Plan a flight · Mon 3:00 am MDT (09:00 UTC)

City Of Colorado Springs Municipal to Portland International COS → PDX

891 nautical miles (1,026 statute miles) northwest on a straight line, true course 303°, about 295° magnetic at the departure end (variation 8E). At 120 knots that is 7 h 37 min at the quickest height in today's winds (4,500 ft, a 3-knot headwind), arriving about 9:37 am PDT (16:37 UTC). Right now COS is VFR, wind from the south (180°) at 11 knots; PDX is VFR, wind calm. 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: 4 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 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 first 198 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 42,000 ft. Over the first 297 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 366 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 99 to 753 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 109 to 535 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 515 to 881 nm out.
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, 545 nm along 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 COS.

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

A321 at 31,000 ft, 9 nm north, 12:41 am MDT (06:41 UTC): moderate turbulence, remarks: mtw +/-15KT zdvwc. At the departure end, 9 nm north of the line.
as filed, and in English
```
COS UA /OV BRK/TM 0641/FL310/TP A321/TB MOD/RM MTW +/-15KT. ZDVWC
```
Report
a routine report filed through COS
Where
over BRK
Time
06:41 UTC
Height
at 31,000 ft
Aircraft
A321
Turbulence
moderate
Remarks
mtw +/-15KT zdvwc
A21N at 33,000 ft, 9 nm north, 12:59 am MDT (06:59 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. At the departure end, 9 nm north of the line.
as filed, and in English
```
COS UA /OV BRK/TM 0659/FL330/TP A21N/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
```
Report
a routine report filed through COS
Where
over BRK
Time
06:59 UTC
Height
at 33,000 ft
Aircraft
A21N
Turbulence
light chop
Remarks
mtw a 10-knot loss of airspeed 100FT zdvwc
A320 at 31,000 ft, 42 nm southwest, 12:58 am MDT (06:58 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. At the departure end, 42 nm southwest of the line.
as filed, and in English
```
PUB UA /OV PUB260040/TM 0658/FL310/TP A320/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
```
Report
a routine report filed through PUB
Where
40 nm west (260°) of PUB
Time
06:58 UTC
Height
at 31,000 ft
Aircraft
A320
Turbulence
light chop
Remarks
mtw a 10-knot loss of airspeed 100FT zdvwc
B38M at 37,000 ft, 33 nm southwest, 1:42 am MDT (07:42 UTC): light chop turbulence, remarks: mtw +/-7KT zdvwc. At the departure end, 33 nm southwest of the line.
as filed, and in English
```
PUB UA /OV PUB280055/TM 0742/FL370/TP B38M/TB LGT CHOP/RM MTW +/-7KT. ZDVWC
```
Report
a routine report filed through PUB
Where
55 nm west (280°) of PUB
Time
07:42 UTC
Height
at 37,000 ft
Aircraft
B38M
Turbulence
light chop
Remarks
mtw +/-7KT zdvwc
B38M at 22,000 ft, 7 nm southwest, 2:14 am MDT (08:14 UTC): no turbulence, remarks: zdvwc. 40 nm along the route, 7 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DEN216059/TM 0814/FL220/TP B38M/TB NEG/RM ZDVWC
```
Report
a routine report filed through DEN
Where
59 nm southwest (216°) of DEN
Time
08:14 UTC
Height
at 22,000 ft
Aircraft
B38M
Turbulence
none
Remarks
zdvwc
CRJ2 at 22,000 ft, 7 nm south, 12:35 am MDT (06:35 UTC): no turbulence up to 26,000 ft, no icing, clear from 22,000 ft to 60,000 ft, remarks: during the descent ZDVWC-26. 50 nm along the route, 7 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN220060/TM 0635/FL220/TP CRJ2/SK SKC/TB NEG BLO 260/IC NEG/RM DURD/ ZDVWC-26
```
Report
a routine report filed through DEN
Where
60 nm southwest (220°) of DEN
Time
06:35 UTC
Height
at 22,000 ft
Aircraft
CRJ2
Sky
clear
Turbulence
no below 26,000 ft
Icing
none
Remarks
during the descent ZDVWC-26
B738 at 23,000 ft, 4 nm south, 12:23 am MDT (06:23 UTC): no turbulence from 23,000 ft to 26,000 ft, clear from 23,000 ft to 60,000 ft, remarks: during the descent sskii star ZDVWC-06. 59 nm along the route, 4 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN230060/TM 0623/FL230/TP B738/SK SKC/TB NEG 230-260/RM DURD SSKII STAR. ZDVWC-06
```
Report
a routine report filed through DEN
Where
60 nm southwest (230°) of DEN
Time
06:23 UTC
Height
at 23,000 ft
Aircraft
B738
Sky
clear
Turbulence
no from 23,000 ft to 26,000 ft
Remarks
during the descent sskii star ZDVWC-06
A20N at 25,000 ft, 20 nm north, 12:19 am MDT (06:19 UTC): light chop turbulence up to 26,000 ft, remarks: during the climb ZDVWC-06. 59 nm along the route, 20 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN250045/TM 0619/FL250/TP A20N/TB OCNL LGT CHOP BLO 260/RM DURC. ZDVWC-06
```
Report
a routine report filed through DEN
Where
45 nm west (250°) of DEN
Time
06:19 UTC
Height
at 25,000 ft
Aircraft
A20N
Turbulence
occasional light chop below 26,000 ft
Remarks
during the climb ZDVWC-06

