Oakland San Francisco Bay Airport to Boise Air Trml/Gowen Field OAK → BOI
444 nautical miles (511 statute miles) northeast on a straight line, true course 036°, about 022° magnetic at the departure end (variation 14E). At 120 knots that is 2 h 34 min at the quickest height in today's winds (34,000 ft, a 53-knot tailwind), arriving about 8:31 pm MDT (02:31 UTC), after sunset at the destination. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 1,128 flights in the DOT's last twelve reported months, the route's page.
The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words
Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.
Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 178 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 40 nm of the route.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, at the destination end.
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 OAK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B738 at 21,000 ft, 10 nm northwest, 2:06 pm PDT (21:06 UTC): moderate turbulence, remarks: during the descent zlc. 405 nm along the route, 10 nm northwest of the line.
as filed, and in English
BOI UA /OV BOI220040/TM 2106/FL210/TP B738/TB MOD/RM DURD /ZLC
- Report
- a routine report filed through BOI
- Where
- 40 nm southwest (220°) of BOI
- Time
- 21:06 UTC
- Height
- at 21,000 ft
- Aircraft
- B738
- Turbulence
- moderate
- Remarks
- during the descent zlc
- PC24 at 11,000 ft, 40 nm southeast, 2:23 pm PDT (21:23 UTC): light to moderate turbulence from 9,000 ft to 11,000 ft, remarks: during the descent RY35L rno. 138 nm along the route, 40 nm southeast of the line.
as filed, and in English
RNO UA /OV KRNO167020/TM 2123/FL110/TP PC24/TB CONT LGT OCNL MOD 110-090/RM DURD RY35L RNO
- Report
- a routine report filed through RNO
- Where
- 20 nm south (167°) of KRNO
- Time
- 21:23 UTC
- Height
- at 11,000 ft
- Aircraft
- PC24
- Turbulence
- continuous light occasional moderate from 11,000 ft to 9,000 ft
- Remarks
- during the descent RY35L rno
- E75L at 29,000 ft, 50 nm southeast, 2:03 pm PDT (21:03 UTC): light to moderate chop turbulence. 227 nm along the route, 50 nm southeast of the line.
as filed, and in English
WMC UA /OV WMC200050/TM 2103/FL290/TP E75L/TB CONS LGT OCNL MOD CHOP /ZLC
- Report
- a routine report filed through WMC
- Where
- 50 nm south (200°) of WMC
- Time
- 21:03 UTC
- Height
- at 29,000 ft
- Aircraft
- E75L
- Turbulence
- continuous light occasional moderate chop zlc
- PC24 at 40,000 ft, 4 nm west, 4:10 pm PDT (23:10 UTC): light to moderate turbulence. 296 nm along the route, 4 nm west of the line.
as filed, and in English
LOL UA /OV SDO291023/TM 2310/FL400/TP PC24/TB LGT OCNL MOD /ZLC
- Report
- a routine report filed through LOL
- Where
- 23 nm west (291°) of SDO
- Time
- 23:10 UTC
- Height
- at 40,000 ft
- Aircraft
- PC24
- Turbulence
- light occasional moderate zlc
- TBM8 at 19,000 ft, 7 nm west, 2:58 pm PDT (21:58 UTC): light rime icing from 10,000 ft to 18,000 ft, -20 °C. 395 nm along the route, 7 nm west of the line.
as filed, and in English
BOI UA /OV BOI209055/TM 2158/FL190/TP TBM8/TA M20/IC LGT RIME 180-100 /ZLC
- Report
- a routine report filed through BOI
- Where
- 55 nm southwest (209°) of BOI
- Time
- 21:58 UTC
- Height
- at 19,000 ft
- Aircraft
- TBM8
- Temperature
- −20 °C
- Icing
- light rime from 18,000 ft to 10,000 ft zlc
- E75L at 25,000 ft, 13 nm northwest, 2:19 pm PDT (21:19 UTC): light to moderate chop turbulence, -21 °C. 395 nm along the route, 13 nm northwest of the line.
as filed, and in English
BOI UA /OV BOI220050/TM 2119/FL250/TP E75L/TA M21/TB CONS LGT OCNL MOD CHOP/IC CLR /ZLC
- Report
- a routine report filed through BOI
- Where
- 50 nm southwest (220°) of BOI
- Time
- 21:19 UTC
- Height
- at 25,000 ft
- Aircraft
- E75L
- Temperature
- −21 °C
- Turbulence
- continuous light occasional moderate chop
- Icing
- clear zlc
- CL60 descending, 2 nm southeast, 4:00 pm PDT (23:00 UTC): remarks: + 10 knots on final. At the destination end, 2 nm southeast of the line.
