American Airlines, Aer Lingus, and United have round-trip flights from Dallas (DFW) to Shannon Ireland, or Krakow Poland (SNN, KRK) for $478-$535 with a connection. Shannon flights July, August, January, and February. Krakow flights in August and also between October and March. Extended weekends available.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.

Read More Cheap Flights: Dallas to Shannon Ireland, or Krakow Poland $478-$535 r/t [Jul-Aug, Jan-Feb / Aug, Oct-Mar] – American Airlines / Aer Lingus / United

Aer Lingus Airfare Deals American Airlines Oneworld Shannon Star Alliance United

Aer Lingus Airfare Deals American Airlines Oneworld Shannon