I am flying Phoenix USA to Stockholm Sweden via Heathrow/LHR. I'll have ~4 hour layover (connecting flights both Finnair). My carry on will be a package I want to mail to Germany (2 vintage framed pictures). Is it feasible/possible to do this at LHR? How easy/difficult to do?

  • 1
    Which Terminal do you arrive into? There is a Post Office landside in Terminal 3 heathrow.com/airport-guide/terminal-facilities-and-services/…
    – Traveller
    Mar 13, 2019 at 22:00
  • I removed the part about rechecking bags because it's unrelated to your main question about mail. You can post it as a separate question if you like but I'm sure it's already been answered on the site so please search first. Mar 13, 2019 at 22:42
  • Any form of customs declaration should be sent with the package. After Brexit, the package should be sent from Sweden (i. e. from within the customs union). Sep 9, 2019 at 9:47

1 Answer 1


If you have a 4 hour layover, you may need to pass through immigration and leave the terminal but that’s easily doable in 4 hours.

Here are the Post Office details at Heathrow:

The airport Post Office is on the first floor of Terminal 3 departures, in the public area before security ( it's near the security control entrance).

Opening hours: Monday to Saturday 09:00 - 17:30, Sunday 09:00 - 13:00. Telephone: +44 (0)20 8897 3463

(Heathrow Website)

Finnair flights leave from Terminal 3 anyway:

Finnair flights from Heathrow Airport will leave from Terminal 3, Zone G.

(Finnair Website)

Considering it is the same terminal you should have plenty of time. All you need to do is exit the airport through immigration. The report from July states an average of 45 minutes for NON EAA Immigration, say it takes an hour to get to the post office, you will still have at least 2 and a half hours in the case of delays before your flight.

  • Note you'd need to pass security anyways on transfer so the time delta really is just immigration.
    – user4188
    Sep 10, 2019 at 2:49

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