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 westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 9 forecast points nearest it (PUB, DEN, GJT, RKS, SLC, PIH, BOI, RDM, PDX). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
4,500 ft	350° at 6 kt	+3 kt	0 °C	117 kt	7 h 37 min	9:37 am PDT (16:37 UTC)
6,500 ft	350° at 6 kt	+3 kt	-1 °C	117 kt	7 h 37 min	9:37 am PDT (16:37 UTC)
8,500 ft	260° at 6 kt	+4 kt	-1 °C	116 kt	7 h 41 min	9:41 am PDT (16:41 UTC)
10,500 ft	240° at 9 kt	+4 kt	-3 °C	116 kt	7 h 41 min	9:41 am PDT (16:41 UTC)
12,500 ft	230° at 14 kt	+5 kt	-6 °C	115 kt	7 h 45 min	9:45 am PDT (16:45 UTC)
14,500 ft	230° at 18 kt	+6 kt	-9 °C	114 kt	7 h 49 min	9:49 am PDT (16:49 UTC)
16,500 ft	230° at 23 kt	+7 kt	-13 °C	113 kt	7 h 53 min	9:53 am PDT (16:53 UTC)
18,000 ft FL180	230° at 26 kt	+8 kt	-15 °C	112 kt	7 h 57 min	9:57 am PDT (16:57 UTC)
24,000 ft FL240	230° at 27 kt	+9 kt	-26 °C	111 kt	8 h 02 min	10:02 am PDT (17:02 UTC)
30,000 ft FL300	240° at 36 kt	+15 kt	-33 °C	105 kt	8 h 29 min	10:29 am PDT (17:29 UTC)
34,000 ft FL340	240° at 43 kt	+20 kt	-37 °C	100 kt	8 h 55 min	10:55 am PDT (17:55 UTC)
39,000 ft FL390	230° at 42 kt	+15 kt	-43 °C	105 kt	8 h 29 min	10:29 am PDT (17:29 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
PUB	used from 0 nm out; 54 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°
DEN	used from 50 nm out; 68 nm from the line			270/24 11°	230/13 5°	230/48 -8°	230/46 -20°	230/63 -30°	240/78 -36°	240/78 -48°
GJT	used from 99 nm out; 86 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°
RKS	used from 198 nm out; 52 nm from the line			250/9	230/21 -1°	210/43 -14°	220/59 -23°	220/55 -32°	220/53 -35°	220/48 -44°
SLC	used from 297 nm out; 74 nm from the line		200/16	210/23 4°	220/34 -3°	210/40 -16°	220/66 -23°	220/64 -31°	220/57 -36°	220/50 -43°
PIH	used from 347 nm out; 70 nm from the line		070/8	150/19 1°	180/32 -4°	210/44 -17°	210/37 -28°	210/74 -31°	220/68 -35°	220/60 -43°
BOI	used from 495 nm out; 73 nm from the line		320/11 1°	280/8 -5°	220/14 -11°	200/60 -19°	190/66 -31°	210/46 -32°	220/50 -33°	220/43 -39°
RDM	used from 693 nm out; 101 nm from the line		360/14 -2°	020/25 -8°	360/34 -13°	360/75 -16°	360/88 -25°	360/80 -39°	350/47 -42°	360/11 -43°
PDX	used from 842 nm out; 25 nm from the line	L/V	340/8 0°	360/12 -6°	010/30 -7°	360/62 -15°	360/67 -26°	360/68 -40°	350/61 -48°	340/26 -44°

