Flying with a pet can feel overwhelming, but when you choose the right airline and prepare ahead of time, the journey becomes much smoother. For residents of Allentown, Pennsylvania, the Lehigh Valley International Airport (ABE) serves as a convenient starting point with connections to major hubs that open up a wide range of pet-friendly flight options. While not every airline operating out of ABE allows pets in the cabin, several top carriers have clear, structured rules that let your furry companion travel safely either under the seat in front of you or through specialized cargo programs. Understanding each airline's specific requirements for carrier size, health documentation, and breed restrictions will help you avoid last-minute surprises and ensure a comfortable flight for both you and your pet.

This guide digs into the best airline choices for pet owners departing from the Lehigh Valley, covering everything from in-cabin policies to connecting route strategies and practical travel tips. You’ll find actionable advice on preparing your pet, navigating airport services, and selecting the most pet-accommodating travel path to your destination.

Top Pet-Friendly Airlines for Travelers Departing from Allentown

While ABE has a limited number of nonstop routes, several airlines operating from this regional airport offer robust pet travel programs. The key is to understand which airlines accept pets in the cabin, what their fees look like, and how to handle connections through larger airports if you’re flying with a carrier that doesn’t offer direct service from Allentown. Keep in mind that airlines may update their policies periodically, so always verify before booking.

American Airlines

American Airlines permits small cats and dogs to travel in the cabin on most domestic flights, provided the carrier fits under the seat in front of you. The pet fee is $125 each way. Carriers must be leak-proof, well-ventilated, and stay closed for the entire flight. Pets must be at least eight weeks old and fully weaned. American also accepts larger pets as checked baggage or cargo through its Cargo program, though breed restrictions apply – brachycephalic (snub-nosed) dogs and cats such as Bulldogs, Pugs, and Persians are not permitted in cargo. A health certificate issued by a veterinarian within 10 days of travel is required, and advance booking is essential because each flight limits the number of pets in the cabin. For the most current rules, check American Airlines pet policy.

United Airlines

United allows small pets in the cabin for a $125 fee each way. The carrier must remain stowed under the seat throughout the journey. For larger animals, United offers PetSafe, a dedicated cargo service with temperature-controlled vehicles and trained staff. PetSafe has strict requirements for carrier construction, health certificates, and breed restrictions – similar to American, snub-nosed breeds are typically not accepted due to breathing risk. United no longer accepts emotional support animals as free cabin travel; only trained service dogs meeting specific criteria are allowed. Pre-booking for in-cabin pets is highly recommended, and you’ll need a health certificate issued within 10 days of departure for cargo travel. Read the full details on the United Airlines pet travel page.

Delta Air Lines

Delta permits small pets in the cabin on many domestic and international flights, with a fee of $95 one-way within the U.S., Canada, and Puerto Rico. The carrier must fit under the seat and the pet must remain inside at all times. Delta’s cargo program, Delta Cargo, handles larger pets with temperature-controlled and pressurized compartments. Breed restrictions are in place for both cabin and cargo; brachycephalic animals are not accepted as cargo. Delta requires a health certificate issued within 10 days of travel for cargo shipments. In-cabin pets do not always require a certificate, but having one is a smart precaution. Check the latest at Delta pet travel information.

Frontier Airlines

Frontier Airlines accepts only dogs and cats in the cabin on domestic flights; no pets travel in cargo. The pet fee is $99 each way. Carriers must be leak-proof and fit beneath the seat, and only one pet per carrier is allowed. Frontier’s policy is straightforward but limits pets to small breeds that can comfortably stay inside an under-seat carrier. You cannot put your pet in an overhead bin or under a seat in an exit row. Advance booking is critical, and the airline requires that you check in at the airport counter, not online or via mobile, when traveling with a pet. Find updates at Frontier Airlines pet policy.

Alaska Airlines

Alaska Airlines consistently earns high marks for pet-friendly travel. In-cabin pets are welcome for a $100 fee one-way. Carriers must meet under-seat dimensions, and pets must stay inside during the flight. Alaska also accepts pets as cargo for larger or restricted breeds, but temperature embargoes apply during extreme heat or cold. The airline has a detailed breed restriction list, and health certificates are mandatory for cargo travel and recommended for cabin travel. Because Alaska Airlines does not operate directly from ABE, you would connect through a hub like Seattle or Portland. Still, planning a route with Alaska can offer a superior experience if your itinerary aligns. Refer to Alaska Airlines pet travel for official information.

Allegiant Air

Allegiant Air serves ABE with nonstop flights to several Florida destinations. The airline allows small pets in the cabin for a $50 fee per segment, making it one of the more affordable options. Pets must remain in a carrier under the seat, and the carrier counts as one personal item. Allegiant does not offer cargo pet travel, so large pets cannot fly. Reservations for pets should be made early as space is limited. Visit the Allegiant Air pet page for current rules.

