Donegal is a large county, so where precisely you are going to in Donegal will make a difference. Depending on traffic, the route you take, and where precisely you are going to, it can take at least 3 to 4 hours, possibly more.
From Dublin to Milford in County Donegal, is about 158 miles, which is about 254 kilometres.
2 - 3 hours depending on traffic and route!
Dublin Port, in 2007 29.5 m tonnes throughput.
From Stockholm, the capital of Sweden, it is about 2 hours 45 minutes to Dublin.
5 hours, 20 minutes - Google Maps
That will depend on things such as when you are doing the journey and the traffic. It can be about 2 hours 15 minutes up to 3 hours if traffic was really bad.
aprox. 2.5 hours
About 6 hours.
6 hours
There are many large towns, but no cities in Donegal.
In good traffic it can be done in about 2 hours.
Donegal has 6 TDs in two constituencies. 3 are in Donegal North-East and 3 are in Donegal South-West.