Bus from Castleknock to Dublin
11 direct routes · 11–59 min · first bus 05:58, last bus 00:01 (weekdays).
Next buses to Dublin as of 04:52
Scheduled times at the boarding stop in Castleknock, 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 |
|---|---|---|---|---|---|---|---|---|---|
| 39A | Bus Átha Cliath – Dublin Bus | ~58 min | 117 | Sat 93 · Sun 77 | 24 hours | Morgan Place | Donnybrook Dpot | Ashtown | |
| 37 | Bus Átha Cliath – Dublin Bus | ~51 min | 59 | Sat 43 · Sun 30 | 05:58 | 23:48 | Castleknock | Adelaide Road | Ashtown |
| 39 | Bus Átha Cliath – Dublin Bus | ~29 min | 42 | Sat 36 · Sun 32 | 06:20 | 00:01 | Morgan Place | Bachelors Walk | Ashtown |
| 38 | Bus Átha Cliath – Dublin Bus | ~43 min | 37 | Sat 35 · Sun 31 | 06:47 | 23:39 | Morgan Place | Kildare Street | Ashtown |
| 38A | Bus Átha Cliath – Dublin Bus | ~39 min | 31 | Sat 34 · Sun 30 | 09:26 | 23:52 | Morgan Place | Kildare Street | Ashtown |
| 70 | Bus Átha Cliath – Dublin Bus | ~30 min | 29 | Sat 18 · Sun 16 | 06:30 | 23:50 | Morgan Place | Bachelors Walk | Ashtown |
| 38B | Bus Átha Cliath – Dublin Bus | ~45 min | 8 | weekdays only | 06:26 | 09:09 | Morgan Place | Kildare Street | Ashtown |
| 870 | Express Bus | ~11 min | 5 | weekdays only | 15:17 | 18:27 | Morgan Place | Ormond Quay Upr | — |
3 occasional services — once or twice a day · 39X, 38D, 70D
Often school, college or market-day journeys — check the route before relying on one.
| Route | Operator | Journey time | Weekday journeys | Days | First | Last | Board at | Get off at | Calls at |
|---|---|---|---|---|---|---|---|---|---|
| 39X | Bus Átha Cliath – Dublin Bus | ~59 min | 2 | weekdays only | 07:27 | 07:52 | Morgan Place | Clare Street | Ashtown |
| 38D | Bus Átha Cliath – Dublin Bus | ~43 min | 1 | weekdays only | 17:31 | 17:31 | Morgan Place | Kildare Street | Ashtown |
| 70D | Bus Átha Cliath – Dublin Bus | ~8 min | 1 | weekdays only | 07:45 | 07:45 | Castleknock | Baggot Road | Ashtown |
Times are for the first boarding point in Castleknock 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 39A bus, 37 bus, 39 bus, 38 bus, 38A bus, 70 bus, 38B bus or 870 bus timetable.
Frequently asked questions
Which bus goes from Castleknock to Dublin?
11 routes run directly from Castleknock to Dublin: the 39A (Bus Átha Cliath – Dublin Bus), the 37 (Bus Átha Cliath – Dublin Bus), the 39 (Bus Átha Cliath – Dublin Bus), the 38 (Bus Átha Cliath – Dublin Bus), the 38A (Bus Átha Cliath – Dublin Bus), the 70 (Bus Átha Cliath – Dublin Bus), the 38B (Bus Átha Cliath – Dublin Bus), the 870 (Express Bus), the 39X (Bus Átha Cliath – Dublin Bus), the 38D (Bus Átha Cliath – Dublin Bus), the 70D (Bus Átha Cliath – Dublin Bus). The most frequent is the 39A, 117 times each weekday — board at Morgan Place and get off at Donnybrook Dpot, about 58 minutes.
How long does the bus take from Castleknock to Dublin?
Between 11 minutes on the 870 and 59 on the 39X, depending on which route you catch and on traffic. It calls at Ashtown on the way.
What time is the first and last bus from Castleknock to Dublin?
On weekdays the first direct bus leaves around 05:58 and the last around 00:01. Check the route timetables for weekends.
How much is the bus from Castleknock to Dublin?
Fares follow the National Transport Authority's fare structure — a TFI Leap Card is significantly cheaper than cash, with daily and weekly caps on most services.