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10 Best Fly Repellents 2025 in the United States
#1
Winner
Country Vet Farmgard Permethrin Concentrate - 1 Quart (Case of 6) 343961CVA - Gets Rid of Flies, Mosquitoes, Silverfish, Cockroaches, Fleas, Millipedes, Gnats, Fruit Flies, Ticks, Lice, Spiders
The Country Vet FarmGard Permethrin Concentrate is a versatile and powerful insecticide designed for both indoor and outdoor use. It contains a 13.3% permethrin concentration, which is higher than many similar products, allowing it to deliver 33% more finished product and effectively control pests for up to 4 weeks with a single application. This makes it a cost-effective solution for those managing multiple animals or large areas.
Rating
10.0
Chosen by1,311
Active Ingredients
Formulation
Duration of Protection
Most important from
182 reviews
#2
Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises
The Absorbine UltraShield EX 32oz Sprayer Insecticide is a robust fly-repellent suitable for use on horses, dogs, and premises. One of its main strengths is its ability to kill and repel over 70 species of pests, including flies, mosquitoes, ticks, and fleas. The formulation is water-based and ready-to-use, eliminating the need for mixing, which can be a real time-saver.
Rating
9.4
Active Ingredients
Formulation
Duration of Protection
Most important from
3606 reviews
#3
Raid Flying Insect Spray, Outdoor Fresh Scent, Kills Flies, Mosquitoes, and Other Flying Insects on Contact, for Indoor and Outdoor Use, 18oz
Raid Flying Insect Killer 7 is a spray designed to quickly kill flying insects like flies, mosquitoes, wasps, and hornets both indoors and outdoors. It uses active ingredients d-Phenothrin and prallethrin, which are common insecticides that act fast on contact. Its spray formulation makes it easy to apply directly onto insects, though you should keep it a few feet away from walls and fabrics to avoid stains or damage. The product offers immediate knockdown rather than long-lasting protection, so you might need repeated use in problem areas. One nice feature is its pleasant 'Outdoor Fresh' scent, which is less harsh than typical insecticide odors.
Rating
9.4
Safety and Skin Sensitivity
Scent
Most important from
1006 reviews
Top 10 Best Fly Repellents 2025 in the United States
#1
Winner
Country Vet Farmgard Permethrin Concentrate - 1 Quart (Case of 6) 343961CVA - Gets Rid of Flies, Mosquitoes, Silverfish, Cockroaches, Fleas, Millipedes, Gnats, Fruit Flies, Ticks, Lice, Spiders
Country Vet Farmgard Permethrin Concentrate - 1 Quart (Case of 6) 343961CVA - Gets Rid of Flies, Mosquitoes, Silverfish, Cockroaches, Fleas, Millipedes, Gnats, Fruit Flies, Ticks, Lice, Spiders
Active Ingredients: 13.3% permethrin
Formulation: Spray, dip, sponge-on, mixed with oil
Duration of Protection: 4 weeks
Safety and Skin Sensitivity: Caution around sensitive skin and pets
Scent: Coconut
Environmental Impact: Harmful to aquatic life
Chosen by 1311 this week
Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises
Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises
Formulation: water-based, ready-to-use
Duration of Protection: up to 17 days
Safety and Skin Sensitivity: sunscreens, coat conditioners
Scent: strong odors
Raid Flying Insect Spray, Outdoor Fresh Scent, Kills Flies, Mosquitoes, and Other Flying Insects on Contact, for Indoor and Outdoor Use, 18oz
Raid Flying Insect Spray, Outdoor Fresh Scent, Kills Flies, Mosquitoes, and Other Flying Insects on Contact, for Indoor and Outdoor Use, 18oz
Active Ingredients: d-Phenothrin 0.125%, prallethrin 0.1%, others
Formulation: Spray
Duration of Protection: Immediate knockdown, not long-lasting
Safety and Skin Sensitivity: Contains petroleum, sodium nitrite; avoid irritation
Scent: Outdoor Fresh
Environmental Impact: Toxic to insects and aquatic life
Farnam Repel-X Ready-To-Use Fly Spray, Insecticide And Repellent For Horses And Dogs, 32 Fluid Ounces, 1 Quart Bottle With Trigger Sprayer
Farnam Repel-X Ready-To-Use Fly Spray, Insecticide And Repellent For Horses And Dogs, 32 Fluid Ounces, 1 Quart Bottle With Trigger Sprayer
Active Ingredients: Permethrin
Formulation: Water-based
Duration of Protection: Decent duration; repeat applications needed
Safety and Skin Sensitivity: Safe over 1 month; avoid eyes; toxic cats
Scent: Pleasant
Environmental Impact: Contains permethrin; toxic to cats, wildlife
Durvet Permethrin 10%, 8oz
Durvet Permethrin 10%, 8oz
Active Ingredients: Permethrin
