Bus from Heathrow Airport to Slough
7 direct routes · 21–85 min · first bus 04:34, last bus 00:10 (weekdays); the A4 and 703 run 24 hours.
Next buses to Slough as of 08:58
Scheduled times at the boarding stop in Heathrow Airport, 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 |
|---|---|---|---|---|---|---|---|---|---|
| A4 | First Berkshire & The Thames Valley | ~24 min | 67 | Sat 47 · Sun 46 | 24 hours | Heathrow Central Bus Station (Stop 20) | Wellington Street Stop H | Colnbrook, Brands Hill & Langley | |
| 703 | Thames Valley Buses | ~30 min | 43 | Sat 43 · Sun 43 | 24 hours | Heathrow Terminal 5 (Stop 7) | Wellington Street Stop H | Colnbrook, Brands Hill & Langley | |
| 7 | First Berkshire & The Thames Valley | ~39 min | 40 | Sat 44 · Sun 37 | 04:34 | 00:10 | Heathrow Terminal 5 (Stop 8) | Wellington Street Stop H | Colnbrook, Brands Hill & Langley |
| 8 | First Berkshire & The Thames Valley | ~85 min | 28 | Sat 26 · Sun 22 | 06:20 | 20:22 | Heathrow Terminal 5 (Stop 8) | Wellington Street Stop H | Stanwell Moor, Staines, Egham, Englefield Green, Runnymede, Old Windsor & 1 more |
| 7X | First Berkshire & The Thames Valley | ~35 min | 22 | weekdays only | 07:05 | 18:05 | Heathrow Central Bus Station (Stop 20) | Wellington Street Stop H | Colnbrook, Brands Hill & Langley |
| 5 | Thames Valley Buses | ~26 min | 19 | Sat 19 · Sun 19 | 04:55 | 23:15 | Heathrow Terminal 5 (Stop 8) | Wellington Street Stop H | Colnbrook, Poyle, Horton & Datchet |
| 704 | Thames Valley Buses | ~21 min | 15 | Sat 15 · Sun 10 | 06:40 | 21:40 | Heathrow Terminal 5 (Stop 7) | Wellington Street Stop H | Colnbrook, Brands Hill & Langley |
Times are for the first boarding point in Heathrow Airport 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 A4 bus, 703 bus, 7 bus, 8 bus, 5 bus or 704 bus timetable.
Fares from Heathrow Airport to Slough
- £3.00 adult single on the A4, 7, 8 and 7X (First Berkshire & The Thames Valley)
- £3.00 adult single, £6.00 return on the 703, 5 and 704 (Thames Valley Buses)
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 Heathrow Airport to Slough?
7 routes run directly from Heathrow Airport to Slough: the A4 (First Berkshire & The Thames Valley), the 703 (Thames Valley Buses), the 7 (First Berkshire & The Thames Valley), the 8 (First Berkshire & The Thames Valley), the 7X (First Berkshire & The Thames Valley), the 5 (Thames Valley Buses), the 704 (Thames Valley Buses). The most frequent is the A4, 67 times each weekday — board at Heathrow Central Bus Station (Stop 20) and get off at Wellington Street Stop H, about 24 minutes.
How long does the bus take from Heathrow Airport to Slough?
Between 21 minutes on the 704 and 85 on the 8, depending on which route you catch and on traffic. It calls at Colnbrook, Brands Hill, Langley on the way.
What time is the first and last bus from Heathrow Airport to Slough?
On weekdays the first direct bus leaves around 04:34 and the last around 00:10 — and the A4 and 703 run 24 hours. Check the route timetables for weekends.
How much is the bus from Heathrow Airport to Slough?
Adult singles from Heathrow Airport to Slough: £3.00 on the A4, 7, 8 and 7X (First Berkshire & The Thames Valley); £3.00 on the 703, 5 and 704 (Thames Valley Buses). 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.
Same journey, other stops
The same trip, starting or ending at a town centre that has its own page here.