Comparing Airline Pet Policies at a Glance

Because policies differ, a side-by-side comparison helps you quickly see which airline fits your pet’s size, breed, and your travel needs. Below is a summary of popular carriers accessible from the Allentown area (some may require a connection).

Airline Cabin Pet Fee (One-Way) Cargo Option Breed Restrictions for Cargo Health Certificate Advance Booking
American Airlines $125 Yes Yes (snub-nosed) Required within 10 days Yes
United Airlines $125 Yes (PetSafe) Yes (snub-nosed) Required for cargo Yes
Delta Air Lines $95 Yes (Delta Cargo) Yes (snub-nosed) Required for cargo Yes
Frontier Airlines $99 No N/A Not always required Yes
Alaska Airlines $100 Yes Yes (snub-nosed) Recommended/mandatory Yes
Allegiant Air $50 No N/A Not required Yes

Always double-check directly with the airline before booking; fee changes and policy updates occur frequently. For international travel, consult the USDA APHIS pet travel guidelines well in advance as additional vaccinations, testing, and paperwork may be necessary.

Route Connectivity and Pet-Friendly Airports from the Lehigh Valley

Allentown's Lehigh Valley International Airport (ABE) offers direct flights to several pet-friendly cities, but for broader reach you’ll likely connect through a larger hub. Understanding these hubs and which airports prioritize pet amenities can help you plan a stress-free itinerary.

Nonstop Destinations from ABE

Allegiant Air flies nonstop from ABE to Orlando/Sanford, Punta Gorda/Fort Myers, and St. Pete/Clearwater – all popular warm-weather spots with pet-friendly beaches and accommodations. American Airlines operates daily flights to Charlotte Douglas International Airport (CLT), a major East Coast hub. Delta connects ABE to Hartsfield-Jackson Atlanta International Airport (ATL), the busiest airport in the world, opening countless domestic and international connections. United flies to Chicago O’Hare (ORD) multiple times per day. These direct hops let you reach a major airline hub in under two hours, making it easier to plan a connecting itinerary with your pet in the cabin.

Connecting Through Major Hubs

When you need to fly farther, connecting hubs become part of your journey. Airports like Chicago O’Hare, Newark Liberty International, Houston Bush Intercontinental, and Denver International all feature designated pet relief areas post-security, making layovers more manageable. Newark, for instance, has an indoor pet relief room in Terminal C and several outdoor areas. Chicago O’Hare provides multiple indoor relief stations. As you route through these airports, verify that your layover duration allows enough time for your pet to use a relief area, but be mindful that you cannot take your pet out of the carrier except in designated zones. A solid rule of thumb is a minimum 90-minute layover for domestic connections to avoid rushing and to give your pet a short reprieve.

Regional Connections for Lehigh Valley Travelers

If you’re willing to drive a bit, Philadelphia International Airport (PHL) offers a huge selection of pet-friendly flights. Philadelphia has several pet relief areas, including indoor facilities in Terminals D and F. Newark Liberty is about an hour and a half east and provides robust flight options across many airlines. Both airports allow you to bypass the smaller regional constraints of ABE while still keeping your journey relatively straightforward. Using PHL or Newark you can book a direct, long-haul flight with your pet in the cabin on carriers like American, United, or Delta.

Essential Preparations for Flying with Your Pet

Preparation makes the difference between a chaotic travel day and a calm one. Weeks before your departure, focus on carrier training, veterinary visits, and ensuring the airline’s requirements are fully met.

Carrier Training and Sizing

The carrier must be large enough for your pet to stand, sit, turn around, and lie down in a natural position. Soft-sided carriers often work best for under-seat storage because they can compress slightly. Measure the maximum under-seat dimensions on your specific aircraft type before purchasing. Once you have the carrier, leave it open in your home with treats, toys, and a familiar blanket so your pet associates it with positive experiences. Gradually increase time spent inside, eventually zipping it closed for short periods. This acclimation reduces anxiety on travel day.

Veterinary Check, Vaccinations, and Health Certificates

A pre-flight veterinary exam ensures your pet is healthy enough to fly. Obtain a health certificate within 10 days of departure if required, but even when not mandatory, having one demonstrates your pet’s fitness and up-to-date vaccinations. Your veterinarian can advise on calming aids, but never use sedatives without explicit approval – altitude and pressure changes can amplify side effects. Ensure your pet is microchipped and the registration is current, and attach a temporary ID tag to the carrier with your contact information at your destination.

