24 demand-moving dates for the Chicago hotel market, compiled 2026-08-03 from public sources. 11 are rated high impact. Dates marked "verify" follow the event's recurring pattern but are not yet officially confirmed — check the source before pricing against them.
| Dates | Event | Impact | Where | Source |
|---|---|---|---|---|
| 2026-10-11 | Bank of America Chicago Marathon 2026 (48th running) sports Confirmed for Sunday 11 Oct 2026 (second Sunday of October). ~50,000 runners, an Abbott World Marathon Major with a huge international field; expo runs Fri-Sat, producing citywide compression Thu-Sun. | high | Grant Park start/finish, citywide course | source ↗ |
| 2026-10-18 → 2026-10-21 | PACK EXPO International 2026 trade_fair Confirmed 18-21 Oct 2026 at McCormick Place. Biennial (even-year) edition of the world's largest packaging and processing show: 2,600+ exhibitors and ~48,000 attendees, a top-tier citywide convention block. | high | McCormick Place | source ↗ |
| 2026-11-26 → 2026-11-29 | Chicago Thanksgiving Parade & Thanksgiving weekend holiday Parade confirmed for Thursday 26 Nov 2026, 8am on State Street (~400,000 spectators). Thanksgiving-weekend leisure shopping/lights kickoff lifts downtown occupancy into the RSNA arrival weekend. | medium | State Street / The Loop | source ↗ |
| 2026-11-29 → 2026-12-03 | RSNA 2026 Scientific Assembly & Annual Meeting (112th) conference Confirmed 29 Nov - 3 Dec 2026 at McCormick Place (technical exhibits close 2 Dec). World's largest medical congress at ~40,000 attendees; RSNA week is the single biggest hotel-demand event of the Chicago year, compressing the entire market at peak ADR. | high | McCormick Place | source ↗ |
| 2026 dates not yet published; the market runs annually from around 20-21 Nov through 24 Dec at Daley Plaza (2025: 21 Nov - 24 Dec), anchoring the Loop holiday season. Draws well over a million visits and lifts December leisure weekends downtown. verify | Christkindlmarket Chicago 2026 & holiday season holiday | medium | Daley Plaza / The Loop | source ↗ |
| 2026-12-31 → 2027-01-01 | New Year's Eve celebrations (Chi-Town Rising fireworks, Navy Pier & Riverwalk) holiday Fixed-date annual peak leisure night: synchronized midnight fireworks on the Chicago River and at Navy Pier, televised countdown events, hotel/restaurant package sell-outs downtown. Highest leisure ADR night of the winter. | medium | Navy Pier / Chicago Riverwalk / downtown | source ↗ |
| 2027-02-13 → 2027-02-21 verify | Chicago Auto Show 2027 (119th edition) trade_fair Ticketing outlets list 13-21 Feb 2027 at McCormick Place; official site still shows the 2026 edition, so confirm before locking. North America's largest auto show; attendance is heavily regional drive-in, so hotel impact is moderate but it lifts an otherwise dead February, including Presidents Day weekend. | medium | McCormick Place | source ↗ |
| 2027-03-13 → 2027-03-14 verify | St. Patrick's Day river dyeing & parade weekend 2027 cultural By fixed tradition the river dyeing and downtown parade fall on the Saturday before 17 March, i.e. 13 Mar 2027 (South Side Irish Parade follows Sunday); official parade confirmation pending. One of the highest leisure-occupancy weekends of the Chicago hotel year, with strong regional inbound. | high | Chicago River / The Loop / Grant Park | source ↗ |
| 2027-03-09 → 2027-03-11 | The Inspired Home Show 2027 (IHA housewares show) trade_fair Confirmed 9-11 Mar 2027 at McCormick Place. The former International Home + Housewares Show; a legacy citywide with tens of thousands of buyers and exhibitors filling downtown blocks in shoulder season. | medium | McCormick Place | source ↗ |
| 2027-04-05 → 2027-04-08 | HIMSS27 Global Health Conference & Exhibition conference Confirmed 5-8 Apr 2027 at McCormick Place (preconference Mon 5 Apr, main conference Tue-Thu). Health-IT congress of ~30,000+ attendees returning to Chicago; a true citywide compression block. | high | McCormick Place | source ↗ |
| 2027-04-30 → 2027-05-02 | C2E2 2027 - Chicago Comic & Entertainment Expo cultural Confirmed 30 Apr - 2 May 2027 in McCormick Place South Building (moved from its usual mid-April slot). ~90,000+ pop-culture fans over three days, many regional but with meaningful downtown and McCormick-area room-night pickup. | medium | McCormick Place | source ↗ |
