Plan a flight · Sun 8:25 pm PDT (03:25 UTC)

Portland International to City Of Colorado Springs Municipal PDX → COS

891 nautical miles (1,026 statute miles) east on a straight line, true course 111°, about 095° magnetic at the departure end (variation 16E). At 120 knots that is 6 h 27 min at the quickest height in today's winds (34,000 ft, a 18-knot tailwind), arriving about 3:52 am MDT (09:52 UTC), after sunset at the destination. Right now PDX is VFR, wind from the east (100°) at 4 knots; COS is VFR, wind from the southwest (220°) at 11 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: 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

SIGMET W11W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 9:55 pm PDT (04:55 UTC). Near the route, at the destination end.
as issued
```
WSUS33 KKCI 120255
MKCW WST 120255
CONVECTIVE SIGMET 11W
VALID UNTIL 0455Z
CO NM
FROM 20WNW PUB-10ENE CIM-50WNW ABQ-30NNE DVC-20WNW PUB
AREA TS MOV FROM 22040KT. TOPS TO FL340.
```
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 168 nm of the route.
AIRMET ZULU 2C: moderate icing up to 20,000 ft. Over the route from 59 to 188 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 149 to 683 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 277 to 703 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, 347 nm along the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 366 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 357 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). Over the route from 584 to 862 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 604 to 674 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 822 to 822 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 PDX.

