Spurs have spent most of the season either in or around the four Champions League qualifying places. The north London side beat Bolton with an injury-time goal last week to move level with fourth-placed Chelsea and will leapfrog Carlo Ancelotti's team if they win at Sunderland on Saturday evening.
"I think everyone that gets in it (the Europa League) wants to be out of it. They put reserve teams out every game," Redknapp said. "We want Champions League football again next year - it has been enjoyable and we want it."
An impressive debut season in the Champions League has seen Tottenham beat Inter Milan, FC Twente and Werder Bremen on the way to securing qualification to a second-round glamour tie against AC Milan.
With Manchester City and Liverpool having to endure tough trips to the far reaches of the continent in the Europa League this season and only 13 games remaining in the Premiership, Redknapp knows his side are now entering a make-or-break period in their push for qualification.
He said: "It will be difficult to get into the top four.
"Liverpool are coming into it now so don't write them off. They have some good players and are a good side.
"The manager has them playing and they will be close. Manchester United, Man City, Chelsea and Arsenal - you have to finish above one of them.
"It won't be easy but we have a chance. We have to keep winning, we can't afford to slip up."
Source: PA
Source: PA