Plan a flight · Sun 8:03 pm CDT (01:03 UTC)

St. Louis Lambert International to Salt Lake City International STL → SLC

1,002 nautical miles (1,153 statute miles) west on a straight line, true course 284°, about 285° magnetic at the departure end (variation 1W). At 120 knots that is 8 h 52 min at the quickest height in today's winds (4,500 ft, a 7-knot headwind), arriving about 3:55 am MDT (09:55 UTC), after sunset at the destination. Right now STL is VFR, wind from the southeast (130°) at 7 knots; SLC is VFR, wind from the east-northeast (060°) at 5 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: 1,969 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 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 437 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 347 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 268 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 last 248 nm of the route.
AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 824 to 863 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 119 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 STL.

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

urgent BCS3 at 5,400 ft, 34 nm south, 6:35 pm CDT (23:35 UTC): remarks: wind shear 10 knots gain 1000 above ground on final. At the destination end, 34 nm south of the line.
as filed, and in English
```
PVU UUA /OV PVU310001/TM 2335/FL054/TP BCS3/RM WIND SHEAR 10 KT GAIN 1000 AGL ON FINAL
```
Report
an urgent report filed through PVU
Where
1 nm northwest (310°) of PVU
Time
23:35 UTC
Height
at 5,400 ft
Aircraft
BCS3
Remarks
wind shear 10 knots gain 1000 above ground on final
UAL1340 at 40,000 ft, 31 nm north, 7:18 pm CDT (00:18 UTC): moderate chop turbulence, wind 244° at 70 knots. 496 nm along the route, 31 nm north of the line.
as filed, and in English
```
ARP UAL1340 4046N 10049W 0018 F400 244/070KT TB OCNL MOD CHOP IC
```
Report
a routine report filed through ARP
UAL2199 at 35,000 ft, 23 nm south, 6:31 pm CDT (23:31 UTC): moderate chop turbulence, wind 247° at 79 knots. 615 nm along the route, 23 nm south of the line.
as filed, and in English
```
ARP UAL2199 4007N 10337W 2331 F350 247/079KT TB MOD CHOP IC
```
Report
a routine report filed through ARP
A21N at 32,000 ft, 15 nm south, 6:42 pm CDT (23:42 UTC): moderate chop turbulence, remarks: ZDVWC-61. 625 nm along the route, 15 nm south of the line.
as filed, and in English
```
AKO UA /OV AKO270030/TM 2342/FL320/TP A21N/TB INTMT MOD CHOP/RM ZDVWC-61
```
Report
a routine report filed through AKO
Where
30 nm west (270°) of AKO
Time
23:42 UTC
Height
at 32,000 ft
Aircraft
A21N
Turbulence
intermittent moderate chop
Remarks
ZDVWC-61
BCS3 at 24,000 ft, 9 nm south, 6:28 pm CDT (23:28 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent. 695 nm along the route, 9 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN320045/TM 2328/FL240/TP BCS3/TB MOD 240-220/RM DURD
```
Report
a routine report filed through DEN
Where
45 nm northwest (320°) of DEN
Time
23:28 UTC
Height
at 24,000 ft
Aircraft
BCS3
Turbulence
moderate from 24,000 ft to 22,000 ft
Remarks
during the descent
CRJ2 at 19,000 ft, 10 nm northeast, 7:47 pm CDT (00:47 UTC): moderate chop turbulence, remarks: ZDVWC-13. 734 nm along the route, 10 nm northeast of the line.
as filed, and in English
```
EGE UA /OV RLG010052/TM 0047/FL190/TP CRJ2/TB COSN MOD CHOP/RM ZDVWC-13
```
Report
a routine report filed through EGE
Where
52 nm north (010°) of RLG
Time
00:47 UTC
Height
at 19,000 ft
Aircraft
CRJ2
Turbulence
cosn moderate chop
Remarks
ZDVWC-13
B39M at 32,000 ft, 21 nm south, 6:58 pm CDT (23:58 UTC): moderate chop turbulence, no icing, remarks: moderate mtw a 30-knot loss of airspeed ZDVWC-14. 744 nm along the route, 21 nm south of the line.
