Fly Fishing Knots Every Beginner Needs

Fly fishing uses more knots than any other kind of fishing, and that scares some beginners off. It should not. You only need four knots to cover nearly everything, from the reel to the fly. Learn these four at home until your hands know them, and you will be ready for almost any day on the water.

Why Knots Matter

Every knot is a weak point. A line is strongest when it is straight, and every knot makes the line a little weaker at that spot. A good knot keeps most of the line's strength. A bad knot, or a good knot tied carelessly, can fail when a fish runs. Learn your knots at the kitchen table, not while a trout is rising in front of you.

Three habits make every knot stronger. Moisten the knot before you pull it tight, because dry line heated by friction gets weaker. Pull slowly and steadily, not in a sudden jerk. And test every knot with a firm pull before you fish it. If it slips or feels wrong, cut it off and tie it again.

1. The Arbor Knot: Backing to Reel

The arbor knot attaches your backing to the reel spool. Backing is the thin, strong line that sits under your fly line on the reel. You rarely see it, but it has to be attached right, because it is the last line of defense when a strong fish takes a long run.

Pass the backing around the reel spool. Tie a simple overhand knot in the tag end, the short loose end, around the standing line. Then tie a second overhand knot in the very tip of the tag end. This second knot acts as a stopper. Pull the standing line so the first knot slides down snug against the spool, with the stopper knot holding it in place. Trim the tag end close.

2. The Nail Knot: Fly Line to Leader

The nail knot joins the end of your fly line to the thick butt end of your leader. It makes a slim, smooth connection that slides through the rod guides easily. It gets its name because it was traditionally tied with a nail as a tool, though a short tube or a straw works the same way.

Lay the leader alongside the end of the fly line, overlapping them by several inches. Wrap the leader around both the fly line and itself several times, working back toward the end of the fly line. Pass the tag end back through the wraps and pull everything snug. The wraps grip the fly line firmly, and the connection passes through the guides without catching.

This knot takes the most practice of the four, and many anglers tie it at home before a trip. There is a simpler option: many fly lines and leaders come with loops at the end. Loop to loop is fast and reliable. If your line and leader both have loops, use them. If not, the nail knot is worth learning.

3. The Surgeon's Knot: Leader to Tippet

As you fish, your leader gets shorter. You trim it when you change flies, and nicks and tangles cost you length. The tippet is the thin, final section of line you tie your fly to, and the surgeon's knot joins new tippet to the end of your leader. It joins two lines, even lines of different thicknesses.

Overlap the end of the leader and the end of the tippet by several inches, laying them side by side. Treat the two lines as one and tie an overhand knot with both of them together. Then pass the ends through the loop a second time, making a double overhand knot. Moisten it, hold all four ends, and pull slowly until the knot seats itself. Trim the tag ends close. Two passes through the same loop, pulled tight. It is strong and easy to tie with cold hands.

4. The Improved Clinch Knot: Tippet to Fly

The improved clinch knot ties your fly to the end of your tippet, and you will tie it more than any other knot. It is strong and compact, and once you learn it, you can tie it without thinking.

Pass the end of the tippet through the eye of the hook. Wrap the tag end around the standing line several times, working away from the hook. Pass the tag end back through the small loop that formed right next to the hook eye. Then pass it through the bigger loop you just created. Moisten the knot, hold the fly in one hand and the standing line in the other, and pull slowly until it seats snugly against the eye. Trim the tag end close. If the wraps bunch up or the knot looks lopsided, cut it off and tie it again.

Practice Before You Need Them

Tie each knot ten times at home, with the line you will actually fish, until your hands do it without your eyes watching every step. Practice the improved clinch knot the most, since you will tie it on the river, and the surgeon's knot second, since tippet changes happen all day.

Check your knots through the day. After every fish, after every snag, and after every tangle, give the line a look and a pull. Retie often. Line is cheap. If you are still sorting out your setup, our guide to how to pick your first fly rod covers the rod side, and our guide to what to pack for a guided fly fishing trip covers the rest of the gear worth bringing. Four knots, tied well, will carry you through your first season and every season after that.