721 Castlebar to Swords via Athlone, Dublin
Operated by Citylink. First bus 04:30, last bus 02:00. 16 journeys on weekdays. Fares: TFI zonal, cheaper with a Leap Card — more.
Night bus — overnight departures 22:00–07:00. Every night. Nights are the night you set out on, so a 01:30 bus on Saturday morning counts as Friday. All night buses.
Wanted a different 721? 6 other bus routes are numbered 721 elsewhere in the UK — see every 721 bus timetable by area.
| Stop | 00:45 | 02:00 | 04:30 | 07:55 | 09:30 | 10:50 | 14:40 | 16:50 |
|---|---|---|---|---|---|---|---|---|
| Castlebar | 00:45 | 02:00 | 04:30 | 07:55 | 09:30 | 10:50 | 14:40 | 16:50 |
| Claremorris | 01:15 | 02:30 | 05:00 | 08:30 | 10:05 | 11:25 | 15:15 | 17:25 |
| Tuam Holy Cross Col | 01:45 | 03:00 | 05:30 | 08:55 | 10:30 | 11:50 | 15:40 | 17:50 |
| TUS East Campus | 02:45 | 04:00 | 06:30 | 09:55 | 11:30 | 12:50 | 16:40 | 18:50 |
| Bachelors Walk | · | · | · | 11:25 | 13:00 | 14:20 | 18:10 | 20:20 |
| Airport Zone 11 | 04:15 | 05:30 | 08:00 | 11:45 | 13:25 | 14:45 | 18:45 | 20:45 |
Each column is one journey, headed by the time it sets off. 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.
Route map
All stops on route 721
721 towards Swords
All 6 stops
- Castlebar Castlebar
- Claremorris Claremorris
- Tuam Holy Cross Col Tuam
- TUS East Campus Athlone
- Bachelors Walk Dublin
- Airport Zone 11 Swords
721 towards Castlebar
All 6 stops
- Airport Zone 11 Swords
- Crampton Quay Dublin
- TUS East Campus Athlone
- Tuam Holy Cross Col Tuam
- Claremorris Claremorris
- Castlebar Castlebar
Towns & areas on this route
Frequently asked questions
What time is the first 721 bus?
The first 721 departure on weekdays leaves at 04:30 (check the full timetable below for your stop, as times vary along the route — weekend times can differ).
What time is the last 721 bus?
The last 721 on weekdays leaves its first stop at 02:00. Always check the timetable for your specific stop — later stops are reached after this time.
How much does the 721 bus cost?
Fares on the 721 are set under the National Transport Authority's fare structure. Paying with a TFI Leap Card is significantly cheaper than cash, with daily and weekly caps on most city services.
Who runs the 721 bus?
The 721 is operated by Citylink.
Timetable data from Citylink via Ireland's National Transport Authority. Check before you travel — services can change at short notice.