Thomas Cook is due to outline the financial impact of the political unrest in Egypt and Tunisia this week.
The group is expected to issue reduced losses for the last quarter of 2010 than the £41.3 million reported a year earlier because the German market has picked up.
The cost of disruption in the two North African countries cost rival Tui Travel up to £30 million due to the cancellation of holidays and repatriation of clients.
Thomas Cook sells around 900,000 holidays to Egypt a year and 600,000 to Tunisia, making up an estimated 8% of its sales.
Holidays in Red Sea resorts such as Sharm el Sheikh and Hurghada have been largely unaffected by the disruption in Egypt, but operators have had to fly customers home from Luxor following Foreign & Commonwealth Office travel advice.