In-cabin pet carriers that fit Sun Country Airlines
The carriers from our list that clear Sun Country Airlines's official 17 × 12 × 9 in under-seat limit — sorted best-fit first, with the ones that squeeze in when collapsed flagged.
📏 Height limit is only 9" — one of the tightest. Many standard 11"-tall carriers won't fit; choose a low-profile or flexible-height carrier. Sun Country notes the middle seat has the most under-seat space.
| Carrier | Size | Fit | Buy |
|---|---|---|---|
| Sherpa Original Deluxe (Small) 15 × 10 × 8.5 in is within 17 × 12 × 9 in. · collapsible/flex | 15 × 10 × 8.5 in | Fits | See on Amazon → |
| Mr. Peanut's Gold Series Mini (Low-Profile) 9.8" tall vs a 9" limit, but the flexible-height top compresses down. Verify it squeezes under your actual seat. · collapsible/flex | 16 × 10.5 × 9.8 in | Flexes — check height | See on Amazon → |
| Sherpa Original Deluxe (Medium) 10.5" tall vs a 9" limit, but the flexible-height top compresses down. Verify it squeezes under your actual seat. · collapsible/flex | 17 × 11 × 10.5 in | Flexes — check height | See on Amazon → |
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Every fit is against the published maximum; real under-seat space varies by aircraft (why). Full rules & fees: Sun Country Airlines pet policy →
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