I'm not usually anxious before travel, but I'm due to arrive at Heathrow on 2nd July and "Extinction Rebellion" have apparently threatened major disruption (drones?) at Heathrow on 11 consecutive days during July. No more precise info. seems to be available yet, but I'm thinking I should at least do some contingency planning. What other airports with long-haul capacity are likely to serve flights diverted from Heathrow? I need to get to Norwcich the same day and was planning to take the Nat. Express coach to get there - slower but less complicated with luggage.
Any suggestions as to the best way to monitor the situation as my departure date approaches?