Booking a flight out of Green Bay with a dog or cat takes more than just picking the lowest fare. Airlines enforce distinct policies on pet carriers, health paperwork, and whether your animal can ride in the cabin at all. Green Bay Austin Straubel International Airport (GRB) serves as a low-stress departure point, but the choices you make long before showing up will shape your pet’s comfort and safety. Understanding each airline’s stance toward pets — and how those rules translate into a real trip from northeastern Wisconsin — positions you for a smoother journey, whether you’re flying to a warm-weather hub or crossing state lines for a move.

Choosing the Right Airline for Your Pet from Green Bay

The carriers servicing GRB each handle animals differently: some welcome small dogs and cats in the cabin on virtually every flight, others restrict pet travel to specific times of year, and a few relegate larger animals to climate-controlled cargo compartments. Below we break down the strongest options so you can evaluate them against your pet’s temperament, size, and health needs.

Alaska Airlines: A Leader in Pet-Friendly Cabin Travel

Alaska Airlines consistently ranks near the top for pet-friendly policies, and the experience from Green Bay holds true to that reputation. Small dogs, cats, rabbits, and household birds can travel in the cabin with you, provided the carrier fits under the seat in front of you. The standard fee is typically around $100 each way, though you should confirm current pricing on Alaska Airlines pet policy details. The carrier must be well-ventilated, secure, and soft- or hard-sided within Alaska’s published dimensions — usually no larger than 17″ x 11″ x 9.5″ for soft-sided bags. Because space underneath seats varies by aircraft, verify your specific flight’s dimensions before purchasing a carrier.

Alaska caps the total number of pets in the cabin per flight, so add your pet to the reservation the moment you book. The airline also enforces a strict no-acceptance policy for brachycephalic (snub-nosed) breeds in cargo, though these dogs and cats may still ride in the cabin if they fit in a carrier. During summer and winter months, Alaska may halt cargo pet travel entirely to protect animals from extreme temperatures on the tarmac. For Green Bay travelers, this means a summer flight to Seattle might restrict your English Bulldog to cabin-only — a crucial factor that pushes many owners toward early booking.

Delta Air Lines: Clear and Consistent Pet Rules

Delta Air Lines offers pet travel options that prioritize clarity, which is invaluable when you’re juggling a move or vacation planning. As of their latest policy update, small dogs, cats, and household birds can travel in the main cabin for a fee, again in an under-seat carrier. Delta’s dimensions for soft-sided carriers run around 18″ x 11″ x 11″, and the pet must remain inside the carrier for the entire flight. You can find full details on Delta Air Lines pet travel information. One differentiator: Delta requires a health certificate issued within 10 days of travel for all pets, even those flying in the cabin. That document must come from a licensed veterinarian and confirm your pet is free of infectious disease and fit to fly.

Delta also imposes temperature restrictions for cargo travel, and they’ve tightened acceptance for snub-nosed breeds. For flights originating at GRB, the cargo option is available on select aircraft only, so always call ahead. If you’re flying on a regional jet operated by Delta Connection, under-seat space can be smaller, so double-check with the reservation agent whether your carrier will fit. Delta’s booking system allows you to add a pet to your itinerary during the online checkout, but it’s wise to call the airline immediately to confirm availability because cabin pet slots are limited.

United Airlines: Options for Larger Pets in Cargo

United Airlines is one of the few carriers that still operates a dedicated pressurized cargo program for pets — United PetSafe. This makes United a candidate if your dog is too large to ride in the cabin. The program uses temperature-controlled vehicles on the ramp, dedicated staff, and strict health checks. You’ll find specifics on the United PetSafe program. Note that United suspended new PetSafe reservations during certain periods of high COVID or operational strain, so check current status before building your travel plan around this option.

For cabin travel, United allows small dogs and cats in an approved carrier for a fee, though the rules changed recently: pets must remain in the carrier at all times and the carrier must fit entirely under the seat. United also restricts pet travel on certain international routes and during extremely hot or cold weather. If you’re departing from GRB, you may connect through Chicago O’Hare, where United operates a PetSafe facility; make sure your layover is long enough to allow comfortable transfer time — two hours minimum is often recommended.

Frontier and American Airlines: Additional Choices from GRB

Frontier Airlines accepts dogs, cats, rabbits, guinea pigs, hamsters, and small household birds in the cabin on domestic flights for a fee, as long as the carrier fits under the seat. Frontier’s website outlines the current charge, which tends to be in the $99 range. Because Frontier operates a point-to-point model with fewer flight frequencies, securing a cabin slot is usually feasible, but always confirm your specific aircraft’s under-seat dimensions. American Airlines, depending on the route and aircraft, allows small dogs and cats in the cabin. American also has a cargo option for larger pets, though on many regional jets coming out of Green Bay, cargo capacity may be limited. Both airlines mandate a health certificate for any pet traveling as cargo, and American requires one for some international itineraries. Always call the reservations desk before booking if your pet weighs close to the 20-pound limit including carrier — gate agents can and do weigh carriers.

