As others have indicated, Cairo should be hopping on your lagniappe Sunday. And as for how you could possibly fill a Sunday night to the wee hours, having visited this June, I can tell you that Cairo is a city that never goes to sleep! You will have plenty of sightseeing, restaurant, entertainment and shopping options until it is time to go to the airport, and once there, you will discover a full range of airport services open. To coordinate air schedules with European arrivals & departures, it is very common for flights to come in & go out in the wee hours of the morning. So, the international airport will be crowded & alive, especially at that busy holiday time of year.

There are so many fascinating things to do in and around Cairo, but the area covers a huge geographical expanse. You could certainly maximize your enjoyment of that last day with the help of a guide. Indeed, I would consider that day a gift to get an "up close and personal" look at such a fascinating place & culture, which is something you may be unable to do while touring with a group during the peak holiday season. Because it's the busy tourist season, I do suggest that if you decide to secure a private guide, you make those arrangements ASAP.

Congratulations on your trip decision! You are in for a highlight travel experience. I can't recommend Egypt enough!

Diana Ball near Houston, TX