On April 18, 2017, we are flying from Salt Lake City, Utah, USA on Delta Airlines flight DL 50 arriving Heathrow Airport at 1:20pm April 19, 2017, on one ticket. Then on a separate ticket, we fly Aer Lingus to Shannon Airport on flight EI 385, departing Heathrow at 2:45PM. Will we have enough time to get through customs, baggage claim and check in for the Ireland flight? How much time will be necessary to make this connection?

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    At LHR, which terminals do you arrive at and depart from?
    – MadHatter
    Commented Jan 21, 2017 at 7:12
  • According to heathrow.com/airport-guide/which-terminal., looks like arriving Terminal 3 and departing Terminal 2. The only service to Shannon is shown as Aer Lingus, so the "BA" flight is probably a codeshare (that's consistent with the flight number). Commented Jan 21, 2017 at 7:31
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    Arrive lhr terminal 3, depart terminal 2 Commented Jan 21, 2017 at 7:32
  • What time does the second flight leave? Commented Jan 21, 2017 at 8:09
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    I would not try 1:25 on a single ticket transfer! If I have my data correct, the official MCT for a connection like this is 1:15. And it's the UK so you need to clear some truly obnoxious security. Two tickets is absolutely hopeless.
    – user4188
    Commented Jan 21, 2017 at 14:18

1 Answer 1


You're arriving at Heathrow at 1:20PM and are connecting on a separate ticket to a flight departing at 2:45PM?

Forget it, just forget it, and rebook your connection immediately. There's one at 7:35PM, which you would make. But the 2:45PM one on a separate ticket? You're not nearly getting through immigration, baggage claim, from T3 to T2 and through security in that time, period.

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    Customs at Heathrow usually takes zero time if you have nothing to declare - just walk through the green exit from baggage claim. That said, I agree with the answer. Any delay in the transatlantic flight and the OP may not even have their baggage when the gate for the second flight is closing. Commented Jan 21, 2017 at 11:22
  • @PatriciaShanahan Now that's optimistic. If they're US citizens, chances are they wouldn't even be through immigration if there are several long-haul arrivals.
    – Crazydre
    Commented Jan 21, 2017 at 11:33
  • @Crazydre I'm a British Citizen, and was thinking in terms of how long it takes me from aircraft to baggage claim at Heathrow. It will be longer for any non-EU citizen. Commented Jan 21, 2017 at 11:44

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