Sherpa Original Deluxe (Small) — dimensions & which airlines it fits
Sherpa Original Deluxe (Small): 15 × 10 × 8.5 in external, up to ~8 lb. Naturally short (8.5") and soft — one of the few that already clears the 8.5" airlines (Southwest, JetBlue). Part of Sherpa's Guaranteed On Board® program.
Affiliate link — we may earn a small commission at no extra cost to you.
✈️ Flying soon? Amazon Prime's free 30-day trial includes free fast delivery, so a carrier ordered today can arrive well before you fly. Start the free 30-day trial →
Affiliate link — we may earn a commission on qualifying sign-ups, at no extra cost to you. Current terms are on Amazon's page.
Specs
| External size (L×W×H) | 15 × 10 × 8.5 in |
| Type | soft-sided · flexible height |
| Pet weight | up to ~8 lb |
Dimensions from the manufacturer product page · verified 2026-07-23
Affiliate link — we may earn a small commission at no extra cost to you. It never changes our specs or which carriers we list.
Which airlines does the Sherpa Original Deluxe (Small) fit?
Compared against each airline's published under-seat limit (height strict; footprint may rotate). Green = within the published size; amber = fits only when collapsed / flexed; grey = over.
| Airline | Its limit | This carrier |
|---|---|---|
| Air France | 18.1 × 11 × 9.4 in | Fits 15 × 10 × 8.5 in is within 18.1 × 11 × 9.4 in — 3.1" spare on length, 1" on width, 0.9" on height. |
| Alaska Airlines | 17 × 11 × 9.5 in | Fits 15 × 10 × 8.5 in is within 17 × 11 × 9.5 in — 2" spare on length, 1" on width, 1" on height. |
| Allegiant Air | 18 × 12 × 11 in | Fits 15 × 10 × 8.5 in is within 18 × 12 × 11 in — 3" spare on length, 2" on width, 2.5" on height. |
| American Airlines | 18 × 11 × 11 in | Fits 15 × 10 × 8.5 in is within 18 × 11 × 11 in — 3" spare on length, 1" on width, 2.5" on height. |
| Austrian Airlines | 21.7 × 15.7 × 9.1 in | Fits 15 × 10 × 8.5 in is within 21.7 × 15.7 × 9.1 in — 6.7" spare on length, 5.7" on width, 0.6" on height. |
| Avianca | 22 × 14 × 10 in | Fits 15 × 10 × 8.5 in is within 22 × 14 × 10 in — 7" spare on length, 4" on width, 1.5" on height. |
| Brussels Airlines | 21.7 × 15.7 × 9.1 in | Fits 15 × 10 × 8.5 in is within 21.7 × 15.7 × 9.1 in — 6.7" spare on length, 5.7" on width, 0.6" on height. |
| Cape Air | 17 × 12.5 × 8.5 in | Fits 15 × 10 × 8.5 in is within 17 × 12.5 × 8.5 in — 2" spare on length, 2.5" on width, 0" on height. Tightest margin is 0", so measure before you fly. |
| Contour Airlines | 24 × 16 × 10 in | Fits 15 × 10 × 8.5 in is within 24 × 16 × 10 in — 9" spare on length, 6" on width, 1.5" on height. |
| Delta Air Lines | 18 × 11 × 11 in | Fits 15 × 10 × 8.5 in is within 18 × 11 × 11 in — 3" spare on length, 1" on width, 2.5" on height. |
| Etihad Airways | 15.7 × 15.7 × 8.7 in | Fits 15 × 10 × 8.5 in is within 15.7 × 15.7 × 8.7 in — 0.7" spare on length, 5.7" on width, 0.2" on height. Tightest margin is 0.2", so measure before you fly. |
| Frontier Airlines | 18 × 14 × 11 in | Fits 15 × 10 × 8.5 in is within 18 × 14 × 11 in — 3" spare on length, 4" on width, 2.5" on height. |
| GOL Linhas Aéreas | 16.9 × 12.6 × 8.7 in | Fits 15 × 10 × 8.5 in is within 16.9 × 12.6 × 8.7 in — 1.9" spare on length, 2.6" on width, 0.2" on height. Tightest margin is 0.2", so measure before you fly. |
| Hawaiian Airlines | 17 × 11 × 9.5 in | Fits 15 × 10 × 8.5 in is within 17 × 11 × 9.5 in — 2" spare on length, 1" on width, 1" on height. |
| Iberia | 17.7 × 13.8 × 9.8 in | Fits 15 × 10 × 8.5 in is within 17.7 × 13.8 × 9.8 in — 2.7" spare on length, 3.8" on width, 1.3" on height. |
| ITA Airways | 21.7 × 15.7 × 9.1 in | Fits 15 × 10 × 8.5 in is within 21.7 × 15.7 × 9.1 in — 6.7" spare on length, 5.7" on width, 0.6" on height. |
| JetBlue | 17 × 12.5 × 8.5 in | Fits 15 × 10 × 8.5 in is within 17 × 12.5 × 8.5 in — 2" spare on length, 2.5" on width, 0" on height. Tightest margin is 0", so measure before you fly. |
| JSX | 17 × 13 × 11 in | Fits 15 × 10 × 8.5 in is within 17 × 13 × 11 in — 2" spare on length, 3" on width, 2.5" on height. |
| KLM Royal Dutch Airlines | 18.1 × 11 × 9.4 in | Fits 15 × 10 × 8.5 in is within 18.1 × 11 × 9.4 in — 3.1" spare on length, 1" on width, 0.9" on height. |
| Lufthansa | 21.7 × 15.7 × 9.1 in | Fits 15 × 10 × 8.5 in is within 21.7 × 15.7 × 9.1 in — 6.7" spare on length, 5.7" on width, 0.6" on height. |
