Allegiant Air Finally, Allegiant Air is the carrier least likely to lose, damage, delay, or pilfer its customers' luggage. In October 2021, it only mishandled 877 bags or 1.96 per 1,000 enplaned, which was very close to the previous year's statistic of only 1.20 per 1,000 checked bags.

Based on recent 2025 and 2026 data from baggage tracking metrics, Alaska Airlines and Delta Air Lines consistently rank among the best in the U.S. for baggage handling, with the lowest rates of "mishandled" bags per 1,000 passengers. Alaska Airlines is particularly noted for its 20-minute baggage guarantee, where they offer miles or a voucher if your bag isn't on the carousel within 20 minutes of your flight's arrival. Globally, Emirates and Singapore Airlines are often cited for their superior logistics and investment in RFID tracking technology, which significantly reduces the chances of a bag being lost in transit. On the opposite end, budget carriers and airlines operating through major congested hubs (like London Heathrow or Paris Charles de Gaulle) often see higher rates of delay. In terms of "low-cost" carriers, Allegiant Air often reports very low loss rates, largely because they operate point-to-point flights without complex hub-and-spoke transfers where most bags tend to go missing.