British Airways has taken all short haul departures from Heathrow off sale until August 15, 2022.
Flights from London City and Gatwick are unaffected, as are flights from other UK airports.
Flight searches for flights from London Heathrow for the next week bring up available flights from alternate airports.
A British Airways spokesperson told Business Traveller
“As a result of Heathrow’s request to limit new bookings, we’ve decided to take responsible action and limit the available fares on some Heathrow services to help maximise rebooking options for existing customers, given the restrictions imposed on us and the ongoing challenges facing the entire aviation industry.”