Kennel Guidelines

The right travel kennel can keep your pet physically and emotionally comfortable throughout their journey. To make sure your pet has a comfortable flight, we have strict kennel requirements designed to keep your pet safe.

Failure to meet all kennel requirements will result in your animal not being able to travel on the designated flight. It will need to be rebooked for a later flight or day, which may result in additional expenses.

Find the Right Kennel Size

It is important you purchase the right size kennel for your animal. Each animal must have enough space to stand, turn about normally while standing, sit erect, and to lie in a natural position.

Rule of thumb: No part of your pet should be taller or longer than the kennel when standing outside the kennel.

Minimum interior container dimensions

  • A. From the tip of the nose to the root of the tail
  • B. From the elbow to the ground
  • C. The width of the dog at the widest point
  • D. From the floor to the tip of the ears or the top of the head, whichever is higher.
A + ½B
C x 2

Common kennel sizes

Kennel Name

Kennel Type

External Dimensions (inches)

External Dimensions (centimeters)

Kennel Weight

Small 100* 21 x 16 x 15 53 x 41 x 38 7 lbs (3 kg)
Medium 200 27 x 20 x 19 69 x 51 x 48 13 lbs (6 kg)
Intermediate 300 33 x 22 x 23 84 x 56 x 58 18 lbs (8 kg)
Large 400 36 x 24 x 26 91 x 61 x 66 24 lbs (11 kg)
Extra Large 500** 40 x 27 x 30 102 x 69 x 76 32 lbs (15 kg)
Giant 700** 48 x 32 x 35 122 x 81 x 89 51 lbs (23 kg)

* Domestic flights only
** ExpediteFS only

Kennel compatibility with our aircraft

Aircraft Type

Max Kennel Size

Max Kennel Height

787-900 (789)
787-800 (788)
777-300 (773)
777-200 (772)
All kennels up to max height 63 inches (160 cms)
737-MAX (7M8)
737-800 (737/738)
400 Kennel Series or smaller 28 inches (71 cms)
321T (32B)
All kennels up to max height 46 inches (117 cms)
ERJ-175 (E75)
ERJ-145 (ER4)
ERJ-140 (ERD)
CRJ-900 (CR9)
CRJ-700 (CR7)
400 Kennel Series or smaller 28 inches (71 cms)

Prohibited flights

Due to heating limitations. we cannot transport warm-blooded animals on any Airbus 319. 320. 321NX, 3215 or 321H aircraft. Acceptable animals that can be transported on the Airbus 319, 320, 321NX, 3215 or 321H include tropical fish, lobsters and other "aquatics."

Aircraft compatibility (PDF) »

Kennel Construction Requirements

See all kennel construction requirements (PDF) »

These kennel types are prohibited

  • Soft sided or cardboard kennels
  • Kennels with only snap closures
  • Kennels made entirely of welded mesh, wire mesh or wicker
  • Knock down, folding and collapsible kennels
  • Kennels with plastic doors
  • Kennels with wheels, unless they are retractable, removable, taped or inoperable
  • Kennels with top opening doors

Your kennel must meet all of these requirements

Escape-proof construction

Kennel must be made from rigid plastic, metal or wood with a metal grated end which can be the door. It also needs to be leakproof and escape-proof.

Let it breathe

Kennel must have adequate ventilation on 3 sides for domestic and 4 sides for international flights. The ventilation openings must be a max of 1" x 1" (dogs) or 3/4" x 3/4" (cats).

Secured with metal bolts or screws

Snap closure kennels will only be accepted when secured with metal nuts, bolts or screws. Black nylon caps are also accepted.

Made of metal

The kennel door must be made of metal. No doors on top of the kennel.

Holes in all four corners of the door frame

After our team performs a visual screening of the pet at drop-off, releasable cable ties will be attached to all four corners of the kennel door frame.

Wheels off

All wheels must be inoperable or removed.

Keep it clean

Kennel must be clean with no offensive odors.

A soft seat for the flight

Place absorbent material like blankets, towels, or beds on the bottom. Hay, wood shavings, and straw are not allowed. Note that bedding can't exceed 3" in height.

Clean, empty dishes

Attach two dishes (food and water) to the inside of the kennel, making sure they're accessible without opening the door. Split dishes are accepted.

Food in case of a delay

A clear one-gallon bag of food taped to the top along with instructions.

We'll tag it with a label

We'll place a "Live Animals" and orientation labels on your kennels during drop-off.

Multiple pets

Keep in mind that two dogs or two cats may share the same kennel if each is less than 20 lbs. and less than six months old. All animals must be at least eight weeks old and weaned in order to travel.



Number Permitted

Dogs and cats 8 weeks to 6 months Up to 2 pets per kennel provided each animal weighs less than 9 kg (20 lbs)
Dogs and cats Over 6 months old 1 pet per kennel
All other animals Varies Varies by species. Email