Southwest Airlines offers downloads of its 40th Anniversary Sampler MP3 Album for free at iTunes via the directions below. That's the lowest price we could find for these songs. (Most of these tracks normally cost 99 cents each at iTunes.) This 40-track album features music by Matthew Morrison, Lenny Kravitz, Easton Corbin, and more. To get this deal:

1. Click here and enter your email address to receive a unique coupon code in your inbox
2. click here to launch iTunes and select the "Redeem" link on the right
3. enter your unique code to begin downloading the sampler for free