Comfort is subjective, but on Frontier Airlines in 2026, the seats are best described as "functional and ultra-slim." To keep fares low and maximize passenger capacity, Frontier uses "pre-reclined" seats made of lightweight materials. These seats do not have a recline mechanism, meaning you cannot tilt your seat back, which helps maintain a consistent (albeit tight) legroom for the person behind you. The seat pitch (the space between your seat and the one in front) is typically 28 to 29 inches, which is among the narrowest in the industry. The padding is minimal compared to legacy carriers, and the tray tables are often "half-size," barely large enough for a smartphone or a small drink. If you are over six feet tall, you may find the standard seats quite cramped for flights over two hours. To improve comfort, Frontier offers "Stretch" seating in the front rows, which provides 5–7 inches of additional legroom for an extra fee, a highly recommended upgrade for anyone seeking a more traditional "Economy" level of comfort.