as filed, and in English
```
EEO UA /OV EKR069073/TM 2358/FL320/TP B39M/TB OCNL MOD CHOP/IC NEG/RM MOD MTW +/-30KT ZDVWC-14
```
Report
a routine report filed through EEO
Where
73 nm east (069°) of EKR
Time
23:58 UTC
Height
at 32,000 ft
Aircraft
B39M
Turbulence
occasional moderate chop
Icing
none
Remarks
moderate mtw a 30-knot loss of airspeed ZDVWC-14
A21N at 33,000 ft, 12 nm south, 5:35 pm CDT (22:35 UTC): moderate turbulence, remarks: mountain wave +25-30KTS. 794 nm along the route, 12 nm south of the line.
as filed, and in English
```
HDN UA /OV CHE/TM 2235/FL330/TP A21N/TB MOD/RM MTN WAVE +25-30KTS
```
Report
a routine report filed through HDN
Where
over CHE
Time
22:35 UTC
Height
at 33,000 ft
Aircraft
A21N
Turbulence
moderate
Remarks
mountain wave +25-30KTS
A339 at 16,000 ft, 29 nm north, 6:35 pm CDT (23:35 UTC): moderate chop turbulence up to 16,000 ft, remarks: during the climb zlc. At the destination end, 29 nm north of the line.
as filed, and in English
```
OGD UA /OV OGD063012/TM 2335/FL160/TP A339/TB MOD CHOP 160 BLO/RM DURC /ZLC
```
Report
a routine report filed through OGD
Where
12 nm northeast (063°) of OGD
Time
23:35 UTC
Height
at 16,000 ft
Aircraft
A339
Turbulence
moderate chop at 16,000 ft below
Remarks
during the climb zlc
PA44 at 6,000 ft, 33 nm south, 6:25 pm CDT (23:25 UTC): moderate turbulence, remarks: runway in sight at at 6,400 ft. At the destination end, 33 nm south of the line.
as filed, and in English
```
PVU UA /OV PVU310002/TM 2325/FL060/TP PA44/TB MOD /RM RWY IN SIGHT AT 064
```
Report
a routine report filed through PVU
Where
2 nm northwest (310°) of PVU
Time
23:25 UTC
Height
at 6,000 ft
Aircraft
PA44
Turbulence
moderate
Remarks
runway in sight at at 6,400 ft
E75L at 12,500 ft, 18 nm north, 5:25 pm CDT (22:25 UTC): moderate turbulence. At the destination end, 18 nm north of the line.
as filed, and in English
```
HIF UA /OV HIF103005/TM 2225/FL125/TP E75L/TB MOD /ZLC
```
Report
a routine report filed through HIF
Where
5 nm east (103°) of HIF
Time
22:25 UTC
Height
at 12,500 ft
Aircraft
E75L
Turbulence
moderate zlc
E75L at 14,500 ft, 25 nm north, 6:05 pm CDT (23:05 UTC): moderate turbulence up to 15,800 ft, heavy rain, remarks: during the climb zlc. At the destination end, 25 nm north of the line.
as filed, and in English
```
OGD UA /OV OGD086008/TM 2305/FL145/TP E75L/WX +RA/TB MOD 158 BLO/RM DURC /ZLC
```
Report
a routine report filed through OGD
Where
8 nm east (086°) of OGD
Time
23:05 UTC
Height
at 14,500 ft
Aircraft
E75L
Weather
heavy rain
Turbulence
moderate at 15,800 ft below
Remarks
during the climb zlc
B739 at 11,000 ft, 14 nm west, 5:40 pm CDT (22:40 UTC): moderate turbulence, no icing, -4 °C, wind 180° at 40 knots, remarks: during the descent. At the destination end, 14 nm west of the line.
as filed, and in English
```
SLC UA /OV TCH240014/TM 2240/FL110/TP B739/TA M04/WV 180040/TB CONT MOD /IC NEG/RM DURD
```
Report
a routine report filed through SLC
Where
14 nm southwest (240°) of TCH
Time
22:40 UTC
Height
at 11,000 ft
Aircraft
B739
Temperature
−4 °C
Wind
from 180° at 40 knots
Turbulence
continuous moderate
Icing
none
Remarks
during the descent
B789 at 40,000 ft, 32 nm north, 7:22 pm CDT (00:22 UTC): light to moderate clear-air turbulence, remarks: zdvwc. 516 nm along the route, 32 nm north of the line.
as filed, and in English
```
SNY UA /OV SNY088081/TM 0022/FL400/TP B789/TB OCNL LGT-MOD CAT/RM ZDVWC
```
Report
a routine report filed through SNY
Where
81 nm east (088°) of SNY
Time
00:22 UTC
Height
at 40,000 ft
Aircraft
B789
Turbulence
occasional light to moderate clear-air turbulence
Remarks
zdvwc

16 more routine reports are on the map.

