KORD Runway 09R/27L — Chicago O'Hare International Airport

Nov 3, 2026 (airport-local day): 2 configuration changes since local midnight, from the tower's TFDM configuration ATIS Alerts recorded. A change is a different arrival or departure set; a new ATIS letter with the same runways is folded into the row it belongs to. The history section below counts the same way over rolling windows.

1. 06:01Z12:01 AM CST(in effect since before the day began)

   7.5 h
   Arrivals

   28C27C27R

   Departures

   28R22L
   West flowLAHSO in effectIn effect at the start of the day
2. 13:32Z7:32 AM CST
   Arrivals

   09L10C10R

   Departures

   10L09C
   East flowFlow changed: West → East · Arrivals +09L, 10C, 10R −28C, 27C, 27R · Departures +10L, 09C −28R, 22L
3. 13:32Z7:32 AM CST

   1.5 h · current
   Arrivals

   28C27C27R

   Departures

   28R22L
   West flowLAHSO in effectFlow changed: East → West · Arrivals +28C, 27C, 27R −09L, 10C, 10R · Departures +28R, 22L −10L, 09C

Time · runway 09R/27L · airport-wide outlook · confidence · forecast wind · why

1. Now1501Z · 9:01 AM CST·09R/27L: not in the stated configuration·Current airport configuration (tower TFDM): arrivals 27R · 27C · 28C · departures 22L · 28R·stated·wind 180° at 14 kt G26
2. +1 h1601Z · 10:01 AM CST·09R/27L: not favored·airport-wide likely 22L then 28R·Southwest flow·16 kt headwind, 10 kt crosswind·High 95%·wind 190° at 19 kt G31·Why TAF forecast wind 190° at 19 kt gusting 31 favors south-facing runway ends: 16 kt headwind and 10 kt crosswind on 22L versus 3 kt headwind on 28R.|This would be a change from the current 27R, 27C and 28C configuration.|Runways 04L and 22R are excluded: stated closed.|Gusts well above the steady wind (confidence lowered).|Confidence falls with forecast distance (+1 h).
3. +2 h1701Z · 11:01 AM CST·09R/27L: not favored·airport-wide likely 22L then 28R·Southwest flow·16 kt headwind, 10 kt crosswind·High 95%·wind 190° at 19 kt G31·Why TAF forecast wind 190° at 19 kt gusting 31 favors south-facing runway ends: 16 kt headwind and 10 kt crosswind on 22L versus 3 kt headwind on 28R.|This would be a change from the current 27R, 27C and 28C configuration.|Runways 04L and 22R are excluded: stated closed.|Gusts well above the steady wind (confidence lowered).|Confidence falls with forecast distance (+2 h).
4. +3 h1801Z · 12:01 PM CST·09R/27L: not favored·airport-wide likely 22L then 28R·Southwest flow·16 kt headwind, 10 kt crosswind·High 95%·wind 190° at 19 kt G31·Why TAF forecast wind 190° at 19 kt gusting 31 favors south-facing runway ends: 16 kt headwind and 10 kt crosswind on 22L versus 3 kt headwind on 28R.|This would be a change from the current 27R, 27C and 28C configuration.|Runways 04L and 22R are excluded: stated closed.|Gusts well above the steady wind (confidence lowered).|Confidence falls with forecast distance (+3 h).
5. +6 h2101Z · 3:01 PM CST·09R/27L: not favored·airport-wide likely 22L then 10L·Southwest flow·12 kt headwind, 11 kt crosswind·High 95%·wind 180° at 16 kt G26·Why TAF forecast wind 180° at 16 kt gusting 26 favors south-facing runway ends: 12 kt headwind and 11 kt crosswind on 22L versus 0 kt headwind on 10L.|This would be a change from the current 27R, 27C and 28C configuration.|Runways 04L and 22R are excluded: stated closed.|A TEMPO group is in effect at this hour (confidence lowered).|Gusts well above the steady wind (confidence lowered).|Confidence falls with forecast distance (+6 h).
6. +12 h0301Z · 9:01 PM CST·09R/27L: not favored·airport-wide likely 22L then 10L·Southwest flow·7 kt headwind, 12 kt crosswind·Low 20%·wind 160° at 14 kt G24·Why TAF forecast wind 160° at 14 kt gusting 24 favors south-facing runway ends: 7 kt headwind and 12 kt crosswind on 22L versus 5 kt headwind on 10L.|This would be a change from the current 27R, 27C and 28C configuration.|Runways 04L and 22R are excluded: stated closed.|A TEMPO group is in effect at this hour (confidence lowered).|Gusts well above the steady wind (confidence lowered).|Confidence falls with forecast distance (+12 h).

