I'm in trouble.........I'm a US Citizen but my parents live in Spain. Earlier this week my Dad had a heart-attack so, naturally, I booked the first flight I could and leave tomorrow. However.....

.....I grabbed my US passport out of the drawer only to find it expired a few weeks back [I had no intent on traveling overseas for 6-12 months so I didn't renew it]. Now, I have a UK passport being a dual citizen so I plan to leave on the UK passport, enter spain on the UK passport and then fly back to the USA on the expired USA passport.

Can I do this? Am I ....ed?

Cheers,
Smethwickman