Preparing Your Pet for the Flight

Even the most pet-accommodating airline can’t substitute for thorough preparation. A well-prepared animal enters the airport calm, tolerates the carrier, and emerges at the destination less rattled. Preparation falls into three buckets: paperwork, hardware, and behavioral conditioning.

Health Certificates and Vaccination Records

Every airline will ask for proof of health, and the gold standard is a veterinary health certificate issued within 10 days of departure. This document confirms that your dog or cat shows no signs of infectious disease and is current on core vaccinations, including rabies. The USDA pet travel requirements page outlines what’s needed for interstate and international moves. If you’re traveling to a state like Hawaii, additional blood titer tests and waiting periods apply, so begin that process months in advance. Keep both digital and paper copies of the certificate, your pet’s vaccine history, and your vet’s contact information. Some airlines ask that the certificate be presented during check-in, not just at security, so don’t pack it away deep in your bag.

Selecting an Airline-Approved Pet Carrier

The carrier is essentially your pet’s portable bedroom for the day, so choose with care. For in-cabin use, soft-sided carriers offer more flexibility under the seat, while hard-sided carriers can be sturdier but must still compress to the airline’s exact dimensions. Look for mesh ventilation on at least two sides, a padded bottom, and a locking zipper. The carrier should allow your pet to stand up, turn around, and lie down naturally; cramped quarters cause unnecessary stress. Attach a small, spill-proof water bowl or bottle to the inside, and label the outside with your name, phone number, and your pet’s name. If your pet will travel in cargo, the crate must be hard-sided with a secure door, metal hardware, and ventilation on all four sides. Cargo crates also need “Live Animal” stickers and arrows showing upright orientation — the airline may provide those at check-in.

Helping Your Pet Get Comfortable with the Carrier

Introduce the carrier at least a week before travel. Leave it open in a familiar room with treats, blankets, and a favorite toy inside. Let your dog or cat explore on their own terms, and feed a few meals near or inside the carrier to build positive associations. Gradually zip the door for short periods while you’re home, then step out briefly. On travel day, spray a light mist of a synthetic calming pheromone on the bedding — not directly on your pet — and avoid washing the blanket right before the trip; a familiar scent is grounding. For cats, a small piece of your unwashed T-shirt tucked inside can work wonders. Never force a fearful animal into the carrier; instead, work with a veterinarian or behaviorist to address anxiety well in advance.

What to Expect at Green Bay Austin Straubel International Airport (GRB)

GRB’s compact layout works in your favor when traveling with a pet. Short lines at the ticket counter and security mean less waiting and fewer stimuli that can agitate an already nervous animal. Before security, you’ll find pet relief areas with artificial turf, waste bags, and disposal bins — take advantage of these just before check-in so your dog has a chance to empty their bladder. The Green Bay Austin Straubel International Airport pet relief area is clearly marked and well-maintained, though it’s outdoors-adjacent in a covered space, so dress for Wisconsin weather. For cats or small pets that won’t use a relief area, bring a portable litter tray or absorbent pads and find a quiet family restroom for a quick clean-up.

Check-In and Security Screening

At the airline check-in desk, the agent will verify your pet reservation, weight the carrier, and inspect the health certificate if required. You’ll pay the pet fee at this point if it hasn’t been collected earlier. At the TSA checkpoint, you must remove the pet from the carrier and send the empty carrier through the X-ray machine. Hold your pet securely in your arms or on a leash as you walk through the metal detector. If your dog or cat is skittish, request a private screening room so you can place the pet back into the carrier in a quiet, enclosed environment. Keep a snug harness or collar with identification on at all times; if your pet startles and slips from your arms, updated ID tags are your best chance of a quick reunion.

In-Flight Strategies for a Calm Journey

Once you’re settled in your seat, slide the carrier completely under the seat in front of you, with the mesh door oriented so you can see your pet. Avoid opening the carrier during the flight — a sudden escape in a pressurized cabin is dangerous for both your animal and other passengers. Instead, offer quiet reassurance by speaking softly or resting your hand near the carrier. Keep the air vents open but not blasting directly onto the carrier, and monitor your pet’s breathing periodically.

