How do I renew my passport after booking a flight ticket?

I already made a reservation for the flight ticket

I bought it at an early price, so I have to renew my passport in the meantime.

Then can I change my passport number if I contact the airline?

Or does it cost a fee to change my passport number?

I was wondering if the passport number is the same because it costs a fee if I write the wrong name.

1569 2018-09-13 Gentleman

I'll change your passport number

Gentleman 7 years ago 0

Call the airline's customer service and they'll change it

Gentleman 7 years ago 0

That's a relief. Thank you

Gentleman 7 years ago 0

You can change your passport number
Or you can take both your old and new passports

Gentleman 7 years ago 0

Thank you for the tip

Gentleman 7 years ago 0