The chief executive of Easy Jet has called for tightened security at a number of airports, following the possible terror attack on the Russian airliner which left 224 people dead.Carolyn McCall has spent five days trying to fly home tourists stranded at Sharm el-Sheikh airport since the crisis left the travel plans of thousands in chaos.And in her first interview since the attack, she admitted that a bomb on board a plane is the issue that keeps airline chief executives awake at night.Talking to BBC, she made it clear that following the deaths on Russian flight 9268, it was time for certain airports to rethink their security.We had about 4,500 passengers in Sharm last Wednesday and brought back 1,500 of them. By the end of the weekend, we would hope to have brought back all of the delayed passengers. Ms McCallShe said: I think that in some aiports security is very tight and very strict. British airports do security very well.But I think the foreign secretary Philip Hammond is right to point out that there are other countries that airlines fly to where it perhaps needs to be tightened.When asked whether Sharm el-Sheikh was one of the airports which fell into that category, she said: I think the government has come out quite clearly and said that Sharm will have to tighten airport security.I think everybody would agree with that. Its not a blanket message, its a very specific message about certain airports around the world.This will be a global thing, not just an Egyptian thing or a North African thing.And I think passengers will be happy about that and I think airlines will support hat, because no one wants a security threat .After days of confusion surrounding whether passengers would be allowed to fly back to the UK, Ms McCall said all those stranded would be home by the weekend.Our message is we will look after our passengers as we are doing, she said.They will be comfortable, they will be in hotels. All their reasonable expenses will be paid.We had about 4,500 passengers in Sharm last Wednesday and brought back 1,500 of them.By the end of the weekend, we would hope to have brought back all of the delayed passengers.Today marks the 20th anniversary of Easyjets first flight from Luton to Gatwick, an event which is being celebrated at the airlines headquarters in Luton.Talking about Easyjet s recipe for success, Ms McCall said: Low cost flying is very quick, its very efficient and no big deal anymore.You can get to so many parts of Europe and indeed many other places without much fuss and hassle."It does it at very low fares, and it does it with very good service so our crew are fantastic, they smile, they put the customers at the centre of their thinking and you put that all together and that's why it's so successful."Join the conversation about this storyNOW WATCH: A woman who's gone on 150 Tinder dates reveals the biggest mistakes men make Click here to read full news..