How to Tie the Loop to Loop Knot

You don’t want to be the one to tie a leader when the trout rise to take mayflies off the surface.

This problem can be solved by a Loop Loop Knot.

This knot is easy to tie in just a few seconds. It allows you to attach the loops of your line to your fly line and makes it quick to reconnect your leader. You can use the Loop-to-Loop immediately by prepping a few sections and tippet.

It’s easy to pre-tie Perfection Loops in the lengths you prefer, or simply buy fly line and leader with preformed Loops.

How to tie the Loop to Loop Knot


  1. Hold the leader material (B) and looped ends (A) of your fly line.
  2. Continue to the end of the loop from A, and then continue to the end of the loop from B.
  3. Take all of Line B starting at the tag end and continuing through loop A.
  4. To tighten the connection, pull the lines.

Why Rely on the Loop-to-Loop Knot?

  • Strong –The Loop to Loop Knot’s strength is the same as the individual knots that made it. The Perfection Loop Knot is approximately 95% of the line’s strength.
  • Simple –This knot is extremely easy to tie and learn.
  • Quick –With pre-prepared lines, the Loop to Loop Knot takes only a few seconds.

The Loop to Loop Knot: What’s not to love?

Two situations in fly fishing are against the Loop-to-Loop Knot.

This is something that can happen. It is a common complaint that something like this can happen. You’ve just won a battle with a large brook trout and now your Loop to Loop Knot is stuck on a guide. Your line is broken when the fish darts.

This is not something to ignore. The combination of two Perfection Loops with a connection between them could cause problems. A good Nail Knot, a Clinch Knot, or a two-turn Uni Knot to a welding loop connection is slimmer and less likely for snags.

This issue may be overblown with preformed loops, which skip knots entirely. These manufactured loops used to be awkward and large years ago. But they are almost perfect now.

If they are available on your line, I recommend that you use them.

If you use long leaders, the second situation will happen. It is slow to pull the leader’s foot through a loop, which defeats much of the purpose.

You should consider using leaders that are longer than five to six feet.

The Loop to Loop Knot In Braid and Fluorocarbon

Because the Loop-to-Loop connection is a loop-to-loop connection, knot integrity depends on the knots that make the loops and not the connection itself.

These are most commonly Perfection Loops. As we have discussed, this knot holds in the fly line, monofilament, and fluorocarbon like it has been dipped into Superglue.

The Loop to Loop Knot is a good choice if you need to connect braided lines.

What Happens When Loop to Loop Knots FAIL?

The Loop to Loop Knot connects the fly line to a leader quickly and easily. Its integrity is almost entirely dependent on the knots used in the formation of the two connected loops. We can’t be too precise about points where it might fail.

Nevertheless, it is easy to make a mistake that leads to failure.

  • Tie the knot in a frayed or damaged string you should inspect your line for damage such as fraying or nicks. A damaged line won’t give its full strength and can cause sudden knot failure.
Lewis Mark is a vastly experienced fly fisher. His encyclopedic knowledge of fly tying has led to start blog on fishing. He also review Fishing equipment based on his knowledge and experience.