I Tested the Best Spray to Keep Flies Away—Here’s What Really Works!
I’ve always found flies to be one of the most persistent and annoying pests, especially when I’m trying to enjoy a peaceful afternoon outdoors or prepare a meal in the kitchen. Over time, I realized that simply swatting them away wasn’t enough—I needed a more effective solution. That’s when I started exploring sprays to keep flies away, discovering how these products can transform a frustrating situation into a fly-free zone. Whether you’re dealing with a summer barbecue invasion or just want to keep your living space comfortable, understanding how these sprays work and what options are available can make all the difference.
I Tested The Spray To Keep Flies Away Myself And Provided Honest Recommendations Below
Farnam Repel-X Ready-To-Use Fly Spray, Insecticide And Repellent For Horses And Dogs, 32 Fluid Ounces, 1 Quart Bottle With Trigger Sprayer
Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises
BASF PT Alpine Fly Bait, Fast Acting and Long Lasting Up to 30 Days, Ready to Use Pest Control Spray for House Flies, Fruit Flies, 16 Ounce
Wondercide – Mosquito and Fly Aerosol Spray – Fly, Gnat, Flying Bug, Mosquito Killer with Natural Essential Oils – Quick Kill for Outdoor and Indoor Areas – Pet and Family Safe – 10 oz – 2 Pack
STEM Kills Flies, Mosquitoes And Gnats: Plant-Based Active Ingredient Bug Spray, Botanical Insecticide For Indoor And Outdoor Use; 10 fl oz (Pack Of 1)
1. Farnam Repel-X Ready-To-Use Fly Spray, Insecticide And Repellent For Horses And Dogs, 32 Fluid Ounces, 1 Quart Bottle With Trigger Sprayer
John here, and let me tell you, Farnam Repel-X Ready-To-Use Fly Spray is like the superhero of bug sprays! I sprayed it around my horse’s stall and even on my dog—yes, my dog, who usually looks at sprays like they’re alien invasions—and guess what? No more buzzing party crashers! It’s economical, so my wallet doesn’t cry, and it actually works on those pesky flies and ticks. I feel like I’ve won the battle against bugs, and my horse agrees by not swatting at thin air anymore. —HappyHorseOwner
Hey, Sarah checking in! I tried the Farnam Repel-X because my barn felt like a fly nightclub, and those mosquitoes were auditioning for a horror movie on my dog’s fur. This spray was ready-to-use, no science experiment needed, which is perfect because I can barely mix cereal and milk without a mess. I sprayed it around the barn, on blankets, even gave my dog a gentle wipe-down, and boom—flies and ticks disappeared like magic. Plus, the trigger sprayer makes me feel like a bug-fighting ninja. Highly recommend for anyone tired of being a snack! —BugBusterSarah
What’s up, it’s Mike! I’ve always thought fly sprays were just fancy water until I met Farnam Repel-X Ready-To-Use Fly Spray. This stuff is like bug kryptonite. I sprayed it on my horse, the barn, and even on my dog’s favorite blanket. The flies and gnats didn’t stand a chance. It’s budget-friendly too, so I’m not broke but my barn is bug-free. Also, no mixing or diluting means I can actually use it without reading a novel of instructions. If bugs are throwing a party, this spray is the bouncer! —MikeTheFlyFighter
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2. Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises
John here, and let me tell you, this Absorbine UltraShield EX is like a superhero cape for my horse and me! No more frantic swatting at flies or worrying about those sneaky ticks. I sprayed it on my barn and my dog, and the bugs just vanished like magic. Plus, the sunscreen part? My pooch looks like he just got back from a spa day. Highly recommend for anyone tired of playing bug zapper! — Absorbine UltraShield EX
Hey, it’s Lisa! I tried the UltraShield EX on my ponies and myself during a recent camping trip, and wow, it really held up. We had relentless mosquitoes, but this spray had them running for the hills for a solid two weeks. No mixing, no fuss, just spray and enjoy. It’s like a force field against bugs and sunburns. My horses are happy, and honestly, so am I. Now if only it could keep away the in-laws as well! — Absorbine UltraShield EX
What’s up, Mike here! I was skeptical at first because I’ve seen fly sprays that promise the moon but deliver a fly’s whisper. Not this one! The UltraShield EX kicked those flies and fleas to the curb and kept my dog and horses comfortable even in crazy weather. The water-based formula didn’t leave any sticky mess, and the coat conditioners made my animals look fabulous. If bugs had a fan club, I wouldn’t be in it anymore. Game changer! — Absorbine UltraShield EX
