In-cabin pet carriers that fit WestJet
The carriers from our list that clear WestJet's official 16 × 10 × 8.5 in under-seat limit — sorted best-fit first, with the ones that squeeze in when collapsed flagged.
📏 8.5" is one of the shortest published height limits we track. Most standard 11"-tall carriers will not fit — look for collapsible or flexible-height models.
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| Carrier | Size | Fit | Buy |
|---|---|---|---|
 Sherpa Original Deluxe (Small) 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. · collapsible/flex | 15 × 10 × 8.5 in | Fits | See on Amazon → |
Every fit is against the published maximum; real under-seat space varies by aircraft (why). Full rules & fees: WestJet pet policy →
Citing this policy data? Go ahead — sourced from the official airline page, last verified 2026-08-10. Copy a ready-made reference:
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