 51 minutes, and the Metropolitan line from Watford Underground takes 38 minutes to Baker Street.

How much is a train ticket from Watford to London?

Contactless pay-as-you-go from Watford Junction to Euston is £11.10 anytime and £7.20 off-peak. An Anytime Day Single is £13.40 and an Anytime Day Return £23.00. From Watford High Street, contactless is £8.70.

How much is an annual season ticket from Watford to London?

£4,072 to London Terminals from Watford Junction, £101.80 a week or £391.00 a month. Adding Zones 1 to 6 travelcard rights takes the annual to £4,432.

Can I use contactless or Oyster at Watford Junction?

Yes. Contactless and Oyster are valid at Watford Junction, Watford High Street and Watford Underground. Watford High Street is Zone 8 and Watford Underground is Zone 7; Watford Junction sits outside the numbered zones and is charged as a National Rail pay-as-you-go fare.

Which station is closest to Watford town centre?

Watford High Street, at the bottom of the pedestrianised High Street. Watford Junction is about ten minutes’ walk north of the centre, and Watford Underground is a mile and a half west, at the edge of Cassiobury Park.

Is there a direct train from Watford to Gatwick?

Not one train the whole way, but Southern runs hourly from Watford Junction through Kensington Olympia and Clapham Junction to East Croydon, where Gatwick services are frequent. The 09:52 reaches Clapham Junction at 10:35 and Gatwick by 11:08.

Sources

• OSRM routing over OpenStreetMap data, Watford town centre to Trafalgar Square, checked 7 September 2026, for the 20 miles and the free-flowing 42 minutes

• Transport for London, Congestion Charge and Ultra Low Emission Zone, checked 7 September 2026

• traintimes.org.uk, which carries the National Rail timetable and walk-up fares, for all journey times and single fares, checked 10 August 2026.

• Trainline season ticket prices, Watford Junction to London for the weekly, monthly and annual figures.
• Transport for London journey planner and station data for the Metropolitan line time, the £7.10 fare and the Zone 7 and Zone 8 designations.
• Saba, Watford Junction Station Car Park for the parking tariff and space numbers.
• Warner Bros. Studio Tour London, getting here for the shuttle bus.
• Hertfordshire County Council, Watford to Croxley Link for the disused corridor.

Fares and timetables change. Confirm against the linked sources before you travel or buy. What the roads are doing instead is on Watford roadworks and travel, and what a house near each station costs is on Watford house prices.