Deciding on a credit card for the best travel perks may have just gotten easier thanks to a new study.

According to J.D. Power's 2024 U.S. Credit Card Satisfaction Study, Southwest's cards by Chase reigned supreme in first and second place in the co-branded credit card category.

The Southwest Rapid Rewards Premier card, which has a $99 annual fee, took the No. 1 spot and the Southwest Rapid Rewards Priority card, which has a $149 annual fee, followed. A major perk for Southwest cardholders includes its coveted Companion Pass which can be earned just by spending on the cards.

The Delta SkyMiles Platinum American Express card took the third spot in co-branded credit cards thanks to its benefits that include priority boarding, a domestic companion certificate each year after renewal, and a free first checked bag on Delta flights. The card has an annual fee of $350.

In a separate category of cards without an annual fee, the Hilton Honors American Express card received the second-highest customer satisfaction rating mainly due to its popular bonuses and earning rates. Cardholders earn 7X points per $1 spent at a hotel or resort within the Hilton portfolio, 5X points per $1 spent on purchases at U.S. restaurants, U.S. supermarkets, and U.S. gas stations, and 3 points per dollar for other purchases. Cardholders also enjoy Hilton Silver Elite status and purchase and travel insurance.

The Apple Card and Costco Anywhere Visa by Citi rounded out the top three for co-branded cards with no annual fee.

The study included 38,852 credit card customers who were surveyed between June 2023 and June 2024. Customers were asked to rate their satisfaction with credit cards based on seven factors: account management, benefits, customer service, new account, rewards earning, rewards redeeming, and terms.

Travel + Leisure also recently released a list of credit cards perfect for frequent fliers, according to experts.