Bus from Watford (Hertfordshire) to Heathrow Airport
3 direct routes · 46–65 min · first bus 04:10, last bus 02:48 (weekdays).
Next buses to Heathrow Airport as of 06:57
Scheduled times at the boarding stop in Watford, from the operators' timetables — they update automatically. Open the stop for live tracking.
Direct routes
| Route | Operator | Journey time | Weekday journeys | Days | First | Last | Board at | Get off at | Calls at |
|---|---|---|---|---|---|---|---|---|---|
| 724 | Arriva Herts and Essex | ~65 min | 22 | Sat 22 · Sun 10 | 04:48 | 02:48 | Watford Junction Railway Station (Stop 2) | Heathrow Central Bus Station (southbound) | Rickmansworth, Maple Cross, West Hyde, Denham & Hillingdon Heath |
| RA3 | First Berkshire & The Thames Valley | ~46 min | 20 | Sat 20 · Sun 20 | 04:10 | 23:01 | Town Hall (Stop W) | Heathrow Terminal 2 (Stops 11-12) | — |
| 725 | Arriva Herts and Essex | ~65 min | 13 | Sat 11 · Sun 5 | 06:05 | 18:44 | Watford Junction Railway Station (Stop 2) | Heathrow Central Bus Station (southbound) | Rickmansworth, Maple Cross, West Hyde, Denham & Hillingdon Heath |
Times are for the first boarding point in Watford on each route's weekday timetable — open the route for the full timetable, live map and every stop.
The same number runs elsewhere in the UK — see every 724 bus or 725 bus timetable.
Fares from Watford to Heathrow Airport
- £5.70 adult single on the 724 and 725 (Arriva Herts and Essex) — at most £3.00 if in the fare cap
- £3.00 adult single on the RA3 (First Berkshire & The Thames Valley)
Between the stops in the table above. The operators' own published fares, from the Bus Open Data Service; check with the operator before you travel.
Frequently asked questions
Which bus goes from Watford to Heathrow Airport?
3 routes run directly from Watford to Heathrow Airport: the 724 (Arriva Herts and Essex), the RA3 (First Berkshire & The Thames Valley), the 725 (Arriva Herts and Essex). The most frequent is the 724, 22 times each weekday — board at Watford Junction Railway Station (Stop 2) and get off at Heathrow Central Bus Station (southbound), about 65 minutes.
How long does the bus take from Watford to Heathrow Airport?
Between 46 minutes on the RA3 and 65 on the 724, depending on which route you catch and on traffic. It calls at Rickmansworth, Maple Cross, West Hyde, Denham and other stops on the way.
What time is the first and last bus from Watford to Heathrow Airport?
On weekdays the first direct bus leaves around 04:10 and the last around 02:48. Check the route timetables for weekends.
How much is the bus from Watford to Heathrow Airport?
Adult singles from Watford to Heathrow Airport: £5.70 on the 724 and 725 (Arriva Herts and Essex); £3.00 on the RA3 (First Berkshire & The Thames Valley). The 724 and the 725 cost at most £3.00 if they take part in the England fare cap. Prices are the operators' own published fares on the Bus Open Data Service — check with the operator before you travel. Most single fares in England are capped at £3 until 31 December 2026, then £2 from 1 January 2027.