us Travel, documents & being abroad

What to do if…
your electronic travel authorisation is linked to an old passport and you are travelling soon

Produced and maintained by PanicStation.org Published: 19 June 2026 Last reviewed: 17 July 2026 Editorial policy USA guide

Short answer

Assume you may be blocked at check-in if the travel authorization is linked to a different passport number from the passport you will present. Use the official government route for the country you are entering or transiting to check the record, then submit a new application or an official change request using your current passport.

Do not do these things

Do not enter your old passport number in airline check-in to make the records match.
Do not use a look-alike urgent approval website; use only the official government site or app for the country you are entering or transiting.
Do not cancel flights before checking the official process and your airline’s change or cancellation deadlines.
Do not ignore transit points; some routes can trigger transit document or authorization checks.
Do not rely on a screenshot alone; airlines usually verify travel permission electronically against the passport you present.
Do not keep submitting duplicate applications unless the official process clearly says a new application is required.

What to do now

Identify the exact authorization and the passport number on it.
Open the confirmation email, app, or status page. Note the country, scheme name, reference number, passport number, nationality, and expiry date recorded.
Check the official status page or official app for that country.
If the passport number on the authorization does not match the passport you will travel with, treat it as a document mismatch that needs action before check-in.
Use the rule for your exact scheme.
Some authorizations require a new application after a passport change. Some allow an official change request. For example, the UK ETA and Canada eTA are linked to the passport and generally need a new authorization if the passport changes. Australia’s ETA subclass 601 cannot be transferred to a new passport. New Zealand’s NZeTA has an official change-request form for some passport-detail changes, and passport-number changes should be requested at least 10 days before travel.
Submit the correct new application or change request with your current passport.
Use the official government site or app. Before submitting, re-check the passport number, name spelling, date of birth, nationality, passport expiry date, and email address.
Update your airline booking so it matches the passport you will present.
Change the passport details or Advance Passenger Information in your booking or airline profile. This does not replace the official authorization process, but it reduces last-minute mismatches at check-in.
Check every transit country on the itinerary.
Look at each connection, including airside transit. If a transit country requires an authorization linked to your passport, check that record too.
Use U.S. Department of State destination pages as a starting point.
Check the destination and transit country pages for entry requirements, then follow the destination government’s official application or correction route.
Keep a small proof bundle ready.
Save the new approval, change-request receipt, reference number, and any official status page showing approval. These may help with airline support, but they do not replace the electronic passport check.

What can wait

You do not need to decide now about refunds, complaints, or replacing the whole itinerary.
You do not need to fix unrelated accounts or IDs; focus on the authorization, passport, and airline booking.
You do not need to tell everyone the trip is at risk before you have checked the official record and submitted the correct application or change request.
You do not need to solve every future travel document issue today.

Important reassurance

This is a common problem after a passport renewal because many digital travel permissions are tied to a passport number. Finding the mismatch before travel gives you a chance to fix it before the airline check-in point.

Scope note

These are first steps only. Later decisions may need specialist help if you have dual nationality, a visa in an old passport, previous refusals, a complex transit route, or a very tight departure window.

Important note

This is general information, not legal, immigration, financial, or professional advice. Requirements vary by nationality, destination, transit route, passport type, and current government rules, and airlines may enforce document checks before boarding.

Additional Resources

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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