Do I need a passport number...

[Badgoushk]

... to book a flight?

Passport is in my maiden name and runs out in March. I need to fly with work in April. Obviously I need a new passport before then and can send off for one now but I need to book the flight asap. Do I need a passport number to book the flight? Thanks.

BTW I haven't flown in years, hence me not knowing!

Not to book generally but for the advanced passenger info at a later point before flying

No, you can add it later.

No, just get the name to match your future passport.

Thanks everyone!