In-cabin pet carriers that fit Southern Airways Express
Southern Airways Express publishes no under-seat size limit, so no carrier can be checked against one. The sizes below are each carrier's own published dimensions — confirm with Southern Airways Express before you fly.
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| Carrier | Size | Fit | Buy |
|---|---|---|---|
 Sherpa Original Deluxe (Small) up to ~8 lb · max pet 13″ long × 7.5″ tall Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. · collapsible/flex | 15 × 10 × 8.5 in | Size not published | See on Amazon → |
Mr. Peanut's Gold Series Mini (Low-Profile) up to ~15 lb · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. · collapsible/flex | 17 × 11 × 9 in | Size not published | Not available on Amazon right now |
Mr. Peanut's Gold Series Standard (Expandable) up to ~20 lb · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. · collapsible/flex | 18 × 11 × 10 in | Size not published | Not available on Amazon right nowIn stock and fits the same airlines: Petmate Soft-Sided Kennel Cab (Medium) |
Petmate Soft-Sided Kennel Cab (Medium) up to ~10 lb Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. | 17 × 10 × 10 in | Size not published | See on Amazon → |
Sherpa Original Deluxe (Medium) up to ~16 lb · max pet 16″ long × 9.5″ tall · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. · collapsible/flex | 17 × 11 × 10.5 in | Size not published | See on Amazon → |
Sleepypod Air up to ~18 lb · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. · collapsible/flex | 22 × 10.5 × 10.5 in | Size not published | See on Amazon → |
Diggs Passenger pet size not published · Diggs discontinued this carrier — link goes to similar carriers Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. | 17 × 12 × 10.5 in | Size not published | Search Amazon → |
ibiyaya JetPaw Expandable Backpack up to ~17 lb · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. | 18 × 12 × 10.5 in | Size not published | See on Amazon → |
Sleepypod Atom up to ~12 lb · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. | 17 × 8.5 × 10.5 in | Size not published | See on Amazon → |
Away The Pet Carrier pets up to ~18 lb · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. | 18.7 × 10.8 × 10.75 in | Size not published | Search Amazon → |
Petsfit (Medium) Expandable Soft-Sided up to ~13 lb · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. | 17 × 11 × 11 in | Size not published | See on Amazon → |
Bergan Comfort Carrier (Small) pet size not published Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. | 16 × 8 × 11 in | Size not published | See on Amazon → |
Frisco Premium Airline-Compliant Carrier up to ~22 lb · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. | 18 × 11 × 11 in | Size not published | Search Amazon → |
Sherpa Original Deluxe (Large) up to ~22 lb · max pet 18″ long × 10.5″ tall · over Southern Airways Express's 15 lb limit once the bag is counted Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. · collapsible/flex | 19 × 11.75 × 11.5 in | Size not published | See on Amazon → |
SturdiBag Pro (Large, Flexible Height) pet size not published Southern Airways Express does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Southern Airways Express before you book. · collapsible/flex | 18 × 11.5 × 11.5 in | Size not published | Not available on Amazon right nowIn stock and fits the same airlines: Petmate Soft-Sided Kennel Cab (Medium) |
Every fit is against the published maximum; real under-seat space varies by aircraft (why). Full rules & fees: Southern Airways Express pet policy → · how Southern Airways Express ranks on fee and space →
Citing this policy data? Go ahead — sourced from the official airline page, last verified 2026-10-10. Copy a ready-made reference:
Other airlines: Southwest Airlines · Sun Country Airlines · Swiss International Air Lines · TAP Air Portugal · Transavia · Turkish Airlines
Common questions
What size pet carrier does Southern Airways Express allow in the cabin?
Southern Airways Express publishes no under-seat size limit, so no carrier can be checked against one. Confirm the allowance with Southern Airways Express before you book. Weight limit: 15 lb maximum combined weight of any pet at the passenger's seat; up to two small animals with a combined weight of 25 lbs. or less may share one carrier. Last checked 2026-10-10.
How much does Southern Airways Express charge for a pet in the cabin?
$35 service fee per animal, per direction (up to two small animals with a combined weight of 25 lbs. or less in the same carrier). Confirm the current fee with Southern Airways Express when you book.