Best way to travel between Dublin, Ireland and Warsaw

A: Dublin, Ireland

B: Warsaw

Travel Modes: Price; Distance; Duration; CO2

bus: $194.0; 3492.48 km; 64h 17mins; 104.77 kgs

train: $342.0; 2146.25 km; 40h 47mins; 113.75 kgs

flight: $354.0; 1983.45 km; 8h 33mins; 214.21 kgs

drive: $454.0; 2240.94 km; 27h 14mins; 286.84 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Bus	3492.48 km	64h 17mins	601 PLN	194.0
Train	2146.25 km	40h 47mins	1,059 PLN	342.0
Flight	1983.45 km	8h 33mins	1,096 PLN	354.0
Drive	2240.94 km	27h 14mins	1,406 PLN	454.0

Take Bus from Dublin to Arad: Time: 41h 24mins Cost: 433 PLN; $ 126.0 - 154.0 USD CO2 Emission: 70.88 kgs
Take Bus from Arad to Budapest: Time: 5h 37mins Cost: 34 PLN; $ 9.9 - 12.1 USD CO2 Emission: 9.45 kgs
Take Bus from Budapest to Warsaw: Time: 15h 14mins Cost: 124 PLN; $ 36.0 - 44.0 USD CO2 Emission: 24.46 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Dublin, Ireland and Warsaw is to travel by bus, which will cost about 601 PLN or 174.60 USD.