Southwest Rapid Rewards Priority Card wins Best Co-Branded Credit Card

Budget-minded travelers who frequently fly Southwest Airlines benefit from the Rapid Rewards Premier credit card–no foreign transaction fees, a 40,000-point sign-up bonus, upgraded boardings, $75 annual travel credit and a 7,500-point bonus after each account anniversary.
Photo courtesy of Southwest Airlines

For fans of JetBlue, the JetBlue Plus Card offers six points per dollar spent on JetBlue purchases, two points per dollar at restaurants and grocery stores and one point per dollar everywhere else. Cardholders enjoy no foreign transaction fees, a 40,000-point sign-up bonus, free first checked bags and a 5,000-point bonus on each account anniversary.
Photo courtesy of JetBlue

The JetBlue Card comes with no annual fee and perks like 10,000 bonus points with qualifying purchases, three points per dollar spent on JetBlue, two points per dollar spent at restaurants and grocery stores and a point per dollar everywhere else. Users also enjoy half off eligible inflight purchases.
Photo courtesy of JetBlue

Frequent domestic travelers enjoy perks like priority boarding, free first checked bags and two annual passes to United airport lounges when carrying a United MileagePlus Explorer Card. The card comes with a 40,000-mile sign-up bonus and the chance to earn twice the points on flights booked through United and at restaurants and hotels.
Photo courtesy of United Airlines

Travelers carrying the AAdvantage Aviator Red Mastercard get their first checked bag free for themselves and up to four traveling companions, as well as preferred boarding, discounts on inflight purchases and no foreign transaction fees. Cardholders earn two miles per dollar spend on qualifying purchases and a mile per dollar on everything else.
Photo courtesy of American Airlines

The Southwest Rapid Rewards Plus Card earns users two points per dollar on Southwest Airlines purchases and partner hotel and car rentals, plus a point per dollar spent everywhere else. Cardholders earn 3,000 anniversary points as well.
Photo courtesy of Southwest Airlines

Every mile flown on Frontier earns a mile with the Frontier Airlines World Mastercard. Users can also earn five miles per dollar spent on online Frontier purchases, three miles per dollar at restaurants and a mile per dollar everywhere else. A 40,000 signup bonus gets things off to a rewarding start.
Photo courtesy of Frontier Airlines

Frequent Southwest Airlines travelers benefit from the Rapid Rewards Premier credit card – no foreign transaction fees, a 40,000-point sign-up bonus and a 6,000-point bonus after each account anniversary.
Photo courtesy of Chase

With the United MileagePlus Club Card, travelers earn 50,000 bonus miles with eligible purchases, United Club membership, Premier Access, two free checked bags, two miles per dollar spent on tickets purchased from United and 1.5 miles per dollar spent on everything else.
Photo courtesy of Chase

Frequent Delta flyers benefit from the Gold Delta SkyMiles Credit Card through perks like free checked bags and priority boarding. Other benefits include no foreign transaction fees, an annual fee waiver the first year and a sign-up bonus of up to 30,000 miles with qualifying transactions.
Photo courtesy of American Express