H21 Heathrow Airport to Heathrow Airport Terminal 4 via East Bedfont, Feltham
Operated by Diamond Bus South East. First bus 03:01, last bus 00:09. 41 journeys on weekdays. Today, a Sunday: first 03:24, last 23:54. Fares: singles usually capped at £3 — more.
| Stop | 03:01 | 03:24 | 03:54 | 04:24 | 04:54 | 05:24 | 05:54 | 06:24 | 06:54 | 07:24 | 07:54 | 08:24 | 08:54 | 09:23 | 09:53 | 10:23 | 10:53 | 11:23 | 11:53 | 12:23 | 12:53 | 13:23 | 13:53 | 14:23 | 14:53 | 15:23 | 15:53 | 16:23 | 16:53 | 17:24 | 17:54 | 18:24 | 18:54 | 19:24 | 19:54 | 20:24 | 20:54 | 21:24 | 21:54 | 22:24 | 22:54 | 23:24 | 23:54 to Feltham |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Heathrow Terminal 4 (Stop 9) | · | 03:24 | 03:54 | 04:24 | 04:54 | 05:24 | 05:54 | 06:24 | 06:54 | 07:24 | 07:54 | 08:24 | 08:54 | 09:23 | 09:53 | 10:23 | 10:53 | 11:23 | 11:53 | 12:23 | 12:53 | 13:23 | 13:53 | 14:23 | 14:53 | 15:23 | 15:53 | 16:23 | 16:53 | 17:24 | 17:54 | 18:24 | 18:54 | 19:24 | 19:54 | 20:24 | 20:54 | 21:24 | 21:54 | 22:24 | 22:54 | 23:24 | 23:54 |
| St Mary's Church (TW14) (Stop T) | · | 03:27 | 03:57 | 04:27 | 04:57 | 05:27 | 05:57 | 06:27 | 06:57 | 07:27 | 07:57 | 08:27 | 08:57 | 09:27 | 09:57 | 10:27 | 10:57 | 11:27 | 11:57 | 12:27 | 12:57 | 13:27 | 13:57 | 14:27 | 14:57 | 15:27 | 15:57 | 16:27 | 16:57 | 17:28 | 17:58 | 18:27 | 18:57 | 19:27 | 19:57 | 20:27 | 20:57 | 21:27 | 21:57 | 22:27 | 22:57 | 23:27 | 23:57 |
| Bethany Waye (Stop F) | · | 03:29 | 03:59 | 04:29 | 04:59 | 05:29 | 05:59 | 06:29 | 06:59 | 07:29 | 07:59 | 08:29 | 08:59 | 09:30 | 10:00 | 10:30 | 11:00 | 11:30 | 12:00 | 12:30 | 13:00 | 13:30 | 14:00 | 14:30 | 15:00 | 15:30 | 16:00 | 16:30 | 17:00 | 17:31 | 18:01 | 18:29 | 18:59 | 19:29 | 19:59 | 20:29 | 20:59 | 21:29 | 21:59 | 22:29 | 22:59 | 23:29 | 23:59 |
| Westmacott Drive / Allcot Close (southbound) | 03:01 | 03:31 | 04:01 | 04:31 | 05:01 | 05:31 | 06:01 | 06:32 | 07:02 | 07:32 | 08:02 | 08:32 | 09:02 | 09:32 | 10:02 | 10:32 | 11:02 | 11:32 | 12:02 | 12:32 | 13:02 | 13:32 | 14:02 | 14:32 | 15:02 | 15:32 | 16:02 | 16:32 | 17:02 | 17:32 | 18:02 | 18:32 | 19:02 | 19:32 | 20:02 | 20:32 | 21:02 | 21:31 | 22:01 | 22:31 | 23:01 | 23:31 | 00:01 |
| Shore Close (northbound) | 03:05 | 03:35 | 04:05 | 04:35 | 05:05 | 05:35 | 06:05 | 06:35 | 07:05 | 07:35 | 08:05 | 08:35 | 09:05 | 09:36 | 10:06 | 10:36 | 11:06 | 11:36 | 12:06 | 12:36 | 13:06 | 13:36 | 14:06 | 14:36 | 15:06 | 15:36 | 16:06 | 16:36 | 17:06 | 17:36 | 18:06 | 18:36 | 19:06 | 19:36 | 20:06 | 20:36 | 21:06 | 21:35 | 22:05 | 22:35 | 23:05 | 23:35 | 00:05 |
| Bethany Waye (Stop K) | 03:08 | 03:38 | 04:08 | 04:38 | 05:08 | 05:38 | 06:08 | 06:38 | 07:08 | 07:38 | 08:08 | 08:38 | 09:08 | 09:40 | 10:10 | 10:40 | 11:10 | 11:40 | 12:10 | 12:40 | 13:10 | 13:40 | 14:10 | 14:40 | 15:10 | 15:40 | 16:10 | 16:40 | 17:09 | 17:40 | 18:10 | 18:40 | 19:10 | 19:40 | 20:10 | 20:40 | 21:10 | 21:39 | 22:09 | 22:39 | 23:09 | 23:38 | · |
| St Mary's Church (TW14) (Stop X) | 03:10 | 03:40 | 04:10 | 04:40 | 05:10 | 05:40 | 06:10 | 06:40 | 07:10 | 07:40 | 08:10 | 08:40 | 09:10 | 09:42 | 10:12 | 10:42 | 11:12 | 11:42 | 12:12 | 12:42 | 13:12 | 13:42 | 14:12 | 14:42 | 15:12 | 15:42 | 16:12 | 16:42 | 17:11 | 17:42 | 18:12 | 18:41 | 19:11 | 19:41 | 20:11 | 20:41 | 21:11 | 21:40 | 22:11 | 22:41 | 23:11 | 23:40 | · |
| Scylla Road (eastbound) | 03:14 | 03:44 | 04:14 | 04:44 | 05:14 | 05:44 | 06:14 | 06:44 | 07:14 | 07:44 | 08:14 | 08:44 | 09:14 | 09:46 | 10:16 | 10:46 | 11:16 | 11:46 | 12:16 | 12:46 | 13:16 | 13:46 | 14:16 | 14:46 | 15:16 | 15:46 | 16:16 | 16:46 | 17:15 | 17:46 | 18:16 | 18:45 | 19:15 | 19:45 | 20:15 | 20:45 | 21:15 | 21:44 | 22:15 | 22:45 | 23:15 | 23:44 | · |
