WestJet

Allowed dimensions: 56x23x36 cm

The context in a few words

Operating out of Sainte-Lucie, WestJet runs a regional network that values consistency over global reach. Carry-on policy stays within a familiar bracket, with neither generous extras nor unusual restrictions.

At 56x23x36 cm, the grid lines up with prevailing IATA references. Most off-the-shelf carry-on cases are compatible out of the box.

One useful benchmark: on WestJet, cabin baggage typically fits the overhead bin of an Airbus A320 or Boeing 737, the most common types on their network. The 56x23x36 cm format matches standard bin dimensions, no more. Even seemingly compatible extended cases are best avoided.

Practical advice: on regional flights, the trick is to travel with an in-between format — large enough for a few days' essentials, compact enough for the smaller bins of regional aircraft.

Frequent-flyer trick on WestJet: use the personal item as a "stealth second carry-on". A compact backpack packed sensibly can carry a meaningful share, provided it respects underseat dimensions. That's often where a zero-fee trip turns into a forced upgrade.

Which bag for WestJet?

Across WestJet's network, what matters is consistency between the case and the published rules. The cases below are sized to clear without dispute.