The 21-year-old goalkeeper made four appearances for Stoke last month but has lost his place in the starting line-up following the return of Asmir Begovic from injury.
With Joe Hart almost certain to travel to Brazil, Butland is in direct competition with Celtic's Fraser Forster and Norwich's John Ruddy for the two remaining goalkeeper positions.
And the youngster acknowledges that he stands no chance of making Roy Hodgson's squad unless he is playing first-team football on a regular basis.
Butland told Sky Sports News: "Now that the transfer window is closed a loan move to the Premier League is not on the cards, so I'll either see what happens at Stoke or assess my options in the Championship.
"If I'm not playing, there is no way I can be chosen for any squad. I need to be playing in order to give myself a chance of going (to Brazil)."
Butland added: "I'm always confident in my ability; you have to be as a goalkeeper. If I'm playing well, I have a chance.
"All I can focus on is playing as many games as I can at the highest level. If that leads me to the World Cup, then brilliant. It's certainly a target of mine."