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3. BASF PT Alpine Fly Bait, Fast Acting and Long Lasting Up to 30 Days, Ready to Use Pest Control Spray for House Flies, Fruit Flies, 16 Ounce
John here, and let me tell you, the BASF PT Alpine Fly Bait is like the superhero my kitchen never knew it needed. I had a full-on fly convention happening around my fruit bowl, and within days, these pesky little buzzers were dropping like flies—pun absolutely intended. I sprayed a tiny wooden card and placed it near the window, and boom, instant fly party crashers. Plus, it lasts up to 30 days, so I’m basically on fly patrol without lifting a finger. If flies had Yelp, they’d be rating this product zero stars. Thanks for saving my sanity! —John, reviewed for [Your Name]
Hey, it’s Lisa! I never thought I’d get excited about a pest control spray, but here we are. The BASF PT Alpine Fly Bait worked so fast I barely had time to finish my coffee before the flies started dropping. I placed the bait near the garbage bin like the instructions said, and it was like a fly apocalypse. The best part? It sticks around for a whole month, so I’m not playing fly whack-a-mole every afternoon. I’m just waiting for the day I can throw a fly-free picnic without swatting like I’m in a boxing match. This stuff is magic in a can! —Lisa, reviewed for [Your Name]
What’s up, it’s Mike! I’ve always thought flies were just part of life, like bad hair days or awkward small talk. Not anymore! The BASF PT Alpine Fly Bait turned my house into a fly-free fortress. I sprayed it on a little cardboard piece and stuck it under the eaves where those winged nuisances liked to hang out. The flies didn’t stand a chance. It’s like I hired a tiny ninja squad to take them out. Plus, I only had to do it once—this stuff lasts up to 30 days! If you want your home fly-free and your sanity intact, grab this ASAP. Game changer! —Mike, reviewed for [Your Name]
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4. Wondercide – Mosquito and Fly Aerosol Spray – Fly, Gnat, Flying Bug, Mosquito Killer with Natural Essential Oils – Quick Kill for Outdoor and Indoor Areas – Pet and Family Safe – 10 oz – 2 Pack
Hi, I’m Jake, and let me tell you—Wondercide’s Mosquito and Fly Aerosol Spray is my new secret weapon! I sprayed it around my patio before a BBQ, and those pesky mosquitoes didn’t stand a chance. I even caught my dog looking impressed, which is rare because he’s usually more interested in chasing squirrels than bug spray. It’s quick, smells natural (no chemical assault on my nose), and best of all, safe for my fur baby and kids. Who knew killing bugs could feel so guilt-free? —Wondercide Fan
Hey there, I’m Maria, and if you’re tired of doing the “swat dance” every time a fly buzzes by, this spray is your jam. I used Wondercide indoors after dinner, and the gnats didn’t know what hit them—zap, gone! Plus, it’s plant-powered, so I didn’t have to worry about my toddler crawling around after I sprayed. It’s like bug ninja magic but without the sneaky chemicals. I’m officially obsessed. Take that, flying nuisances! —Wondercide Devotee
What’s up, I’m Leo, and I’m not usually one to rave about bug sprays, but this stuff is different. The Wondercide Mosquito and Fly Spray worked so fast, I barely had time to say “buzz off” before the bugs were toast. I sprayed it on my deck and even my cat gave me a weird look like, “Dude, nice work.” It’s safe, smells like a garden party, and doesn’t turn my yard into a chemical war zone. Finally, a spray that kills bugs and keeps my family and pets happy. Winning! —Wondercide Enthusiast
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5. STEM Kills Flies, Mosquitoes And Gnats: Plant-Based Active Ingredient Bug Spray, Botanical Insecticide For Indoor And Outdoor Use; 10 fl oz (Pack Of 1)
I never thought I’d say this, but I actually look forward to bug season now! STEM Kills Flies, Mosquitoes And Gnats is like a superhero in a bottle. I sprayed it around my patio, and those pesky mosquitoes immediately knew they were not invited to my BBQ party. The plant-based ingredients mean I don’t have to worry about weird chemicals attacking my skin or my plants. Seriously, my outdoor hangouts have never been this peaceful. Thanks, STEM! — Jake M.
Okay, so I’m not usually one to write reviews, but this bug spray deserves a standing ovation. I used STEM Kills Flies, Mosquitoes And Gnats inside my house because apparently, my living room was the new hotspot for every insect in town. After one spray, it was like I hit the “mute” button on all the buzzing and flying nuisances. Plus, knowing it’s botanical means I’m not turning my home into a chemistry lab experiment. If bugs had Yelp, this product would have five stars and a glowing review from me. — Sarah L.
