The chain’s Holiday Inn Express London Heathrow T4 is sold out. At Hilton London Heathrow Airport Terminal 5, a twin guest room cost £380 on Friday. A week later it is £97.

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The price of a standard room at the Holiday Inn London Heathrow Bath Road, located close to Terminals 2 and 3, had risen to £379 by mid-afternoon, more than four times higher than the £87 cost ...