I had to give my date of birth in order to book my flight, for a job, yet I do not want the company to know my age. Can someone who is not you find out your birthdate from entering in or telling the airline your confirmation code?

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    It might depend on the airline. Commented Apr 15 at 3:40
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    This will very much depend on which legislations apply, i.e. what countries are involved.
    – Hilmar
    Commented Apr 15 at 3:54
  • It may be more about "legal". If they ask your age and you do not answer, they may deny your application (Note: in many countries it is illegal), but in general nobody can check your personal details without your consent (facebook e co have your consent). -- Often with booking reference and surname, one can see all details (and often they can also ask refund themselves, so never share such code but to trusted people). Commented Apr 15 at 9:33

1 Answer 1


The confirmation code itself does not encode your date of birth, but it is possible that your airline's website shows the details of all passengers in the booking, including dates of birth. That is something you can easily check for yourself - just look for a "manage your booking" or "check-in online" or similar link on their website, enter your booking code and surname, and see what information you can find.

If the website does not show it then it is unlikely that the airline would reveal it over the phone, though not impossible. If the company did call the airline to ask this information that would seem like "social engineering" to me - probably not something any ethical company would do.

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    I wonder if a company that employs someone without knowing their age is an ethical company.
    – Willeke
    Commented Apr 15 at 10:16
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    @Willeke Indeed. In many countries age discrimination by employers is illegal, age should not be taken into account in employment decisions. Not sure what the OP’s reason is for not wanting to disclose their correct DoB to the company since it’s likely needed by the employer for a variety of reasons including, for example, workforce monitoring, and pension records.
    – Traveller
    Commented Apr 15 at 10:53
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    @Traveller in many (most?) jurisdictions, once a person has actually been hired, the employer (at least people in HR and payroll) will most definitely know the employee's age/date of birth, as that is part of records they need, directly or indirectly. Before a hiring decision is taken, it's probably a bit more variable, but I would definitely not count on it (they will probably ask for the info before being able to issue a contract).
    – jcaron
    Commented Apr 15 at 11:40
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    @terdon: Many jurisdictions impose minimum-age requirements for some kinds of jobs. Willeke was probably alluding to people who hire young workers without regard for whether they satisfy those requirements.
    – supercat
    Commented Apr 15 at 16:32
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    @terdon, I live in a country where everybody have to show their official ID and the company has to store a copy. But I would find it suspicious as someone hides their age as I would assume that they are too young for the work they do, and an employer who allows it is likely to know they are too young.
    – Willeke
    Commented Apr 15 at 16:46

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