In-cabin pet carriers that fit JetBlue
The carriers from our list that clear JetBlue's official 17 × 12.5 × 8.5 in under-seat limit — sorted best-fit first, with the ones that squeeze in when collapsed flagged.
Short answer: 3 of the 15 carriers we track fit JetBlue's 17 × 12.5 × 8.5 in limit: 1 with no room to spare on at least one side and 2 only when collapsed or squeezed a little. 12 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 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. · collapsible/flex | 15 × 10 × 8.5 in | Exact fit | See on Amazon → |
 Mr. Peanut's Gold Series Mini (Low-Profile) up to ~15 lb 9" tall vs a 8.5" limit — 0.5" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. · collapsible/flex | 17 × 11 × 9 in | Flexes — 0.5" over | See on Amazon → |
Sherpa Original Deluxe (Medium) up to ~16 lb · max pet 16″ long × 9.5″ tall 10.5" tall vs a 8.5" limit — 2" over, but the flexible-height top compresses down. Verify it squeezes under your actual seat. · collapsible/flex | 17 × 11 × 10.5 in | Flexes — 2" over | See on Amazon → |
Every fit is against the published maximum; real under-seat space varies by aircraft (why). Full rules & fees: JetBlue pet policy → · how JetBlue ranks on fee and space →
Other airlines: JSX · KLM Royal Dutch Airlines · Korean Air · LATAM Airlines · LOT Polish Airlines · Lufthansa
Common questions
What size pet carrier does JetBlue allow in the cabin?
JetBlue's published limit for a carrier under the seat in front of you is 17 × 12.5 × 8.5 in. The carrier must be soft-sided. Weight limit: not published. We last checked this against JetBlue's own pet policy on 2026-09-06.
How many pet carriers fit JetBlue's limit?
3 of the 15 carriers we track fit JetBlue's 17 × 12.5 × 8.5 in limit: 1 with no room to spare on at least one side and 2 only when collapsed or squeezed a little. 12 are too big.
Which carriers only fit JetBlue when collapsed or squeezed?
Mr. Peanut's Gold Series Mini (Low-Profile), Sherpa Original Deluxe (Medium). 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 JetBlue?
Petmate Soft-Sided Kennel Cab (Medium), Diggs Passenger, Sleepypod Atom, Petsfit (Medium) Expandable Soft-Sided, Bergan Comfort Carrier (Small), Mr. Peanut's Gold Series Standard (Expandable), Sleepypod Air, ibiyaya JetPaw Expandable Backpack, Away The Pet Carrier, Frisco Premium Airline-Compliant Carrier, Sherpa Original Deluxe (Large), SturdiBag Pro (Large, Flexible Height). Each is over the 17 × 12.5 × 8.5 in limit.
How much does JetBlue charge for a pet in the cabin?
$150 each way (or TrueBlue points). Confirm the current fee with JetBlue when you book.