Thomas is currently wearing the yellow jersey, but four-time champion Froome is his nearest challenger just a minute and 39 seconds behind.
With some questioning whether team unity might crack under the pressure, Froome told Sky News he was confident ahead of the competition’s final week.
“This is the dream scenario for us, the pressure is on our rivals to dislodge us,” he said, sitting beside his Welsh teammate.
“If a Team Sky jersey crosses that finishing line in Paris on Sunday and it’s one of us on the podium winning the Tour, as far as we are concerned, that’s job done.
“For anyone to beat Team Sky this week they will have to beat Geraint and they will have to beat me and they will have to do it at the pointy end of the Tour.”
The two British riders were speaking at their team hotel in the city of Carcassonne before going out for a team training ride ahead of some gruelling days in the Pyrenees.
Thomas added: “I don’t wake up every day thinking ‘I have to beat Froomey today’. I want to beat (Tom) Dumoulin and (Primoz) Roglic. There’s no point in me racing Chris and him racing me and Dumoulin winning the Tour. That would be bad.”
The Welsh rider also praised the fans who have travelled from the UK to support the team in sweltering conditions this week.
“The support has been insane and with the Tour starting a week later, kids are off school now, so maybe more people can come out and enjoy the Tour,” said Thomas.
“Winning the Tour would be insane too, which is why I’m not thinking about it. What will be will be.”
The Tour will finish in Paris on Sunday, where Froome is bidding to make history by winning it for the fifth time and double Olympic champion Thomas is attempting to win it for the very first time.