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 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 (STL, COU, MKC, SLN, GRI, GLD, DEN, RKS, SLC). 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	210° at 24 kt	+7 kt	19 °C	113 kt	8 h 52 min	3:55 am MDT (09:55 UTC)
6,500 ft	220° at 24 kt	+11 kt	16 °C	109 kt	9 h 12 min	4:15 am MDT (10:15 UTC)
8,500 ft	210° at 27 kt	+12 kt	14 °C	108 kt	9 h 17 min	4:20 am MDT (10:20 UTC)
10,500 ft	220° at 28 kt	+17 kt	10 °C	103 kt	9 h 44 min	4:47 am MDT (10:47 UTC)
12,500 ft	230° at 30 kt	+21 kt	5 °C	99 kt	10 h 07 min	5:10 am MDT (11:10 UTC)
14,500 ft	230° at 31 kt	+23 kt	1 °C	97 kt	10 h 20 min	5:23 am MDT (11:23 UTC)
16,500 ft	240° at 32 kt	+26 kt	-4 °C	94 kt	10 h 40 min	5:43 am MDT (11:43 UTC)
18,000 ft FL180	240° at 33 kt	+27 kt	-7 °C	93 kt	10 h 46 min	5:49 am MDT (11:49 UTC)
24,000 ft FL240	230° at 34 kt	+27 kt	-19 °C	93 kt	10 h 46 min	5:49 am MDT (11:49 UTC)
30,000 ft FL300	240° at 42 kt	+36 kt	-32 °C	84 kt	11 h 56 min	6:59 am MDT (12:59 UTC)
34,000 ft FL340	250° at 52 kt	+49 kt	-39 °C	71 kt	14 h 07 min	9:10 am MDT (15:10 UTC)
39,000 ft FL390	260° at 58 kt	+56 kt	-49 °C	64 kt	15 h 39 min	10:42 am MDT (16:42 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
STL	used from 0 nm out; 25 nm from the line	210/13	260/16 17°	270/21 10°	280/24 5°	310/20 -7°	320/22 -18°	320/44 -33°	320/59 -43°	310/69 -51°
COU	used from 50 nm out; 19 nm from the line	210/16	220/19 15°	240/33 10°	250/29 7°	280/21 -6°	280/19 -18°	300/34 -31°	300/40 -42°	300/60 -52°
MKC	used from 149 nm out; 32 nm from the line	200/28	220/30 16°	270/20 11°	280/22 7°	260/27 -6°	270/27 -18°	280/38 -32°	270/38 -40°	280/50 -52°
SLN	used from 298 nm out; 67 nm from the line	190/37	220/39 20°	240/31 14°	250/24 7°	260/25 -7°	250/26 -17°	250/44 -31°	260/47 -40°	260/47 -50°
GRI	used from 347 nm out; 60 nm from the line		210/31 19°	240/21 14°	240/17 6°	260/27 -7°	260/34 -18°	240/45 -32°	250/56 -40°	260/62 -51°
GLD	used from 446 nm out; 79 nm from the line		190/29	200/30 15°	240/23 8°	250/39 -7°	230/39 -19°	230/57 -31°	240/67 -39°	250/62 -49°
DEN	used from 595 nm out; 62 nm from the line			190/31 16°	210/32 7°	240/41 -8°	230/47 -21°	240/56 -32°	250/65 -37°	250/61 -47°
RKS	used from 794 nm out; 73 nm from the line			190/43	210/65 3°	210/57 -9°	210/56 -21°	210/47 -33°	230/63 -37°	240/77 -46°
SLC	used from 943 nm out; 35 nm from the line		280/8	210/39 5°	210/52 -1°	200/50 -11°	200/56 -23°	220/61 -28°	230/73 -37°	230/73 -45°

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
STL St Louis, MO	departure	VFR Sky: a few clouds at 25,000 feet	from the southeast (130°) at 7 knots	10+ mi	none	617 ft	7:51 pm CDT (00:51 UTC)
COU Columbia, MO	89 nm out, 16 nm south of the line, tower	VFR	from the south (180°) at 4 knots	10+ mi	none	889 ft	00:54 UTC
MKC Kansas City, MO	198 nm out, 21 nm south of the line, tower	VFR	from the south (170°) at 11 knots, gusting to 19	10+ mi	none	756 ft	00:54 UTC
MCI Kansas City, MO	208 nm out, 12 nm south of the line, tower	VFR	from the south (180°) at 10 knots	10+ mi	none	1,027 ft	00:53 UTC
RPB Belleville, KS	347 nm out, 6 nm south of the line	no report just now				1,538 ft
MCK Mc Cook, NE	486 nm out, 5 nm southeast of the line	VFR	from the south (170°) at 9 knots	10+ mi	none	2,582 ft	00:53 UTC
