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Old Jun 20, 2016 | 11:01 am
  #1  
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Transit time needed for LHR

Hello, I'm flying into LHR on AA and then catching another flight out on EY. Would 1.5 hrs between those flights be enough time? I'm assuming I'll need to do carry-on only for this to work, just not sure if I'll need to go through customs and then security again, and if so how much time to allow for that.

Hoping someone who has done something similar can chime in with some advice. Thanks!
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Old Jun 20, 2016 | 1:08 pm
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If everything goes well you may make it, but I think I'd budget at least 2hrs for inter-terminal transfers. Its up to your risk level. If booked on separate tickets then EY has no obligation if your AA flight is late. And AA wouldn't either.
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Old Jun 20, 2016 | 9:12 pm
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Originally Posted by JA318
Hello, I'm flying into LHR on AA and then catching another flight out on EY. Would 1.5 hrs between those flights be enough time? I'm assuming I'll need to do carry-on only for this to work, just not sure if I'll need to go through customs and then security again, and if so how much time to allow for that.

Hoping someone who has done something similar can chime in with some advice. Thanks!
AA uses T3, EY uses T4. MCT for a connection from T3 to T4 is 90 minutes.

On separate tickets you do not have enough time.
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Old Jun 20, 2016 | 11:27 pm
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Originally Posted by nux
AA uses T3, EY uses T4. MCT for a connection from T3 to T4 is 90 minutes.

On separate tickets you do not have enough time.
Absolutely right - plus any transfer to T4 is just about the worst possible because of the lack of options due to the location of the terminal. There really, in these circumstances, is no option but to rely on the airside flight connection buses - a landside transfer, which often works well from say T2 to T3 because of generally shorter security queues landside, is too lengthy and convoluted in this case given the available time.

Throw in a potentially long walk from the T3 arrival gate, and it's definitely not something I'd be attempting.
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Old Jun 21, 2016 | 1:57 am
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No chance on separate tickets. Wheels down to immigration will be 20 minutes, immigration 30+ minutes, bags may or may not be there, 15 minutes to T4, 15 minutes to check in, 10 minutes for security, and there goes your flight. I would budget minimum three hours.
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Old Jun 21, 2016 | 5:21 am
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Originally Posted by LondonElite
No chance on separate tickets. Wheels down to immigration will be 20 minutes, immigration 30+ minutes, bags may or may not be there, 15 minutes to T4, 15 minutes to check in, 10 minutes for security, and there goes your flight. I would budget minimum three hours.
The OP has stated this is on an HBO basis, so no immigration and bag collection if flight connections is used, so this isn't what makes the proposal inadvisable.

The problem is the potential lateness of the incoming AA flight. Even 30 minutes delay, coupled with arrival at a gate remote from the Flight Connections channel, and there's a very serious issue because a transfer from anywhere to T4 has no way of short-cutting the official route.

Last edited by NWIFlyer; Jun 21, 2016 at 12:42 pm
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Old Jun 21, 2016 | 10:56 am
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Thanks for the replies and input, I'm going to go ahead and change the flight to the day before.

Now looking at fun ways to pass time at Heathrow airport.
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Old Jun 21, 2016 | 4:07 pm
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Originally Posted by NWIFlyer
The OP has stated this is on an HBO basis, so no immigration and bag collection if flight connections is used, so this isn't what makes the proposal inadvisable.

The problem is the potential lateness of the incoming AA flight. Even 30 minutes delay, coupled with arrival at a gate remote from the Flight Connections channel, and there's a very serious issue because a transfer from anywhere to T4 has no way of short-cutting the official route.
I did notice he was on HBO after I posted, but even without luggage this is ambitious. Immigration in T3 can be a real disaster, and you won't need much of an AA delay to completely screw the plan.
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Old Jun 21, 2016 | 9:37 pm
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Originally Posted by JA318
Thanks for the replies and input, I'm going to go ahead and change the flight to the day before.

Now looking at fun ways to pass time at Heathrow airport.
How long is your layover at LHR now? You can't stay overnight.
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Old Jun 21, 2016 | 9:42 pm
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Originally Posted by LondonElite
Immigration in T3 can be a real disaster, and you won't need much of an AA delay to completely screw the plan.
I know we generally agree in our advice, so I won't labour the point too much, but - to avoid confusion for the OP - I don't believe there is immigration if the Flight Connections option is used because there is no requirement to cross the UK Border.

What I have zero experience of is what T4 transit security is like - if it's anything like T5, definitely best avoided! If it's closer to T2, it's a much better option (generally speaking, if on a protected connection, not in the OP's case).
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Old Jun 22, 2016 | 9:36 am
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I went ahead and booked a night at the Hilton in T4, so we will be ready go the next morning and already situated in the right terminal.
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Old Jun 22, 2016 | 9:41 am
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Originally Posted by NWIFlyer
I know we generally agree in our advice, so I won't labour the point too much, but - to avoid confusion for the OP - I don't believe there is immigration if the Flight Connections option is used because there is no requirement to cross the UK Border.

What I have zero experience of is what T4 transit security is like - if it's anything like T5, definitely best avoided! If it's closer to T2, it's a much better option (generally speaking, if on a protected connection, not in the OP's case).
Yes, I think that's probably true, and a valid point. I also won't want to face transit security between those two and, as you say, a slight delay on the incoming blows the whole thing up.
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Old Jun 22, 2016 | 11:08 am
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Originally Posted by JA318
I went ahead and booked a night at the Hilton in T4, so we will be ready go the next morning and already situated in the right terminal.
Note, if you are traveling HBO, when you arrive at LHR, instead of clearing immigration at T3, follow the signs for Flight Connections to T4, and then clear immigration at T4.
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Old Jun 22, 2016 | 4:21 pm
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Assume touch down delays

Heathrow is the most unreliable airport and your AA flight might be on hold south or west of the city for 30 minutes before cleared to land.

These links might be useful as minimum time if everything went perfect http://www.heathrow.com/airport-guid...ween-terminals
http://www.heathrow.com/flight-connections#
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