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us Travel, documents & being abroad wrong passport number • passport number typo • checked in already • online check-in mistake • apis passport details wrong • advance passenger information error • travel profile wrong document • airline app passenger details • manage reservation passport • boarding pass document mismatch • international flight documents • secure flight passenger data • tsa screening mismatch • redress number confusion • known traveler number confusion • visa linked to passport number • esta linked to passport number • airport check-in agent fix • reservation document correction • passport details not updating

What to do if…
you realise your travel profile saved the wrong passport number and you already checked in

Short answer

Contact the airline now and then use a staffed airport counter to make sure your reservation has the correct international APIS/passport details (and, separately, correct Secure Flight screening details like name/date of birth/gender).

Do not do these things

  • Don’t assume fixing your saved “traveler profile” fixes the reservation for today’s flight.
  • Don’t cancel and rebook in a panic; that can introduce new identity mismatches and fees.
  • Don’t keep re-checking-in to force an update; if edits are blocked, you need an agent override.
  • Don’t rely on a kiosk if the app blocks travel-document edits or your boarding pass flags a docs issue—use a staffed agent who can update the reservation record.
  • Don’t wait until boarding time; corrections can require revalidation and a reissued boarding pass.

What to do now

  1. Identify whether this is an international APIS/passport issue, a Secure Flight issue, or both.

    • International APIS: passport number, passport country, expiration date, nationality, etc.
    • Secure Flight (screening): name, date of birth, gender (and optional redress number).
      Check your trip’s Passenger details / Travel documents section and note exactly what’s wrong.

  2. Try “Manage reservation” edits once (then stop if it’s blocked).
    If the airline lets you update passport/APIS details after check-in, do it there and save confirmation. If it won’t save, don’t keep looping—move to the next step.

  3. Contact the airline immediately and ask for a manual correction on the reservation record.
    Use official chat/phone and say:
    “My reservation has the wrong passport number in the travel documents/APIS section. Please update it to match this passport and reissue my boarding pass if required.”
    If anything else is off (name/DOB/gender), ask them to correct that too.

  4. Arrive early and go to a staffed counter even if you already have a boarding pass.
    Ask the agent to verify the reservation now matches the passport you are carrying, and to reprint/reissue the boarding pass after the update.

  5. If you need ESTA/visa/other entry permission, confirm it matches the passport number you’re travelling on.
    If your permission is tied to a different passport number, you may need to correct or reapply through the official destination process—an airline record fix alone may not solve it.

  6. If you’ve had repeated screening issues, consider whether you should add a Redress Number (only if you already have one).
    A redress number is optional and only relevant if you’ve been issued one; don’t invent one. If you have it, ask the airline to add it to the reservation.

What can wait

  • You don’t need to perfect your saved “travel profile” today—your priority is the reservation record for this flight.
  • You don’t need to troubleshoot app glitches endlessly—if edits are blocked, the practical route is airline support + a staffed airport agent.
  • You don’t need to make any big decisions about future accounts, document storage, or complaints today.

Important reassurance

This is a very common mistake (autofill, old passport saved, one digit wrong). For international trips, airlines routinely re-check passports at the airport, and agents can often correct the reservation details once they see your document.

Scope note

These are first steps only to stabilise a travel-day admin problem and reduce the risk of denial at the gate. Airline systems and destination entry rules vary.

Important note

This is general information, not legal advice. If you’re denied boarding or have immigration/entry-permission complications, rely on the airline’s official support and the relevant government entry authority for your destination.

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