The light-year is a unit of length used to express astronomical distances. It is about 9.5 trillion kilometres or 5.9 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). Because it includes the word year, the term light-year is sometimes misinterpreted as a unit of time.
You can select your seat online if: 1  You book your flight on aircanada.com., and. 2  You re travelling on: 3  Seat selection is not available on codeshare flights.4  an Air Canada or Air Canada rouge flight, or. 5  an Air Canada Express flight operated by Jazz, Sky Regional, Air Georgian Ltd. or Exploits Valley Air Services Ltd.ou can select your seat online if: 1  You book your flight on aircanada.com., and. 2  You re travelling on: 3  Seat selection is not available on codeshare flights.
- We know that you want your most precious cargo in your lap at all times. Lap children may fly at no charge if not occupying a seat. However, we encourage the use of an air travel approved car seat (and full-fare seat) whenever possible.- May have own seat and be seated in a FAA approved car seat.his will provide your child with the same level of buckled safety as adult passengers. Children between the ages of 15 days up to 2 years old traveling with a full fare-paying adult may also travel as lap children (on the lap of the adult) for no additional fee. Lap children may now be booked online.