London's main international hub scores pretty low on a few fronts – distance from the city, the cost of parking and punctuality are all a way from the top of the scale. But the airport's lounges are what puts it in second place here, with the British Airways flagship lounge, plus SkyTeam, Oneworld and Star Alliance lounges. There are also pay-per-use lounges, too, where for as little as £15 per person ($18) you can enjoy a few little luxuries before you board.

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