An airline internal no-fly list is a private ban maintained by a single carrier against passengers it considers a safety risk on its own flights. Federal law lets airlines make that call under 49 U.S.C. § 44902(b), which allows any carrier to refuse to transport a passenger it decides “is, or might be, inimical to safety.”1Office of the Law Revision Counsel. 49 USC 44902 – Refusal to Transport Passengers and Property No criminal conviction is required, no government order, and no outside review. The airline decides, and the ban can run from a few months to the rest of your life.
Not the Same as the Federal No Fly List
The federal No Fly List is a government security tool run by the FBI’s Terrorist Screening Center and checked by TSA before boarding. It targets people suspected of terrorism-related activity. An airline’s internal list is something else entirely: a private business decision by one carrier about one passenger’s conduct on its flights. A Delta ban does not put you on United’s list, and neither has anything to do with national security screening. That distinction matters, because the response is different. A federal watchlist problem goes through DHS redress channels. A private ban goes through the airline’s corporate security or legal department.
The Legal Backing
Two layers of authority sit behind every internal ban. The first is the statute. Section 44902(b) gives carriers explicit permission to refuse passengers on safety grounds, and courts read the language broadly. The airline doesn’t have to prove you were dangerous. It only has to show it decided you might be.
The second is the Contract of Carriage, the terms every passenger accepts when buying a ticket. These contracts give airlines wide latitude to refuse service for disruptive behavior, ignoring crew instructions, intoxication, and a long list of related conduct. Most passengers never read them. Courts routinely enforce them. When a ban is challenged, the airline points to both the statute and its own contract, and that combination is hard to overcome.
What Gets You Banned
Violence and Threats
Physical altercations are the fastest way onto a permanent ban list. Hitting, shoving, or spitting on a crew member or another passenger will almost certainly end your relationship with that airline. Beyond the ban itself, assaulting or intimidating a flight crew member is a federal crime under 49 U.S.C. § 46504, carrying up to 20 years in prison, or life if a dangerous weapon is involved.2Office of the Law Revision Counsel. 49 USC 46504 – Interference With Flight Crew Members and Attendants Verbal threats that disrupt crew duties fall under the same statute, and airlines treat them nearly as seriously as physical contact.
Refusing Crew Instructions
Ignoring a crew directive sounds minor, but airlines treat it as a direct threat to operational safety. Refusing to sit down during taxi, ignoring seatbelt signs, or blocking an emergency exit row can all trigger a review of your flying privileges. When noncompliance forces a diversion, the consequences escalate. The FAA can impose civil fines up to $43,658 per violation, and a single incident can involve multiple violations stacked together.3Federal Aviation Administration. Unruly Passengers The internal ban usually follows the federal fine, not the other way around.
Intoxication
Federal regulations require airlines to deny boarding to anyone who appears intoxicated. Under 14 CFR § 121.575, a carrier cannot allow a visibly intoxicated person onto the aircraft and cannot serve alcohol to anyone who already appears drunk.4eCFR. 14 CFR 121.575 – Alcoholic Beverages If an intoxicated passenger makes it past the gate and causes a disturbance, the airline must report it to the FAA within five days. That reporting requirement means an alcohol-related incident almost always generates a formal record, and a ban often follows.
Smoking and Vaping
Smoking on an aircraft violates 14 CFR § 121.317, which prohibits smoking whenever “No Smoking” signs are posted, including in all lavatories. Tampering with a lavatory smoke detector is a separate offense.5eCFR. 14 CFR 121.317 – Passenger Information Requirements, Smoking Prohibitions, and Additional Seat Belt Requirements Most airlines treat vaping and e-cigarettes the same as traditional smoking under their Contracts of Carriage, even though the federal regulation itself uses the word “smoke” without explicitly naming e-cigarettes. Either one can put you on a ban list and generate FAA fines.
Federal Penalties Riding Along With the Ban
The ban is the airline’s private action. The incident that caused it often produces federal enforcement too, on two tracks.
On the criminal side, 49 U.S.C. § 46504 covers interference with flight crew, with prison exposure of up to 20 years, or life if a weapon is involved. Federal prosecutors are selective, but flight diversions and crew injuries reliably draw attention.
On the civil side, the FAA can fine any unruly passenger up to $43,658 per violation through its administrative process, and one incident often involves multiple violations. Separately, 49 U.S.C. § 46318 imposes a civil penalty specifically for physically or sexually assaulting a crew member or another person on an aircraft, or for actions that pose an imminent safety threat.6Office of the Law Revision Counsel. 49 USC 46318 – Interference With Flight Crew Members and Attendants Civil penalties adjust annually for inflation; the 2025 adjustment brought the assault-specific maximum to $44,792.7Federal Register. Revisions to Civil Penalty Amounts 2025 The FAA levied a total of $7.5 million in fines against disruptive passengers in 2024.
How You Find Out, and How Long It Lasts
Airlines usually send a formal notification letter to the address or email tied to the ticket or frequent flyer account. The letter states that the carrier will no longer provide transportation and sometimes describes the process for requesting reconsideration. Notification isn’t always prompt. Some passengers only discover the ban when they try to check in for a future flight and the system produces a denied-boarding message directing them to corporate headquarters.
