The West London side have gone four games without a win and are now 15 points off Leicester City in first and seven shy of Burnley in the second automatic promotion spot.
However, QPR do have a game in hand on the five other sides in the top six, and Redknapp is confident that his squad can come through in the closing months of the season, even if they have to go through the playoffs.
"This is the first little blip we have had all season probably and it can happen. We have got four or five of our better players missing at the moment, and that is how it has gone," the Rangers manager told talkSPORT.
"[But] it is all to play for. If we end up in the play-offs, then I still fancy us, that is how it goes."
Saturday's last-gasp defeat to struggling Charlton Athletic was QPR's third league defeat in a row.