ATIS Alerts Predicted Runway is an estimate from the TAF wind forecast, runway geometry (most headwind, crosswind penalised, tailwind over 5 kt avoided, longest runway breaks ties), the current stated configuration and any stated closures; recorded tower use since Sep 10, 2026 (720 h) is an input wherever a wind sector has 24 h on record. Each row lists its reasons; “no runway favored” is a genuine answer under variable or light wind, never replaced by a guess. It is not an ATC assignment and does not know about noise abatement or traffic flow unless the recorded history shows them. TAF issued 1137Z (5:37 AM CST).

Source: FAA NASR 28-day subscription, cycle effective 2026-10-01 (equipment on record) · FAA NOTAMs via SWIM (live)and the current D-ATIS (outages). “Not available” means the FAA record lists no such equipment for the end; nothing here is inferred. An outage annotation is only ever a reading of the official text shown with it. Declared distances are not shown in this phase.

LAHSO CURRENTLY REPORTED IN D-ATIS“LAND AND HOLD SHORT OPERATIONS ARE IN EFFECT”

A hold-short point on record means LAHSO can be conducted to this end; it is active only when ATC says so. Source: FAA NASR cycle 2026-10-01; D-ATIS text read by ATIS Alerts.

Rows marked “Runway 09R/27L” are sectorized to this runway complex in the FAA record; “Airport-wide” rows serve every runway. Source: FAA NASR FRQ, cycle 2026-10-01. Verify on the current chart supplement before use.

Length

11,260 ft

Width

150 ft

Surface

Asphalt · Excellent condition

Surface treatment

Grooved

Weight bearing (lb)

S 120k · D 250k · 2D 550k · 2D/2D2 1118k

PCN

1180

Runway lights

Lighted

Airport elevation

680 ft

Published FAA baseline

Open

Published NASR record; does not reflect temporary closures or restrictions. Current operational status is the card at the top of the page.

Runway 09R/27L numbers are magnetic; the stored geometry and every wind calculation on this page are TRUE north, so they never need a variation correction. Magnetic headings use the FAA's published variation for this airport, 3.0°W (2010), the same value printed on the FAA airport diagram. Surface condition, treatment, weight bearing, thresholds and traffic pattern are from the FAA NASR record (cycle 2026-10-01); lighting, ILS and LAHSO are in their own sections above. Declared distances are not shown in this phase.

Runway percentages are measured independently. Multiple runways can be active simultaneously, so totals may exceed 100%.

Observed runway usage — 720 hours of tower TFDM runway configuration history collected · 9 distinct configurations observed · through Nov 3, 2026. Shares are the fraction of recorded hours in which the tower's TFDM configuration listed each end. Wind sectors use the wind reported when each configuration began. Nothing here is inferred from wind; the wind-favored analysis for KORD is a separate module. 90-day, 12-month and seasonal views appear once the record is long enough.

2 departure procedures · 19 STARs · FAA hot spots page ↗ · LAHSO page ↗ · FAA d-TPP cycle 2611. Plates open on aeronav.faa.gov (public domain); ATIS Alerts does not reproduce charts or minimums.