Three Days at One Venue
The ASCO Gastrointestinal Cancers Symposium 2027 runs Thursday 21 to Saturday 23 January at Moscone West, 800 Howard Street in San Francisco. The venue's own event feed carries the booking from 21 to 23 January in Moscone West.
Registration stays open through 4:30 PM PT on Saturday 23 January.
Nights on Either Side of the Three Days
Two arrivals hold three nights each. Booking in on Wednesday 20 January and out on Saturday 23 January holds the nights of the 20th, 21st and 22nd. Booking in on Thursday 21 January and out on Sunday 24 January holds three nights as well.
No session clock for the three days appears on a page read for this article. Plan the nights around the dates the venue publishes and confirm the daily clocks with the organiser.
The Room Base the Venue Publishes
The convention centre publishes two room counts of its own. Its FAQ states that there are over 20,000 hotel rooms within walking distance of The Moscone Center. Its booking page states that more than two-thirds of the city's 34,000 hotel rooms sit within walking distance.
The same FAQ carries a limit on the venue's own inventory. "The Moscone Center does not rent rooms on an individual basis."
What Three Nights Cost in January
Engine's published San Francisco ladder puts the city average at 165 dollars a night, with January at 166 dollars and December at 129 dollars. Three nights at the January figure comes to 498 dollars.
That figure covers the city's lodging stock. A rate for a specific January night comes from the property, and the average is the planning base.
What the In-Person Fee Puts in the Day
The registration fee for in-person attendees includes entrance into all meeting sessions, posters and exhibits. It also includes three continental breakfasts, three boxed lunches and two wine and cheese poster receptions, by the organiser's own inclusion list.
The fee ladder for physicians and scientists runs in three steps. On or before December 2, 2026 the member rate is 975 dollars and the nonmember rate is 1,495 dollars. Between December 3, 2026 and January 8, 2027 the pair reads 1,125 and 1,645 dollars. From January 9, 2027 the pair reads 1,200 and 1,720 dollars.
Terms a Traveller Acts On
The early registration deadline is December 2, 2026 at 11:59 PM ET. Hotel reservations received after that date are processed on a space-available basis and may be subject to a higher rate.
Registration cancellation closes on 17 January 2027 at 11:59 PM ET. A cancellation on a hotel reservation must be made 72 hours before the arrival date to avoid a cancellation fee.
A fraud alert sits on the organiser's pages. Individuals unaffiliated with ASCO or SPARGO, Inc. may entice prospective attendees into registering and booking rooms through third-party websites, by the organiser's own warning. SPARGO, Inc. is the only official registration and housing provider for ASCO meetings and symposia.
The Demand the Last Edition Sized
The 2026 edition printed 5,190 registrations, made up of 4,230 professionals, 770 exhibitors and 190 media and others. The largest national groups were the United States at 2,610, Japan at 252, Canada at 152, China at 96, the United Kingdom at 80 and France at 73.
The last edition's count sizes the crowd around Moscone West for the three nights.