American Airlines leads US carriers in mishandled bags and passenger complaints

Quick summary

The U.S. Department of Transportation’s August 2026 Air Travel Consumer Report — covering January through June 2026 — shows American Airlines posting the highest mishandled baggage rate among major carriers at 0.73 per 100 bags, while Frontier Airlines leads in both wheelchair and scooter mishandling (1.51 per 100) and involuntary denied boardings (1.42 per 10,000 passengers). The industry-wide baggage mishandling rate improved slightly, from 0.52 to 0.49 per 100 bags, but the gap between best and worst performers widened.

Regional subsidiaries and ultra-low-cost carriers dominate the bottom of nearly every metric. Allegiant Air and Delta Air Lines recorded zero involuntary denied boardings and the lowest baggage mishandling rates — a contrast that has direct implications for how travelers should book.

The DOT’s August 2026 Air Travel Consumer Report, released on August 12, covers the first six months of 2026 across mishandled baggage, wheelchair and scooter handling, oversales, and consumer complaints for the 13 largest U.S. carriers. The picture it paints is not a uniform industry story — it is a tale of two operating models, with full-service and point-to-point leisure carriers pulling away from regional subsidiaries and ultra-low-cost operators on nearly every passenger-protection metric.

American Airlines accumulated 9,046 consumer complaints from January through June, more than any other U.S. airline and more than double Delta’s second-place total of 4,354. Those complaints span flight problems, refunds, baggage, customer service, and disability issues — not a single bad quarter in one department, but friction across the board.

For travelers checking bags, flying with mobility devices, or booking on tight connections, the data is actionable. The spread between the best and worst performers is not marginal. Allegiant Air mishandled 0.12 bags per 100 checked; American mishandled 0.73 — a sixfold difference on the same metric, in the same six-month window, under the same federal reporting standard.

The DOT defines a mishandled bag as one lost, damaged, delayed, or pilfered while in the airline’s custody on reportable domestic nonstop scheduled flights. That definition matters: these are not disputed claims or edge cases. They are bags the airlines themselves reported as mishandled.

What the DOT data actually shows, carrier by carrier

The full August 2026 ATCR report covers 213 million enplaned passengers and 1,052,492 mishandled bags across the reporting period. Envoy Air, the regional subsidiary operating under the American Airlines umbrella, recorded the second-highest baggage mishandling rate at 0.72 per 100 — essentially matching its parent. That alignment is not coincidental: regional feeders handle the first and last leg of many connecting itineraries, which is precisely where bags go missing.

Southwest Airlines came in at 0.32 per 100 and JetBlue at 0.31 — both well below the industry average, though JetBlue’s wheelchair and scooter mishandling rate tells a different story. At 1.36 per 100 enplaned, JetBlue ranked second only to Frontier on that metric, a gap that matters enormously for passengers who depend on their mobility device at the destination.

On involuntary denied boardings, the contrast is stark. Frontier’s rate of 1.42 per 10,000 and PSA’s 1.23 per 10,000 sit at the top of a metric where Delta and Allegiant recorded zero — not a low number, but zero. The DOT’s oversales data isolates involuntary bumping specifically, excluding passengers who voluntarily accepted compensation to give up their seat.

American’s June 2026 complaint breakdown illustrates the breadth of its service problems: 476 flight-problem complaints, 376 refund complaints, and 73 denied-boarding complaints in a single month. These are not concentrated in one failure mode.

Why Allegiant outperforms Frontier — and what that tells you about the ultra-low-cost model

Both Allegiant and Frontier operate under the ultra-low-cost banner, yet their DOT metrics diverge sharply. Allegiant’s 0.12 mishandled bags per 100 is the best figure among the 13 largest U.S. carriers. Frontier’s wheelchair mishandling rate is the worst in the dataset.

The difference likely comes down to network architecture. Allegiant concentrates on point-to-point leisure routes — think mid-size cities to Florida or Las Vegas — with limited hub connections. Fewer connections mean fewer bag transfers, and fewer transfers mean fewer opportunities for a bag to miss a flight or a wheelchair to be loaded onto the wrong aircraft. Hub-and-spoke systems, by contrast, route bags through multiple handling points on a single itinerary, compounding the risk at each transfer.

That operational simplicity does not excuse Frontier’s disability handling record. A wheelchair mishandled at a rate of 1.51 per 100 is not a logistics abstraction — it means a passenger arriving at their destination without the device that makes independent movement possible. The DOT’s enforcement history makes clear this is treated as a legal matter, not just a service metric.

How to use this data before your next booking

Frontier and PSA carry the highest involuntary bumping risk in the U.S. market right now, and American’s complaint volume signals broad service friction — not isolated incidents. Here is how to act on that before you book.

• Download the source data: The DOT’s 2026 Air Travel Consumer Reports archive is publicly available. Pull the August 2026 report and compare mishandled baggage and oversales figures for any carrier you are considering — the numbers are carrier-specific and sortable.
• Prioritize Delta, Allegiant, or Southwest if bags matter: All three posted mishandling rates well below the industry average of 0.49 per 100. Allegiant’s 0.12 rate is the benchmark. Southwest’s point-to-point model also limits transfer risk.
• Avoid Frontier and JetBlue if you travel with a wheelchair or scooter: Rates of 1.51 and 1.36 per 100 enplaned are not statistical noise. Republic Airways and Delta are the safest options in the current data.
• On overbooking risk: If you are flying Frontier or PSA and cannot afford to be bumped — a connection, a cruise departure, a medical appointment — check in at the earliest possible moment and arrive at the gate early. Involuntary bumping is rare in absolute terms, but it is not evenly distributed across carriers.
• Document everything with mobility devices: Photograph your wheelchair or scooter before check-in, note its condition on the gate check tag, and request a Wheelchair Damage Report immediately if it arrives damaged. DOT’s Air Carrier Access Act protections require airlines to repair or replace damaged devices — but documentation is your leverage.

Watch: DOT’s next Air Travel Consumer Report will cover July and the first seven months of 2026. If American’s complaint rate and Frontier’s disability mishandling figures do not improve, expect the DOT’s enforcement posture — already active following the American penalty modification in September 2026 — to intensify heading into the winter travel season.

Questions? Answers.