| Heathrow Terminal 4 (Stop 9) | 03:15 | 03:45 | 04:15 | 04:45 | 05:15 | 05:45 | 06:15 | 06:45 | 07:16 | 07:46 | 08:16 | 08:46 | 09:16 | 09:48 | 10:18 | 10:48 | 11:18 | 11:48 | 12:18 | 12:48 | 13:18 | 13:48 | 14:18 | 14:48 | 15:18 | 15:48 | 16:18 | 16:48 | 17:17 | 17:47 | 18:17 | 18:47 | 19:17 | 19:47 | 20:17 | 20:47 | 21:17 | 21:46 | 22:16 | 22:46 | 23:17 | 23:46 | · |
Each column is one journey, headed by the time it sets off; one that finishes short of the usual end says where ("to …") — not every journey on this route runs the whole way. A · means that journey does not stop there. Times are shown at the route's main timing stops — buses serve all stops in between. Switch a table to All stops for every stop it calls at, or open a stop's own page for live departures there.
Christmas & bank holidays
These dates are not the usual timetable for the day they fall on. They come from the operator’s published data, which for Christmas and New Year is often late or incomplete, so check with Diamond Bus South East before you travel. Everything above is an ordinary week.
Not published yet: Christmas Eve, Christmas Day, Boxing Day, 27 December, 28 December, 29 December, 30 December, New Year's Eve, New Year's Day and 2 January. Operators often publish festive timetables only a few weeks ahead, so check again nearer the date.
Route map
All stops on route H21
H21 towards Heathrow Airport Terminal 4
All 25 stops
- Heathrow Terminal 4 (Stop 9) Heathrow Airport Terminal 4
- Spinney Drive East Bedfont (Stop BD) East Bedfont
- St Mary's Church (TW14) (Stop T) East Bedfont
- Bedfont Green (Stop C) East Bedfont
- Bedfont Library (Stop D) East Bedfont
- New Road (TW14) (Stop E) East Bedfont
- Bethany Waye (Stop F) East Bedfont
- Colonial Road (Stop BE) East Bedfont
- Letchworth Avenue (southbound) East Bedfont
- Westmacott Drive / Stone Crescent (southbound) Feltham
- Westmacott Drive / Allcot Close (southbound) Feltham
- Westmacott Drive / Jubilee Way (southbound) Feltham
- Shore Close (northbound) Feltham
- Tachbrook Road (northbound) East Bedfont
- Colonial Road (Stop BH) East Bedfont
- Bethany Waye (Stop K) East Bedfont
- New Road (TW14) (Stop L) East Bedfont
- Bedfont Library (Stop M) East Bedfont
- Bedfont Green (Stop N) East Bedfont
- St Mary's Church (TW14) (Stop X) East Bedfont
- Spinney Drive East Bedfont (Stop BA) East Bedfont
- Great South West Road East Bedfont (Stop BB) East Bedfont
- Animal Reception Centre (westbound) East Bedfont
- Scylla Road (eastbound) Heathrow Airport
- Heathrow Terminal 4 (Stop 9) Heathrow Airport Terminal 4
Towns & areas on this route
Frequently asked questions
What time is the first H21 bus?
The first H21 departure on weekdays leaves at 03:01 (check the full timetable below for your stop, as times vary along the route — weekend times can differ).
What time is the last H21 bus?
The last H21 on weekdays leaves its first stop at 00:09. Always check the timetable for your specific stop — later stops are reached after this time.
How much does the H21 bus cost?
Most single fares in England are capped at £3 until 31 December 2026 (then £2 from 1 January 2027). Diamond Bus South East day and weekly tickets can work out cheaper if you travel more than twice a day.
Who runs the H21 bus?
The H21 is operated by Diamond Bus South East.
Timetable data from Diamond Bus South East via the Traveline National Dataset. Route names, stop sequences and map geometry come from TfL Open Data. Check before you travel — services can change at short notice.