How to Prove Your Flight Was Delayed (Even Without a Boarding Pass)

The most reliable source of delay evidence is flight tracking data from independent services. These record actual departure and arrival times for every commercial flight, often to the minute.

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  [FlightAware](https://www.flightaware.com/): Free historical flight data. Search by flight number and date to see actual vs. scheduled times.

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  FlightRadar24: Similar historical tracking with global coverage.

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  [Eurocontrol](https://www.eurocontrol.int/): Official European air traffic data, particularly useful for EU261 claims.

Flight tracking data is accepted as evidence by airlines, NEBs, and courts. Airlines cannot dispute independently recorded departure and arrival times. This is your strongest evidence source.

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  Airline app screenshots: Delay notifications, gate changes, and updated departure times.

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  Email or SMS notifications: Airlines send delay and cancellation notifications that serve as evidence.

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  Credit card statements: Prove you purchased a ticket for the flight in question.

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  Airport departure board photos: If you took photos during the delay, these show the status at a specific time.

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  Social media posts: Your own posts about the delay (with timestamps) can serve as contemporaneous evidence.

For tips on documenting delays in real time, see our flight tracking guide. For the overall claims process, read our step-by-step guide.

Airlines maintain detailed records of every flight, including actual times, delay causes, and passenger manifests. When you file a claim, the airline can verify your booking with just your name and approximate travel date. They know whether the flight was delayed and by how much. The airline cannot claim uncertainty about whether a delay occurred.

1. 1

   Look up your flight on FlightAware or FlightRadar24 and screenshot the actual vs. scheduled times.

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   Check your email for the original booking confirmation and any delay notifications from the airline.

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   Check your credit card statement for the purchase date and amount.

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   If you have photos or social media posts from the day, include them with timestamps.

5. 5

   Compile everything into a single document or email for your claim submission.

Even with minimal evidence, most claims can proceed. The airline's own records will verify the delay. Check your flight with TravelStacks and we will verify the delay independently using our data sources. For the documents you need, see our documents guide. For your DOT rights or EU261 rights, see our rights guides.