Must I contact the airline before a Canada APPR complaint?

Yes, the official process normally starts with a written airline claim. Keep the airline's reply or the record of no response before using the CTA complaint channel.

What to check

Keep the first claim, case number, airline reply, and any new evidence together. That makes it easier to ask a focused follow-up question or use the right complaint channel.

What to do next

Use the appeal guide to answer the airline’s actual reason, not just repeat the original request.

Official sources

• Canadian Transportation Agency: Flight delays and cancellations: rebooking, refunds and compensation
• Canadian Transportation Agency: Air travel complaints