I took my DS to France for a week when he was 17 months old. We had a brilliant time, the flights situation was similar, and we could only get flights from newcastle so had to drive down (from Edinburgh) and this meant leaving at 4am. This worked well for us because as morningpaper said, he was really excited to be woken and then slept in the car.
We went for flights and accomodation seperately rather than a package deal, because i found a brilliant place on the internet that was a luxurious apartment with huge balcony, in fact there were 2 balconies! there wasa cot and everything included. It was PERFECT. the place was beautiful and the balcony looked out over the St Tropez harbour. We tended to stay in at evenings, but we did go out for dinner 4 nights, and ate in the rest. i found that it was easier to keep DS up til around 8-8.30, but to give him a longer nap through the afternoon. This was also useful as when the sun was that hot between 12 and 3) it was better for him to be asleep in the apartment than out in the sun anyway. I used this time to sunbathe on the balcony!
I also found that because we got a private apartment it was a lot quieter at nights, rather than being in a resort where there are lots of older children and teenagers up til later at night.
Wre also hired a car when we were there and this came with a baby seat (although i think we had to pay extra for that, cant remember) as the area we stayed in was a little 'out of town' so it would be quieter. It was well worth it and we used it a lot.
The flights were fine, but we have been taking DS on flights very regularly since he was born, as his dads family live abroad.
I'd say though that a hotel here might be okay to leave your DS in bed and pop to hotel bar, maybe with a monitor, but i dont think i would do it abroad..
I dont know if any of this information helps, but i hope it does!