| 2027-05-22 → 2027-05-25 | National Restaurant Association Show 2027 trade_fair Confirmed 22-25 May 2027 at McCormick Place. The Western Hemisphere's largest foodservice trade show (~50,000+ registrants, 2,000+ exhibitors); a classic Chicago citywide with strong international attendance. | high | McCormick Place | source ↗ |
| 2027-05-29 → 2027-05-30 | Sueños Music Festival 2027 festival Confirmed 29-30 May 2027 in Grant Park over Memorial Day weekend. Major reggaeton/Latin festival (~65,000+/day) with a large out-of-town crowd; layers onto an already strong holiday-weekend leisure base downtown. | medium | Grant Park | source ↗ |
| 2027-06-04 → 2027-06-08 | ASCO Annual Meeting 2027 (American Society of Clinical Oncology) conference Confirmed 4-8 Jun 2027 at McCormick Place. ~40,000+ oncology professionals; alongside RSNA it is one of the two biggest hotel-demand weeks of the Chicago calendar, with citywide sell-outs and peak ADR. | high | McCormick Place | source ↗ |
| 2027 dates not yet published; held annually in early-mid June at Millennium Park (2026: 4-7 Jun). World's largest free blues festival; mostly local/regional day visitors, so hotel impact is modest but it lifts a June weekend. verify | Chicago Blues Festival 2027 festival | low | Millennium Park | source ↗ |
| 2027-06-13 → 2027-06-16 | NeoCon 2027 (commercial design expo, 58th edition) trade_fair Confirmed 13-16 Jun 2027 at The Mart. North America's largest commercial-interiors show, ~50,000 design professionals; concentrates demand in River North/Loop hotels rather than McCormick-area properties. | medium | The Mart (Merchandise Mart), River North | source ↗ |
| 2027 dates not yet announced; the festival returned to a five-day Grant Park format in early July (2026: 8-12 Jul). Large free food/music festival drawing hundreds of thousands, mostly regional; modest but real weekend hotel lift. verify | Taste of Chicago 2027 festival | medium | Grant Park | source ↗ |
| 2027 dates not yet officially announced; held annually Thursday-Sunday over the late-July/early-August weekend (2026: 30 Jul - 2 Aug), so expect ~29 Jul - 1 Aug 2027. ~100,000/day with a large out-of-state and international crowd; the biggest leisure compression event of the Chicago summer. verify | Lollapalooza 2027 festival | high | Grant Park | source ↗ |
| 2027-08-14 → 2027-08-15 verify | Chicago Air and Water Show 2027 festival Air-show schedule listings show 14-15 Aug 2027 with the USAF Thunderbirds; city confirmation pending. Largest free show of its kind in the US (~1M+ spectators along the lakefront); mostly regional day-trippers, moderate lift for lakefront/Gold Coast hotels. | medium | North Avenue Beach / lakefront | source ↗ |
| 2027 dates not yet published; held annually over Labor Day weekend at Millennium Park (Labor Day 2027 is 6 Sep, so expect ~2-5 Sep 2027). Free festival with mainly local/regional attendance; minor hotel effect on a holiday weekend. verify | Chicago Jazz Festival 2027 festival | low | Millennium Park | source ↗ |
| 2027-09-13 → 2027-09-16 | FABTECH 2027 trade_fair Chicago hosts FABTECH in odd years; 2027 edition listed for 13-16 Sep 2027 at McCormick Place. North America's largest metal forming/fabricating/welding show (~40,000+ attendees, 1,500+ exhibitors); a full citywide convention block. | high | McCormick Place | source ↗ |
| 2027 dates not yet announced; the festival is contracted to remain in Douglass Park through at least 2027 and runs annually over a mid-late September weekend (2026: 18-20 Sep). ~50,000/day punk/rock festival with a meaningful traveling fanbase. verify | Riot Fest 2027 festival | medium | Douglass Park, West Side | source ↗ |
| 2027-10-10 | Bank of America Chicago Marathon 2027 (49th running) sports Official future-dates page lists Sunday 10 Oct 2027 (second Sunday of October; subject to change). ~50,000 runners plus supporters; expo Fri-Sat and citywide compression Thu-Sun at strong ADR. | high | Grant Park start/finish, citywide course | source ↗ |
| 2027-11-14 → 2027-11-18 | RSNA 2027 Scientific Assembly & Annual Meeting (113th) conference Confirmed 14-18 Nov 2027 at McCormick Place - an earlier-than-usual slot, the week before US Thanksgiving (technical exhibits close 17 Nov). ~40,000 attendees; the defining citywide compression week of the Chicago hotel year. | high | McCormick Place | source ↗ |
This is the citywide headline layer — the same format your property calendar ($99/year) delivers, plus your neighborhood, your feeder markets' school breaks, negative drivers, and quarterly refreshes.