However, he has to fly back and forth for half an hour to use up the fuel.

That could change, of course, once the offers start flying back and forth.

There was no way he could have planes flying back and forth over so many miles of country looking for one man.

They didn't say anything, but I got the sense of messages flying back and forth through the air.

She flew back and forth before him, waving her arms.

They stared at one another; questions flew back and forth.

For days now, as he flew back and forth over their lines, they had not even bothered to look up.

They were flying back and forth over a large barn!

I'll fly back and forth when there is any need.

There've been messages flying back and forth about you all night.