Plan a flight · Mon 6:08 am PDT (13:08 UTC)

San Francisco International to City Of Colorado Springs Municipal SFO → COS

836 nautical miles (962 statute miles) east on a straight line, true course 080°, about 066° magnetic at the departure end (variation 14E). At 120 knots that is 5 h 02 min at the quickest height in today's winds (34,000 ft, a 46-knot tailwind), arriving about 12:10 pm MDT (18:10 UTC). Right now SFO is VFR, wind from the west (280°) at 5 knots; COS is VFR, wind from the east (090°) at 6 knots. 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: 10 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

SIGMET W26W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the south at 35 knots, until 7:55 am PDT (14:55 UTC). Over the route from 348 to 348 nm out.
as issued
```
WSUS33 KKCI 121255
MKCW WST 121255
CONVECTIVE SIGMET 26W
VALID UNTIL 1455Z
NV
FROM 40WNW ILC-ILC-60N LAS-60NE BTY-40WNW ILC
AREA TS MOV FROM 20035KT. TOPS TO FL300.
```
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 189 nm of the route.
AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 90 to 149 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 269 to 746 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 298 to 647 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 338 to 666 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the last 358 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the last 179 nm of the route.
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). Near the route, 696 nm along the route.
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 last 20 nm of the route.

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

urgent C172 at 6,700 ft, 46 nm north, 5:54 am PDT (12:54 UTC): remarks: low-level wind shear + 10 knots during the climb. At the destination end, 46 nm north of the line.
as filed, and in English
```
APA UUA /OV KAPA/TM 1254/FL067/TP C172/RM LLWS +/- 10 KTS DURC
```
Report
an urgent report filed through APA
Where
over KAPA
Time
12:54 UTC
Height
at 6,700 ft
Aircraft
C172
Remarks
low-level wind shear + 10 knots during the climb
urgent FA7X at 6,800 ft, 46 nm north, 5:40 am PDT (12:40 UTC): remarks: low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R. At the destination end, 46 nm north of the line.
as filed, and in English
```
APA UUA /OV KAPA/TM 1240/FL068/TP FA7X/RM LLWS -40 KTS DURC RY 35R
```
Report
an urgent report filed through APA
Where
over KAPA
Time
12:40 UTC
Height
at 6,800 ft
Aircraft
FA7X
Remarks
low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R
urgent TBM7 at 100 ft, 45 nm north, 5:30 am PDT (12:30 UTC): light chop turbulence, remarks: low-level wind shear a 10-knot loss of airspeed. At the destination end, 45 nm north of the line.
as filed, and in English
```
APA UUA /OV APA140001/TM 1230/FL001/TP TBM7/TB LGT CHOP/RM LLWS +-10KTS
```
Report
an urgent report filed through APA
Where
1 nm southeast (140°) of APA
Time
12:30 UTC
Height
at 100 ft
Aircraft
TBM7
Turbulence
light chop
Remarks
low-level wind shear a 10-knot loss of airspeed
B738 descending, 36 nm north, 5:55 am PDT (12:55 UTC): moderate turbulence from 16,000 ft to 20,000 ft. At the destination end, 36 nm north of the line.
as filed, and in English
```
DEN UA /OV 40SW DEN/TM 1255/FLDURD/TP B738/TB MOD 200-160
```
Report
a routine report filed through DEN
Where
40SW den
Time
12:55 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate from 20,000 ft to 16,000 ft
C172 at 200 ft, 47 nm north, 5:35 am PDT (12:35 UTC): moderate turbulence, remarks: low-level wind shear a 15-knot loss of airspeed. At the destination end, 47 nm north of the line.
as filed, and in English
```
APA UA /OV APA350001/TM 1235/FL002/TP C172/TB MOD TURB/RM LLWS +-15KTS
```
Report
a routine report filed through APA
Where
1 nm north (350°) of APA
