Best* Flea Collars for Dogs
Discover some of the most effective flea collars for dogs to help fight flea and tick infestations and ongoing preventive treatment.
What to look for in flea collars for dogs
Good ingredients
You want your dog’s flea collar to be effective yet non-irritating. Look for flea treatment ingredients that are proven to be effective and safe for dogs, and keep in mind any particular allergies or skin issues your dog might have.
Comfort
The best flea collar for your dog will fit correctly and be constructed from comfortable materials. It should be easy for your dog to wear and durable enough to last until the end of its recommended use.
Quality and Value
Flea collars for dogs should have beneficial ingredients, durability and a price you feel comfortable paying.
Pet Parent Faves
These are the flea collars for dogs most often chosen by Petco’s pet parent customers, with effective ingredients, durable designs and a range of sizes to fit your pup.
Seresto
Flea and Tick Collar for Large Dogs
Big dogs need the best flea and tick collar protection. This flea collar from Seresto lets your dog live a full and active life as it kills fleas and ticks through contact, not through biting. It can be worn with your dog’s regular collar, withstands water and sun exposure and even lasts through a monthly shampoo. Your dog can go for an occasional swim and run around outside without sacrificing flea and tick protection. And each collar lasts up to 8 months. No wonder it’s the top-seller of the best flea collars for large dogs.
Features:
- Available in packs of 1 or 2 collars
- Provides up to 8 months of protection
- Kills on contact, not through bites
- Effective against both fleas and ticks
- Can be worn along with a regular dog collar
- Non-greasy and odorless
Seresto
Flea and Tick Collar for Small Dogs
There’s no dog too small to fall victim to fleas. This flea and tick collar for dogs provides up to 8 months of flea and tick fighting power and begins working within 24 hours of application. Existing fleas and ticks are killed, and re-infesting pests are repelled without the need to apply an ointment to your dog’s skin by hand. It can be worn alongside your dog’s regular leash collar, so go ahead and pick out whichever dog collars, leashes and harnesses you like.
Features:
- Available in packs of 1 or 2 collars
- Provides up to 8 months of protection
- Effective against both fleas and ticks
- Good for dogs under 18 lbs.
- Kills on contact, not through bites
Sentry
Dual Action Flea & Tick Collar for Dogs
Dog flea and tick prevention work best when it becomes a regular part of your routine. And the best flea collars for dogs are easy to incorporate seamlessly into your life. It’s hard to think of a more streamlined approach to flea treatment for dogs than a flea- and tick-killing collar that lasts 6 months. All you have to do is swap out your dog’s flea collar twice a year.
Features:
- Available in packs of 1 collar
- Provides 6 months of protection
- Waterproof
- Kills both fleas and ticks
PetArmor
Plus Flea & Tick Collar for Dogs, Pack of 2
With two 6-month collars in every package, one purchase can keep your dog protected against fleas and ticks for an entire year. These collars don’t just work on adult fleas—flea larvae and eggs are targeted too. This breaking of the flea lifecycle doesn’t just fight any existing fleas on dogs—it helps prevent future outbreaks by killing fleas before they reach adulthood.
Features:
- 2 collars per package for a full year of flea fighting
- Each collar provides 6 months of protection
- Waterproof
- Kills fleas, flea eggs and flea larvae
- Works against both fleas and ticks
Vet’s Best
Flea + Tick Repellent Dog Collar
If your dog has skin sensitivities or experiences reactions to harsh chemicals, you may find yourself searching for safe flea collars for dogs that are also gentle. The plant-based formula in this flea collar lets you skip the chemicals without resorting to home remedies for fleas on dogs. Cedarwood and peppermint oil repel fleas and ticks for up to 4 months, and the durable collar is phthalate- and PVC-free.
Features:
- Available in packs of 1 collar
- Provides 4 months of protection
- Plant-based formula
- Free of chemicals
- Repels fleas and ticks with a cedarwood and peppermint oil blend
- Water-resistant
PetArmor
Flea & Tick Collar for Dogs, Large
When you’re looking for the best flea and tick collar for your large dog, select one that will fit them comfortably. A collar that’s too snug can be unpleasant, irritating or even unsafe, so opt for a collar designed with big pups in mind. This one from PetArmor is good for dogs 12 weeks and older with necks up to 22-inches. It works against both fleas and ticks, and its waterproof formula means your dog can stay protected in any weather.
Features:
- 2 collars per package for a full year of flea fighting
- Provides up to 6 months of protection
- Works against both fleas and ticks
- Waterproof
- Designed for dogs with necks up to 22-inches
PetArmor
Flea & Tick Dog Collar, Small
Your dog may be small, but your flea protection doesn’t need to be. The best flea collar for small dogs should offer proportionally just as much protection as the best flea collars for bigger dogs. This 2-pack of collars that each provide up to 6 months of flea and tick resistance helps you fight infestations for a full year. The waterproof design means you won’t have to worry about a loss of effectiveness during walks in the rain or trips to the beach.