| Porter Airlines | 21.5 × 15.5 × 10.5 in | Fits 15 × 10 × 8.5 in is within 21.5 × 15.5 × 10.5 in — 6.5" spare on length, 5.5" on width, 2" on height. |
| Southwest Airlines | 18.5 × 13.5 × 8.5 in | Fits 15 × 10 × 8.5 in is within 18.5 × 13.5 × 8.5 in — 3.5" spare on length, 3.5" on width, 0" on height. Tightest margin is 0", so measure before you fly. |
| Sun Country Airlines | 17 × 12 × 9 in | Fits 15 × 10 × 8.5 in is within 17 × 12 × 9 in — 2" spare on length, 2" on width, 0.5" on height. Tightest margin is 0.5", so measure before you fly. |
| Swiss International Air Lines | 21.7 × 15.7 × 9.1 in | Fits 15 × 10 × 8.5 in is within 21.7 × 15.7 × 9.1 in — 6.7" spare on length, 5.7" on width, 0.6" on height. |
| TAP Air Portugal | 17.7 × 11.8 × 9 in | Fits 15 × 10 × 8.5 in is within 17.7 × 11.8 × 9 in — 2.7" spare on length, 1.8" on width, 0.5" on height. Tightest margin is 0.5", so measure before you fly. |
| Turkish Airlines | 15.7 × 11.8 × 9.1 in | Fits 15 × 10 × 8.5 in is within 15.7 × 11.8 × 9.1 in — 0.7" spare on length, 1.8" on width, 0.6" on height. |
| United Airlines | 18 × 11 × 11 in | Fits 15 × 10 × 8.5 in is within 18 × 11 × 11 in — 3" spare on length, 1" on width, 2.5" on height. |
| WestJet | 16 × 10 × 8.5 in | Fits 15 × 10 × 8.5 in is within 16 × 10 × 8.5 in — 1" spare on length, 0" on width, 0" on height. Tightest margin is 0", so measure before you fly. |
| Aegean Airlines | 15.7 × 9.8 × 9.8 in | Squeezes — 0.2" over 15 × 10 × 8.5 in is 0.2" over on width against a 15.7 × 9.8 × 9.8 in limit, and height clears with 1.3" to spare. Soft sides compress, so this usually goes under the seat — but it is over the published figure, so measure yours and be ready for an agent to check. |
| Air Canada | 17 × 16 × 8 in | Flexes — check height 8.5" tall vs a 8" limit — 0.5" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. |
| Air Transat | 17 × 9.5 × 10 in | Squeezes — 0.5" over 15 × 10 × 8.5 in is 0.5" over on width against a 17 × 9.5 × 10 in limit, and height clears with 1.5" to spare. Soft sides compress, so this usually goes under the seat — but it is over the published figure, so measure yours and be ready for an agent to check. |
| American Eagle (regional, incl. Republic Airways) | 16 × 12 × 8 in | Flexes — check height 8.5" tall vs a 8" limit — 0.5" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. |
| Korean Air | 17.5 × 12.5 × 7.5 in | Flexes — check height 8.5" tall vs a 7.5" limit — 1" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. |
| Norwegian | 16.9 × 12.2 × 7.9 in | Flexes — check height 8.5" tall vs a 7.9" limit — 0.6" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. |
| Royal Air Maroc | 21.7 × 15.7 × 7.9 in | Flexes — check height 8.5" tall vs a 7.9" limit — 0.6" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. |
| SAS Scandinavian Airlines | 15.7 × 9.8 × 9.1 in | Squeezes — 0.2" over 15 × 10 × 8.5 in is 0.2" over on width against a 15.7 × 9.8 × 9.1 in limit, and height clears with 0.6" to spare. Soft sides compress, so this usually goes under the seat — but it is over the published figure, so measure yours and be ready for an agent to check. |
| Volaris | 17.3 × 11.8 × 7.5 in | Flexes — check height 8.5" tall vs a 7.5" limit — 1" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. |
| Vueling | 17.7 × 15.4 × 8.3 in | Flexes — check height 8.5" tall vs a 8.3" limit — 0.2" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. |
| Avelo Airlines | 17 × 9 × 13 in | Too big 15 × 10 × 8.5 in is over the 17 × 9 × 13 in limit. |
| Breeze Airways | 17 × 8 × 13 in | Too big 15 × 10 × 8.5 in is over the 17 × 8 × 13 in limit. |
| EL AL Israel Airlines | 13 × 8 × 7 in | Too big 15 × 10 × 8.5 in is over the 13 × 8 × 7 in limit. |
| Finnair | 13.8 × 11.8 × 7.9 in | Too big 15 × 10 × 8.5 in is over the 13.8 × 11.8 × 7.9 in limit. |
| Alaska Horizon (Horizon Air) | not published | Size not published Alaska Horizon (Horizon Air) does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Alaska Horizon (Horizon Air) before you book. |
| Azul Linhas Aéreas | not published | Size not published Azul Linhas Aéreas does not publish a maximum carrier size, so we will not compute a fit. Confirm the under-seat allowance with Azul Linhas Aéreas before you book. |
| Southern Airways Express | not published | 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. |