Time
12:35 UTC
Height
at 200 ft
Aircraft
C172
Turbulence
moderate turbulence
Remarks
low-level wind shear a 15-knot loss of airspeed
C172 at 9,500 ft, 14 nm north, 5:43 am PDT (12:43 UTC): moderate chop turbulence. At the destination end, 14 nm north of the line.
as filed, and in English
```
COS UA /OV BRK348/005/TM 1243/FL095/TP C172/TB TB MOD CHOP
```
Report
a routine report filed through COS
Where
BRK348/005
Time
12:43 UTC
Height
at 9,500 ft
Aircraft
C172
Turbulence
turbulence moderate chop
UAL1806 at 39,000 ft, 31 nm south, 5:32 am PDT (12:32 UTC): light chop turbulence, wind 238° at 14 knots. 90 nm along the route, 31 nm south of the line.
as filed, and in English
```
ARP UAL1806 3722N 12024W 1232 F390 238/014KT TB OCNL LGT CHOP IC
```
Report
a routine report filed through ARP
B737 at 15,000 ft, 13 nm north, 5:12 am PDT (12:12 UTC): light chop turbulence, remarks: continuous light turbulence occasional moderate chop entered by zoa fdcs. 149 nm along the route, 13 nm north of the line.
as filed, and in English
```
FAT UA /OV FMG150080/TM 1212/FL150/TP B737/TB LGT/RM CONS LGT TURB OCNL MOD CHOP ENTERED BY ZOA FDCS
```
Report
a routine report filed through FAT
Where
80 nm southeast (150°) of FMG
Time
12:12 UTC
Height
at 15,000 ft
Aircraft
B737
Turbulence
light
Remarks
continuous light turbulence occasional moderate chop entered by zoa fdcs
PC12 at 5,000 ft, 21 nm north, 4:23 am PDT (11:23 UTC): light to moderate turbulence, no icing, remarks: during the descent zdvwc. 656 nm along the route, 21 nm north of the line.
as filed, and in English
```
GJT UA /OV GJT/TM 1123/FL050/TP PC12/TB LGT-MOD/IC NEG/RM DURD. ZDVWC
```
Report
a routine report filed through GJT
Where
over GJT
Time
11:23 UTC
Height
at 5,000 ft
Aircraft
PC12
Turbulence
light to moderate
Icing
none
Remarks
during the descent zdvwc
A359 at 38,000 ft, 35 nm south, 3:13 am PDT (10:13 UTC): light chop turbulence, remarks: ZDVWC-37. 716 nm along the route, 35 nm south of the line.
as filed, and in English
```
GUC UA /OV HBU185015/TM 1013/FL380/TP A359/TB CONS LGT CHOP/RM ZDVWC-37
```
Report
a routine report filed through GUC
Where
15 nm south (185°) of HBU
Time
10:13 UTC
Height
at 38,000 ft
Aircraft
A359
Turbulence
continuous light chop
Remarks
ZDVWC-37
B752 at 23,000 ft, 30 nm north, 4:39 am PDT (11:39 UTC): no turbulence, remarks: zdvwc. 786 nm along the route, 30 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN231058/TM 1139/FL230/TP B752/TB NEG/RM ZDVWC
```
Report
a routine report filed through DEN
Where
58 nm southwest (231°) of DEN
Time
11:39 UTC
Height
at 23,000 ft
Aircraft
B752
Turbulence
none
Remarks
zdvwc
UAL1735 at 19,000 ft, 37 nm north, 4:50 am PDT (11:50 UTC): light chop turbulence, wind 237° at 58 knots. At the destination end, 37 nm north of the line.
as filed, and in English
```
ARP UAL1735 3925N 10525W 1150 F190 237/058KT TB INTMT LGT CHOP IC
```
Report
a routine report filed through ARP
B737 at 13,000 ft, 0 nm southwest, 6:00 am PDT (13:00 UTC): light turbulence. At the destination end, 0 nm southwest of the line.
as filed, and in English
```
COS UA /OV BRK082/11/TM 1300/FL130/TP B737/TB TB LGT
```
Report
a routine report filed through COS
Where
BRK082/11
Time
13:00 UTC
Height
at 13,000 ft
Aircraft
B737
Turbulence
turbulence light
B737 at 17,000 ft, 26 nm north, 5:24 am PDT (12:24 UTC): no turbulence, no icing, vfr; clear up to 60,000 ft, remarks: not bad for denver. At the destination end, 26 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN170035/TM 1224/FL170/TP B737/SK VFR/WX SKC/TA UNK/TB NEG/IC NEG/RM NOT BAD FOR DENVER
```
Report
a routine report filed through DEN
Where
35 nm south (170°) of DEN
Time
12:24 UTC
Height
at 17,000 ft
Aircraft
B737
Sky
vfr
Weather
clear sky
Temperature
UNK
Turbulence
none
Icing
none
Remarks
not bad for denver