Formulation: Liquid concentrate
Safety and Skin Sensitivity: Safe around animals and humans
Environmental Impact: Harmful to aquatic life
Related Products
Up to 13% off
Sawyer Products SP874 Picaridin Insect Repellent Spray, 20% Picaridin, 4-Ounce, 1-Pack
Sawyer Products SP874 Picaridin Insect Repellent Spray, 20% Picaridin, 4-Ounce, 1-Pack
Active Ingredients: 20% Picaridin
Formulation: Liquid
Duration of Protection: 8 hours for flies, 12 hours mosquitoes
Safety and Skin Sensitivity: Fragrance-free, non-greasy, dries quickly
Scent: Unscented
Gordon's Permethrin 10 Livestock & Premise Spray, 1 Quart, 9291082
Gordon's Permethrin 10 Livestock & Premise Spray, 1 Quart, 9291082
Active Ingredients: permethrin
Formulation: liquid insecticide spray
Safety and Skin Sensitivity: harsh on sensitive skin; harms aquatic life
Environmental Impact: harms aquatic life
#10
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Buying Guide for the Best Fly Repellents
Choosing the right fly repellent can make a significant difference in your comfort and health, especially during the warmer months when flies are most active. Flies are not only annoying but can also carry diseases, so it's important to select a repellent that is effective and safe for your needs. Here are some key specifications to consider when choosing a fly repellent, along with explanations to help you make an informed decision.Active IngredientsThe active ingredients in a fly repellent determine its effectiveness. Common ingredients include DEET, picaridin, and natural oils like citronella or eucalyptus. DEET is highly effective and long-lasting, making it suitable for areas with heavy fly infestations. Picaridin is also effective and has a milder scent. Natural oils are less potent but are a good choice for those looking for a chemical-free option. Consider your sensitivity to chemicals and the level of fly activity in your area when choosing the active ingredient.
FormulationFly repellents come in various formulations such as sprays, lotions, wipes, and wearable devices. Sprays are easy to apply and cover large areas quickly, making them ideal for outdoor activities. Lotions provide a more controlled application and are less likely to be inhaled. Wipes are convenient for on-the-go use and can be easily packed in a bag. Wearable devices like bracelets or clip-ons offer a hands-free option. Choose a formulation that fits your lifestyle and the specific situations in which you'll need protection.
Duration of ProtectionThe duration of protection indicates how long the repellent will be effective after application. This can range from a few hours to all-day protection. Products with DEET or picaridin typically offer longer-lasting protection, while natural repellents may need to be reapplied more frequently. If you plan to be outdoors for extended periods, opt for a repellent with a longer duration to avoid frequent reapplication. For shorter activities, a product with a shorter duration may suffice.
Safety and Skin SensitivitySafety is crucial, especially if you have sensitive skin or are using the repellent on children. Some repellents can cause skin irritation or allergic reactions. Look for products that are dermatologically tested and labeled as safe for sensitive skin. Natural repellents are generally gentler but may be less effective. Always perform a patch test before full application to ensure you do not have an adverse reaction. Consider the age and skin sensitivity of all users when selecting a repellent.
ScentThe scent of a fly repellent can affect your comfort and willingness to use it. Some repellents have a strong chemical odor, which can be off-putting. Others are formulated to be odorless or have a pleasant fragrance. If you are sensitive to smells or plan to use the repellent in social settings, opt for a product with a mild or pleasant scent. Natural repellents often have a more agreeable smell due to their essential oil content.
Environmental ImpactConsider the environmental impact of the fly repellent you choose. Some chemical repellents can be harmful to the environment, particularly if they contain ingredients that are toxic to aquatic life. Natural repellents are generally more eco-friendly but may require more frequent application. If environmental sustainability is important to you, look for products that are biodegradable and free from harmful chemicals. Check the packaging for eco-friendly certifications or claims.