DOT Refund Rules 2026: What Airlines Must Pay You

The US Department of Transportation's final refund rule (effective October 2024) established the strongest airline refund protections in US history. Airlines must now issue automatic cash refunds to passengers whose flights are cancelled or significantly changed, without requiring passengers to request them.

Automatic means automatic. Airlines are required to initiate refunds proactively when flights are cancelled or significantly changed. You should not have to call, email, or fill out a form. If the airline does not initiate your refund, they are already in violation.

The DOT defines "significant change" with specific thresholds that trigger the refund right.

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  Domestic delay of 3 or more hours from the original schedule.

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  International delay of 6 or more hours from the original schedule.

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  Airport change at departure or arrival.

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  Increase in connections beyond the original itinerary.

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  Downgrade to a lower class of service.

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  Change to a less accessible aircraft for passengers with disabilities.

Any of these triggers your right to a full cash refund. The airline cannot substitute a voucher, credit, or miles unless you explicitly choose one. For more on the voucher vs. cash distinction, see our voucher guide.

The DOT sets strict deadlines for processing refunds.

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  Credit card payments: refund within 7 business days.

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  Cash, check, or other methods: refund within 20 calendar days.

Missing the deadline is itself a violation. If an airline does not process your refund within the required timeframe, you can file a DOT complaint for both the original refund and the deadline violation. This adds pressure for the airline to comply.

The refund must go back to your original payment method. If you paid with a credit card, the refund goes to that card. If you paid with a debit card, the refund goes to the associated bank account. Airlines cannot force you into a different payment method.

The final rule also addresses ancillary fees. When a flight is cancelled, your refund must include all ancillary fees tied to that flight: checked bag fees, seat selection fees, priority boarding fees, Wi-Fi purchases, and any other add-ons.

Additionally, if your checked bag is not delivered within specific timeframes (12 hours for domestic, 15 to 30 hours for international), you are entitled to a refund of the bag fee even if your flight was not disrupted. For a complete walkthrough of the refund process, see our airline refund guide.

If an airline fails to provide an automatic refund, you have several enforcement options.

1. 1

   Request the refund directly by contacting the airline and citing the DOT final rule by name.

2. 2

   File a DOT complaint at transportation.gov/airconsumer. The DOT tracks complaints by airline and uses them for enforcement actions.

3. 3

   Credit card chargeback if you paid by card and the airline refuses a valid refund.

4. 4

   Small claims court for larger amounts where the airline continues to refuse.

For a detailed guide on filing DOT complaints, see our complaint guide. You can also check your flight with TravelStacks to see what you are owed.