as filed, and in English
BOI UA /OV BOI/TM 2300/FLDURD/TP CL60/RM +/- 10 KTS ON FINAL
- Report
- a routine report filed through BOI
- Where
- over BOI
- Time
- 23:00 UTC
- Height
- during the descent
- Aircraft
- CL60
- Remarks
- + 10 knots on final
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 UTC · at 120 knots true airspeed
The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 5 forecast points nearest it (SAC, RNO, LKV, BAM, BOI). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 320° at 7 kt | +2 kt | 4 °C | 118 kt | 3 h 46 min | 9:43 pm MDT (03:43 UTC) |
| 7,500 ft | 310° at 6 kt | 0 | 1 °C | 120 kt | 3 h 42 min | 9:39 pm MDT (03:39 UTC) |
| 9,500 ft | 260° at 7 kt | −5 kt | -2 °C | 125 kt | 3 h 33 min | 9:30 pm MDT (03:30 UTC) |
| 11,500 ft | 230° at 15 kt | −15 kt | -6 °C | 135 kt | 3 h 17 min | 9:14 pm MDT (03:14 UTC) |
| 13,500 ft | 230° at 21 kt | −20 kt | -10 °C | 140 kt | 3 h 10 min | 9:07 pm MDT (03:07 UTC) |
| 15,500 ft | 220° at 25 kt | −25 kt | -13 °C | 145 kt | 3 h 04 min | 9:01 pm MDT (03:01 UTC) |
| 17,500 ft | 220° at 29 kt | −29 kt | -17 °C | 149 kt | 2 h 59 min | 8:56 pm MDT (02:56 UTC) |
| 18,000 ft FL180 | 220° at 31 kt | −30 kt | -18 °C | 150 kt | 2 h 58 min | 8:55 pm MDT (02:55 UTC) |
| 24,000 ft FL240 | 220° at 37 kt | −36 kt | -26 °C | 156 kt | 2 h 51 min | 8:48 pm MDT (02:48 UTC) |
| 30,000 ft FL300 | 230° at 47 kt | −46 kt | -30 °C | 166 kt | 2 h 40 min | 8:37 pm MDT (02:37 UTC) |
| 34,000 ft FL340 | 230° at 53 kt | −53 kt | -33 °C | 173 kt | 2 h 34 min | 8:31 pm MDT (02:31 UTC) |
| 39,000 ft FL390 | 230° at 50 kt | −48 kt | -41 °C | 168 kt | 2 h 39 min | 8:36 pm MDT (02:36 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.
The forecast points as issued
| Point | From | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| SAC | used from 0 nm out; 34 nm from the line | 270/5 | L/V 5° | L/V -1° | 240/11 -5° | 250/22 -15° | 270/25 -24° | 260/31 -27° | 240/39 -33° | 240/39 -42° |
| RNO | used from 99 nm out; 42 nm from the line | 320/7 | 260/13 1° | 230/21 -7° | 210/38 -17° | 220/43 -26° | 230/54 -29° | 230/59 -32° | 230/54 -41° | |
| LKV | used from 247 nm out; 92 nm from the line | 010/18 -6° | 280/7 -11° | 290/9 -22° | 280/13 -27° | 290/20 -31° | 260/19 -34° | 260/27 -39° | ||
| BAM | used from 296 nm out; 97 nm from the line | 270/8 4° | 230/27 -4° | 220/49 -18° | 210/52 -26° | 220/77 -29° | 220/71 -33° | 220/63 -43° | ||
| BOI | used from 346 nm out; 74 nm from the line | 330/14 4° | 230/5 -2° | 220/20 -7° | 210/37 -20° | 200/59 -26° | 200/67 -34° | 210/73 -35° | 220/62 -41° |
The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| OAK Oakland, CA | departure | no report just now | 9 ft | ||||
| CCR Concord, CA | 20 nm out, 4 nm west of the line, tower | no report just now | 25 ft | ||||
| SAC Sacramento, CA | 59 nm out, 1 nm southwest of the line, tower | no report just now | 23 ft | ||||
| BLU Emigrant Gap, CA | 119 nm out, 2 nm south of the line | no report just now | 5,283 ft | ||||
| TRK Truckee, CA | 138 nm out, 21 nm southeast of the line, tower | no report just now | 5,904 ft | ||||
| REO Rome, OR | 356 nm out, 19 nm northwest of the line | no report just now | 4,053 ft | ||||
| BOI Boise, ID | destination | no report just now | 2,871 ft |
The highest airport on this list sits at 5,904 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BOI when you get there the forecast at the estimated arrival, 8:31 pm MDT (02:31 UTC)
BOI has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 22 nm from the route, at the departure end · drones kept away from a public gathering · until 12 October · ZOA
- 6/7455 SAN FRANCISCO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 8 nm from the route, at the departure end · security · until 11 October · ZOA
- 6/6741 SAN FRANCISCO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 6 nm from the route, at the departure end · air shows/sports · until 11 October · ZOA
- 6/6740 SACRAMENTO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local on the route, 69 nm along the route · air shows/sports · until 11 October · ZOA
- 6/3475 BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 10 nm from the route, 89 nm along the route · security · until 1 November · ZOA
Daylight
Sunset at OAK 6:35 pm PDT (01:35 UTC), at BOI 7:06 pm MDT (01:06 UTC) (civil twilight ends 7:35 pm MDT (01:35 UTC)). At 120 knots the arrival at BOI is after sunset there (7:08 pm MDT (01:08 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.
Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads
Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Oakland San Francisco Bay Airport, Boise Air Trml/Gowen Field.