The Scottish Palestine Solidarity Campaign, which was coordinating the British arm of the visit, said its chairman Mick Napier, 64, a university teacher, was amongst four Scots arrested at Israel’s Ben Gurion Airport.
The flight also included five English and three Welsh people.
The campaign said the specific charges against them is still unclear.
“I spoke to consular staff this morning who told me that the arrest was quite rough. They were all handcuffed and shackled and put into vans after standing around for quite a long time, and you can see from their ages that a lot of them are retired.
Otherwise they`re all fine”, said Sofiah Macleod, the UK-based contact for the campaign.
She said that travel to the West Bank is theoretically open to British passport holders, unlike Gaza, which is currently under Israeli blockade.
“We have received reports of a number of British nationals being detained at the airport in Tel Aviv. We have a consular team at the airport who are seeking access to them to ensure that we can provide the appropriate assistance”, said a Foreign Office spokesman.