It’s typically best to fly out from St. Louis to Sudbury, Ontario at noon. Doing so could potentially save you 31% on the flight price compared to flying in the morning, which is usually more expensive.
Wednesday flights are generally found to be more expensive for flights from St. Louis to Sudbury, Ontario. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sudbury, Ontario.