Air Canada
is the Official Canadian Airline for this event, offering special discounts to delegates attending the 2017 COS Annual Meeting for travel to and from Montreal between June 8 and 25, 2017.

The promotion code ABER9C31 has to be entered during the online booking.

A ticket is eligible for the discount provided it has been purchased on, and provided the Promotion Code has been applied at time of purchase. A ticket purchased on but for which the applicable Promotion Code was not entered or was entered incorrectly will not be eligible for the Discount. Only bookings made to the designated convention city are eligible for the Discount. Bookings originating in the convention city are not eligible. Ticketing agencies/airlines must record the code on the delegate’s ticket.

is pleased to offer a 10% discount for travel to and from COS 2017 Annual Meeting and Exhibition on applicable fares by utilizing the coupon code 9NKYDQL with our simple online booking process. The discount is valid across WestJet’s extensive network for flights in to and out of Ottawa, Ontario.

  • The 10% discount applies to all of our fare products, Econo, Flex and Plus on our entire flight network.
  • The percentage-based discount is applied to the base fare only. Taxes, fees and charges are extra.
  • The discount applies to the following travel period: June 8, 2017 to June 25, 2017.
  • The discount only applies to flights marketed and operated wholly by WestJet, and is not applicable when travelling with our code-share, interline or other airline partners.
  • This promo code is not valid in conjunction with any other discount. WestJet’s fare rules and conditions apply.
  • The promo code is intended for use by meeting and conference attendees and organizers and is not meant for distribution to any outside third parties or unauthorized channels.


Porter Airlines is proud to offer a 10% discount on available base fares (with the exception of the lowest class fare during a public seat sale) for travel to and from the 2017 COS Annual Meeting and Exhibition. The discounted fares are available for booking from December 01, 2016 to June 21, 2017 and available for travel:

From To From To
Anywhere in Canada
or the United States
Montréal 12/06/2017 18/06/2017
Montréal Anywhere in Canada
or the United States
15/06/2017 21/06/2017

Please book online at or through your travel agent using promo code COSAME.

Porter offers complimentary in-flight snacks and beverages (including beer and wine), GatePorter service for carry-on and access to the Porter Lounge in Toronto and Ottawa, where free Wi-Fi and comfortable, leather seating is available.

The promo code is intended for use by conference attendees and organizers and is not meant for distribution outside of authorized channels. Porter’s fare rules and conditions apply. For any questions regarding Porter’s services or any pre-travel concerns, contact us at 1-888-619-8622.


VIA Rail Canada will be the official ground transportation company for the Canadian Ophthalmological Society. The corporate discount code is 811154.

Online booking tips
Please log in to your profile, or create one before booking. On the Passenger information screen, select “Corporate Rate” from the “Discount Type” drop-down menu, and enter the corporate discount code in the “Discount code” field. The conference fare will be shown on the next page.

Employees or members will be asked for proof of employment or membership from time to time. They should always carry with them some ID (such as a drivers license) and the attached VIA Rail Canada Corporate Discount Code letter. This will identify them as being members or staff of COS.