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.
One of the convenient features when booking your flight through an airline's website is being able to choose your seat. Reserving a seat through an online ticketing system saves you the time and hassle of being assigned a random seat when you check in for your flight.tep 7. Choose seats for any additional passengers. Once you select a seat, the selector automatically goes to the next traveler. Once you've selected seats for all the passengers in your group, click on the Next Flight button and select seats for any connecting flights and for your return trip.