Features:
- 2 collars per package for a full year of flea fighting
- Provides up to 6 months of protection
- Good for small dogs
- Fights fleas and ticks
- Safe for dogs 12 weeks and older
Tickless
Classic Pet Orange Chemical-Free Tick & Flea Repellent for dogs
The best flea collar for dogs with sensitive and easily irritated skin might be a device that’s not a collar at all—and that uses no chemicals, oils or fragrances. This alternative to a flea collar for dogs is an ultrasonic device to repel fleas and ticks, which means it can even be used on young, elderly or even sick dogs. Simply attach the small device to your dog’s regular collar. As gentle as this device is, it’s 94% effective against fleas and ticks and can last up to a full year. And the bright orange color means you’ll never have trouble locating it.
Features:
- Includes 1 ultrasonic repellent attachment
- Provides up to 12 months of protection
- Ultrasonic flea and tick prevention
- Free of chemicals, oils and fragrances
- Good for sensitive dogs
- 94% effective against fleas and ticks
Tickless
Classic Pet Black Chemical-Free Tick & Flea Repellent for dogs
All the same parasite fighting attributes as the orange Tickless tick and flea repellent, but in a basic black color that you may hardly even notice once it’s on your dog’s collar. Looking for the best flea collar for puppies? Try this ultrasonic device that doesn’t contain any chemicals. It lasts up to a year and remains over 90% effective from season to season.
Features:
- Includes 1 ultrasonic repellent attachment
- Provides up to 12 months of protection
- Ultrasonic flea and tick prevention
- Neutral black color
- Safe for young and old dogs alike
- Safe for sick and pregnant dogs
- Fragrance-free
Tickless
Classic Pet Pink Chemical-Free Tick & Flea Repellent for Dogs
Since you can fight fleas on dogs and make a personalized statement at the same time, why not try the Tickless ultrasonic tick and flea repellent device in an attractive pink color? You’ll still get the year-long, chemical-free protection offered by other Tickless devices, and you can choose a new color after every year of use.
Features:
- Includes 1 ultrasonic repellent attachment
- Provides up to 12 months of protection
- Ultrasonic flea and tick prevention
- Pink color to customize your dog’s collar
- Free of fragrance and oil
- Contains no chemicals
We’re here to help
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Learn More About the Best Flea Collars for Dogs
At first glance, fleas on dogs look like tiny egg-shaped specks about the size of gnats crawling on your dog’s skin or through their fur. They don’t fly, but they do a good imitation with their tremendously high leaps. If you examine a flea more closely, you may notice that it has a reddish-brown or black hue and that its body is taller than it is wide, measuring far more from top to bottom than from side to side—almost as though it’s been flattened between two books on a shelf. Fleas are incredibly hard to squish because of their armored exoskeletons, and they leave behind itchy red bug bites. If you see these fleas, consult your veterinarian to determine the best next steps.
Your dog is most likely to get fleas from other animals. Romps at the dog park, playdates with other pups and encounters with any other mammals can put your dog at risk of flea infestation. Your dog can also get fleas just by spending time outside and attracting fleas from the environment. But remember that even if you have a dog who spends most of their time indoors, they can catch fleas from other dogs, cats or even people who go in and out of the house. That’s why a flea collar for dogs of all activity levels and lifestyles is a smart preventive measure. Consult your veterinarian about what might be the best preventive actions and treatment plan for your pup. Save money with Petco’s dog deals while shopping for some of our top-rated dog flea collars.
Dogs share with us their love, companionship, entertainment—and sometimes, their fleas. If your dog has a flea infestation, you might find yourself with a series of itchy red bumps, particularly on your feet and legs—or within a flea’s jumping distance. However, while your dog’s fleas may occasionally jump on and even bite you, it’s extremely unlikely that you will develop an infestation, as fleas do not like to live on people. Your dog is a much more hospitable host, with lots of cozy fur to hide in. Still, even the odd bite can be irritating, so protect both yourself and your canine companion with regular flea treatment for dogs.
Preventive treatment is the best way to keep your pup comfortable and safe from flea- and tick-borne diseases. Apply the best flea collar or medicated treatment recommended for your dog as often as instructed. If a flea infestation is already in progress, look for flea & tick collars for dogs that are designed to disrupt the flea life cycle, killing both adult and immature fleas. This will help prevent future infestations. And if you end up needing to attack the problem with a medicated flea bath, you can browse some of Petco’s best dog treats to reward your best friend with afterward.
*Based on petco.com sales data.
