Delta is currently running an excellent deal where you can purchase a ticket to Spain from Dallas around $480 during Thanksgiving Break. This is an excellent sale deal which may disappear anytime soon. If you are planning a trip to Europe during Thanksgiving break, book your ticket as soon as possible.
Sample price from Dallas (DFW) to Barcelona (BCN) available at delta.com
Sample price from Dallas (DFW) to Madrid (MAD) available at delta.com
Use your travel bonus category card like American Express Gold Premier (3x) / Chase Sapphire (2x) or American Express Gold Delta Sky Miles card (2x) or American Express Platinum Delta sky miles card (2x) or American Express Delta Reserve card (2x) to earn additional points on your airline ticket price.
If you use your American Express Gold Delta Sky Miles card or American Express Platinum Delta sky miles card or American Express Delta Reserve card, the first checked in baggage is free for each passenger in your group.