Managing Anxiety Without Sedation

Many veterinarians strongly advise against sedating pets for air travel unless there is a specific medical need. Tranquilizers can depress respiration and interfere with an animal’s ability to regulate body temperature, especially in the reduced oxygen environment of a high-altitude cabin. Instead, work with your vet on natural calming aids such as veterinarian-formulated probiotics, pheromone sprays, or a Thundershirt. If your pet is particularly noise-sensitive, a pair of specially designed dog ear muffs can dull engine roar. The most effective tool, however, is your own demeanor; pets read tension incredibly well. Stay calm, breathe slowly, and resist the urge to fuss.

Feeding and Hydration Timing

Offer a light meal about four hours before departure, then remove food to prevent an upset stomach. Water should be available until just before you leave for the airport, and a small amount can be provided in the carrier’s clip-on bowl during the flight. Freeze the water dish partially so it melts over time rather than spilling during boarding. Avoid feeding treats that your pet has never tried before; the last place to discover a food sensitivity is at cruising altitude.

What to Do During a Layover

Direct flights are always the best choice, but if you must connect, plan for at least a 90-minute layover to visit a pet relief area post-security. Many hub airports now offer indoor pet relief rooms near gates; search your connecting airport’s map ahead of time. Keep your pet inside the carrier as you navigate the concourse — moving walkways, rolling suitcases, and crowds can be overwhelming. Find a quiet corner away from foot traffic, place the carrier against a wall, and let your pet relax without visual overstimulation. Never leave a pet unattended in a terminal or in a carrier on a seat, even for a quick restroom break.

When Cargo Travel Is the Only Option

For large dogs and some cats that exceed cabin weight limits, cargo travel is the only way to fly. This option demands an IATA-compliant hard crate, extra paperwork, and awareness of the physical toll on your pet. Airlines pressurize and ventilate the cargo hold, but ambient noise is louder and temperatures can fluctuate during loading and unloading. Choose flights during moderate weather; many carriers will not accept animals in cargo when the ground temperature at any point on the route is forecasted to fall below 20°F or exceed 85°F. That means a winter trip out of Green Bay may preclude cargo travel unless you can book a midday departure and a southern route. Some airlines, like United with PetSafe, offer specialized handling and tracking, including a vehicle that moves crates across the ramp in climate-controlled conditions. Regardless of the program, clearly label the crate with “Live Animal,” your contact information, and a photo of your pet attached to the outside. Place a frozen water bowl in the crate door and secure absorbent bedding. Arrive early for check-in so ground staff have ample time to process and load your animal calmly.

Special Considerations for Brachycephalic Breeds and Exotic Pets

Flat-faced breeds like Bulldogs, Pugs, Persian cats, and Boston Terriers face elevated risks during air travel because their compressed airways handle heat exchange and oxygen uptake less efficiently. Many airlines, including Delta and Alaska, prohibit these breeds from cargo but allow them in the cabin if size permits. Always disclose the breed honestly during booking; misrepresenting your pet can result in denied boarding. For exotic pets — rabbits, hamsters, guinea pigs, small birds — policies vary widely. Alaska accepts many small household pets in the cabin, while others may only allow dogs and cats. Ferrets, hedgehogs, and reptiles often fall into a gray area; call the airline’s animal desk directly rather than relying on the website summary. If your pet is not a dog or cat, request a written email confirmation of the acceptance before you pay for the ticket.

Final Checklist for Flying with Pets from Green Bay

As the departure date approaches, a simple checklist can keep you on track:

  • Veterinary visit: Schedule the health certificate appointment within 10 days of travel. Verify all vaccinations and ask about anti-anxiety supports if needed.
  • Carrier purchase and test: Buy the carrier early and begin acclimation. Confirm measurements against your airline’s published limits for the exact aircraft.
  • Booking confirmation: Add your pet to the reservation at the time of booking, not later. Call the airline to ensure the pet slot is recorded and the fee paid.
  • Identification: Update microchip registration and add a collar tag with your cell phone number. Include a temporary travel tag with the destination address.
  • Packing: Pack a small go-bag with extra absorbent pads, a leash, collapsible water bowl, sanitizing wipes, and a copy of all health documents.
  • Airport routine: Visit the pet relief area before check-in. Arrive at least two hours early, but not so early that your pet is confined in the carrier unnecessarily.
  • In-flight monitoring: Keep the carrier upright and stowed, avoid opening it, and use a calm voice to reassure your pet.

When you invest effort in selecting the right airline, preparing your animal early, and planning each segment of the airport and in-cabin experience, you give your pet the best shot at a safe, uneventful flight. Green Bay’s manageable airport already removes much of the travel chaos; the rest is in your hands. Compare policies, confirm details in writing, and prioritize your pet’s well-being over cost or convenience, and you’ll land at your destination with a relaxed companion — not a rattled one.