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Terminal 4 to 5 Transfer at Heathrow

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Costa Mesa...
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Terminal 4 to 5 Transfer at Heathrow

We will be arriving at Terminal 4 on United Airlines at 12:05. We need to catch the 15:00 flight to Paris on British Airways. These are obviously separate tickets, and we will check in online for the BA leg before travel. We only have carry-on luggage. From Heathrow's website, we know that it will take 20 minutes to transfer between terminals. The question is whether we follow the signs to "connecting flights" upon arrival at Terminal 4 (given that we do not have to retrieve any checked-in luggage), or are we required to leave the secure area and go through immigration because we do not have a "through" ticket? If it is the latter, will 3 hours be enough to catch our BA flight?

Vancouver, Canada
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1. Re: Terminal 4 to 5 Transfer at Heathrow

Without checked baggage and as long a you check in on line, you should be able to use the Flight Connections bus from T4 to T5 rather than go through passport control and make a landside connection. If for any reason you cannot print boarding passes for the flight to Paris, there is a BA desk at T5 Flight Connections where you can collect them.

You will go through Security at T5 before going through to Departures. Keep in mind that you must be checked in (which you will have done) and completed Security no later than 35 minutes before scheduled departure time.

You should be all right with the time you have allowed, as long as the UA flight is not delayed in arriving at T4.

Costa Mesa...
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2. Re: Terminal 4 to 5 Transfer at Heathrow

Thank you, TravellerPlus!

3. Re: Terminal 4 to 5 Transfer at Heathrow

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