1 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 8 forecast points nearest it (SFO, SAC, FAT, BIH, ELY, BCE, GJT, PUB). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
7,500 ft	230° at 17 kt	−13 kt	4 °C	133 kt	6 h 17 min	1:25 pm MDT (19:25 UTC)
9,500 ft	230° at 17 kt	−14 kt	2 °C	134 kt	6 h 14 min	1:22 pm MDT (19:22 UTC)
11,500 ft	230° at 22 kt	−17 kt	-2 °C	137 kt	6 h 06 min	1:14 pm MDT (19:14 UTC)
13,500 ft	230° at 25 kt	−19 kt	-5 °C	139 kt	6 h 01 min	1:09 pm MDT (19:09 UTC)
15,500 ft	230° at 28 kt	−22 kt	-9 °C	142 kt	5 h 53 min	1:01 pm MDT (19:01 UTC)
17,500 ft	230° at 31 kt	−24 kt	-13 °C	144 kt	5 h 48 min	12:56 pm MDT (18:56 UTC)
18,000 ft FL180	230° at 32 kt	−24 kt	-14 °C	144 kt	5 h 48 min	12:56 pm MDT (18:56 UTC)
24,000 ft FL240	240° at 37 kt	−31 kt	-23 °C	151 kt	5 h 32 min	12:40 pm MDT (18:40 UTC)
30,000 ft FL300	230° at 51 kt	−43 kt	-31 °C	163 kt	5 h 08 min	12:16 pm MDT (18:16 UTC)
34,000 ft FL340	230° at 57 kt	−46 kt	-37 °C	166 kt	5 h 02 min	12:10 pm MDT (18:10 UTC)
39,000 ft FL390	230° at 55 kt	−45 kt	-44 °C	165 kt	5 h 04 min	12:12 pm MDT (18:12 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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
SFO	used from 0 nm out; 25 nm from the line	090/9	050/12 4°	010/17 -2°	350/34 -3°	360/70 -11°	360/75 -22°	350/57 -38°	330/37 -42°	280/25 -44°
SAC	used from 50 nm out; 52 nm from the line	L/V	L/V 4°	340/9 -4°	340/22 -8°	360/71 -12°	360/82 -23°	350/58 -37°	310/30 -40°	270/25 -44°
FAT	used from 99 nm out; 71 nm from the line	140/11	180/15 3°	150/14 -3°	200/14 -6°	240/17 -16°	320/25 -23°	270/22 -31°	240/29 -37°	230/36 -44°
BIH	used from 149 nm out; 46 nm from the line		L/V	020/6 0°	140/7 -7°	210/31 -16°	230/34 -26°	220/43 -30°	220/52 -36°	220/46 -43°
ELY	used from 298 nm out; 65 nm from the line			210/34 1°	220/40 -4°	220/39 -17°	210/51 -24°	220/65 -30°	220/60 -37°	220/56 -44°
BCE	used from 448 nm out; 56 nm from the line				200/32 -2°	210/57 -15°	220/71 -22°	220/69 -30°	220/64 -38°	220/67 -44°
GJT	used from 547 nm out; 88 nm from the line			220/26 6°	230/39 0°	220/55 -13°	230/60 -23°	230/78 -31°	230/80 -35°	230/74 -44°
PUB	used from 746 nm out; 81 nm from the line			260/45 11°	240/38 6°	230/47 -8°	230/51 -19°	240/74 -29°	240/82 -35°	250/72 -48°

