British holidaymakers in Sharm el-Sheikh have been warned they will have to fly home "at their own risk" if they do not return by Tuesday.
The UK Government has been working with airlines for over a week to provide tighter security at the Egyptian airport and allow travellers to fly back safely.
This has included transporting hold baggage on separate planes.
But the last of these flights will depart on Tuesday and the Government has issued a warning that holidaymakers who want to remain in the Red Sea resort after this date will have to make alternative arrangements.
A statement read: "This may involve having to travel with an airline to which enhanced UK security measures, e.g. separate baggage flights, do not apply. Travellers are advised that they do so at their own risk."
The Foreign Office is advising against all but essential travel to or from Sharm airport.
The Government suspended flights on November 4 after an Airbus 321 operated by Russian airline Metrojet crashed, killing 224 people.
Prime Minister David Cameron has said it is ''more likely than not'' that the plane was downed by a terrorist bomb.
Over 13,000 passengers have been brought home amid heightened security since flights restarted on November 6.
Airlines expect to clear the backlog of passengers whose return to the UK has been delayed by the end of the weekend.
Additional flights are being operated to ensure there is sufficient capacity to return all tourists by Tuesday.
The Government has been told by airlines that fewer than 200 of their passengers plan to remain in the resort.
Monarch announced that it has cancelled all further flights to and from Sharm after Tuesday until December 19.