What is the Most Significant Carrier rule?
The Most Significant Carrier rule applies to tickets which include flights with airlines other than Brussels Airlines, in accordance with the IATA resolution 302.
As a general rule, the free baggage allowance applies when Brussels Airlines operates the longest or most significant leg of the journey. If the longest or most significant leg of the journey is operated by another airline, its baggage allowance rules may apply on Brussels Airlines flights or on codeshare flights. The applicable free baggage allowance is stated on your e-ticket.
For flights to, from and across the US and Canada: in accordance with the US Department of Transportation's Aviation Consumer Protection law and the decision issued by the Canadian Transport Authority (CTA) which apply to all flights to, from and across the US and Canada, the following baggage conditions apply:
- Consistency of baggage rules: the same free baggage allowance, excess baggage charges and hand baggage regulations are to be applied throughout the journey
- The applicable baggage rules are usually the ones set by the airline listed first on the ticket
- Any airlines listed as first carrier on the ticket can choose to transfer the baggage rules to any other airline included in the itinerary (MSC).