Get an 8-Day Irish Castle Vacation with round-trip airfare, castle hotel accommodations and rental car starting at $1,199 per person (for two people) at Groupon Getaways. This trip is valued starting at $2,199. Prices range up to $1,799, depending on the date options you choose. The trip features a 7-night stay across 4 different Irish castles. The trip is self-guided and the rental car is included. The price is based on double hotel occupancy and tax is included.