Transit (London Road [Stranraer])
Challoch Junction Golfers Platform
| Pitlanton Viaduct|
Stranraer Harbour Junction
Stockton Haulage Depot [Stranraer]
Old House Point
Cairnryan Junction Yard
Little Gennoch No 2 Level Crossing
Little Gennoch No 1 Level Crossing
|Location names in dark blue are on the same original line.|
|/ /1874||Portpatrick Railway|
Portpatrick to Donaghadee boat stops running. This is in part due to the unsuitability of Portpatrick Harbour. The Stranraer Harbour to Larne Harbour service replaces the abandoned service. Portpatrick to Stranraer remains open.
|/ /1973||Townsend Thoresen|
Townsend Thoresen commence running from Cairnryan to Larne Harbour.
|/ /1987||Townsend Thoresen
P&O European Ferries|
Townsend Thoresen, operator of the Cairnryan to Larne Harbour service amongst others, becomes P&O European Ferries.
|/ /1998||P&O European Ferries
P&O Irish Sea|
The Irish Sea operations of P&O European Ferries becomes P&O Irish Sea. The company was the operator of the Cairnryan to Larne Harbour service amongst others.
|/ /2001||P&O Irish Sea|
The Ardrossan Harbour to Larne Harbour service is relocated to Troon Harbour to Larne Harbour.
|/ /2010||P&O Irish Sea
P&O Irish Sea, operator of the Cairnryan - Larne Harbour and Troon Harbour - Larne Harbour services amongst others, is merged back into P&O and becomes P&O Ferries.
Final season of the Troon Harbour to Larne Harbour service. In 2016 it is announced that the service was not profitable and would not re-start.