Why Trolling Fly Lines Give You the Edge When Trolling for Trout

When most anglers think of trolling for trout, they picture downriggers, lead-core lines, divers, and snap weights. But there is a powerful tool most overlook or do not even know about — trolling fly lines. Not developed for fly fishing, these lines are a staple in Maine for Browns and landlocked Atlantics but now gain favor among west coasters, earning a place in trolling arsenals coast to coast, especially among trout anglers who want a more natural and stealthy presentation.

In this article, we will explore the two trolling fly lines that I use and why trolling fly lines are a game-changer when it comes to trolling for trout and how you can take full advantage of them.

  1. A More Natural Presentation
    One of the biggest advantages of trolling fly lines is the way they present the fly or lure. Unlike lead-core lines, fly lines allow flies and other lures to move more naturally in the water, mimicking baitfish.

The Cortland Line Company makes several different trolling fly lines to put you in the game, The two I personally use are:

  • Cortland level trolling line: the level trolling fly line features a 150 ft overall line length with a type 3 sink rate. What is important to note with this line is that it weighs 2.12
    ounces and with the whole 150 ft deployed it fishes 12-14 feet deep at 2mph.
  • Cortland Level sinking line: these lines are available in three different weights. The 6/7 is 150 ft and with the entire line deployed it weighs 3.429 ounces and gets down to 25-27 ft at 2 mph.
  1. Stealth is Built In
    Trolling fly lines excel at quiet, low-profile presentations. If you are trolling on clear lakes or fishing spooky trout, the smooth coating does not emit any off-putting noise. Trolling fly lines sink smoothy and quickly, glide through the water silently, and do not rely onbulky hardware to get to the right depth. The result? More confident strikes, especially from bigger, wary fish.
  2. Depth Control Without Hardware
    If you are not using downriggers or lead-core, getting to the right depth can be tricky. That is where trolling fly lines can shine. With different GPF weights available—you can choose a line that naturally hits the depth where trout are feeding. Just vary your trolling speed and let out more or less line to fine-tune your presentation. No added weight, no guesswork.
  3. Lightweight Gear, Heavyweight Results
    Trolling fly lines pair well with fly rods, fly reels, and mooching reels make for a funner experience when a fish hits. You will feel every head shake and run, unlike with heavy conventional trolling setups. This finesse approach also gives you more versatility—you can go from trolling in lakes for trout, rivers, or bays for striped bass and even the ocean for salmon.
  4. Perfect for Both Trolling Flies and Lures
    Trolling Fly lines are made for this. Whether you are pulling trolling flies or your favorite lure, trolling fly lines keep them in the strike zone with ideal action.
  5. Ideal for Slower Speeds and Finesse Tactics
    Fly line trolling excels at slower speeds—often between 0.8 to 1.5 mph—which can trigger bites from sluggish or selective fish. It is an ideal tactic for:
  • Cold water conditions
  • Early mornings or late evenings
  • High-pressure systems when trout get finicky.
    If conventional trolling is drawing blanks, downsizing to a fly line setup, and slowing down can be the key to success.
  1. A Simpler, More Streamlined Approach
    Trolling with fly lines does not require complex rigs. A fly rod, spinning rod or light mooching rod. A large capacity fly reel or mooching reel, the desired length of leader, and a fly is all you need. It is easier to set up, adjust, and manage, especially for solo anglers or those in smaller crafts. It is also great for those who want to fish more and fiddle less.

How to Get Started with Trolling Fly Lines

If you are new to the technique, here is what you will need:

  • Rod: A 6–8 weight fly rod. Medium action spinning rod or a light mooching rod.
  • Reel: A fly reel or mooching reel with enough capacity for fly line and backing.
  • Line: Choose a trolling fly line type based on desired depth.
  • Leader: 10-30 feet of 12–14-pound fluorocarbon or mono.
  • Flies: FIN JUNKIE INNOVATIONS trolling flies

Start by trolling using S-turns or speed changes to add or reduce action and vary your depth until you start getting strikes.

Final Thoughts
Trolling fly lines for trout is not just an alternative—it is often the better choice. With stealth, control, and finesse built right in, Trolling fly lines can out fish conventional gear, especially in
clear water and under tough conditions. If you are looking to step up your trolling game and bring more trout to the net, it is time to spoil up a trolling fly line and see the results for yourself.