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Delta Air Lines Delta Air Lines

DL521 Flight Status

According to real-time data from Trip.com, flight DL521, operated by Delta Air Lines and scheduled to fly from Atlanta (ATL to Seattle (SEA), has been cancelled. Please contact the airline or airport counter for the latest information.
ATL-SEA

Access more flight status info on the Trip.com app

Canceled
Please refer to the airline for the latest information
173106C5-5199-4134-A176-6296CB3DA377 5h 41m
Check-in Counter
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Boarding Gate
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Arrival Gate
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Baggage
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DL521

DL521 Aircraft Details

flight status
Plane model info unavailable
Punctuality (Departure)
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Punctuality (Arrival)
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Early on average
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Age
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Seats
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Flight Distance
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Frequently Asked Questions

  • What is the current status of flight dl521?

    Flight dl521 has been canceled (status: Canceled). Contact Delta Air Lines or your booking channel for rebooking or refund (updated Nov 7, 2026).
  • Flight dl521 has been canceled (status: Canceled). Contact Delta Air Lines or your booking channel for rebooking or refund options; if booked on Trip.com, use Manage Booking.
  • Flight dl521 is operated by Delta Air Lines from Atlanta (ATL) to Seattle (SEA). Typical flight time is about 5 hours41 minutes; operating days may include Saturday.
  • Track flight dl521 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.
  • If dl521 is delayed or canceled, first confirm the latest status here (Canceled, updated Nov 7, 2026). Contact Delta Air Lines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.
  • Flight dl521 has been canceled and did not depart from Atlanta (ATL). Contact Delta Air Lines or your booking channel for next steps.

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