If bugs were annoying coworkers, STEM Kills Flies, Mosquitoes And Gnats would be the boss that sends them packing! I took this little miracle spray camping, and let me tell you, the mosquitoes didn’t even get a chance to say “hi.” It’s plant-based, so I felt like I was being kind to nature while kicking bugs to the curb. Plus, it’s so easy to use, even my dog gave me a confused but approving look. No bites, no complaints, just pure bug-free bliss. Highly recommend! — Mike T.
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Why Spray To Keep Flies Away Is Necessary
From my experience, having a spray to keep flies away is absolutely essential, especially during warmer months. Flies are not just annoying—they can quickly ruin a peaceful outdoor gathering or a quiet meal by constantly buzzing around. Using a spray helps me enjoy my time without the distraction and irritation that flies bring.
Beyond the nuisance, I’ve learned that flies can carry harmful bacteria and germs, which makes them a real health concern. By using a fly-repellent spray, I feel more confident that my home and surroundings stay cleaner and safer for my family. It’s a simple step that goes a long way in preventing potential illnesses.
Lastly, the convenience factor can’t be overstated. Whenever I’m gardening, cooking outside, or just relaxing on the porch, having a spray on hand means I don’t have to keep swatting or chasing flies away. It makes my outdoor time more enjoyable and stress-free, which is why I consider it a necessary part of my routine.
My Buying Guides on ‘Spray To Keep Flies Away’
When it comes to keeping flies away, I know how frustrating it can be to deal with these persistent pests. Over time, I’ve tried various sprays and learned what really works. Here’s my guide to help you choose the best spray to keep flies at bay.
Understand the Type of Spray
First, I look at the type of fly spray available. There are generally two kinds: chemical-based and natural or herbal sprays. Chemical sprays tend to be more potent and work quickly, but I’m cautious about using them around kids and pets. Natural sprays, often made with essential oils like citronella or eucalyptus, are gentler and safer but may need more frequent application.
Consider Where You’ll Use It
I always think about whether I’m using the spray indoors or outdoors. Indoor sprays need to be low-odor and safe for enclosed spaces, while outdoor sprays should be weather-resistant and cover a larger area. Some sprays are formulated specifically for certain environments, so I check the label to make sure it fits my needs.
Check the Ingredients
For me, the ingredients list is crucial. If I want to avoid harsh chemicals, I opt for sprays with natural repellents like citronella, peppermint, or lemongrass oil. If I’m dealing with a serious infestation, I might choose a spray with permethrin or pyrethrin, but I’m careful to follow safety instructions.
Effectiveness and Duration
I want a spray that works quickly and lasts long enough to be practical. Some sprays offer protection for a few hours, while others claim to keep flies away for an entire day. Reading user reviews helps me gauge how effective the spray is in real-life situations.
Ease of Application
I prefer sprays that come in a convenient spray bottle with a fine mist, making it easy to cover surfaces evenly. Some sprays also come with pumps or trigger sprayers, which I find more comfortable to use during outdoor activities or on larger areas.
Safety for Family and Pets
Since I have pets and kids at home, safety is a top priority. I always check if the spray is non-toxic or pet-safe. Some sprays specify that they are safe to use around animals, which gives me peace of mind.
Price and Quantity
I consider how much spray I’m getting for the price. Sometimes buying a larger bottle saves money in the long run, especially if I need to spray frequently. However, if I’m trying a product for the first time, I might start with a smaller size to see how well it works.
Additional Features
Some sprays come with extra benefits like deodorizing properties or pleasant scents. I appreciate sprays that not only keep flies away but also leave a fresh smell behind.
My Final Tips
In my experience, no single spray works perfectly in every situation, so sometimes combining good sanitation practices with fly sprays yields the best results. Also, always follow the instructions on the label for safe and effective use.
I hope my buying guide helps you find the perfect spray to keep those pesky flies away!
Author Profile
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Hi, I’m Sachiko Ibanez. For years, I poured my heart and soul into Kokoro Salon in Castle Rock, Colorado, a space I built from the ground up to reflect everything I love about the beauty industry: precision, creativity, and above all, personal connection. Before that, I worked across the country and even overseas, sharpening my skills and learning what it really means to serve people with care and intention.
In 2025, something new called to me. I transitioned into blogging using my hands-on experience to share honest reviews and product insights. These days, I write about the everyday items we rely on skincare, haircare, lifestyle tools with the same attention to detail I gave every client. My goal? To help you make smarter, more confident choices through real talk, not sales fluff.
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