• Technical Conference:  5 – 10 May 2019
  • Exhibition: 7 – 9 May 2019

Special Discounts for CLEO Attendees:

CLEO Management continues to enhance the benefits we provide to all CLEO participants. We actively work with the host city, hotel and local area business to provide amenities and discounts. Additional discounts will become available from now until the conference. Please continue to check back for up-to-date discount programs and information!

Airline Discounts
Ground Transportation Discounts
Show Your Badge Discounts
Make Your Hotel Reservation


Airline Discounts

United Airlines logo. 

We have partnered with United Airlines to offer travel discounts to CLEO 2019. 

Visit www.united.com/meetingtravel and enter (ZFMS247983) in the Offer Code box.
You may also call United Meeting Reservation Desk at 800-426-1122 Mon-Fri 8am – 10pm ET and Sat/Sun 8am – 6pm ET. Booking fees are waived for Meeting reservations.     
Please note that travel must be booked between (5/2/2019-5/13/2019) in order to receive the discount. The flights covered under this discounts are for those from and to San Jose (SJC) and San Francisco (SFO) airports.


Delta Airlines logo.

Delta Air Lines is pleased to offer special discounts for The Optical Society, for domestic and international flights at San Jose, CA (SJC), San Francisco, CA (SFO), and Oakland, CA (OAK) when using the following code:  Account Code: NMSDF   (only valid May 2, 2019 to May 13, 2019)
Please click here to book your flights!
You may also call Delta Meeting Network® at 1.800.328.1111* Monday–Friday, 7:00 a.m. – 7:30 p.m. (CT) and refer to Meeting Event Code NMSDF (only valid May 2, 2019 to May 13, 2019)

*Please note there is not a service fee for reservations booked and ticketed via our reservation 800 number.


Ground Transportation Discounts

Avis Rent-a-Car
is pleased to offer low rates with unlimited mileage to participants attending CLEO.  There are several wasys to reserve a car. To make a reservation call Avis at +1-800-331-1600, or book online at Avis website. and enter D340737. Attendees should provide the reservations agent with the Avis Worldwide Discount (AWD) Number: D340737 to ensure you receive teh best available car retnal rates.
SuperShuttle Shared Ride Van
SuperShuttle is pleased to offer a discount off a roundtrip or one way reservation to participants attending the conference. Please refer to the National Discount Code 9FL3V. Discounted reservations must be made on the SuperShuttle website.   Discount does not apply to exclusive vans (which are already discounted) or pre-existing reservations.  Discounts cannot be applied retroactively. It is valid on select (Booking codes: ATF, EMG, EWC, and VAN) SuperShuttle and ExecuCar services nationwide.

Amtrak logo.
Amtrak is offering CLEO attendees a discount off the best available rail fare. Special Amtrak Convention Fare Code number X29I-999 has been activated for May 2, 2019 – May 13, 2019. Travel dates are three days prior to the convention start date and three days following the last day of the meeting. Meeting attendees who mention this code when making reservations will receive a 10% savings off the lowest available rail fare. To book your reservation call Amtrak or contact your local travel agent.


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