Reem has done a great job compiling all the free wifi hotspots in airports across the the world
Tel aviv is one of them and is one of my favourite airpots for that. Airport are still charging ridiculous amounts for an hour of wireless connection. Over time this will disappear as more and more travellers will have alternative options (data roaming plan, 3G laptop cards...) and wireless operators won't have the choice but changing their ridiculous pricing. But for now we are stuck. Like water in the bathroom, Wifi should be a free or very cheap commodity. There are no costs reasons what it is charged so high. One day this will change.
So if you travel this list should be useful. You can also check the Google results if you have time
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