Travel guide

Airline-approved crates and carriers: what that means

Your airline's rules, not the box, decide.

By SnoutSmart Editorial · Updated October 2026

The short answer

No single body approves pet carriers for all airlines. 'Airline approved' means the maker believes it fits common rules. For the cabin, check your airline's under-seat dimensions and weight limit. For cargo, airlines generally require rigid kennels meeting specific construction rules. Always check with your airline before you fly.

Cabin carriers

  • Measure the carrier against your airline's under-seat size.
  • Soft carriers can squash slightly; hard ones can't.
  • Sleepypod Air is marketed as airline approved for pets up to 18 lb; Sherpa Original Deluxe is a common cabin choice.

Cargo kennels

Before you book

  • Call the airline about pet space; cabin spots are limited.
  • Ask about breed restrictions.
  • Get your dog used to the carrier weeks ahead.
SafetyAsk your vet before flying a dog, especially short-nosed breeds.

Products mentioned

Questions readers ask

Is 'airline approved' a guarantee?
No. Check your airline's own rules.
Can large dogs fly in the cabin?
Usually not; most cabin limits are for small pets in carriers.