There is only one terminal operating at Heathrow airport so why not check out the facilities available?
Hungry? Well, go ahead and grab a bite to eat before you board your flight. It'll be a nice way to relax!
When it comes to flying, a lot of airlines give you the option to check in online. You can do this usually about a day before your flight. This means you can pick where you want to sit and get your boarding pass all set up. Just visit the airline's website for more details. And if you've already got your boarding pass printed and you're not carrying a bunch of luggage to check in, you can head straight to the security checkpoint when you reach the airport.
Now, if you're at Heathrow Airport and want to make things even smoother, they have these self-service check-in machines. You can use these machines to do pretty much the same stuff - choose your seat and get your boarding pass. And if you have bags to drop off, you can do that there too. Don't worry if you need some help, the airline staff will be there with a friendly hand if you need it.