I've never flown long haul before and heading to Las Vegas on 8th November this year.
I have heard the immigration queues can be anything upto 2hrs long depending where you are on the flight.
Can anybody advise which would be the best economy seats heading to Las Vegas and back to Gatwick.

I have heard the immigration queues can be anything upto 2hrs long depending where you are on the flight.
Can anybody advise which would be the best economy seats heading to Las Vegas and back to Gatwick.