One narrow category triggers mandatory written notice. If the refusal is based on a passenger’s disability, 14 CFR § 382.19(d) requires the airline to provide a written statement of the reason within 10 calendar days.8eCFR. 14 CFR Part 382 – Nondiscrimination on the Basis of Disability in Air Travel The same requirement applies under § 382.79(e) when a carrier refuses to transport a service animal. Outside disability-related refusals, no federal rule requires the airline to give you a detailed written explanation.
Duration tracks severity. Minor infractions like a single instance of ignoring crew instructions might draw a suspension of six months to a few years, essentially a cooling-off period, with periodic reassessment by the airline’s security team. Serious incidents almost always draw a permanent ban. If your behavior caused an emergency landing, injured a crew member, or brought law enforcement to the aircraft, expect a lifetime exclusion from that carrier’s network. The decision sits with the airline’s legal or corporate security department, not the flight crew involved in the incident. These decisions are rarely reversed without legal action or extraordinary circumstances.
Miles, Elite Status, and Existing Tickets
The collateral damage most passengers don’t see coming lives in the loyalty program terms. A ban typically activates broad forfeiture rights. United’s Contract of Carriage explicitly allows the airline to delete all miles and credits in a MileagePlus account, revoke elite status, and permanently terminate program membership as a remedy for contract violations.9United Airlines. Contract of Carriage Frontier’s loyalty terms use nearly identical language, allowing the airline to forfeit all accrued miles and points, strip elite status, and cancel the account if a member acts disruptively or refuses to follow crew instructions.10Frontier Airlines. FRONTIER Miles Terms and Conditions Other major carriers have similar provisions. A passenger sitting on hundreds of thousands of miles can lose all of them overnight, at the airline’s sole discretion.
Existing tickets sit in a murkier place. The DOT’s automatic refund rule, which took effect in 2024, requires airlines to issue refunds when they cancel or significantly change a flight. It was written for operational disruptions, not for refusals to transport specific passengers. Whether a banned passenger is entitled to a refund for unused tickets typically comes down to the Contract of Carriage, which often gives the airline discretion to deny refunds when the passenger caused the problem. If you have upcoming reservations when a ban lands, request a refund in writing right away. If the airline refuses, a DOT complaint or a credit card chargeback may be your best leverage.
Whether the Ban Follows You Elsewhere
No industry-wide shared ban database exists. Each carrier keeps its own list. Getting banned from Delta does not automatically flag you on American or Southwest. Delta publicly urged other carriers to share their internal lists in 2021, arguing that a one-airline ban is meaningless if the passenger just rebooks with a competitor. The push generated headlines but has not produced a unified system.
Some exceptions apply. Airlines within the same alliance or codeshare partnership may share passenger safety information case by case, particularly when an incident drew law enforcement. If you were arrested at the gate or the disruption made the news, other carriers may add you to their lists independently. For most banned passengers, though, the restriction stays with the airline that imposed it.
Discrimination Limits
Airline authority to ban is broad, not unlimited. Federal law prohibits airlines from discriminating against any passenger based on race, color, national origin, religion, sex, or ancestry.11Office of the Law Revision Counsel. 49 USC 40127 – Prohibitions on Discrimination Separate regulations under 14 CFR Part 382 protect passengers with disabilities from discriminatory refusals of service. If you believe an airline banned you based on a protected characteristic rather than actual conduct, the Department of Transportation investigates discrimination complaints, and its review of civil rights and disability complaints is more rigorous than for general service complaints.12U.S. Department of Transportation. File a Consumer Complaint
Challenging an Airline Ban
Ask the Airline to Reconsider
Start with a written request to the airline’s corporate security or legal department, using the address from the original notification letter or the carrier’s published legal notices. Identify the specific incident, acknowledge what happened if that’s appropriate, and explain why the ban should be reconsidered. Physical mail tends to get a more formal review than email, though some carriers accept electronic submissions. Expect 30 to 90 days for a response. Airlines have no legal obligation to grant reconsideration, and a denial at this stage is usually the end of the internal road. Repeated letters to the same department rarely change the outcome.
File a DOT Complaint
You can file a complaint with the Department of Transportation through its online portal. DOT rules require airlines to acknowledge consumer complaints within 30 days and provide a substantive written response within 60 days. The DOT does not investigate every non-discrimination complaint; for general service complaints, it conducts targeted or sample reviews rather than case-by-case investigations. A DOT complaint is more useful as a paper trail and an escalation signal than as a guaranteed route to reinstatement.
Consider Legal Action
For passengers with real financial harm from a ban, such as forfeited miles worth thousands of dollars or nonrefundable tickets, a lawsuit may be the remaining option. Small claims court is sometimes viable for recovering the cost of canceled tickets, with filing fees that vary by jurisdiction. A case grounded in discrimination or a ban that violated the airline’s own Contract of Carriage has stronger footing, but courts have generally given airlines wide latitude under 49 U.S.C. § 44902(b) to make their own safety determinations. If the financial stakes are significant, talking to an attorney before filing is worth the cost.