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Connection process on flight from Athens to Dallas connecting in London Heathrow

Posted by on

I am flying from Athens to London Heathrow and on to Dallas on 11/2. The flight was purchased through American Airlines. The Athens to Heathrow flight is a codeshare with British Airways arrives at 10:15 a.m at terminal 5 and Heathrow to Dallas on American departs at 11:55 a.m. from terminal 3. I know that making the connection will be tight, so I want to be as prepared as I can to save time. I have three questions:

  1. Do I have to go back through the security line when changing terminals?
  2. If yes, should I get 'Fast Track' at Heathrow?
  3. Do you have any other suggestions?
Posted by
6651 posts

The Heathrow website has a very good section on connecting flights: https://www.heathrow.com/connecting-flights

And yes, you will need to go through security, but not Immigration, as long as your flights are on a single ticket. Basically you follow the Connection signs once you deplane from your first flight.

Posted by
17932 posts

Anyone connecting in the UK will have to go through security unless they were traveling from another UK airport.

Just follow the purple Flight Connection signs. You will get a bus from T5 to T3, go through a separate security line for connecting passengers at T3, and then go to your gate.

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