Delta has round-trip flights from Dallas (DAL/DFW) to Rome, Barcelona, Amsterdam, Dublin, or Madrid (FCO, BCN, AMS, DUB, MAD) for $518-$676with a connection. 7-day minimum stay required. No Thanksgiving dates.

These fares have been on and off for the past few days. They lasted less than a full day last time.

Rome: Flights April, May, August, September, October, and November. 
Barcelona: Flights April, May, August, September, October, and November. 
Amsterdam: Flights April, May, August, September, and October.
Dublin: Flights April, May, August, September, and October. 
Madrid: Flights April, May, August, September, October, and November.

Read More Cheap Flights: Dallas to Rome, Barcelona, Amsterdam, Dublin, or Madrid $518-$575 r/t [Apr-May, Aug-Nov] (These fares have been on/off for the past few days) – Delta

Delta has round-trip flights from Dallas (DFW/DAL) to Rome, Dublin, Amsterdam, or Barcelona (FCO, DUB, AMS, BCN) for $518-$574 with a connection. 7-day minimum stay required. No major holiday dates.

Rome: Flights April, May, August, September, October, and November.
Dublin: Flights April, May, August, September, and October.
Amsterdam: Flights April, May, August, September, and October.
Barcelona: Flights April, May, August, September, October, and November.

A Carry-on bag and also a personal item is allowed for free on Delta. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.

Read More Cheap Flights: Dallas to Rome, Dublin, Amsterdam, or Barcelona $518-$574 r/t [dates vary, read full blog post] (No Major Holidays) – Delta