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
COS Colorado Springs, CO	departure	VFR Sky: scattered clouds at 20,000 feet	from the south (180°) at 11 knots	10+ mi	none	6,187 ft	2:54 am MDT (08:54 UTC)
LXV Leadville, CO	79 nm out, 20 nm southwest of the line	VFR Sky: a few clouds at 7,000 feet	from the south (190°) at 10 knots	10+ mi	none	9,933 ft	08:53 UTC
EGE Eagle, CO	119 nm out, 13 nm south of the line, tower	VFR Sky: scattered clouds at 7,000 feet, overcast at 9,000 feet	from the west (270°) at 4 knots	10+ mi	9,000 ft	6,547 ft	08:56 UTC
FBR Fort Bridger, WY	307 nm out, 4 nm south of the line	VFR Sky: a broken layer at 11,000 feet	calm	10+ mi	11,000 ft	7,038 ft	08:55 UTC
MLD Malad City, ID	396 nm out, 5 nm west of the line	no report just now				4,503 ft
BYI Burley, ID	466 nm out, 13 nm southwest of the line	marginal VFR Sky: a few clouds at 800 feet, overcast at 2,100 feet Weather: rain, mist	from the southwest (220°) at 9 knots	6 mi	2,100 ft	4,153 ft	08:53 UTC
BOI Boise, ID	594 nm out, 5 nm south of the line, tower	VFR Sky: scattered clouds at 10,000 feet	from the west-northwest (290°) at 6 knots	10+ mi	none	2,871 ft	08:53 UTC
ONO Ontario, OR	634 nm out, 6 nm north of the line	VFR	from the west-northwest (290°) at 9 knots	10+ mi	none	2,193 ft	08:53 UTC
GCD John Day, OR	723 nm out, 8 nm south of the line	VFR Sky: a broken layer at 3,400 feet, overcast at 4,300 feet	calm	10+ mi	3,400 ft	3,702 ft	08:35 UTC
CZK Cascade Locks, OR	862 nm out, 16 nm north of the line	no report just now				151 ft
PDX Portland, OR	destination	VFR	calm	10+ mi	none	30 ft	1:53 am PDT (08:53 UTC)

The highest airport on this list sits at 9,933 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At PDX when you get there the forecast at the estimated arrival, 9:37 am PDT (16:37 UTC)

Wind light and variable, visibility more than 6 miles, clear skies VFR

The whole forecast for PDX

From Sun 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 3:00 pm PDT (22:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, clear skies

The forecast for COS, the departure

From Mon 12:00 am MDT (06:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 20,000 feet
From Mon 6:00 am MDT (12:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, clear skies
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

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

6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 8 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV

Daylight

Sunset at COS 6:23 pm MDT (00:23 UTC), at PDX 6:28 pm PDT (01:28 UTC) (civil twilight ends 6:58 pm PDT (01:58 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 southern Rockies · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar now, the Pacific Northwest · 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: City Of Colorado Springs Municipal, Portland International.