Technical Conference: 26 - 30 October 2025
Exhibition: 28 - 29 October 2025
Colorado Convention Center | Denver, Colorado, USA

Technical Conference: 26 - 30 October 2025
Exhibition: 28 - 29 October 2025
Colorado Convention Center | Denver, Colorado, USA

Travel Discounts

Special Discounts

Optica actively works with the host city, hotel and local area business to provide amenities, discounts and benefits to all FiO LS participants. 

Airline Discounts


Delta Air Lines is pleased to offer special discounts for Optica. Please visit the Delta Air Lines website to book your flights. Note that travel must be booked between the specified travel dates, at the specified airports in order to receive the discount. 

Fares offered: Up to 10% discount on applicable fares
Meeting Promotional Code: NY22F 
Travel Dates: 22 October - 04 November 2025
Destination: Denver International Airport (DEN)

Ticketing Questions
Delta Meeting Network®: 1 800.328.1111
Monday-Friday, 07:00 – 19:30  (US Central Time)
There is not a service fee for reservations booked and ticketed via our reservation 800 number. 

United Airlines partners with Optica for air travel to this meeting. Visit the United Airlines website and enter ZQ2H974415​ in the Offer Code form field. Or call the United Meeting Reservation Desk and mention Z Code, ZNUN, and Agreement Code, 974415​. Travel must be booked within the specified travel dates and at the specified airports in order to receive the discount. 

Meeting Promotional Code: ZQ2H974415
Travel Dates: 24 October - 02 November 2025
Destination: Denver International Airport (DEN)

Ticketing Questions
United Meeting Reservation Desk: 1 800.426.1122
Monday-Friday, 08:00 – 22:00 or Saturday-Sunday, 08:00 – 18:00 (US Eastern Time)
Booking fees are waived for Meeting reservations.