New DOT Rules:
What US Airlines Owe You When Things Go Wrong

In 2024, the US Department of Transportation issued a new automatic refund rule that fundamentally changed what airlines owe you when things go wrong. No more vouchers. No more travel credits. Automatic cash refunds, period. If your airline hasn't been complying, they owe you money right now — and you can file a complaint to get it back.

The 2024 DOT Automatic Refund Rule: What Changed

For decades, airlines could offer you a voucher or travel credit instead of a refund when your flight was cancelled or significantly changed. The 2024 rule put an end to that. Now, airlines are required to give you an automatic refund in cash (or original form of payment) without you having to ask for it.

This rule applies to:

• Flight cancellations — automatic refund within 7 days (credit card) or 20 days (other payment methods)
• Significant schedule changes — flights that are rescheduled to a significantly different time
• Missed connections — if the airline's fault caused you to miss a connecting flight
• Equipment downgrades — if you're downgraded from premium cabin to a lower cabin
• Added connections — if your flight now requires an additional stop not originally scheduled

What Counts as a "Significant Change"?

This is where airlines often get creative with denials, so knowing the exact thresholds is crucial.

Important: The 3-hour domestic threshold is measured from the scheduled arrival time to the actual arrival time at your final destination, not the departure time.

How Refunds Should Work: The Timeline

The DOT rule specifies exact timelines for refunds:

• Credit card payment: Automatic refund within 7 days
• Debit card payment: Automatic refund within 7 days
• Bank transfer or check: Automatic refund within 20 days
• Original airline payment method: Refund to whatever method you originally used

The clock starts the day the airline cancels your flight or makes a significant change, not the date you contact them. If you're past these timelines, the airline is violating federal regulation.

Tarmac Delay Rules: The 3-Hour Rule

A separate DOT rule covers tarmac delays — situations where your plane is stuck on the runway without taking off, or stuck after landing without deplaning.

• Domestic flights: Airlines must deplane passengers after 3 hours on the tarmac
• International flights: Airlines must deplane passengers after 4 hours on the tarmac

If you're stuck longer than these windows, the airline must offer passengers food, water, restrooms, medical attention if needed, and if the delay extends overnight, lodging. Failure to follow this rule is a violation and you can file a complaint.

Denied Boarding Compensation (The Bump)

If an airline oversells a flight and you're denied boarding (bumped), you're entitled to immediate compensation:

• Flight delay under 1 hour: No compensation (passenger consented)
• Flight delay 1-2 hours (domestic) or 1-3 hours (international): $775
• Flight delay 2+ hours (domestic) or 3+ hours (international): $1,550

Airlines are supposed to ask for volunteers first. If the flight oversells and no one volunteers, the airline can bump you involuntarily, but you're still entitled to the compensation above. Always ask the gate agent to state the compensation amount in writing before accepting a voluntary bump.

How to File a DOT Complaint If the Airline Doesn't Comply

Step 1: Request the refund directly from the airline

First, contact the airline's customer service and request your refund. Reference the specific DOT regulation (2024 automatic refund rule, tarmac delay rule, or denied boarding rule as applicable). Keep records of all communication.

Step 2: Document everything

Gather: your booking confirmation, boarding pass, airline communications about the cancellation or change, and evidence of the delay/issue (screenshots, photos, gate agent statements, etc.).

Step 3: File with the DOT

Visit the DOT Aviation Consumer Protection Division online complaint form at dot.gov/airconsumer. Fill out the form with your flight details, the specific rule violated, what the airline owed you, and what happened. Be clear and factual.

Step 4: Include your evidence

The DOT will ask you to attach supporting documents. Submit everything: booking confirmation, boarding pass, airline response (if any), and any other proof.

Step 5: Wait for investigation

The DOT investigates complaints. If they find the airline violated regulations, they can impose fines and direct the airline to pay you. This can take several months, but complaints create a paper trail that airlines track.

The Bottom Line

The 2024 DOT rule is one of the strongest consumer protections ever issued for US air travel. Airlines are required to automatically give you cash refunds for cancellations and significant changes — no asking required. If you experienced a cancellation or significant schedule change in the past year and didn't receive a refund, you may be owed money right now. File a DOT complaint and the airline will have to respond.

For the complete playbook on US airline protections — including rebooking strategies, loyalty program compensation, and scripts for getting the airline to pay for your hotel — check out our Missed Transit Recovery Guide.