In-cabin pet carriers that fit Swiss International Air Lines
The carriers from our list that clear Swiss International Air Lines' official 21.7 × 15.7 × 9.1 in under-seat limit — sorted best-fit first, with the ones that squeeze in when collapsed flagged.
Short answer: 6 of the 15 carriers we track fit Swiss International Air Lines' 21.7 × 15.7 × 9.1 in limit: 2 with room to spare on every side and 4 only when collapsed or squeezed a little. 9 are too big.
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| Carrier | Size | Fit | Buy |
|---|---|---|---|
 Sherpa Original Deluxe (Small) up to ~8 lb · max pet 13″ long × 7.5″ tall 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. · collapsible/flex | 15 × 10 × 8.5 in | Fits | See on Amazon → |
Mr. Peanut's Gold Series Mini (Low-Profile) up to ~15 lb · over Swiss International Air Lines's 17.6 lb limit once the bag is counted 17 × 11 × 9 in is within 21.7 × 15.7 × 9.1 in — 4.7" spare on length, 4.7" on width, 0.1" on height. Tightest margin is 0.1", so measure before you fly. · collapsible/flex | 17 × 11 × 9 in | Fits | Not available on Amazon right now |
Mr. Peanut's Gold Series Standard (Expandable) up to ~20 lb · over Swiss International Air Lines's 17.6 lb limit once the bag is counted 10" tall vs a 9.1" limit — 0.9" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. · collapsible/flex | 18 × 11 × 10 in | Flexes — 0.9" over | Not available on Amazon right nowIn stock and fits the same airlines: Petmate Soft-Sided Kennel Cab (Medium) |
Sherpa Original Deluxe (Medium) up to ~16 lb · max pet 16″ long × 9.5″ tall · over Swiss International Air Lines's 17.6 lb limit once the bag is counted 10.5" tall vs a 9.1" limit — 1.4" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. · collapsible/flex | 17 × 11 × 10.5 in | Flexes — 1.4" over | See on Amazon → |
Sherpa Original Deluxe (Large) up to ~22 lb · max pet 18″ long × 10.5″ tall · over Swiss International Air Lines's 17.6 lb limit once the bag is counted 11.5" tall vs a 9.1" limit — 2.4" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. · collapsible/flex | 19 × 11.75 × 11.5 in | Flexes — 2.4" over | See on Amazon → |
SturdiBag Pro (Large, Flexible Height) pet size not published 11.5" tall vs a 9.1" limit — 2.4" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. · collapsible/flex | 18 × 11.5 × 11.5 in | Flexes — 2.4" over | 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: Swiss International Air Lines pet policy → · how Swiss International Air Lines ranks on fee and space →
Other airlines: TAP Air Portugal · Transavia · Turkish Airlines · United Airlines · Viva Aerobus · Volaris
Common questions
What size pet carrier does Swiss International Air Lines allow in the cabin?
Swiss International Air Lines' published limit for a carrier under the seat in front of you is 21.7 × 15.7 × 9.1 in. The carrier must be soft-sided. Weight limit: 8 kg (17.6 lb) including the transport container. We last checked this against Swiss International Air Lines' own pet policy on 2026-08-25.
How many pet carriers fit Swiss International Air Lines' limit?
6 of the 15 carriers we track fit Swiss International Air Lines' 21.7 × 15.7 × 9.1 in limit: 2 with room to spare on every side and 4 only when collapsed or squeezed a little. 9 are too big.
Which carriers only fit Swiss International Air Lines when collapsed or squeezed?
Mr. Peanut's Gold Series Standard (Expandable), Sherpa Original Deluxe (Medium), Sherpa Original Deluxe (Large), SturdiBag Pro (Large, Flexible Height). Each is over the published size until folded or pressed down, so measure yours and expect it may be checked at the gate.
Which carriers are too big for Swiss International Air Lines?
Petmate Soft-Sided Kennel Cab (Medium), Diggs Passenger, ibiyaya JetPaw Expandable Backpack, Sleepypod Atom, Away The Pet Carrier, Petsfit (Medium) Expandable Soft-Sided, Bergan Comfort Carrier (Small), Frisco Premium Airline-Compliant Carrier, Sleepypod Air. Each is over the 21.7 × 15.7 × 9.1 in limit.
How much does Swiss International Air Lines charge for a pet in the cabin?
Route-dependent, charged as excess baggage. SWISS's filed tariff (Rule 116, PETC max 8 kg) lists CHF/USD 60 / EUR 50 / CAD 75 domestic; CHF/USD 70 / EUR 60 / CAD 90 within Europe or within third countries, rising by band to long-intercontinental. SWISS's current pets page separately quotes EUR 150 / CHF 170 / USD 170 / CAD 220 per animal when travelling via FRA, MUC, VIE, ZRH or GVA — confirm the applicable figure at booking.
How many pets does Swiss International Air Lines allow in the cabin?
"Per person maximum of 1 pet box is permitted" (filed SWISS tariff); SWISS's pets page states each passenger may take a maximum of two animals in an approved container. Confirm the current limit with Swiss International Air Lines when you book.
How do I book a pet in the cabin on Swiss International Air Lines?
Request carriage with SWISS, which checks availability and makes the booking for you (pets accepted from 12 weeks of age). Last checked 2026-08-25.