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Dublin Bus Route 42D: Portmarnock - DCU

Bus timetable and route map · Monday to Friday

Dublin Bus Route 42D (Portmarnock - DCU) is a bus route in Dublin city and county, serving DCU Helix, Civic Centre, Malahide Com School, Portmarnock Br and Broomfield. Monday to Friday the first bus is at 07:30 and the last at 17:10. Updated 4 October 2026.

Timetable summary

Monday to Friday

First
07:30
Last
17:10
Buses
2

Saturday, Sunday

No service

Public holidays

  • Mon 26 Oct (Last Monday in October): no service

Route 42D to Hazel Court

Destination sign “Strand Road” · from DCU Helix · 32 stops

Monday to Friday

Times at the main stops. 24-hour clock. A dot means that trip does not stop there.

DCU HelixCivic CentreWatersideSt Sylvester's SchMalahide Com SchoolBlackberry LaneHazel Court
17:1017:2117:4617:5818:0718:1518:18
All 32 stops in this direction
  1. DCU Helix #7571
  2. Ballymun Library #92
  3. Gateway Avenue #93
  4. Civic Centre #94
  5. Nursing Home #126
  6. Santry Cross #6182
  7. Gulliver's Retail #322
  8. Holywell Cres #6312
  9. Holywell Dr #7197
  10. Holywell Vw #7195
  11. Feltrim Business Pk #3653
  12. Waterside #6055
  13. Chamley Park #1073
  14. Estuary Road #3641
  15. Seabury #3642
  16. Yellow Walls Rd #3643
  17. St Sylvester's Sch #3583
  18. Hanlon's Lane #3584
  19. Malahide Stn #3585
  20. St Andrew's Church #3625
  21. Hill Drive #3626
  22. Seamount Rd #3627
  23. Malahide Com School #3628
  24. Torcaill #6052
  25. Redfern Ave #3613
  26. Wendell Avenue #3615
  27. Burrow Court #3594
  28. Blackberry Lane #3595
  29. Blackberry Rise #3596
  30. The Dunes #3597
  31. Portmarnock Village #3598
  32. Hazel Court #4465

Route 42D to DCU Helix

Destination sign “DCU” · from Portmarnock Br · 32 stops

Monday to Friday

Times at the main stops. 24-hour clock. A dot means that trip does not stop there.

Portmarnock BrThe Velvet StrandBroomfieldSt Sylvester's SchWatersideCivic CentreDCU Helix
07:3007:3307:4007:4807:5808:2308:32
All 32 stops in this direction
  1. Portmarnock Br #943
  2. Portmarnock Village #3599
  3. The Dunes #3600
  4. Blackberry Rise #3601
  5. Blackberry Lane #3602
  6. The Velvet Strand #3604
  7. Redfern Ave #3607
  8. Torcaill #6051
  9. Malahide Golf #6053
  10. Blackwood Ln #7327
  11. Broomfield #3629
  12. Malahide Com School #3630
  13. Seamount Rd #3631
  14. Hill Drive #3632
  15. St Andrew's Church #3633
  16. Malahide Stn #3634
  17. Hanlon's Lane #3635
  18. St Sylvester's Sch #3636
  19. Yellow Walls Rd #905
  20. Seabury #4331
  21. Estuary Road #4339
  22. Chamley Park #7692
  23. Waterside #6010
  24. Feltrim Business Pk #3656
  25. Holywell Vw #7194
  26. Holywell Cres #6310
  27. Holywell Cl #6311
  28. Civic Centre #112
  29. Trinity Comp School #113
  30. Ballymun Road #114
  31. DCU Collins Avenue #1646
  32. DCU Helix #7571

Route 42D route map

Questions about Dublin Bus Route 42D

What time is the first Route 42D bus?

Monday to Friday: 07:30.

What time is the last Route 42D bus?

Monday to Friday: 17:10. A time after midnight belongs to the evening before.

Does Route 42D run at weekends?

Saturday: no service. Sunday: no service.

Does Route 42D run on public holidays?

Last Monday in October (Mon 26 Oct): no service.

Where does Route 42D go?

Route 42D serves DCU Helix, Civic Centre, Malahide Com School, Portmarnock Br and Broomfield. The full list of stops for each direction is below the timetables.

Are these live bus times?

No. They are the published timetable from National Transport Authority’s open data, refreshed 4 October 2026. A bus can run early or late, and disruptions are not shown.

Source: National Transport Authority open data (GTFS schedule for Dublin Bus), used under CC BY 4.0. Refreshed 4 October 2026; the current timetable runs to 3 October 2027. These are scheduled times; disruptions and service alerts are published by the operator. Changes made: times reformatted into timetables and departure lists.

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