Duel Passport

[a99az]

To avoid the need to get a visa to visit Spain with my baby daughter could she depart with her Thai passport and use her British Passport on arriving in Spain. Then depart Spain with British Passport and then show her Thai passport when she gets back to Thailand? Avoiding the need to have a visa for Spain or Thailand.

I feel sure that the Spanish will not stamp her British passport on arrival to Spain but might they become suspect if she has no stamp in it from Thailand? Like wise will the Thai immigration become suspect if there is no stamp in her passport when she returns to Thailand, she is at this time permitted to hold two passports.

[Crossy]

It's not a problem, lots of dual nationals swap passports in the air. The only time you can't do it is at a land crossing where the immigration chaps on both sides want to see the exit stamp from the other country

You may need to show both passports at check-in (not immigration) to show that she has rights of entry into the destination country without a visa.

BTW She will be able to retain both Thai and British nationalities forever, there is no requirement to give either up at any point

[a99az]

It's not a problem, lots of dual nationals swap passports in the air. The only time you can't do it is at a land crossing where the immigration chaps on both sides want to see the exit stamp from the other country

You may need to show both passports at check-in (not immigration) to show that she has rights of entry into the destination country without a visa.

BTW She will be able to retain both Thai and British nationalities forever, there is no requirement to give either up at any point

Many thanks for that info I will do as you say and show both to check in only.

[Mahout Angrit]

This is the recommended and accepted method but for your own satisfaction you may be interested to read this thread