IML Imperial, NE	526 nm out, 12 nm north of the line	VFR	variable at 3 knots	10+ mi	none	3,276 ft	00:53 UTC
FNL Fort Collins/Loveland, CO	685 nm out, 8 nm south of the line, tower	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	5,020 ft	00:56 UTC
SBS Steamboat Springs, CO	764 nm out, 11 nm southwest of the line	VFR Sky: scattered clouds at 12,000 feet	from the southeast (130°) at 8 knots	10+ mi	none	6,882 ft	00:55 UTC
CAG Craig, CO	804 nm out, 14 nm south of the line	VFR Sky: a few clouds at 1,900 feet, a broken layer at 5,000 feet, overcast at 10,000 feet Weather: light rain	from the south (190°) at 10 knots, gusting to 22	7 mi	5,000 ft	6,197 ft	00:53 UTC
HCR Heber, UT	972 nm out, 19 nm south of the line	VFR Sky: a broken layer at 5,500 feet, overcast at 7,500 feet Weather: light rain	from the south-southwest (210°) at 12 knots, gusting to 17	8 mi	5,500 ft	5,636 ft	23:35 UTC
SLC Salt Lake City, UT	destination	VFR Sky: scattered clouds at 1,900 feet, a broken layer at 4,300 feet, overcast at 5,000 feet Weather: rain, mist	from the east-northeast (060°) at 5 knots	6 mi	4,300 ft	4,230 ft	6:54 pm MDT (00:54 UTC)

The highest airport on this list sits at 6,882 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SLC when you get there the forecast at the estimated arrival, 3:55 am MDT (09:55 UTC)

Wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet VFR

30% chance between Mon 2:00 am MDT (08:00 UTC) and 6:00 am MDT (12:00 UTC): wind variable at 10 knots, gusting to 25, light rain showers, a broken layer at 4,000 feet VFR

The whole forecast for SLC

From Sun 7:00 pm MDT (01:00 UTC): wind from the northwest at 10 knots, visibility 6 miles, light rain, mist, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
At times between Sun 7:00 pm MDT (01:00 UTC) and 9:00 pm MDT (03:00 UTC): visibility 4 miles, rain, a broken layer at 2,000 feet
From Sun 10:00 pm MDT (04:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, light rain, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
From Mon 2:00 am MDT (08:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
30% chance between Mon 2:00 am MDT (08:00 UTC) and 6:00 am MDT (12:00 UTC): wind variable at 10 knots, gusting to 25, light rain showers, a broken layer at 4,000 feet
From Mon 6:00 am MDT (12:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
From Mon 3:00 pm MDT (21:00 UTC): wind from the northwest at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet

The forecast for STL, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, clear skies
From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet

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

6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 4 nm from the route, 89 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC

Daylight

Sunset at STL 6:27 pm CDT (23:27 UTC), at SLC 6:52 pm MDT (00:52 UTC) (civil twilight ends 7:19 pm MDT (01:19 UTC)). At 120 knots the arrival at SLC is before sunrise there (7:35 am MDT (13:35 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 upper Mississippi valley · loop National Weather Service

Radar now, the southern Plains · loop National Weather Service

Radar now, the northern 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: St. Louis Lambert International, Salt Lake City International.