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

urgent B407 at 10,000 ft, 4 nm south, 7:13 pm PDT (02:13 UTC): moderate to severe turbulence. At the destination end, 4 nm south of the line.
as filed, and in English
```
COS UUA /OV 10 W COS/TM 0213/FL100/TP B407/TB MDT-SEV
```
Report
an urgent report filed through COS
Where
10 west cos
Time
02:13 UTC
Height
at 10,000 ft
Aircraft
B407
Turbulence
mdt-sev
EPIC at 31,000 ft, 49 nm northwest, 6:38 pm PDT (01:38 UTC): moderate turbulence from 30,000 ft to 31,000 ft, remarks: zse. At the departure end, 49 nm northwest of the line.
as filed, and in English
```
AST UA /OV AST070020/TM 0138/FL310/TP EPIC/TB MOD 310-300/RM ZSE
```
Report
a routine report filed through AST
Where
20 nm east (070°) of AST
Time
01:38 UTC
Height
at 31,000 ft
Aircraft
EPIC
Turbulence
moderate from 31,000 ft to 30,000 ft
Remarks
zse
B739 at 10,000 ft, 30 nm west, 6:19 pm PDT (01:19 UTC): moderate rime icing from 10,000 ft to 12,000 ft, -12 °C. At the departure end, 30 nm west of the line.
as filed, and in English
```
PDX UA /OV 30W PDX/TM 0119/FL100/TP B739/TA M12/IC MOD RIME 120-100
```
Report
a routine report filed through PDX
Where
30W pdx
Time
01:19 UTC
Height
at 10,000 ft
Aircraft
B739
Temperature
−12 °C
Icing
moderate rime from 12,000 ft to 10,000 ft
E75L at 28,000 ft, 4 nm east, 6:31 pm PDT (01:31 UTC): moderate turbulence, remarks: ZDVWC-03. 753 nm along the route, 4 nm east of the line.
as filed, and in English
```
EEO UA /OV EKR085036/TM 0131/FL280/TP E75L/TB MOD/RM ZDVWC-03
```
Report
a routine report filed through EEO
Where
36 nm east (085°) of EKR
Time
01:31 UTC
Height
at 28,000 ft
Aircraft
E75L
Turbulence
moderate
Remarks
ZDVWC-03
B738 at 23,000 ft, 44 nm northeast, 7:34 pm PDT (02:34 UTC): moderate turbulence, remarks: during the climb ZDVWC-05. 832 nm along the route, 44 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DVV270030/TM 0234/FL230/TP B738/TB MOD /RM DURC ZDVWC-05
```
Report
a routine report filed through DEN
Where
30 nm west (270°) of DVV
Time
02:34 UTC
Height
at 23,000 ft
Aircraft
B738
Turbulence
moderate
Remarks
during the climb ZDVWC-05
GLF4 at 25,000 ft, 20 nm northeast, 7:05 pm PDT (02:05 UTC): moderate turbulence, remarks: during the climb ZDVWC-05. 832 nm along the route, 20 nm northeast of the line.
as filed, and in English
```
DEN UA /OV FQF250040/TM 0205/FL250/TP GLF4/TB MOD /RM DURC ZDVWC-05
```
Report
a routine report filed through DEN
Where
40 nm west (250°) of FQF
Time
02:05 UTC
Height
at 25,000 ft
Aircraft
GLF4
Turbulence
moderate
Remarks
during the climb ZDVWC-05
BCS1 at 24,000 ft, 44 nm northeast, 6:30 pm PDT (01:30 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the climb ZDVWC-05. 832 nm along the route, 44 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DVV270030/TM 0130/FL240/TP BCS1/TB MOD 220-240/RM DURC ZDVWC-05
```
Report
a routine report filed through DEN
Where
30 nm west (270°) of DVV
Time
01:30 UTC
Height
at 24,000 ft
Aircraft
BCS1
Turbulence
moderate from 22,000 ft to 24,000 ft
Remarks
during the climb ZDVWC-05
B738 at 18,000 ft, 4 nm southwest, 7:02 pm PDT (02:02 UTC): moderate chop turbulence from 18,000 ft to 25,000 ft, remarks: during the climb ZDVWC-41. At the destination end, 4 nm southwest of the line.
as filed, and in English
```
COS UA /OV BRK270030/TM 0202/FL180/TP B738/TB MOD CHOP 180-250/RM DURC ZDVWC-41
```
Report
a routine report filed through COS
Where
30 nm west (270°) of BRK
Time
02:02 UTC
Height
at 18,000 ft
Aircraft
B738
Turbulence
moderate chop from 18,000 ft to 25,000 ft
Remarks
during the climb ZDVWC-41
BE9L at 24,500 ft, 47 nm southwest, 7:21 pm PDT (02:21 UTC): moderate turbulence, remarks: ZDVWC-41. At the destination end, 47 nm southwest of the line.
as filed, and in English
```
PUB UA /OV PUB250040/TM 0221/FL245/TP BE9L/TB OCNL MOD/RM ZDVWC-41
```
Report
a routine report filed through PUB
Where
40 nm west (250°) of PUB
Time
02:21 UTC
Height
at 24,500 ft
Aircraft
BE9L
Turbulence
occasional moderate
Remarks
ZDVWC-41
PC12 at 14,000 ft, 21 nm southwest, 7:13 pm PDT (02:13 UTC): light turbulence up to 21,000 ft, light rime icing from 10,000 ft to 14,000 ft, -10 °C. 347 nm along the route, 21 nm southwest of the line.
as filed, and in English
```
BOI UA /OV BOI117049/TM 0213/FL140/TP PC12/TA M10/TB CONS LGT 210 BLO/IC LGT RIME 140-100 /ZLC
```
Report
a routine report filed through BOI
Where
49 nm southeast (117°) of BOI
Time
02:13 UTC
Height
at 14,000 ft
Aircraft
PC12
Temperature
−10 °C
Turbulence
continuous light at 21,000 ft below
Icing
light rime from 14,000 ft to 10,000 ft zlc
E175 at 5,700 ft, 29 nm northeast, 7:59 pm PDT (02:59 UTC): a broken layer above 5,700 ft, remarks: during the descent runway 31. 376 nm along the route, 29 nm northeast of the line.
as filed, and in English
```
SUN UA /OV KSUN/TM 0259/FL057/TP E175/SK BKN057-TOPUNKN/RM DURD RY31
```
Report
a routine report filed through SUN
Where
over KSUN
Time
02:59 UTC
Height
at 5,700 ft
Aircraft
E175
Sky
a broken layer from 5,700 ft, tops unknown
Remarks
during the descent runway 31
PC12 at 6,000 ft, 29 nm northeast, 6:09 pm PDT (01:09 UTC): scattered clouds up to 6,000 ft, remarks: multiple scattered layers during the descent runway 31. 376 nm along the route, 29 nm northeast of the line.
as filed, and in English
```
SUN UA /OV KSUN/TM 0109/FL060/TP PC12/SK SCT-TOP060/WX FV05SM/RM MULTIPLE SCT LAYERS DURD RY31
```
Report
a routine report filed through SUN
Where
over KSUN
Time
01:09 UTC
Height
at 6,000 ft
Aircraft
PC12
Sky
scattered clouds, tops 6,000 ft
Weather
flight visibility 5 miles
Remarks
multiple scattered layers during the descent runway 31
UAL2395 at 37,000 ft, 39 nm northeast, 5:58 pm PDT (00:58 UTC): no turbulence, wind 240° at 70 knots. 634 nm along the route, 39 nm northeast of the line.
as filed, and in English
```
ARP UAL2395 4135N 10900W 0058 F370 240/070KT TB NONE SK CLEAR IC NONE
```
Report
a routine report filed through ARP
CL35 at 41,000 ft, 18 nm northeast, 7:40 pm PDT (02:40 UTC): remarks: mtw +/-50FT a 15-knot loss of airspeed ZDVWC-05. 782 nm along the route, 18 nm northeast of the line.
as filed, and in English
```
EGE UA /OV RLG/TM 0240/FL410/TP CL35/RM MTW +/-50FT +/-15KT ZDVWC-05
```
Report
a routine report filed through EGE
Where
over RLG
Time
02:40 UTC
Height
at 41,000 ft
Aircraft
CL35
Remarks
mtw +/-50FT a 15-knot loss of airspeed ZDVWC-05