| Air New Zealand | not published | No cabin pets Air New Zealand does not accept pets in the cabin, so carrier size is not the deciding factor. Check Air New Zealand's own policy for cargo or approved pet-shipper options. |
| ANA (All Nippon Airways) | not published | No cabin pets ANA (All Nippon Airways) does not accept pets in the cabin, so carrier size is not the deciding factor. Check ANA (All Nippon Airways)'s own policy for cargo or approved pet-shipper options. |
| British Airways | not published | No cabin pets British Airways does not accept pets in the cabin, so carrier size is not the deciding factor. Check British Airways's own policy for cargo or approved pet-shipper options. |
| Cathay Pacific | not published | No cabin pets Cathay Pacific does not accept pets in the cabin, so carrier size is not the deciding factor. Check Cathay Pacific's own policy for cargo or approved pet-shipper options. |
| China Airlines | not published | No cabin pets China Airlines does not accept pets in the cabin, so carrier size is not the deciding factor. Check China Airlines's own policy for cargo or approved pet-shipper options. |
| easyJet | not published | No cabin pets easyJet does not accept pets in the cabin, so carrier size is not the deciding factor. Check easyJet's own policy for cargo or approved pet-shipper options. |
| Emirates | not published | No cabin pets Emirates does not accept pets in the cabin, so carrier size is not the deciding factor. Check Emirates's own policy for cargo or approved pet-shipper options. |
| Japan Airlines | not published | No cabin pets Japan Airlines does not accept pets in the cabin, so carrier size is not the deciding factor. Check Japan Airlines's own policy for cargo or approved pet-shipper options. |
| Qantas | not published | No cabin pets Qantas does not accept pets in the cabin, so carrier size is not the deciding factor. Check Qantas's own policy for cargo or approved pet-shipper options. |
| Qatar Airways | not published | No cabin pets Qatar Airways does not accept pets in the cabin, so carrier size is not the deciding factor. Check Qatar Airways's own policy for cargo or approved pet-shipper options. |
| Ryanair | not published | No cabin pets Ryanair does not accept pets in the cabin, so carrier size is not the deciding factor. Check Ryanair's own policy for cargo or approved pet-shipper options. |
| Singapore Airlines | not published | No cabin pets Singapore Airlines does not accept pets in the cabin, so carrier size is not the deciding factor. Check Singapore Airlines's own policy for cargo or approved pet-shipper options. |
| Virgin Atlantic | not published | No cabin pets Virgin Atlantic does not accept pets in the cabin, so carrier size is not the deciding factor. Check Virgin Atlantic's own policy for cargo or approved pet-shipper options. |
⚠️ "Fits" here means it's within the published maximum — the actual space under your seat varies by aircraft. See why →
Compared with
Sherpa Original Deluxe (Small) vs Sherpa Original Deluxe (Medium)
Not sure this is the one? See the best carriers ranked by how many airlines they fit · compare all: carriers · fit for a specific airline: Aegean · Air · Air · Air · Air
Common questions
What are the dimensions of the Sherpa Original Deluxe (Small)?
Its published external size is 15 × 10 × 8.5 in, rated for up to ~8 lb. Source: the manufacturer's product page.
Which airlines does the Sherpa Original Deluxe (Small) fit?
Against published limits it fits Air France, Alaska Airlines, Allegiant Air, American Airlines, Austrian Airlines, Avianca, Brussels Airlines, Cape Air, Contour Airlines, Delta Air Lines, Etihad Airways, Frontier Airlines, GOL Linhas Aéreas, Hawaiian Airlines, Iberia, ITA Airways, JetBlue, JSX, KLM Royal Dutch Airlines, Lufthansa, Porter Airlines, Southwest Airlines, Sun Country Airlines, Swiss International Air Lines, TAP Air Portugal, Turkish Airlines, United Airlines, WestJet, Aegean Airlines, Air Canada, Air Transat, American Eagle (regional, incl. Republic Airways), Korean Air, Norwegian, Royal Air Maroc, SAS Scandinavian Airlines, Volaris, Vueling, Alaska Horizon (Horizon Air), Azul Linhas Aéreas, Southern Airways Express, Air New Zealand, ANA (All Nippon Airways), British Airways, Cathay Pacific, China Airlines, easyJet, Emirates, Japan Airlines, Qantas, Qatar Airways, Ryanair, Singapore Airlines, Virgin Atlantic. Real under-seat space varies by aircraft, so confirm for your flight.