While traveling is stressful and hectic, sometimes a flight is ideal to kick back and get ready for a few days of rest and relaxation. For some, that begins with a nice adult beverage. Passengers over age 21 flying on Southwest Airlines can enjoy beer, wine or liquor during the flight. Unlike non-alcoholic beverages, which are free, alcoholic drinks are $5 each, as of the publication date. While you can pay for your drink with a major credit card, you can also pay with complimentary drink coupons. You can get the drink coupons from a variety of sources.

Purchase a Business Select class ticket. These higher-priced tickets include priority boarding, priority security screening and a free coupon for a premium drink on board your flight.

Join the Southwest Rapid Rewards frequent flier program. When you fly 10 or more one-way flight segments in a calendar year, Southwest will send you four complimentary drink coupons if you are over 21 years old.

Sign up for the Southwest Airlines Click n’ Save e-mail newsletter. The airline occasionally offers drink coupon promotions or even includes drink coupons in the newsletter.

Ask for a coupon. If your flight is delayed or you experience another inconvenience, the gate agent or flight attendant might be willing to provide a drink coupon as compensation.

Apply for a Southwest Airlines Rapid Rewards credit card. Card holders receive a number of perks from the airlines and occasionally receive drink coupons in the mail or when they check in for a flight.

Tip

Most drink coupons have an expiration date.

Warning

If you get a drink coupon for purchasing a Business Select fare, it is only good for the day of travel. You will receive your coupon when you check in for the flight.

Drink coupons are not valid for energy drinks.