5 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 9 forecast points nearest it (PDX, RDM, BOI, PIH, SLC, RKS, GJT, DEN, 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
5,500 ft	010° at 5 kt	−1 kt	1 °C	121 kt	7 h 22 min	4:47 am MDT (10:47 UTC)
7,500 ft	220° at 9 kt	−1 kt	2 °C	121 kt	7 h 22 min	4:47 am MDT (10:47 UTC)
9,500 ft	230° at 10 kt	−3 kt	-1 °C	123 kt	7 h 15 min	4:40 am MDT (10:40 UTC)
11,500 ft	240° at 15 kt	−7 kt	-4 °C	127 kt	7 h 01 min	4:26 am MDT (10:26 UTC)
13,500 ft	240° at 18 kt	−7 kt	-7 °C	127 kt	7 h 01 min	4:26 am MDT (10:26 UTC)
15,500 ft	230° at 21 kt	−7 kt	-10 °C	127 kt	7 h 01 min	4:26 am MDT (10:26 UTC)
17,500 ft	230° at 24 kt	−7 kt	-14 °C	127 kt	7 h 01 min	4:26 am MDT (10:26 UTC)
18,000 ft FL180	230° at 25 kt	−7 kt	-15 °C	127 kt	7 h 01 min	4:26 am MDT (10:26 UTC)
24,000 ft FL240	230° at 32 kt	−9 kt	-25 °C	129 kt	6 h 54 min	4:19 am MDT (10:19 UTC)
30,000 ft FL300	240° at 36 kt	−15 kt	-31 °C	135 kt	6 h 36 min	4:01 am MDT (10:01 UTC)
34,000 ft FL340	230° at 43 kt	−18 kt	-35 °C	138 kt	6 h 27 min	3:52 am MDT (09:52 UTC)
39,000 ft FL390	230° at 45 kt	−17 kt	-42 °C	137 kt	6 h 30 min	3:55 am MDT (09:55 UTC)

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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
PDX	used from 0 nm out; 25 nm from the line	L/V	030/7 1°	020/12 -6°	020/29 -9°	010/69 -16°	010/81 -25°	360/83 -40°	360/67 -46°	320/29 -42°
RDM	used from 50 nm out; 54 nm from the line		040/17 -1°	030/31 -8°	010/29 -12°	010/61 -19°	360/95 -25°	360/82 -36°	360/40 -37°	310/19 -40°
BOI	used from 198 nm out; 76 nm from the line		300/7 2°	280/5 -4°	210/16 -9°	210/60 -20°	210/75 -29°	210/63 -32°	220/64 -32°	220/54 -39°
PIH	used from 396 nm out; 48 nm from the line		L/V	240/13 1°	240/15 -3°	210/42 -15°	200/70 -25°	220/74 -29°	220/71 -36°	220/62 -43°
SLC	used from 545 nm out; 74 nm from the line		200/5	230/8 2°	220/20 -2°	210/40 -12°	190/53 -25°	210/62 -30°	220/69 -34°	220/64 -43°
RKS	used from 594 nm out; 41 nm from the line			200/41	220/44 1°	220/35 -11°	220/46 -24°	210/53 -27°	220/62 -35°	230/61 -44°
GJT	used from 693 nm out; 79 nm from the line			210/43 7°	230/45 1°	220/49 -12°	220/62 -22°	220/59 -28°	230/60 -33°	220/55 -45°
DEN	used from 792 nm out; 68 nm from the line			240/21 14°	250/44 6°	220/49 -8°	220/49 -21°	230/54 -30°	240/57 -35°	240/49 -45°
PUB	used from 842 nm out; 54 nm from the line			230/25 13°	230/32 6°	220/44 -8°	230/49 -21°	240/70 -28°	240/67 -34°	240/58 -46°

