In-cabin pet carriers that fit airBaltic
The carriers from our list that clear airBaltic's 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 airBaltic's 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 airBaltic'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 | See on Amazon → |
Mr. Peanut's Gold Series Standard (Expandable) up to ~20 lb · over airBaltic'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 | See on Amazon → |
Sherpa Original Deluxe (Medium) up to ~16 lb · max pet 16″ long × 9.5″ tall · over airBaltic'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 airBaltic'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 | See on Amazon → |
Every fit is against the published maximum; real under-seat space varies by aircraft (why). Full rules & fees: airBaltic pet policy → · how airBaltic ranks on fee and space →
Other airlines: Alaska Airlines · Alaska Horizon (Horizon Air) · Allegiant Air · American Airlines · American Eagle (regional, incl. Republic Airways) · Asiana Airlines
Common questions
What size pet carrier does airBaltic allow in the cabin?
airBaltic's published limit for a carrier under the seat in front of you is 21.7 × 15.7 × 9.1 in. Weight limit: Max 8 kg (pet + carrier). We last checked this against airBaltic's own pet policy on 2026-10-03.
How many pet carriers fit airBaltic's limit?
6 of the 15 carriers we track fit airBaltic's 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 airBaltic 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 airBaltic?
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.