Feeding and Hydration Schedule

Feed your pet a light meal about four hours before departure to reduce the risk of motion sickness. Provide small amounts of water close to flight time, but don’t overfill the water dish. Attach a clip-on water bottle to the outside of the carrier if allowed, so you can offer water during layovers. Inside the carrier, a frozen small dish of water can slowly melt and provide hydration without spilling during the early part of the trip.

ABE is a relatively small, easy-to-navigate airport, which benefits pet owners. Still, you need to understand TSA screening and check-in steps.

Airport Check-In for Traveling Pets

Almost every airline requires that you check in at the ticket counter when flying with a pet in the cabin. Arrive at least two hours before your flight to allow time for paperwork verification and pet fee payment. The agent will inspect the carrier and sometimes weight the pet (with carrier). Once checked in, you head to security like all passengers, but with an animal.

TSA Screening Process

When you reach the security checkpoint, remove the pet from the carrier. Place the empty carrier on the conveyor belt through the X-ray machine. Hold your pet or walk them on a leash through the metal detector with you. If your pet is too skittish, you can request a private screening room. Never put your pet through the X-ray machine. The TSA recommends harnesses without metal to avoid setting off the detector. More tips are available on the TSA traveling with pets page.

Pet Relief Areas at ABE and Connecting Hubs

At ABE, an outdoor pet relief area is located just outside the terminal. Since the airport is small, you can quickly take your pet out before passing through security, and then again after landing. In larger connecting airports, locate the relief area map online in advance. Some airports provide indoor, artificial-turf relief rooms complete with clean-up supplies. Use these facilities during layovers, but always keep your pet on a leash and inside the carrier when moving through the terminal.

Weather Considerations and Seasonal Limitations

Airlines enforce temperature embargoes for pets traveling as cargo, and even in-cabin transport can be stressful during extreme conditions. If your travel includes a connection in a hot or cold hub, take extra precautions.

  • Summer travel: Ground temperatures on the ramp can exceed 85°F, which is often the cutoff for cargo pets. Fly early morning or late evening to avoid peak heat.
  • Winter travel: Temperatures below 45°F may trigger cold weather embargoes for cargo. For in-cabin pets, dress your short-haired dog or cat in a light sweater and place a blanket inside the carrier.
  • Brachycephalic breeds: Even in-cabin, these flat-faced animals are more susceptible to breathing difficulties in heat. Consider avoiding summer flights entirely or selecting airlines with climate-controlled cargo if they must travel that way.

Check weather forecasts for your departure, connection, and arrival cities. Flexible booking options let you adjust plans if an extreme weather event could compromise your pet’s safety.

Expert Advice and Additional Resources

Planning a pet-friendly trip involves more than just choosing an airline. Here are go-to resources and tips from pet travel specialists:

  • International travel: The USDA APHIS pet travel website provides country-specific requirements, including rabies titers, quarantine rules, and import permits.
  • Pet behavior help: Consult with a certified animal behaviorist or your veterinarian if your pet shows severe anxiety. Desensitization to the carrier and travel sounds can be trained over several weeks.
  • Travel health insurance: Some pet insurance policies cover emergency veterinary care while traveling. Check with your provider or consider short-term travel insurance for your pet.
  • Pet-friendly lodging: Websites like BringFido and GoPetFriendly list thousands of hotels, restaurants, and parks that welcome pets, making destination planning easier.

Finally, keep a travel kit for your pet: include a collapsible water bowl, waste bags, a small supply of food, a recent photo of your pet, vaccination records, and any necessary medications. Having everything in one bag saves time and stress.

Frequently Asked Questions

Can my large dog fly in the cabin from Allentown?

Generally, no. Airlines only permit small pets that can fit in an under-seat carrier inside the cabin. Large dogs must travel as cargo or checked baggage, provided the airline offers that service and the breed is accepted. Contact your carrier directly to confirm.

Do I need a health certificate for in-cabin pet travel?

Policies vary. American and United require a health certificate for cabin pets, while Delta does not always mandate one for domestic in-cabin travel. Even if not required, a health certificate gives you peace of mind and may expedite check-in.

What happens if my flight is delayed or cancelled when my pet is in cargo?

Airlines with pet cargo programs have monitoring protocols. PetSafe and similar services track temperature and provide care during delays. Always notify ground staff and ask for updates. For in-cabin pets, treat delays like you would with any carry-on: stay near your pet and keep them calm.

Which Lehigh Valley airport is best for pet travel?

Lehigh Valley International Airport (ABE) is the most convenient. Its small size reduces stress, and parking is easy. For more nonstop pet-friendly routes, consider driving to Philadelphia International or Newark Liberty.

Are emotional support animals still allowed in the cabin?

For most U.S. airlines, emotional support animals are no longer recognized as service animals and must travel as pets, meaning they must fit in a carrier under the seat and pay the applicable pet fee. Only trained service dogs performing specific tasks are exempt.