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
PDX Portland, OR	departure	VFR Sky: a few clouds at 5,000 feet, a few clouds at 7,000 feet, a broken layer at 10,000 feet	from the east (100°) at 4 knots	10+ mi	10,000 ft	30 ft	7:53 pm PDT (02:53 UTC)
CZK Cascade Locks, OR	30 nm out, 16 nm north of the line	no report just now				151 ft
GCD John Day, OR	168 nm out, 8 nm south of the line	VFR Sky: scattered clouds at 3,000 feet, overcast at 4,100 feet	from the north-northwest (340°) at 6 knots	10+ mi	4,100 ft	3,702 ft	03:15 UTC
ONO Ontario, OR	258 nm out, 6 nm north of the line	VFR Sky: overcast at 7,500 feet	from the north-northwest (330°) at 19 knots, gusting to 28	10+ mi	7,500 ft	2,193 ft	02:53 UTC
BOI Boise, ID	297 nm out, 5 nm south of the line, tower	VFR	variable at 3 knots	10+ mi	none	2,871 ft	02:53 UTC
BYI Burley, ID	426 nm out, 13 nm southwest of the line	VFR Sky: a few clouds at 3,400 feet, a broken layer at 5,000 feet, overcast at 6,000 feet	from the south (170°) at 5 knots	10+ mi	5,000 ft	4,153 ft	02:53 UTC
MLD Malad City, ID	495 nm out, 5 nm west of the line	no report just now				4,503 ft
FBR Fort Bridger, WY	584 nm out, 4 nm south of the line	VFR Sky: overcast at 4,800 feet Weather: rain	from the west (270°) at 14 knots, gusting to 22	10+ mi	4,800 ft	7,038 ft	03:15 UTC
EGE Eagle, CO	773 nm out, 13 nm south of the line, tower	VFR	from the west (280°) at 5 knots	10+ mi	none	6,547 ft	02:56 UTC
LXV Leadville, CO	812 nm out, 20 nm southwest of the line	VFR Sky: a few clouds at 3,600 feet, a few clouds at 4,400 feet	from the south-southeast (160°) at 11 knots, gusting to 20	10+ mi	none	9,933 ft	02:53 UTC
COS Colorado Springs, CO	destination	VFR Sky: scattered clouds at 12,000 feet, a broken layer at 16,000 feet, a broken layer at 20,000 feet	from the southwest (220°) at 11 knots	10+ mi	16,000 ft	6,187 ft	8:54 pm MDT (02:54 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 COS when you get there the forecast at the estimated arrival, 3:52 am MDT (09:52 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 VFR

The whole forecast for COS

From Sun 8:00 pm MDT (02:00 UTC): wind from the west-southwest at 15 knots, gusting to 25, visibility more than 6 miles, a broken layer at 10,000 feet, a broken layer at 20,000 feet
At times between Sun 8:00 pm MDT (02:00 UTC) and 10:00 pm MDT (04:00 UTC): wind from the west-southwest at 25 knots, gusting to 35, visibility more than 6 miles, a broken layer at 9,000 feet
From Sun 10:00 pm MDT (04:00 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

The forecast for PDX, the departure

From Sun 8:00 pm PDT (03:00 UTC): wind from the east at 5 knots, visibility more than 6 miles, scattered clouds at 5,000 feet

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 destination end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
6/8770 COLORADO SPRINGS, CO, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 2 nm from the route, at the destination end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 12 October · ZDV

Daylight

Sunset at PDX 6:30 pm PDT (01:30 UTC), at COS 6:25 pm MDT (00:25 UTC) (civil twilight ends 6:51 pm MDT (00:51 UTC)). At 120 knots the arrival at COS is before sunrise there (7:04 am MDT (13:04 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 Northwest · loop National Weather Service

Radar now, the northern Rockies · 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: Portland International, City Of Colorado Springs Municipal.