Can I go through security in LHR terminal 5 if my flight is out of terminal 3?
My family and I are flying out of London around the same time to different destinations from different terminals. I want to help my wife check-in and go through security and immigration in terminal 5, and then head to my flight out of terminal 3. Can I do my checkin and security at terminal 5? Or is that not allowed?
Best Answer
So, first things first. Terminal 5 is very far from the other terminals at Heathrow, and it would take a lot of time to get from T5 to T3. The other thing to note is that there is no way, as far as I know, to get to T3 airside. You would have to go through security screening at both terminals; all in all, I would not recommend trying to accompany your wife unless you have at least an hour to spare. If there is a particular reason that she needs assistance (e.g. her English isn't particularly good), the airport or airline staff may be able to help.
Now, as for whether or not you're allowed to enter T5 airside in the first place. You will not be able to enter with a boarding pass issued for a flight leaving from T3. However, you can ask the BA staff at T5 to issue you with a gate pass; essentially, it's a pass that will let you go through security at T5. I'm afraid I don't know their policy on gate passes, but you might call them and ask them about it.
As for check-in, you would have to do that either online or at T3. It would not be possible to check in at T5 as your airline would not have a check-in counter there.
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How do I get from Terminal 3 to Terminal 5 at LHR?
On arrival at Terminal 3, follow signs for Flight Connections. You will be transferred to Terminal 5 by free shuttle bus; these run every few minutes. As you remain 'airside' you do not need to reclaim and recheck your bags, or go through UK immigration, although there will be a quick security check at Terminal 5.Do you have to go through security when changing terminals at Heathrow?
Just follow the purple connections signs which clearly point you in the direction of the departure lounge or buses if you are travelling from a new terminal. Be warned: everyone who boards a new flight at Heathrow will have to go through security.Are all Heathrow terminals connected?
There are five terminals at Heathrow: Terminals 1 (currently closed), 2 and 3, which are connected and a short walk from each other. Terminal 4. Terminal 5; the A Gates are in the main terminal building, B and C Gates are in separate satellite buildings connected by a transit train from the main terminal.Can I enter Heathrow Terminal 5?
Terminals 2,3 and 5 are open for arriving and departing flights. As some airlines might not be operating out of their normal terminal, please continue to check with your airline before traveling to confirm the terminal for your flight.How to: Catch Your Connecting Flight at Heathrow
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