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
SFO San Francisco, CA	departure	VFR Sky: a few clouds at 9,000 feet	from the west (280°) at 5 knots	10+ mi	none	13 ft	5:56 am PDT (12:56 UTC)
LVK Livermore, CA	30 nm out, 3 nm west of the line, tower	VFR	calm	10+ mi	none	399 ft	12:53 UTC
CPU San Andreas, CA	90 nm out, 18 nm north of the line	VFR	calm	10+ mi	none	1,327 ft	12:55 UTC
TPH Tonopah, NV	249 nm out, 12 nm south of the line	VFR Sky: a broken layer at 5,500 feet, overcast at 7,500 feet	from the southeast (130°) at 3 knots	10+ mi	5,500 ft	5,430 ft	12:56 UTC
RIF Richfield, UT	487 nm out, 6 nm north of the line	VFR Sky: a few clouds at 5,500 feet, a broken layer at 9,500 feet	variable at 1 knots	10+ mi	9,500 ft	5,318 ft	12:54 UTC
HVE Hanksville, UT	557 nm out, 17 nm south of the line	VFR	from the southwest (220°) at 11 knots, gusting to 16	10+ mi	none	4,453 ft	12:50 UTC
GJT Grand Junction, CO	656 nm out, 21 nm north of the line, tower	VFR	from the east-southeast (110°) at 10 knots	10+ mi	none	4,861 ft	12:53 UTC
AJZ Delta, CO	676 nm out, 2 nm east of the line	reported, no category	from the northwest (310°) at 3 knots		7,000 ft	5,193 ft	12:55 UTC
AEJ Buena Vista, CO	766 nm out, 3 nm east of the line	VFR	from the east-northeast (060°) at 3 knots	10+ mi	none	7,950 ft	12:55 UTC
COS Colorado Springs, CO	destination	VFR Sky: a few clouds at 10,000 feet	from the east (090°) at 6 knots	10+ mi	none	6,187 ft	6:54 am MDT (12:54 UTC)

The highest airport on this list sits at 7,950 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At COS when you get there the forecast at the estimated arrival, 12:10 pm MDT (18:10 UTC)

Wind from the south at 15 knots, gusting to 25, visibility more than 6 miles, scattered clouds at 12,000 feet VFR

The whole forecast for COS

From Mon 6:00 am MDT (12:00 UTC): wind from the southwest at 11 knots, gusting to 22, visibility more than 6 miles, a few clouds at 20,000 feet
From Mon 11:00 am MDT (17:00 UTC): wind from the south at 15 knots, gusting to 25, visibility more than 6 miles, scattered clouds at 12,000 feet
From Mon 1:00 pm MDT (19:00 UTC): wind from the south-southwest at 20 knots, gusting to 30, visibility more than 6 miles, scattered clouds at 12,000 feet
From Mon 7:00 pm MDT (01:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, clear skies
From Mon 10:00 pm MDT (04:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for SFO, the departure

From Mon 5:00 am PDT (12:00 UTC): wind from the west at 4 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a few clouds at 9,000 feet
From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 12 knots, visibility more than 6 miles, clear skies
From Mon 8:00 pm PDT (03:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies

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

6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 16 nm from the route, 129 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 7 nm from the route, at the destination end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV

Daylight

Sunset at SFO 6:35 pm PDT (01:35 UTC), at COS 6:23 pm MDT (00:23 UTC) (civil twilight ends 6:50 pm MDT (00:50 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

Radar now, the Pacific Southwest · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: San Francisco International, City Of Colorado Springs Municipal.