San Francisco International to Chicago O'Hare International SFO → ORD

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

• SIGMET W72W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 219 to 298 nm out.
  as issued

  WSUS33 KKCI 112355
  MKCW WST 112355
  CONVECTIVE SIGMET 72W
  VALID UNTIL 0155Z
  NV
  FROM 60SSW BAM-60W ELY-OAL-40WNW OAL-60SSW BAM
  AREA TS MOV FROM 23020KT. TOPS TO FL300.

• SIGMET W71W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the south at 40 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 457 to 557 nm out.
  as issued

  WSUS33 KKCI 112355
  MKCW WST 112355
  CONVECTIVE SIGMET 71W
  VALID UNTIL 0155Z
  WY UT ID
  FROM 40S DBS-40WNW BPI-30WSW MTU-30SSW DTA-30SE TWF-40S DBS
  AREA EMBD TS MOV FROM 20040KT. TOPS TO FL270.

• SIGMET W70W: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Near the route, 666 nm along the route.
  as issued

  WSUS33 KKCI 112355
  MKCW WST 112355
  CONVECTIVE SIGMET 70W
  VALID UNTIL 0155Z
  MT WY
  FROM 30SSW MLS-60WNW BFF-40SSE OCS-10S BPI-10S BIL-30SSW MLS
  AREA TS MOV FROM 22040KT. TOPS TO FL320.

• SIGMET W68W: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Near the route, 696 nm along the route.
  as issued

  WSUS33 KKCI 112355
  MKCW WST 112355
  CONVECTIVE SIGMET 68W
  VALID UNTIL 0155Z
  CO NM AZ UT
  FROM 30W CHE-20NNW TBE-60SE ABQ-40N SJN-30SW MTU-30W CHE
  AREA TS MOV FROM 23040KT. TOPS TO FL360.

• AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 119 to 199 nm out.
• AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 239 to 626 nm out.
• AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 298 to 974 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 308 to 785 nm out.
• AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 437 to 616 nm out.
• AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 447 to 845 nm out.
• AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 497 to 765 nm out.
• AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 656 to 696 nm out.

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from SFO.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

Not fetched just now.

At ORD when you get there the forecast at the estimated arrival, 4:11 am CDT (09:11 UTC)

ORD has no terminal forecast; use the nearest airport that does.

Temporary flight restrictions on the line or within 25 nm of it

• 6/7455 SAN FRANCISCO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 10 nm from the route, at the departure end · security · ended 11 October · ZOA
• 6/6741 SAN FRANCISCO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 7 nm from the route, at the departure end · air shows/sports · ended 11 October · ZOA
• 6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 18 nm from the route, at the departure end · drones kept away from a public gathering · until 12 October · ZOA

Daylight

Sunset at SFO 6:36 pm PDT (01:36 UTC), at ORD 6:16 pm CDT (23:16 UTC) (civil twilight ends 6:44 pm CDT (23:44 UTC)). At 120 knots the arrival at ORD is before sunrise there (7:00 am CDT (12:00 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.