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Have you walked the tunnel between Heathrow Terminal 5, T5B and T5C?

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I was reminded this week that we haven’t talked about the ‘secret’ tunnel between the three parts of Heathrow Terminal 5 for a while.

When travelling between the main building in Terminal 5 and Terminal 5B or 5C, you are likely to take the train.

You may also find yourself taking the train from 5B to 5C if you have a 5C departure and are using the Galleries Terminal 5B lounge. Our review of the refurbished British Airways lounge in Heathrow’s Terminal 5B satellite is here.

You don’t need to take the train, however.

Heathrow walkway tunnel max burgess molly burgess

If you press the bottom button in the lift in 5A, 5B or 5C then you go below the level of the transit train and into this tunnel.  It has travelators so the walk is surprisingly quick.

Heathrow Airport Terminal 5 tunnel

and

Heathrow Airport Terminal 5 tunnel

It can often be just as fast to walk, since you are not waiting around for the train. When the train does arrive, it takes a minute or two for passengers to unload first and the doors on the departure side to open. By the time it is ready to board you can be halfway down the tunnel and well on your way to the Terminal 5B lounge.

Using the tunnel is also the ONLY way to get from Terminal 5B to Terminal 5 to take a flight. You might do this if you decide to use the quieter lounge in 5B. Taking the train from 5B to the main building drops you at immigration and you cannot get back to the departure gates.

The tunnel is also a good way to stretch your legs before sitting for many hours on a long haul flight. Give it a go and see what you think.

Comments (49)

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  • Nico says:

    I have used the tunnel a few times, takes similar time as the train to terminal B and very good to stretch the legs. They could have added more travelators and some decoration, it feels like emergency stairs never meant to be used.

    • BA Flyer IHG Stayer says:

      These walkways weren’t initially designed for passengers but only for staff and at the start there weren’t any travelators or decoration at all!

      They were only installed later – a sign of that are the ramps to access them because they were built on top of the flooring not into it as would be expected.

      • Nico says:

        Make sense then, could have done a little more to make them user friendlier when they changed their use, but guess it would have hurt heathrow bottom line

        • Rhys says:

          I think you underestimate how many people know about them! Heathrow does not publicise them at all – the most you’d see is the walkway button on the lift.

    • jj says:

      Also worth noting for those who are impatient, the lifts are much faster than the escalators in the satellites.

      Since discovering the lift/tunnel combo, I have been the first person on my flight to the baggage reclaim every time I have arrived in T5B or T5C.

    • Ironside says:

      They have put up a few pictures now, if memory serves (it was about 18 months ago now).

      • Barrel for Scraping says:

        The pictures are a lot older than that. The queen and prince Philip are on there. They’ve been up at least 10 years

  • Aliks says:

    A lot of airports are implementing this “toast rack” model for their satellite terminals, with a series of parallel piers linked by a shuttle train.

    Are there any other examples of deep level walkways with travelators?

    • The Lord says:

      Atlanta sort of but it’s not exactly hidden like this walkway is.

    • insider says:

      At Heathrow, the satellites are probably as close together as they can be given the space constraints at the site. If I think of another example, Madrid T4, the walk between satellite and main terminal would probably be 30 mins!

  • TomB says:

    Always go to the B lounge regardless of where the flight leaves. It’s so much quieter and more pleasant than the ones directly after security. Also unless you’re a slow walker I’d say you can walk back to A gates in just over 5 mins.

  • The Original Nick. says:

    I’ve walked it a few times. It’s something different now and again and a nice way to stretch those legs before a long haul flight.

  • Mark says:

    Had to use this a few weeks ago. For the first time ever we were told at check in that our flight was going from the B gates but because the inbound flight was delayed it ended up being from the A gates.

    • The real Swiss Tony says:

      This is interesting – I went into Galleries North at T5 maybe 3 weeks ago and the reception desk seemed a lot more proactive in directing the relevant passengers to the B lounge.

      Hope it continues because those Galleries lounges in A still get very busy. If I’ve only got 30-45 mins before boarding from A, no way I want to schlep to the B gates.

  • Ian says:

    Been using it for years as this is the route of buggy from one area to another.

  • Froggee says:

    We prefer to run. Just release the boys and give chase.

  • Andrew. says:

    There’s also the parallel tunnels when you arrive at 5B/5C. Again often quicker than waiting for the shuttle, and good to stretch the legs after a long flight. Often see air crew heading straight for it.

    Outbound, at the far end of the shuttle platforms there’s an emergency exit door that looks like it shouldn’t be opened, but has next to it a sign that highlights that there is a walking alternative. I really don’t like that sort of presentation conflict.

    • Barrel for Scraping says:

      I’ve gone through that door. You really do get the feeling that you’ve walked into an emergency exit that you’re not supposed to go through. I think the one at the end of the platform is mainly if there’s an issue with the train they can direct you to it. If you intend to use the tunnels to begin with then it’s best to select that floor when in the lift.

    • Occasional Ranter says:

      Just used these when arriving at T5B off BA 16 from Singapore. Take the lifts down to -4 and it’s all obvious from there.

      Definitely quicker than the transit train if your legs are ok.

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